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问答题Practice 2 You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in l new blood for you. If the blood is too differ
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问答题
Practice 2 You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in l new blood for you. If the blood is too different from your own, the transfusion could kill you. There are four basic types of blood：A, B, AB, and O. A simple test can 2 a person’s blood type, which, like hair color and height, is 3 from parents. Because of substances contained in each type, the four groups must be transfused 4 . Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group；hence, it is often called the universal 5 . For the opposite reason. AB is sometimes called the universal 6 . However, because so many reactions can occur in transfusions, patients usually receive only salt or plasma. until their blood can be 7 as exactly as possible in the blood bank of a hospital. In this way. it is possible to 8 any bad reactions to the transfusion. There is a relationship between your blood type and your 9 . Among Europeans and people of European ancestry, about 42 percent have type A while 45 percent have type O. The rarest is type AB. Other races have different 10 . For example, some American Indian groups have nearly 100 percent type O.[A] selecting [B] avoid [C] carefully[D] cover [E] inherited [F] percentages[G] recipient [H] matched [I] indicate[J] nationality [K] simulating [L] donor[M] pursuit [N] liberated [O] meaningfully
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更多“问答题Practice 2 You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in l new blood for you. If the blood is too differe”相关问题
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第1题：
Passage Four
You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you.
There are four basic types of blood; A, B, AB and O. A simple test can indicate a person's blood type. Everybody is born with one of these four types of blood. Blood type, like hair color and height, is inherited from parents.
Because of substances contained in each type, the four groups must be transfused carefully. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group, hence it is often called the universal donor. For the opposite reason, AB sometimes called the universal recipient. However, because so many reactions can occur in transfusions, patients usually receive only' salt or plasma until their blood can be matched as exactly as possible in the blood bank of a hospital. In this way, it is possible to avoid any bad reactions to the transfusion.
There is a relationship between your blood type and your nationality. Among Europeans and people of European ancestry, about 42 percent have type A while 45 percent have type O. The rarest is type AB. Other races have different percentages. For example, some American Indian groups have nearly 100 percent type O.
48. A good title for this passage is______.
A. Getting Blood and Plasma
B. Special Blood and Colors
C. Human Blood Types
D. The Blood Bank of a Hospital
正确答案：C
本文讲的就是人的血型。 -
第2题：
If you came into contact with nitrobenzene while disconnecting the cargo hose, you should be aware that it is ______.
A.highly toxic when absorbed through the skin
B.a blood poison
C.a nerve poison
D.All of the above
正确答案：D
当你断开货物软管时，你与硝基苯接触过，你应该明白这是剧毒，通过皮肤吸收、血液毒性、神经毒性。 -
第3题：
共用题干
第二篇
Diabetes（糖尿病）and Eye Damage
Over 2 million Canadians have diabetes.It is the leading cause of blindness in North
Americans under 65 years of age.Diabetes is a condition where the body either cannot
produce enough insulin（胰岛素）or cannot respond properly to insulin. Insulin is important
because it moves glucose（葡萄糖）,a simple sugar, into the body's cells from the blood.
The food people eat provides the body with glucose,which is used by the cells as a source
of energy.If insulin isn't available or doesn't work correctly to move glucose from the blood
into the cells,glucose will stay in the blood,leading to high blood sugar levels.
High blood sugar levels damage the blood vessels,including the tiny blood vessels in
the eye．This leads to an eye disease known as diabetic retinopathy（糖尿病型视网膜病）.
The retina（视网膜）is an area at the back of the eye that changes light into nerve signals.
With diabetic retinopathy,some blood vessels in the retina are lost,and some of the other
blood vessels begin to"leak"blood.This causes the retina to swell,and gradually cuts off
its supply of oxygen and nutrients（滋养物）.Eventually , the retina starts to grow new
blood vessels to replace the damaged ones.Unfortunately,these new vessels are not as
strong as the old ones.They are more likely to break,causing bleeding in the eye.
At first,people with diabetic retinopathy will not notice any symptoms.As the disease
gets worse , they may notice blurred（模糊的）vision, black spots or flashing lights. As
time goes on,it can progress to blindness.Everyone with diabetes is at risk for diabetic
retinopathy,and the risk increases the longer you've had diabetes.
Fortunately,you can reduce your risk.If you do not have diabetes,but think you may
be at risk for this condition,visit your doctor to be screened for diabetes.If you do have
diabetes:
Have frequent eye check-ups.
Make sure that you monitor your blood sugar frequently and use your medications as
recommended by your doctor. There is evidence to show that keeping your blood sugar
under tight control can slow down eye damage.
If you have high blood pressure,follow your recommended diet and medications to
keep it under control.If you are not sure whether you have high blood pressure,or whether
your blood pressure is under control,discuss this with your doctor.The word"its"in the second paragraph refers to
A: the nerve's.
B:the blood's.
C:the eye's.
D: the retina's,答案：D解析： -
第4题：
共用题干
第二篇
Diabetes（糖尿病）and Eye Damage
Over 2 million Canadians have diabetes.It is the leading cause of blindness in North
Americans under 65 years of age.Diabetes is a condition where the body either cannot
produce enough insulin（胰岛素）or cannot respond properly to insulin. Insulin is important
because it moves glucose（葡萄糖）,a simple sugar, into the body's cells from the blood.
The food people eat provides the body with glucose,which is used by the cells as a source
of energy.If insulin isn't available or doesn't work correctly to move glucose from the blood
into the cells,glucose will stay in the blood,leading to high blood sugar levels.
High blood sugar levels damage the blood vessels,including the tiny blood vessels in
the eye．This leads to an eye disease known as diabetic retinopathy（糖尿病型视网膜病）.
The retina（视网膜）is an area at the back of the eye that changes light into nerve signals.
With diabetic retinopathy,some blood vessels in the retina are lost,and some of the other
blood vessels begin to"leak"blood.This causes the retina to swell,and gradually cuts off
its supply of oxygen and nutrients（滋养物）.Eventually , the retina starts to grow new
blood vessels to replace the damaged ones.Unfortunately,these new vessels are not as
strong as the old ones.They are more likely to break,causing bleeding in the eye.
At first,people with diabetic retinopathy will not notice any symptoms.As the disease
gets worse , they may notice blurred（模糊的）vision, black spots or flashing lights. As
time goes on,it can progress to blindness.Everyone with diabetes is at risk for diabetic
retinopathy,and the risk increases the longer you've had diabetes.
Fortunately,you can reduce your risk.If you do not have diabetes,but think you may
be at risk for this condition,visit your doctor to be screened for diabetes.If you do have
diabetes:
Have frequent eye check-ups.
Make sure that you monitor your blood sugar frequently and use your medications as
recommended by your doctor. There is evidence to show that keeping your blood sugar
under tight control can slow down eye damage.
If you have high blood pressure,follow your recommended diet and medications to
keep it under control.If you are not sure whether you have high blood pressure,or whether
your blood pressure is under control,discuss this with your doctor.To slow down eye damage,people with diabetes should try to
A: use as many medications as they can.
B: eat as little as possible.
C: wear glasses as often as possible.
D: keep their blood sugar under tight control.答案：D解析： -
第5题：
You have been badly injured in a car accident．It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident．However,special care must be taken in selecting new blood for you．If the blood is too different from your own,the transfusion could kill you.
There are four basic types of blood;A,B,AB and O．A simple test can indicate a person's blood type．Everybody is born with one of these four types of blood．Blood type,like hair color and height,is inherited from parents.
Because of substances contained in each type,the four groups must be trans fused carefully．Basically,A and B cannot be mixed．A and B cannot receive AB,but AB may receive A or B．O can give to any other group,hence it is often called the universal donor．For the opposite reason,AB sometimes called the universal recipient．However,because so many reactions can occur in transfusions,patients usually receive only salt or plasma until their blood can be matched as exactly as possible in the blood bank of a hospital．In this way,it is possible to avoid any bad reactions to the transfusion.
There is a relationship between your blood type and your nationality．Among Europeans and people of European ancestry,about 42 percent have type A while 45 percent have type O．The rarest is type AB．Other races have different percentages．For example,some American Indian groups have nearly 100 percent type O.
If you need a transfusion,the best and safest blood for you is__.A.type AB
B.exactly the same type as yours
C.a mixture of salt,plasma and type O
D.type A答案：B解析：参见第二段。 -
第6题：
You have been badly injured in a car accident．It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident．However,special care must be taken in selecting new blood for you．If the blood is too different from your own,the transfusion could kill you.
There are four basic types of blood;A,B,AB and O．A simple test can indicate a person's blood type．Everybody is born with one of these four types of blood．Blood type,like hair color and height,is inherited from parents.
Because of substances contained in each type,the four groups must be trans fused carefully．Basically,A and B cannot be mixed．A and B cannot receive AB,but AB may receive A or B．O can give to any other group,hence it is often called the universal donor．For the opposite reason,AB sometimes called the universal recipient．However,because so many reactions can occur in transfusions,patients usually receive only salt or plasma until their blood can be matched as exactly as possible in the blood bank of a hospital．In this way,it is possible to avoid any bad reactions to the transfusion.
There is a relationship between your blood type and your nationality．Among Europeans and people of European ancestry,about 42 percent have type A while 45 percent have type O．The rarest is type AB．Other races have different percentages．For example,some American Indian groups have nearly 100 percent type O.
People with type A blood can receive__.A.AB
B.B
C.O
D.None of the above答案：C解析：根据句子“Basically,A and B cannot be mixed．A and B cannot receive AB”可以推论出，A型可以接受A型和0型的血。 -
第7题：
共用题干
第二篇
Bone Marrow Transplantation
Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.
If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.
People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.
The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.
If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.
Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.
On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.Healthy stem cells may come from the following sources EXCEPT__________.
A:peripheral blood stem cells
B:baby blood
C:bone marrow
D:cord blood答案：B解析：细节题。第三段最后一句：通常新骨髓来源于一个捐献者，或者是血缘亲近的家人，或者是无血缘关系的陌生人。B不全面，C“器官捐献者”，也不正确。
词义推断题。第一段第二句：它包括不成熟的细胞，被称作干细胞。A是 “主要的”,B是“杰出的”,D是“重要的”，只有C是“发育不完全的”。
细节题。由第四段可以看出，A、C、D都是文章提到的，只有B"婴儿的血液”除外。
细节题。倒数第二段提到了生病的细胞一定要被破坏掉，A和B都是破坏的方式，都不全面。C意思不明，且与文义不符。D的意思是被彻底破坏掉。
推断题。A选项文章没有提及。C选项语气过于绝对，文章中没有如此说明。第三段第一句说癌症患者有时会在治疗前捐出骨髓用于日后的移植，D选项说必须，则是不正确的。从文章中可以看出，骨髓移植是很复杂的，因此B选项是可以推断出来的。 -
第8题：
共用题干
第三篇
Sprained（扭伤）Ankle
One of the most common injuries teenagers and adults experience is a sprained ankle.A sprain occurs
when the ligaments（韧带）of a joint are twisted（扭伤）and possibly torn. Ligaments are bands of fibers that
hold the bones of a joint in position.A sprain can occur from a sudden twisting at the joint,or a stretching or
tearing of the fibers of the ligaments. The injured area usually swells（肿胀）and becomes black and blue.
Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can
leave you rolling on the ground in pain with an ankle on fire!If you cannot walk without experiencing intense
pain,you must seek medical help.If the pain is manageable,and you can walk,here are three words to help
you remember how to treat yourself:
● Elevate（抬高）
●Cool
● Bandage（打绷带）
As soon as there is injury to that ligament,there will be a certain amount of bleeding under the skin.
Once the blood poois around the damaged blood vessels,swelling occurs.The pressure from the swelling
results in additional stress and tenderness to the region.In order to reduce the degree of swelling,lie down as
soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next,to reduce
blood distribution and keep bleeding（流血）to a minimum , apply a cold pack. After 20 minutes , take the
pack off,wait half an hour,and then reapply.This can be done several times a day for a total of three days.
Never leave a cold pack on for more than 20 minutes at a time.Reducing the temperature in that area for
an extended period of time signals the body to increase blood flow to raise the body temperature!Therefore,
one accidentally triggers（引起）more blood distribution to the affected area by leaving a cold pack on for too
long!Finally,bandage the ankle.Be careful not to wind it too tightly;doing so can restrict blood flow and
cause harm to the entire foot.The word "it" in Paragraph 2(Line 5)refers to__________.
A:injury
B:pressure
C:ankle
D:swelling答案：C解析：由文章第一段第二句“A sprain occurs when the ligaments of a joint are twisted...”可 知选A。
由文章第一段第五句“ The injured area usually swells and becomes black and blue”可知受 伤的地方会肿起来而且皮肤会青一块紫一块的。
由第二段第五行it前的“keep the ankle elevated”可知是将脚躁抬高，使其超过心脏的 位置。
由文章第二段倒数第二句“wait half an hour , and then reapply”可知选A。 reapply意为 “重新做”。
通读全文可知，文章主要讲的是当脚躁扭伤时，我们应该怎样进行处理。故选B,.第5部分：补全短文 -
第9题：
共用题干
第三篇
Sprained（扭伤）Ankle
One of the most common injuries teenagers and adults experience is a sprained ankle.A sprain occurs
when the ligaments（韧带）of a joint are twisted（扭伤）and possibly torn. Ligaments are bands of fibers that
hold the bones of a joint in position.A sprain can occur from a sudden twisting at the joint,or a stretching or
tearing of the fibers of the ligaments. The injured area usually swells（肿胀）and becomes black and blue.
Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can
leave you rolling on the ground in pain with an ankle on fire!If you cannot walk without experiencing intense
pain,you must seek medical help.If the pain is manageable,and you can walk,here are three words to help
you remember how to treat yourself:
● Elevate（抬高）
●Cool
● Bandage（打绷带）
As soon as there is injury to that ligament,there will be a certain amount of bleeding under the skin.
Once the blood poois around the damaged blood vessels,swelling occurs.The pressure from the swelling
results in additional stress and tenderness to the region.In order to reduce the degree of swelling,lie down as
soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next,to reduce
blood distribution and keep bleeding（流血）to a minimum , apply a cold pack. After 20 minutes , take the
pack off,wait half an hour,and then reapply.This can be done several times a day for a total of three days.
Never leave a cold pack on for more than 20 minutes at a time.Reducing the temperature in that area for
an extended period of time signals the body to increase blood flow to raise the body temperature!Therefore,
one accidentally triggers（引起）more blood distribution to the affected area by leaving a cold pack on for too
long!Finally,bandage the ankle.Be careful not to wind it too tightly;doing so can restrict blood flow and
cause harm to the entire foot.The main idea of the passage is to explain__________.
A:how a sprain occurs
B:how to treat a sprained ankle
C:how to reduce the temperature of a wounded area
D:how to bandage an injured foot答案：B解析：由文章第一段第二句“A sprain occurs when the ligaments of a joint are twisted...”可 知选A。
由文章第一段第五句“ The injured area usually swells and becomes black and blue”可知受 伤的地方会肿起来而且皮肤会青一块紫一块的。
由第二段第五行it前的“keep the ankle elevated”可知是将脚躁抬高，使其超过心脏的 位置。
由文章第二段倒数第二句“wait half an hour , and then reapply”可知选A。 reapply意为 “重新做”。
通读全文可知，文章主要讲的是当脚躁扭伤时，我们应该怎样进行处理。故选B,.第5部分：补全短文 -
第10题：
共用题干
第三篇
Sprained（扭伤）Ankle
One of the most common injuries teenagers and adults experience is a sprained ankle.A sprain occurs
when the ligaments（韧带）of a joint are twisted（扭伤）and possibly torn. Ligaments are bands of fibers that
hold the bones of a joint in position.A sprain can occur from a sudden twisting at the joint,or a stretching or
tearing of the fibers of the ligaments. The injured area usually swells（肿胀）and becomes black and blue.
Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can
leave you rolling on the ground in pain with an ankle on fire!If you cannot walk without experiencing intense
pain,you must seek medical help.If the pain is manageable,and you can walk,here are three words to help
you remember how to treat yourself:
● Elevate（抬高）
●Cool
● Bandage（打绷带）
As soon as there is injury to that ligament,there will be a certain amount of bleeding under the skin.
Once the blood poois around the damaged blood vessels,swelling occurs.The pressure from the swelling
results in additional stress and tenderness to the region.In order to reduce the degree of swelling,lie down as
soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next,to reduce
blood distribution and keep bleeding（流血）to a minimum , apply a cold pack. After 20 minutes , take the
pack off,wait half an hour,and then reapply.This can be done several times a day for a total of three days.
Never leave a cold pack on for more than 20 minutes at a time.Reducing the temperature in that area for
an extended period of time signals the body to increase blood flow to raise the body temperature!Therefore,
one accidentally triggers（引起）more blood distribution to the affected area by leaving a cold pack on for too
long!Finally,bandage the ankle.Be careful not to wind it too tightly;doing so can restrict blood flow and
cause harm to the entire foot.A sprain is caused by_________.
A:ligament fibers of a joint being twisted
B:constantly changing body temperature
C:blood vessels being hurt in the foot
D:elevating one's ankle答案：A解析：由文章第一段第二句“A sprain occurs when the ligaments of a joint are twisted...”可 知选A。
由文章第一段第五句“ The injured area usually swells and becomes black and blue”可知受 伤的地方会肿起来而且皮肤会青一块紫一块的。
由第二段第五行it前的“keep the ankle elevated”可知是将脚躁抬高，使其超过心脏的 位置。
由文章第二段倒数第二句“wait half an hour , and then reapply”可知选A。 reapply意为 “重新做”。
通读全文可知，文章主要讲的是当脚躁扭伤时，我们应该怎样进行处理。故选B,.第5部分：补全短文 -
第11题：
单选题What is the new discovery about?AConverting A, B and AB blood types into type O blood.
BA safe way of transfusing blood.
CAn important use of type O blood.
正确答案： A解析： 新闻中提到Now an international team of scientists believe they have found a way to convert A, B and AB blood types into O type, making it safe to transfusions.因此，这里的新发现是指将A、B以及AB型血转换成O型血的方法。
【录音原文】
O type blood can be transfused safely into humans of any blood type without medical risk. The problem is that it’s not always readily available for those who desperately need blood. Now an international team of scientists believe they have found a way to convert A, B and AB blood types into O type, making it safe to transfusions. Professor Orson of Long University Hospital in Sweden is one of report's authors. -
第12题：
单选题If you have high blood pressure, you should _____ eating too much salt.Aescape
Bsuggest
Cavoid
Drelieve
正确答案： A解析：
avoid避免。relieve减轻，救援。 -
第13题：
If you need a transfusion, the best and safest blood for you is______.
A. type AB
B. exactly the same type as yours
C. a mixture of salt, plasma and type O
D. type A
正确答案：B
参见第二段。 -
第14题：
共用题干
第二篇
Diabetes（糖尿病）and Eye Damage
Over 2 million Canadians have diabetes.It is the leading cause of blindness in North
Americans under 65 years of age.Diabetes is a condition where the body either cannot
produce enough insulin（胰岛素）or cannot respond properly to insulin. Insulin is important
because it moves glucose（葡萄糖）,a simple sugar, into the body's cells from the blood.
The food people eat provides the body with glucose,which is used by the cells as a source
of energy.If insulin isn't available or doesn't work correctly to move glucose from the blood
into the cells,glucose will stay in the blood,leading to high blood sugar levels.
High blood sugar levels damage the blood vessels,including the tiny blood vessels in
the eye．This leads to an eye disease known as diabetic retinopathy（糖尿病型视网膜病）.
The retina（视网膜）is an area at the back of the eye that changes light into nerve signals.
With diabetic retinopathy,some blood vessels in the retina are lost,and some of the other
blood vessels begin to"leak"blood.This causes the retina to swell,and gradually cuts off
its supply of oxygen and nutrients（滋养物）.Eventually , the retina starts to grow new
blood vessels to replace the damaged ones.Unfortunately,these new vessels are not as
strong as the old ones.They are more likely to break,causing bleeding in the eye.
At first,people with diabetic retinopathy will not notice any symptoms.As the disease
gets worse , they may notice blurred（模糊的）vision, black spots or flashing lights. As
time goes on,it can progress to blindness.Everyone with diabetes is at risk for diabetic
retinopathy,and the risk increases the longer you've had diabetes.
Fortunately,you can reduce your risk.If you do not have diabetes,but think you may
be at risk for this condition,visit your doctor to be screened for diabetes.If you do have
diabetes:
Have frequent eye check-ups.
Make sure that you monitor your blood sugar frequently and use your medications as
recommended by your doctor. There is evidence to show that keeping your blood sugar
under tight control can slow down eye damage.
If you have high blood pressure,follow your recommended diet and medications to
keep it under control.If you are not sure whether you have high blood pressure,or whether
your blood pressure is under control,discuss this with your doctor.With diabetic retinopathy,the damaged blood vessels in the retina
A:are stronger than what they used to be.
B: cannot be properly replaced.
C:are more likely to break than the new ones.
D: may return to normal again.答案：B解析： -
第15题：
共用题干
第二篇
Diabetes（糖尿病）and Eye Damage
Over 2 million Canadians have diabetes.It is the leading cause of blindness in North
Americans under 65 years of age.Diabetes is a condition where the body either cannot
produce enough insulin（胰岛素）or cannot respond properly to insulin. Insulin is important
because it moves glucose（葡萄糖）,a simple sugar, into the body's cells from the blood.
The food people eat provides the body with glucose,which is used by the cells as a source
of energy.If insulin isn't available or doesn't work correctly to move glucose from the blood
into the cells,glucose will stay in the blood,leading to high blood sugar levels.
High blood sugar levels damage the blood vessels,including the tiny blood vessels in
the eye．This leads to an eye disease known as diabetic retinopathy（糖尿病型视网膜病）.
The retina（视网膜）is an area at the back of the eye that changes light into nerve signals.
With diabetic retinopathy,some blood vessels in the retina are lost,and some of the other
blood vessels begin to"leak"blood.This causes the retina to swell,and gradually cuts off
its supply of oxygen and nutrients（滋养物）.Eventually , the retina starts to grow new
blood vessels to replace the damaged ones.Unfortunately,these new vessels are not as
strong as the old ones.They are more likely to break,causing bleeding in the eye.
At first,people with diabetic retinopathy will not notice any symptoms.As the disease
gets worse , they may notice blurred（模糊的）vision, black spots or flashing lights. As
time goes on,it can progress to blindness.Everyone with diabetes is at risk for diabetic
retinopathy,and the risk increases the longer you've had diabetes.
Fortunately,you can reduce your risk.If you do not have diabetes,but think you may
be at risk for this condition,visit your doctor to be screened for diabetes.If you do have
diabetes:
Have frequent eye check-ups.
Make sure that you monitor your blood sugar frequently and use your medications as
recommended by your doctor. There is evidence to show that keeping your blood sugar
under tight control can slow down eye damage.
If you have high blood pressure,follow your recommended diet and medications to
keep it under control.If you are not sure whether you have high blood pressure,or whether
your blood pressure is under control,discuss this with your doctor.The worst eye damage induced by diabetes is
A:blurred vision.
B: black spots,
C: blindness.
D: flashing lights.答案：C解析： -
第16题：
You have been badly injured in a car accident．It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident．However,special care must be taken in selecting new blood for you．If the blood is too different from your own,the transfusion could kill you.
There are four basic types of blood;A,B,AB and O．A simple test can indicate a person's blood type．Everybody is born with one of these four types of blood．Blood type,like hair color and height,is inherited from parents.
Because of substances contained in each type,the four groups must be trans fused carefully．Basically,A and B cannot be mixed．A and B cannot receive AB,but AB may receive A or B．O can give to any other group,hence it is often called the universal donor．For the opposite reason,AB sometimes called the universal recipient．However,because so many reactions can occur in transfusions,patients usually receive only salt or plasma until their blood can be matched as exactly as possible in the blood bank of a hospital．In this way,it is possible to avoid any bad reactions to the transfusion.
There is a relationship between your blood type and your nationality．Among Europeans and people of European ancestry,about 42 percent have type A while 45 percent have type O．The rarest is type AB．Other races have different percentages．For example,some American Indian groups have nearly 100 percent type O.
A good title for this passage is__.A.Getting Blood arid Plasma
B.Special Blood and Colors
C.Human Blood Types
D.The Blood Bank of a Hospital答案：C解析：本文讲的就是人的血型。 -
第17题：
You have been badly injured in a car accident．It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident．However,special care must be taken in selecting new blood for you．If the blood is too different from your own,the transfusion could kill you.
There are four basic types of blood;A,B,AB and O．A simple test can indicate a person's blood type．Everybody is born with one of these four types of blood．Blood type,like hair color and height,is inherited from parents.
Because of substances contained in each type,the four groups must be trans fused carefully．Basically,A and B cannot be mixed．A and B cannot receive AB,but AB may receive A or B．O can give to any other group,hence it is often called the universal donor．For the opposite reason,AB sometimes called the universal recipient．However,because so many reactions can occur in transfusions,patients usually receive only salt or plasma until their blood can be matched as exactly as possible in the blood bank of a hospital．In this way,it is possible to avoid any bad reactions to the transfusion.
There is a relationship between your blood type and your nationality．Among Europeans and people of European ancestry,about 42 percent have type A while 45 percent have type O．The rarest is type AB．Other races have different percentages．For example,some American Indian groups have nearly 100 percent type O.
The word“hence”in line 10 means__.A.always
B.often
C.therefore
D.seldom答案：C解析：通过上下文可知，hence这里就是“因此”的意思。 -
第18题：
共用题干
第二篇
Bone Marrow Transplantation
Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.
If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.
People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.
The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.
If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.
Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.
On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.Before receiving healthy cells,diseased cells must_________.
A:undergo chemotherapy
B:go through radiation
C:be prepared
D:be wrecked答案：D解析：细节题。第三段最后一句：通常新骨髓来源于一个捐献者，或者是血缘亲近的家人，或者是无血缘关系的陌生人。B不全面，C“器官捐献者”，也不正确。
词义推断题。第一段第二句：它包括不成熟的细胞，被称作干细胞。A是 “主要的”,B是“杰出的”,D是“重要的”，只有C是“发育不完全的”。
细节题。由第四段可以看出，A、C、D都是文章提到的，只有B"婴儿的血液”除外。
细节题。倒数第二段提到了生病的细胞一定要被破坏掉，A和B都是破坏的方式，都不全面。C意思不明，且与文义不符。D的意思是被彻底破坏掉。
推断题。A选项文章没有提及。C选项语气过于绝对，文章中没有如此说明。第三段第一句说癌症患者有时会在治疗前捐出骨髓用于日后的移植，D选项说必须，则是不正确的。从文章中可以看出，骨髓移植是很复杂的，因此B选项是可以推断出来的。 -
第19题：
共用题干
第二篇
Bone Marrow Transplantation
Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.
If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.
People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.
The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.
If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.
Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.
On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.We can infer from this passage that_________.
A:bone marrow transplantation requires five procedures
B:bone marrow transplantation is complex
C:people with leukemia must need transplantation
D:people with cancer must donate bone marrow before treatment答案：B解析：细节题。第三段最后一句：通常新骨髓来源于一个捐献者，或者是血缘亲近的家人，或者是无血缘关系的陌生人。B不全面，C“器官捐献者”，也不正确。
词义推断题。第一段第二句：它包括不成熟的细胞，被称作干细胞。A是 “主要的”,B是“杰出的”,D是“重要的”，只有C是“发育不完全的”。
细节题。由第四段可以看出，A、C、D都是文章提到的，只有B"婴儿的血液”除外。
细节题。倒数第二段提到了生病的细胞一定要被破坏掉，A和B都是破坏的方式，都不全面。C意思不明，且与文义不符。D的意思是被彻底破坏掉。
推断题。A选项文章没有提及。C选项语气过于绝对，文章中没有如此说明。第三段第一句说癌症患者有时会在治疗前捐出骨髓用于日后的移植，D选项说必须，则是不正确的。从文章中可以看出，骨髓移植是很复杂的，因此B选项是可以推断出来的。 -
第20题：
共用题干
第二篇
Bone Marrow Transplantation
Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.
If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.
People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.
The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.
If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.
Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.
On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.The new marrow usually comes from__________.
A:people with cancer
B:a family member
C:an organ donor
D:a relative or a stranger答案：D解析：细节题。第三段最后一句：通常新骨髓来源于一个捐献者，或者是血缘亲近的家人，或者是无血缘关系的陌生人。B不全面，C“器官捐献者”，也不正确。
词义推断题。第一段第二句：它包括不成熟的细胞，被称作干细胞。A是 “主要的”,B是“杰出的”,D是“重要的”，只有C是“发育不完全的”。
细节题。由第四段可以看出，A、C、D都是文章提到的，只有B"婴儿的血液”除外。
细节题。倒数第二段提到了生病的细胞一定要被破坏掉，A和B都是破坏的方式，都不全面。C意思不明，且与文义不符。D的意思是被彻底破坏掉。
推断题。A选项文章没有提及。C选项语气过于绝对，文章中没有如此说明。第三段第一句说癌症患者有时会在治疗前捐出骨髓用于日后的移植，D选项说必须，则是不正确的。从文章中可以看出，骨髓移植是很复杂的，因此B选项是可以推断出来的。 -
第21题：
共用题干
第二篇
Bone Marrow Transplantation
Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.
If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.
People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.
The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.
If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.
Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.
On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.The word"immature"in paragraph 1 means___________.
A:major
B:outstanding
C:underdeveloped
D:significant答案：C解析：细节题。第三段最后一句：通常新骨髓来源于一个捐献者，或者是血缘亲近的家人，或者是无血缘关系的陌生人。B不全面，C“器官捐献者”，也不正确。
词义推断题。第一段第二句：它包括不成熟的细胞，被称作干细胞。A是 “主要的”,B是“杰出的”,D是“重要的”，只有C是“发育不完全的”。
细节题。由第四段可以看出，A、C、D都是文章提到的，只有B"婴儿的血液”除外。
细节题。倒数第二段提到了生病的细胞一定要被破坏掉，A和B都是破坏的方式，都不全面。C意思不明，且与文义不符。D的意思是被彻底破坏掉。
推断题。A选项文章没有提及。C选项语气过于绝对，文章中没有如此说明。第三段第一句说癌症患者有时会在治疗前捐出骨髓用于日后的移植，D选项说必须，则是不正确的。从文章中可以看出，骨髓移植是很复杂的，因此B选项是可以推断出来的。 -
第22题：
单选题If you came into contact with nitrobenzene while disconnecting the cargo hose，you should be aware that it is（）.Ahighly toxic when absorbed through the skin
Ba blood poison
Ca nerve poison
DAll of the above
正确答案： D解析： 暂无解析 -
第23题：
单选题If you have high blood pressure, you should_____eating too much salty food.Aescape
Bsuggest
Cavoid
Drelax
正确答案： D解析：