单选题Passage 2For Chen Hua，28，an automobile engineer in Shanghai，reading out English text aloud after taking pronunciation lessons on a mobile app has become an evening routine. Chen might skip dinner，but wouldn't trade even one language class delivered by

Passage 2For Chen Hua，28，an automobile engineer in Shanghai，reading out English text aloud after taking pronunciation lessons on a mobile app has become an evening routine. Chen might skip dinner，but wouldn't trade even one language class delivered by the app for anything.Not having been using English much since leaving college，Chen feels the pressure to pick it up using spare time. The"pressure"arises from a constant fear of being left behind as English-proficient peers appear to get ahead. Academic circles refer to this as "middle-class anxiety"，which is grasping some sections of China's population.In a report released by leading online recruiter Zhaopin in January，one-fourth of surveyed white-collar workers said they feel more stressed than inspired，citing reasons from unstable paychecks to gloomy career prospects. Most important of all many people worry that the worth and utility of their knowledge and qualifications could erode due to thriving technological progress，globalism and entrepreneurship."Intensified peer pressure, especially at workplaces, is one factor that fuels our business,"said Wang Yi, CEO of Liulishuo, an English-learning app that Chen uses every day. Wang,a Princeton computer science graduate and former product manager at Google Inc, launched the app over five years ago with the intention to disrupt China's hidebound brick-and-mortar language schools.Liulishuo-it is Chinese for"speaking fluently"-brings social media and gaming elements to the genre. Wang said that unlike pre-school or K12 education, the adult-learning market is characterized by an inherent desire for self-improvement. Students of online adult education courses feel the fee is money well spent.To personalize offerings, Liulishuo has introduced big data and algorithms to quantify multiple dimensions of speech, as well as automatically tailor courses so that the courses could walk a fine line between challenging the students and discouraging them to the extent that they quit learning.Actually, this is not just confined to language courses. China's growing learners have shown they will spend time on the right educational programs.What was the purpose of Wang Yi launching Liulishuo over five years ago?

请阅读 Passage 1，完成第21~25小题 。Passage 1As regards social conventions，we must say a word about the well-known English class system. This is an embarrassing subject for English people，and one they tend to be ashamed of ，though during the present century class-consciousness has grown less and less，and the class system less rigid.But it still exists below the surface.Broadly speaking，it means there are two classes，the "middle class" and the"working class". (We shallignore for a moment the old "upper class"，including the hereditary aristocracy，since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.) The middle class consists chiefly of well-to-do businessmen and prof essional people of all kinds.The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent.Middle-class people use slightly varying kinds of "received pronunciation" which is the kind of English spoken by BBC announcers and taught to overseas pupils.Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated.One of the biggest barriers of social equality in England is the two-class education system.To have been to a so-called "public school" immediately marks you out as one of the middle class.The middle classes tend to live a more formal life than working-class people，and are usually more cultured.Their midday meal is"lunch" and they have a rather formal evening meal called"dinner"，whereas the working man's dinner，if his working hours permit，is at midday，and his smaller，late-evening meal is called supper.As we have said，however，the class system is much less rigid than it was，and for a long time it has been government policy to reduce class distinctions.Working-class students very commonly receive a university education and enter the professions，and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However，regardless of one's social status，certain standards of politeness are expected of everybody，and a well-bred person is polite to everyone he meets，and treats a laborer with the same respect he gives an important businessman.Servility inspires both embarrassment and dislike.Even the word "sir"，except in school and in certain occupations (e.g.commerce，the army，etc.) sounds too servile to be commonly used.The most obvious difference between the working class and the middle class in English is their ____.

Practice 5　　Never has there been a language quite like English. A bold statement, yet nevertheless true. Consider a few statistics. Today, one out of every seven people in the world use English in some way. More than half the world’s books are written in English; the majority of international telephone calls are made in English; 60% of the world’s radio programs are broadcast in English. English is even the working language of international air travel. For the first time in history, a single language has become dominant across a wide range of human activity, ranging from music, film and fine arts to the fields of business, diplomacy, science and technology.

请阅读 Passage 1，完成第21~25小题 。Passage 1As regards social conventions，we must say a word about the well-known English class system. This is an embarrassing subject for English people，and one they tend to be ashamed of ，though during the present century class-consciousness has grown less and less，and the class system less rigid.But it still exists below the surface.Broadly speaking，it means there are two classes，the middle class and theworking class. (We shallignore for a moment the old upper class，including the hereditary aristocracy，since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.) The middle class consists chiefly of well-to-do businessmen and prof essional people of all kinds.The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent.Middle-class people use slightly varying kinds of received pronunciation which is the kind of English spoken by BBC announcers and taught to overseas pupils.Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated.One of the biggest barriers of social equality in England is the two-class education system.To have been to a so-called public school immediately marks you out as one of the middle class.The middle classes tend to live a more formal life than working-class people，and are usually more cultured.Their midday meal islunch and they have a rather formal evening meal calleddinner，whereas the working man's dinner，if his working hours permit，is at midday，and his smaller，late-evening meal is called supper.As we have said，however，the class system is much less rigid than it was，and for a long time it has been government policy to reduce class distinctions.Working-class students very commonly receive a university education and enter the professions，and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However，regardless of one's social status，certain standards of politeness are expected of everybody，and a well-bred person is polite to everyone he meets，and treats a laborer with the same respect he gives an important businessman.Servility inspires both embarrassment and dislike.Even the word sir，except in school and in certain occupations (e.g.commerce，the army，etc.) sounds too servile to be commonly used.The upper class in England today ____.

请阅读 Passage 1，完成第21~25小题 。Passage 1As regards social conventions，we must say a word about the well-known English class system. This is an embarrassing subject for English people，and one they tend to be ashamed of ，though during the present century class-consciousness has grown less and less，and the class system less rigid.But it still exists below the surface.Broadly speaking，it means there are two classes，the "middle class" and the"working class". (We shallignore for a moment the old "upper class"，including the hereditary aristocracy，since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.) The middle class consists chiefly of well-to-do businessmen and prof essional people of all kinds.The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent.Middle-class people use slightly varying kinds of "received pronunciation" which is the kind of English spoken by BBC announcers and taught to overseas pupils.Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated.One of the biggest barriers of social equality in England is the two-class education system.To have been to a so-called "public school" immediately marks you out as one of the middle class.The middle classes tend to live a more formal life than working-class people，and are usually more cultured.Their midday meal is"lunch" and they have a rather formal evening meal called"dinner"，whereas the working man's dinner，if his working hours permit，is at midday，and his smaller，late-evening meal is called supper.As we have said，however，the class system is much less rigid than it was，and for a long time it has been government policy to reduce class distinctions.Working-class students very commonly receive a university education and enter the professions，and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However，regardless of one's social status，certain standards of politeness are expected of everybody，and a well-bred person is polite to everyone he meets，and treats a laborer with the same respect he gives an important businessman.Servility inspires both embarrassment and dislike.Even the word "sir"，except in school and in certain occupations (e.g.commerce，the army，etc.) sounds too servile to be commonly used.Which of the following is not true about the English class system?

Passage 2For Chen Hua，28，an automobile engineer in Shanghai，reading out English text aloud after taking pronunciation lessons on a mobile app has become an evening routine. Chen might skip dinner，but wouldn't trade even one language class delivered by the app for anything.Not having been using English much since leaving college，Chen feels the pressure to pick it up using spare time. Thepressurearises from a constant fear of being left behind as English-proficient peers appear to get ahead. Academic circles refer to this as middle-class anxiety，which is grasping some sections of China's population.In a report released by leading online recruiter Zhaopin in January，one-fourth of surveyed white-collar workers said they feel more stressed than inspired，citing reasons from unstable paychecks to gloomy career prospects. Most important of all many people worry that the worth and utility of their knowledge and qualifications could erode due to thriving technological progress，globalism and entrepreneurship.Intensified peer pressure, especially at workplaces, is one factor that fuels our business,said Wang Yi, CEO of Liulishuo, an English-learning app that Chen uses every day. Wang,a Princeton computer science graduate and former product manager at Google Inc, launched the app over five years ago with the intention to disrupt China's hidebound brick-and-mortar language schools.Liulishuo-it is Chinese forspeaking fluently-brings social media and gaming elements to the genre. Wang said that unlike pre-school or K12 education, the adult-learning market is characterized by an inherent desire for self-improvement. Students of online adult education courses feel the fee is money well spent.To personalize offerings, Liulishuo has introduced big data and algorithms to quantify multiple dimensions of speech, as well as automatically tailor courses so that the courses could walk a fine line between challenging the students and discouraging them to the extent that they quit learning.Actually, this is not just confined to language courses. China's growing learners have shown they will spend time on the right educational programs.The text is mainly developed by________.

请阅读 Passage 1，完成第21~25小题 。Passage 1As regards social conventions，we must say a word about the well-known English class system. This is an embarrassing subject for English people，and one they tend to be ashamed of ，though during the present century class-consciousness has grown less and less，and the class system less rigid.But it still exists below the surface.Broadly speaking，it means there are two classes，the "middle class" and the"working class". (We shallignore for a moment the old "upper class"，including the hereditary aristocracy，since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.) The middle class consists chiefly of well-to-do businessmen and prof essional people of all kinds.The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent.Middle-class people use slightly varying kinds of "received pronunciation" which is the kind of English spoken by BBC announcers and taught to overseas pupils.Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated.One of the biggest barriers of social equality in England is the two-class education system.To have been to a so-called "public school" immediately marks you out as one of the middle class.The middle classes tend to live a more formal life than working-class people，and are usually more cultured.Their midday meal is"lunch" and they have a rather formal evening meal called"dinner"，whereas the working man's dinner，if his working hours permit，is at midday，and his smaller，late-evening meal is called supper.As we have said，however，the class system is much less rigid than it was，and for a long time it has been government policy to reduce class distinctions.Working-class students very commonly receive a university education and enter the professions，and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However，regardless of one's social status，certain standards of politeness are expected of everybody，and a well-bred person is polite to everyone he meets，and treats a laborer with the same respect he gives an important businessman.Servility inspires both embarrassment and dislike.Even the word "sir"，except in school and in certain occupations (e.g.commerce，the army，etc.) sounds too servile to be commonly used.Why isn't the word "sir" commonly used in Britain?

Passage 2As regards social conventions，we must say a word about the wel-known English class system. This is an  embarassing  subject for English people，and one they tend to be ashamed of，though during the present century class-consciousness has grown less and less，and the class system less rigid. But it still exists below the surface. Broadly speaking，it means there are two clases，themiddle classand theworking class”.（We shall ignore for a moment the old“upper class，including the hereditary aristocracy，since it is extremely small in numbers；but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.）The middle class consists chiefly of well-to-do businessmen and professional people of all kinds. The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent. Middle-class people use slightly varying kinds ofreceived pronunciationwhich is the kind of English spoken by BBC announcers and taught to overseas pupils. Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated. One of the biggest barriers of social equality in England is the two-class education system. To have been to a so-called public schoolimmediately marks you out as one of the middle class. The middle classes tend to live a more formal life than working-class people, and are usually more cultured. Their midday meal is lunchand they have a rather formal evening meal called dinner, whereas the working man's dinner, if his working hours permit, is at midday, and his smaller, late-evening meal is called supper.As we have said, however, the class system is much less rigid than it was, and for a long time it has been government policy to reduce class distinctions. Working-class students very commonly receive a university education and enter the professions, and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However, regardless of one's social status, certain standards of politeness are expected of everybody, and a well-bred person is polite to everyone he meets, and treats a laborer with the same respect he gives an important businessman. Servility inspires both embarrassment and dislike. Even the wordsir, except in school and in certain occupations(e.g. commerce, the army, etc.) sounds too servile to be commonly used.Which of the following is not true about the English class system？

Passage 2For Chen Hua，28，an automobile engineer in Shanghai，reading out English text aloud after taking pronunciation lessons on a mobile app has become an evening routine. Chen might skip dinner，but wouldn't trade even one language class delivered by the app for anything.Not having been using English much since leaving college，Chen feels the pressure to pick it up using spare time. The"pressure"arises from a constant fear of being left behind as English-proficient peers appear to get ahead. Academic circles refer to this as "middle-class anxiety"，which is grasping some sections of China's population.In a report released by leading online recruiter Zhaopin in January，one-fourth of surveyed white-collar workers said they feel more stressed than inspired，citing reasons from unstable paychecks to gloomy career prospects. Most important of all many people worry that the worth and utility of their knowledge and qualifications could erode due to thriving technological progress，globalism and entrepreneurship."Intensified peer pressure, especially at workplaces, is one factor that fuels our business,"said Wang Yi, CEO of Liulishuo, an English-learning app that Chen uses every day. Wang,a Princeton computer science graduate and former product manager at Google Inc, launched the app over five years ago with the intention to disrupt China's hidebound brick-and-mortar language schools.Liulishuo-it is Chinese for"speaking fluently"-brings social media and gaming elements to the genre. Wang said that unlike pre-school or K12 education, the adult-learning market is characterized by an inherent desire for self-improvement. Students of online adult education courses feel the fee is money well spent.To personalize offerings, Liulishuo has introduced big data and algorithms to quantify multiple dimensions of speech, as well as automatically tailor courses so that the courses could walk a fine line between challenging the students and discouraging them to the extent that they quit learning.Actually, this is not just confined to language courses. China's growing learners have shown they will spend time on the right educational programs.People surveyed feel more stressed than inspired due to the following reasons EXCEPT_______

Why do we say that reading aloud is not very useful for reading a text in class?

Passage 2As regards social conventions，we must say a word about the wel-known English class system. This is an  embarassing  subject for English people，and one they tend to be ashamed of，though during the present century class-consciousness has grown less and less，and the class system less rigid. But it still exists below the surface. Broadly speaking，it means there are two clases，themiddle classand theworking class”.（We shall ignore for a moment the old“upper class，including the hereditary aristocracy，since it is extremely small in numbers；but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.）The middle class consists chiefly of well-to-do businessmen and professional people of all kinds. The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent. Middle-class people use slightly varying kinds ofreceived pronunciationwhich is the kind of English spoken by BBC announcers and taught to overseas pupils. Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated. One of the biggest barriers of social equality in England is the two-class education system. To have been to a so-called public schoolimmediately marks you out as one of the middle class. The middle classes tend to live a more formal life than working-class people, and are usually more cultured. Their midday meal is lunchand they have a rather formal evening meal called dinner, whereas the working man's dinner, if his working hours permit, is at midday, and his smaller, late-evening meal is called supper.As we have said, however, the class system is much less rigid than it was, and for a long time it has been government policy to reduce class distinctions. Working-class students very commonly receive a university education and enter the professions, and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However, regardless of one's social status, certain standards of politeness are expected of everybody, and a well-bred person is polite to everyone he meets, and treats a laborer with the same respect he gives an important businessman. Servility inspires both embarrassment and dislike. Even the wordsir, except in school and in certain occupations(e.g. commerce, the army, etc.) sounds too servile to be commonly used.The most obvious difference between the working class and the middle class in English is their_______.

请阅读 Passage 1，完成第21~25小题 。Passage 1As regards social conventions，we must say a word about the well-known English class system. This is an embarrassing subject for English people，and one they tend to be ashamed of ，though during the present century class-consciousness has grown less and less，and the class system less rigid.But it still exists below the surface.Broadly speaking，it means there are two classes，the middle class and theworking class. (We shallignore for a moment the old upper class，including the hereditary aristocracy，since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.) The middle class consists chiefly of well-to-do businessmen and prof essional people of all kinds.The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent.Middle-class people use slightly varying kinds of received pronunciation which is the kind of English spoken by BBC announcers and taught to overseas pupils.Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated.One of the biggest barriers of social equality in England is the two-class education system.To have been to a so-called public school immediately marks you out as one of the middle class.The middle classes tend to live a more formal life than working-class people，and are usually more cultured.Their midday meal islunch and they have a rather formal evening meal calleddinner，whereas the working man's dinner，if his working hours permit，is at midday，and his smaller，late-evening meal is called supper.As we have said，however，the class system is much less rigid than it was，and for a long time it has been government policy to reduce class distinctions.Working-class students very commonly receive a university education and enter the professions，and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However，regardless of one's social status，certain standards of politeness are expected of everybody，and a well-bred person is polite to everyone he meets，and treats a laborer with the same respect he gives an important businessman.Servility inspires both embarrassment and dislike.Even the word sir，except in school and in certain occupations (e.g.commerce，the army，etc.) sounds too servile to be commonly used.Why isn't the word sir commonly used in Britain?

Passage 2For Chen Hua，28，an automobile engineer in Shanghai，reading out English text aloud after taking pronunciation lessons on a mobile app has become an evening routine. Chen might skip dinner，but wouldn't trade even one language class delivered by the app for anything.Not having been using English much since leaving college，Chen feels the pressure to pick it up using spare time. Thepressurearises from a constant fear of being left behind as English-proficient peers appear to get ahead. Academic circles refer to this as middle-class anxiety，which is grasping some sections of China's population.In a report released by leading online recruiter Zhaopin in January，one-fourth of surveyed white-collar workers said they feel more stressed than inspired，citing reasons from unstable paychecks to gloomy career prospects. Most important of all many people worry that the worth and utility of their knowledge and qualifications could erode due to thriving technological progress，globalism and entrepreneurship.Intensified peer pressure, especially at workplaces, is one factor that fuels our business,said Wang Yi, CEO of Liulishuo, an English-learning app that Chen uses every day. Wang,a Princeton computer science graduate and former product manager at Google Inc, launched the app over five years ago with the intention to disrupt China's hidebound brick-and-mortar language schools.Liulishuo-it is Chinese forspeaking fluently-brings social media and gaming elements to the genre. Wang said that unlike pre-school or K12 education, the adult-learning market is characterized by an inherent desire for self-improvement. Students of online adult education courses feel the fee is money well spent.To personalize offerings, Liulishuo has introduced big data and algorithms to quantify multiple dimensions of speech, as well as automatically tailor courses so that the courses could walk a fine line between challenging the students and discouraging them to the extent that they quit learning.Actually, this is not just confined to language courses. China's growing learners have shown they will spend time on the right educational programs.What does the underlined wordmiddle-class anxietyin Paragraph 2 referto?