第1题:
Trees____fightairpollution.Theyarenaturalairconditioners.
A.should
B.must
C.need
D.can
第2题:
______ tell a lie.
A、Hardly
B、Not
C、No
D、Never
第3题:
In charter-party,a clause states: the vessel to be employed between good and safe ports or places where she can ______.
A.safe lie always float
B.safely lie always float
C.safe lie always afloat
D.safely lie always afloat
第4题:
In autumn, the()fall down from the trees.
Aleaf
Bleafs
Cleaves
第5题:
The Interior Plains lie between()and()
第6题:
Last december you erected a bridge link between two buildings on your campus. it is now april and the foliage in the trees is full, and the bridge link will no longer maintain connectivity. Which action will most likely solve the problem?()
第7题:
第8题:
the Canadian Shield/the Appalachian Region
the Canadian Shield/the Rocky Mountains
the Great Lakes/the Arctic Islands
the Appalachian Region/the Great Lakes
第9题:
To dig for salt.
To remove the bark from the tree.
To move trees and branches to clear a path.
To pull trees and branches to establish territory.
第10题:
第11题:
safe lie always float
safely lie always float
safe lie always afloat
safely lie always afloat
第12题:
people are less likely to lie in instant messages
people are unlikely to lie in face-to-face interactions
people are most likely to lie in email communication
people are twice as likely to lie in phone conversations
第13题:
A、why
B、where
C、which
D、as
第14题:
At the meeting place of the Yangtze River and Jialing RIiver_________ ,one of the largest cities in china.
A.lies Chongqing
B. Chongqing lies
C. does lie Chongqing
D. does l Chongqing lie
第15题:
On()side of the street there are some trees.
Aboth
Beither
Cevery
Dall
第16题:
Is there any reason()you should lie ?
Awhy
Bwhere
Cwhich
Das
第17题:
Belfast Lough and Lough Neagh lie in()
第18题:
Permalloyed
Destroyed
Deployed
employed
第19题:
How trees help prevent droughts and floods.
The relationship between trees and man.
How an empire fell to pieces in ancient times.
A story of trees.
第20题:
New trees are not looked after properly.
Many trees have been cut down by man.
Man has not paid enough attention to planting trees.
All of the above.
第21题:
Because nothing remains on land except floods.
Because there are no longer trees to keep the rain and protect the top-soil.
Because too much rain sinks in and washes away the top-soil.
Because roots of the trees break up the soil.
第22题:
The lifecycle of trees.
The number of trees.
The intensity of solar burning.
The quality of air.
第23题:
There are fossilized nondeciduous trees from Antarctica that bear frost rings.
Deciduous trees are more likely to bear frost rings than are other tree varieties.
The process of fossilization does not completely obscure frost rings in deciduous trees.
Present-day deciduous trees are more sensitive to changes in temperature than were the deciduous trees of ancient Antarctica.
Prolonged and unseasonable frosts that might have occurred in Antarctica when the now-fossilized trees were still living did not always produce frost rings in deciduous trees.