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42._________
- A. The Desert Problem
- B. People Make Deserts
- C. Green Plants and Grass
- D. The Desert,the Tree and the Water
- A. The land never stops becoming deserts.
- B. Scientists ask the people to live in the deserts and grow food there.
- C. People do bad things to the earth.
- D. Scientists may not be able to change the deserts.
- A. Because they can hold the water.
- B. Because they can stop the wind from blowing the earth away.
- C. Because they can keep the earth wet.
- D.All the above.
- A. science
- B. history
- C. travel
- D. maths
- A. Because some places don't get very much rain.
- B. Because plants don-t let the hot sun make the earth even drier.
- C. Because people don't keep the earth well.
- D. Because scientists haven-t learnt enough about the deserts.
- A. carry water'
- B.grow food
- C. do nothing
- D. study a lot
- A. there isn't enough sunlight
- B. there is too much water
- C. it is too crowded there
- D. it has little food for plants
- A. easy
- B. difficult
- C. impossible
- D. important
- A.缝隙
- B.表面
- C.夹层
- D.底部
- Another thing plants must have before they can grow is food. Whar will happen if we try to make things grow on the sandy beach? A few plants,such as beach grass,will grow in sand,L ut most plants won-t. Even if the weather is warm e
- A. two
- B. three
- C. four
- D. five
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( )19.
- A.work
- B.study hard
- C.do sports
- D.have holidays
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-
( )18.
- A.were born
- B.travel
- C.visit
- D.live
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( )20.
- A.develop
- B.produce
- C.build
- D.grow
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-
( )16.
- A.wish
- B.hate
- C.prefer
- D.mind
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-
( )17.
- A.follow
- B.miss
- C.change
- D.goon to
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-
( )15.
- A.take
- B.spend
- C.receive
- D.cost
- 38
-
( )13.
- A.Several
- B.Most
- C.A few
- D.Few
- 39
-
( )14.
- A. worry about
- B. pay for
- C. ask for
- D. make sure
- 40
-
( )12.
- A.leave
- B.begin
- C.say
- D.pass
- A.and
- B.though
- C.until
- D.since
- A. put off
- B. put down
- C.is put olf
- D.is put down
- A. will be
- B. were
- C. are
- D. have been
- A. take after
- B. similar to
- C. the same as
- D. am after
- A. Not only ;and '
- B. Not only ;but also
- C.Not ;butalso
- D.Both;but
- A. to talk ;reading &n
- B. to talk; to read
- C. talking; reading .
- D. talking; to read
- A.With
- B.Be
- C.Being
- D.For
- A. give off
- B. give out
- C. giving off
- D. giving out
- A. from
- B. since
- C. to
- D. for
- A. the ill'
- B. the sick
- C. illness
- D. sick
- A.come up
- B.come out
- C.come up with
- D.come over