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( )1. —Why were there many mistakes in Tom's homework?
—Because he did it ________.
A. carefully B. carelessly C. early D. slowly
—Because he did it ________.
A. carefully B. carelessly C. early D. slowly
答案
B 【点拨】根据“Why were there many mistakes in Tom’s homework?”可知，此处表示“因为他做得很粗心”。故选 B。
( )2. —I don't know how to ________ good habits. Can you give me a helping hand?
—Don't worry. Let me tell you.
A. dig B. form C. fine D. check
—Don't worry. Let me tell you.
A. dig B. form C. fine D. check
答案
B 【点拨】how to form good habits 如何养成好习惯。故选 B。
( )3. Everybody knows that trees can ________ dust and help keep soil in place.
A. reuse B. recycle C. reduce D. receive
A. reuse B. recycle C. reduce D. receive
答案
C 【点拨】句意：人人都知道树木可以减少灰尘，巩固土壤。reuse 再利用；recycle 回收利用；reduce 减少；receive 收到。故选 C。
( )4. Fruit and vegetables are rich ________ vitamins, minerals and fibre. You'd better eat them more.
A. for B. with C. in D. on
A. for B. with C. in D. on
答案
C 【点拨】be rich in 意为“富含”。故选 C。
( )5. —Our gas ________. How far are we from there?
—Don't worry. There are only a few kilometres to go.
A. is run out B. has run out C. is run out of D. is running out
—Don't worry. There are only a few kilometres to go.
A. is run out B. has run out C. is run out of D. is running out
答案
D
二、阅读短文，在文中空白处填入1个适当的单词，或用括号内所给单词的正确形式填空。
What will our world be like if there are no insects? It might sound nice in the __1__ (begin). There would be no bugs or flies in your room. But in fact, this could cause really serious __2__ (problem).
The bad news is that the number of insects keeps __3__ (drop) these years. Scientists say it's __4__ (main) because of the use of pesticides(杀虫剂). They destroy the places that insects live in.
What would happen if all insects died out? It's almost impossible to predict(预测), __5__ the results would be terrible. We need insects to pollinate(授粉) crops. They also break down dead plants and animals and turn them into new useful things. We need them __6__ (keep) the soil healthy. __7__ insects, many animals would have nothing to eat. They would go hungry and die.
The first thing we need to do is to let more people understand the __8__ (important) of the natural world, both for what it does for us __9__ for itself. The best place to start is with our __10__ (child). We should teach them environmental awareness(环保意识) at an early age.
1. ________ 2. ________ 3. ________ 4. ________ 5. ________
6. ________ 7. ________ 8. ________ 9. ________ 10. ________
What will our world be like if there are no insects? It might sound nice in the __1__ (begin). There would be no bugs or flies in your room. But in fact, this could cause really serious __2__ (problem).
The bad news is that the number of insects keeps __3__ (drop) these years. Scientists say it's __4__ (main) because of the use of pesticides(杀虫剂). They destroy the places that insects live in.
What would happen if all insects died out? It's almost impossible to predict(预测), __5__ the results would be terrible. We need insects to pollinate(授粉) crops. They also break down dead plants and animals and turn them into new useful things. We need them __6__ (keep) the soil healthy. __7__ insects, many animals would have nothing to eat. They would go hungry and die.
The first thing we need to do is to let more people understand the __8__ (important) of the natural world, both for what it does for us __9__ for itself. The best place to start is with our __10__ (child). We should teach them environmental awareness(环保意识) at an early age.
1. ________ 2. ________ 3. ________ 4. ________ 5. ________
6. ________ 7. ________ 8. ________ 9. ________ 10. ________
答案
1. beginning 2. problems 3. dropping 4. mainly 5. but 6. to keep 7. Without 8. importance 9. and 10. children
