Unit 1
I. 根据句意及汉语提示完成下列单词。
1. Gold is a soft (金属) in its natural form.
2. People are paying more and more attention to saving (能量) these days.
3. We can (循环利用) paper, bottles, wood and some other things.
4. There are many different sources (根源) of noise (污染).
5. I’m afraid they are in a (希望渺茫的) situation.
II.根据汉语提示, 完成下列句子(每空一词)。
1. 不要把好东西扔掉。
Do not ______ good things _____.
2. 人们怎么想就会怎么说，你阻止不了。
You can’t ____ people ____ ______ what they think.
3. 我觉得这事有点儿奇怪。
I feel _ ____ __ strange about the thing.
4. 像巧克力之类的甜食能使人发胖。
Sweet foods ____ __ chocolate
can make people fat.
5. 纽约和伦敦都存在交通问题。
____ New York ___ London ____ traffic problems.
参考答案：
1. metal 2. energy 3. recycle 4. pollution 5. hopeless
II. 1. throw; away 2. stop; from saying 3. a little bit 4. such as 5. Both; and; have
Unit 2
I. 根据句意及汉语提示完成句子。
1. We should r_____ waste and save energy.
2. Do you know the d___ between the Internet and the World Wide Web?
3. We should buy p______ made in China.
4. Don’t do h____ to the environment.
5. It’s n_______ to protect our earth right now.
II. 用括号中所给单词的适当形式填空。
1. I always use things for as ____ (long) as possible.
2. Of the three problems, which one do you think is __________ (simple)?
3. Today’s homework is to write an English composition about your everyday ________ (activity).
4. Things made abroad are not always better than those ________ (produce) locally.
5. When _________ (travel), you should take care of your health.
III. 汉译英。
1. 当他在玩电脑游戏的时候，我正在读书。
2. 英语与汉语有很多不同。
3. 我喜欢英语而不是数学。
参考答案：
I. 1. reduce 2. difference 3. produce 4. harm 5. necessary
II.1. long 2. the simplest 3. activities 4. produced 5. travelling
III. 1. I was reading books while he was playing computer games.
2. There are many differences between English and Chinese.
3. I like English instead of math.
Unit 3
I. 根据汉语提示完成下列句子(每空一词)。
1. Some animals have nearly________ (灭绝) because their habitats (栖息地) are being destroyed.
2. Please don’t _______________ (为……担心) your son. He isn’t a child any more.
3. This is the first time I’ve _______(听说) it!
4. The Browns are _____ (动身去) Beijing for a holiday.
5. We should ____________ (尽力) help protect the environment.
II. 从方框中选择适当的单词并加上适当的前缀或后缀,然后完成句子(每词限用一次)。
1. Smoking is one of the most _________ habits.
2. Why don’t you take this book? It’s full of _____ information.
3. I think it was _______ of you not to stand up when the teacher talked to you.
4. These new shoes are not __________ at all and I will go to the supermarket to change them for another pair.
5. There were so many mistakes in Tom’s composition that the teacher asked him to ______ it.
参考答案：
I.1. died out 2. be worried about 3. heard of 4. off to 5. try our best to
II. 1. unhealthy 2. useful 3. impolite 4. comfortable 5. rewrite
comfort write polite use health
