一、根据句意及所给中文提示、首字母或英文解释，写出句子所缺单词，每空限填一词。
1. Oil is a kind of finite ______________（资源）and we will run out of it some day.
2. To build a green country, we should ______________（分开，隔开）the waste into different groups.
3. Water is very important to us. And we should use it ______________（in a wise way）.
4. He was born into a ______________（having a lot of money）family, but he never depends on it and always works hard.
5. P______________ waste has been a serious problem, so the United Nations（联合国）is making new rules to deal with it.

1. resource 2. separate 3. wisely 4. rich 5. Plastic

二、根据句意或句子的语法要求，用括号中所给单词的适当形式填空。
1. You will ______________（fine）if you are found breaking the traffic rules.
2. —Shall we go on Friday or Saturday?
—Either day is OK. It makes no ______________（different）to me.
3. We won’t have a clear sky if air pollution is not ______________（limit）.
4. I think ______________（recycle）waste paper is a good way to solve the problem.
5. People are starting to use the ______________（energetic）from the sun, wind and water.

1. be fined 2. difference 3. limited 4. recycling 5. energy

( )1. —Does your sister spend her money ________?
—Yes, of course. She knows what to buy and what not to buy.
A. quickly
B. wisely
C. badly
D. simply

1. B [点拨]根据“She knows what to buy and what not to buy.”可判断，她花钱很明智。故选B。

( )2. To protect the environment, we are not allowed to ________ trees.
A. cut up
B. cut down
C. cut in
D. cut out

2. B [点拨]cut down砍倒。故选B。

( )3. More mistakes ________ and corrected if you go over the paper carefully for the second time.
A. are found
B. have been found
C. can be found
D. will find

3. C [点拨]本句是含有if引导的条件状语从句的复合句，遵循“主将从现”原则，即主句为一般将来时或含有情态动词，从句为一般现在时。本句中mistakes和find之间存在被动关系，应用被动语态，因此主句应使用一般将来时的被动语态或含情态动词的被动语态。故选C。

( )4. Recycling is good, so don’t ________ bottles or newspapers.
A. find out
B. hand in
C. use up
D. throw away

4. D [点拨]find out发现；hand in上交；use up用完；throw away扔掉。由recycling可知，此处表示“不要扔掉瓶子或报纸”。故选D。

( )5. These new types of energy cost very little and will never ________.
A. look out
B. come out
C. run out
D. stay out

5. C [点拨]run out用完。故选C。

( )6. I am not sure if we can hold a party in the open air, because it ________ the weather.
A. stands for
B. depends on
C. lives on
D. agrees with

6. B [点拨]depend on依赖于，取决于。故选B。

( )7. Our hometown is beautiful, and we should keep it ________.
A. on the way
B. by the way
C. in the way
D. that way

7. D