1．I won't be able to finish the housework without your help．（改为同义句，以下同）

  1 won't be able to finish the housework                         you                       help me．

2．I'm glad that my grandfather is healthy now．

  I'm glad that my grandfather is in                                                    now．

3． Work hard, or you will fall behind others．

                           you                       work hard，you will fall behind others．

4．1 am not sure what I can buy for my mother．

  I am not sure what                          for my mother．

5．如果你上学迟到了，老师将不让你进去。（完成翻译句子；以下同）

                          you are late for school, the teacher                            let you in．

6．那时她靠在街上卖报纸谋生．

  She                          a                           by selling newspapers in the street in those days．

7．昨天我和同学争吵起来，事后我感到很后悔。

  I             my classmate yesterday．After that I felt very sorry．

8．课后我们应多讲英语。

  We should speak English as                     as                         after class．

9．你不应该在阅览室里吸烟。

You                                                           to smoke in the reading-room．

10．请把书拿去给他并把词典给我带来。

Please                       the book to him and                            the dictionary to me．

We are lucky to live in a rich country where we have many things．However, most of us usually  1   some things．

Electricity is one thing  2  we waste most．Lights, TVs,  3  and other things are often kept on even when no one is using them．We should turn them off when we do not need them．It  4  less than a second to do it．Anyhow, not wasting electricity save money, because we do not have to  5  the electricity we do not use．

The second thing that we often waste is water． Fresh water is precious*,  6  it shouldn’t be wasted．It is only a simple matter of turning off a tap*．I am sure  7  can do this easily if he wants to．

 8  big waste is food．My mother  9  cook so much food that much of it was thrown away．I told her we had wasted so much  10  ．She thought I was right and now cooks __11_  what we can eat．

    It is not   12   to be wasteful．I find there is a simple  13   of not wasting things．That is to use only what we   14  ．Do not touch what we do not need．   15   this way we can stop being wasteful．

1． A． use                     B． wash                    C． waste                   D． forget

2． A． what                     B． that                       C． whose                  D． who

3． A． radios                   B． apples                   C． bikes                    D． doors

4． A． brings                   B． costs                    C． keeps                    D． takes

5． A． afford                   B． save                     C． pay for                 D． care for

6． A． though                  B． because                C． so                        D． but

7． A． nobody                 B． something             C． everybody            D． nothing

8． A． Others           B． Other                   C． Another                D． The other

9． A． planned to         B． used to                 C． was able to           D． was afraid to

10． A． electricity            B． water                    C． food                    D． money

11． A． mainly                 B． only                      C． mostly                  D． specially

12． A． right                   B． fine                      C． bad                      D． necessary

13． A． way                    B． thing                     C． plan              D． project

14． A． buy                     B． need                     C． bring                    D． get  

15． A． On                   B． In                        C． For                      D． At