Ⅰ.单句语法填空
1．Reading in bed will do harm ________ your eyes.
2．It is impossible for a cock to lay ________ (egg)．
3．(2015·浙江，16)If steel is heavier than water，why are ships able ________ (float)on the sea?
4．(2017·江西，阅读A)In his black and blue suit and with ________ oxygen tank fastened on his back，Larry dived from boats into the middle of the ocean.
5．(2017·福建，阅读B)The climate here ________ (be)quite pleasant，the temperature rarely，if ever，reaching 30℃ in summer.
6．Our success depends ________ whether everyone works hard.
7．(2015·陕西，阅读C)The destruction of such species could prevent researchers ________ (find)cures for certain diseases.
8．It was difficult for the helicopters ________ (get)close to the roof of the building because of the heavy smoke.
9．(2017·天津，6)We have launched another man－made satellite，________ is announced in today's newspaper.
10．Now that they have computers，it becomes ________ (easy)to deal with the problems.
答案 1.to 2.eggs 3.to float 4.an 5.is 6.on
7．finding 8.to get 9.which 10.easier
Ⅱ.单句改错
1．If you put your heart into it，you'll succeed on time.
2．This is such interesting a film that I have seen it twice.
3．It's no longer a question now that whether man can land on the moon.
4．Whether life will continue on the earth for millions of years to come will depend on if this problem can be solved.
5．General speaking，he is a smart boy except his carelessness.
6．The river is so polluted that every day we can see a lot of things being floating on the water.
答案 1.on→in 2.such→so 3.去掉whether 4.if→whether 5.General→Generally 6.去掉being
Ⅲ.课文浓缩语法填空
The explosion of the earth produced water vapour，__1__ turned into water when the earth __2__(cool)down.Water allowed the earth to dissolve harmful gases into the oceans and seas.That made __3__ possible for life to begin to develop.The __4__(arrive)of small plants encouraged the development __5__ early shellfish and all __6__(sort)of fish.Many millions of years later the first green plants began to appear on land.__7__(late)land animals appeared.
Some were insects.Others，called amphibians，__8__(be) able to live on land as well as in the water.Finally，some small clever animals appeared and spread all over the earth.But they treat the planet in an __9__(friend)way，and the earth becomes too __10__(pollute)．
答案 1.which 2.cooled 3.it 4.arrival 5.of
6．sorts 7.Later 8.were 9.unfriendly 10.polluted
Ⅳ.单元考点作文串记
一、根据提示翻译句子
1．land，depend on)
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2．火星上没有氧气，昼夜温差大，这使我们不能生活在那里。(make it＋adj.)
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3．火星与地球环境完全不同。(be different from)
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4．如果我们想到火星上住些日子，我们要带上氧气、食物、衣服等。(take along...with)
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5．我succeed in doing)
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答案 1.Whether we can land on Mars depends on the development of science and technology.
2．There is no oxygen on Mars and the temperature changes greatly from day to night，which makes it impossible for us to live there.
3．The environment of Mars is quite different from that of our earth.
4．If we want to stay on Mars for a few days，we should have to take along our own oxygen，food，clothing and so on with us.
5．I firmly believe that we will succeed in landing on Mars in the near future.
二、连句成篇
【参考范文】
Whether we can land on Mars depends on the development of science and technology.There is no oxygen on Mars and the temperature changes greatly from day to night，which makes it impossible for us to live there.As we all know，the environment of Mars is quite different from that of our earth.In fact，if we want to stay on Mars for a few days，we should have to take along our own oxygen，food，clothing and so on with us.However，I firmly believe that we will succeed in landing on Mars in the near future.