2017届高考英语一轮复习梯级训练： Unit 2（人教版必修4）

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　　梯级演练·强技提能

　　Ⅰ. 完成句子

　　1. (2017·浙江高考)Bearsfat stores throughout the summer and fall to have energy enough to last them through their winter sleep.

　　熊在整个夏天和秋天积蓄脂肪以度过冬眠期。

　　2. (2017·四川高考)New technologies havenew products faster and at a lower cost.

　　新的技术已经让以更低的成本更快地生产出新的产品成为可能。

　　3. (2017·全国卷Ⅰ)This restaurant wasn’tthat other restaurant we went to.

　　这个餐馆不及我们去的另一家餐馆一半好。

　　4. —To get a slim figure, Fanny has tried many ways, but in vain.

　　—So now she isanything for supper.

　　——为了有一个苗条的体形, 范妮尝试了许多方法, 但都徒劳。

　　——因此现在她被迫晚饭什么都不吃。

　　5. (2017·南宁模拟)The newly-built hospital is reportedthe latest instruments made in the USA.

　　据报道新建的医院配备了美国生产的最新设备。

　　6. You shouldthe bad habit as soon as possible.

　　你应该尽快改掉这个坏习惯。

　　7. My father suggests that I should take some noteswhile listening to the teachers in class.

　　我父亲建议我在课堂上听老师讲课时如果必要的话要做笔记。

　　1. build up

　　2. made it possible to turn out

　　3. half as good as

　　4. reduced to not eating

　　5. to have been equipped with

　　6. get rid of

　　7. if necessary

　　Ⅱ. 句型转换

　　1. We got three times as many people as we had expected.

　　=The people we got werewe had expected.

　　2. As a result of the bad weather, the match had been cancelled.

　　=_____________ the bad weather, the match had been cancelled.

　　3. You’ve done well at school, which satisfies me.

　　=You’ve done well at school.

　　I_____________ you.

　　4. The children would walk there rather than take a bus.

　　=The children_____________ there_____________ a bus.

　　5. Her father’s death was caused by heart failure.

　　=Heart failure_____________ her father’s death.

　　6. Lack of food leads to poor health and, therefore, sickness.

　　=_____________ leads to poor health and, therefore, sickness.

　　7. I hope you will protect yourself from tobacco and alcohol.

　　=I hope you will_______ yourself______ tobacco and alcohol.

　　8. To do some English practice before class becomes a rule.

　　=We_____________ some English practice before class.

　　9. The number of employees was reduced from40to25.

　　=The number of employees was_____________.

　　10. He thinks little about fame and money.

　　=He_____________ fame and money.

　　答案: 1. twice more than

　　2. Because of/Owing to

　　3. am satisfied with

　　4. would rather walk

　　than take

　　5. led to

　　6. Not having enough food

　　7. keep

　　free from/of

　　8. make it a rule to do

　　9. reduced by15

　　10. cares little about

　　Ⅲ. 语篇完形

　　Yuan Longping is one of the most famous scientists in the world. He 1. (struggle)for the past five decades for the Chinese farmers. He grows 2. _______ is called super hybrid rice. This special strain of rice makes 3. _______ possible to produce one-third more of the crop in the same fields. 4. _______ (use)his hybrid rice, farmers are producing harvests twice as large as before.

　　Finding ways to grow more rice has been his life goal since he graduated from college in 1953. At that time, hunger was 5. _______ disturbing problem in many parts of the countryside. Therefore he wanted to help his motherland rid of hunger

　　6. _______ increasing the rice output without 7. _______ (expand)the area of the fields, and he finally made it.

　　8. _______ a great scientist, he leads a very simple life. He believes that a person with too much money has more rather than 9. _______ (few)troubles. He has another dream 10. _______ his rice can be grown around the globe and no hunger is in the world.

　　答案: 1. has struggled

　　2. what

　　3. it

　　4. Using

　　5. a

　　6. by

　　7. expanding

　　8. As

　　9. fewer

　　10. that

　　Ⅳ. 话题写作

　　根据提示, 利用本单元所学知识, 完成下面的小作文。

　　1. 中国的农民曾经过着很艰苦的生活, 并一直受着饥饿的困扰。(lead a. . . life; be disturbed by)

　　2. 几十年来, 他们努力寻找能够提高粮食产量的方法, 但收效甚微。(decade; struggle; grain output)

　　3. 多亏了袁隆平的杂交水稻研究, 农民们的收成比以前多了一倍。这意味着世界22%的人口摆脱了饥饿。(thanks to; hybrid; twice as. . . as. . . ; get rid of)

　　4. 大多数农民都很满意现在的生活, 宁愿待在农村当农民。(be satisfied with; would rather)Farmers in China used to lead a hard life and were always disturbed by hunger.

　　For decades, they struggled to search for ways to increase the grain output, but without success.

　　Thanks to Yuan Longping’s research on the hybrid rice, farmers are producing harvests twice as large as before, which means22% of the world’s population have got rid of hunger. Most of the farmers say they are now quite satisfied with their lives and would rather be farmers in the countryside.