Unit 2 Working the land
Ⅰ.单词拼写
1．Expanding (扩展) your knowledge by reading more books is a wise choice. 2．A bird was caught in the net，struggling (努力；挣扎) to escape. 3．He regretted (后悔)that he was careless and didn't pass the exam. 4．The method of reducing(减少)the teaching cost has been discussed at the meeting.
5．It is very modern and about 80 percent of its products export (出口)to foreign countries.
6．With all his attention focused(集中精力)on his experiment，he has no time to spend with his family.
7．Such comments(评论)seem to suggest Kahlo had a big influence on the art world of her time.
8．Great changes have taken place in the first two decades(十年) of the 21st century in China.
Ⅱ.单句改错
1．He has been struggling for the illness for many years.for→against/with 2．I'd rather go shopping than to go to the park.去掉than后的to 3．Thanks to a local worker，we rid ourselves off the trouble.off→of 4．Having retired from business，he now occupies him with the welfare of the disabled.him→himself
5．Thanks for the success of the business，we can afford a holiday this year.for→to
6．Now the young man regrets waste so much time when he was at school.waste→wasting
7．Each room in this hotel equipped with an air conditioner for the customer's convenience.equipped前加is
8．This has led scientists to thinking out other solutions to the problem.thinking→think
Ⅲ.教材与语法填空
Famous scientist as he is，Yuan Longping considers himself 1.a farmer.He grows 2.what is called super hybrid rice.As a young man，Yuan Longping saw the great need for increasing the rice output.At that time，hunger was a disturbing problem in
China.He wanted to increase rice harvests without 3.expanding (expand) the area of the fields.In 1973，a special strain of rice made 4.it possible to produce 20% more of the crop in the same fields. Thanks 5.to his research，the UN has more tools in the battle to rid the world of 6.hunger (hungry)．Using his hybrid rice，farmers are producing harvests twice as 7.large (large) as before. He is now circulating his rice knowledge in less developed countries 8.to increase (increase) their rice harvests and he wants to export his rice so that it can be grown around the globe. Though he 9.has struggled (struggle) for the past five decades，Yuan Longping is quite satisfied 10.with his life.In his spare time，he enjoys listening to violin music，playing mah-jong，swimming and reading.
Ⅳ.教材与短文改错
Over the past half century，using chemical fertilizers become very common in farming.Many farmers welcomed themselves as a great way to stop crop disease and increased production.Recently，however，scientists have been found that long-term use of these fertilizers can cause damage to the land and，even more dangerous，to people's healthy.
With these discoveries，some farmers are beginning to turn to organic farming，that is simply farming with using any chemicals.There is many different organic farming methods.All of them have the same of goal：to grow good food and avoid damage the environment or people's health.
答案：Over the past half century，using chemical fertilizers ∧ become very
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health
With these discoveries，some farmers are beginning to turn to organic farming，that is simply farming with using any chemicals.There is many different whichwithoutareorganic farming methods.All of them have the same of goal：to grow good food and avoid damage the environment or people's health.
damaging
Ⅴ.话题微写作
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。 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。
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。
4．大多数农民都很满意现在的生活，宁愿待在农村当农民。
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 means 22% 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.
