Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section A 1. blow strongly/hard 刮大风 rain/snow heavily/hard 下大雨 2. change into = turn into 把…变成 3. Trees can stop the wind from blowing the earth away. (1) stop ... (from) doing sth. 阻止......做某事 prevent ... (from) doing sth. keep ... from doing sth. (from不能省略) protect ... from doing sth. (from不能省略) (2) blow sth. away 把…吹/刮走 blow-blew-blown wash sth. away 把…冲走，把…洗掉 拓展：blow out吹灭 put out 扑灭 4. be saved by 为被动语态结构 被动态结构：动作承受者+ be + V（过去分词）+by 动作实施者 save v. 贮存；挽救；节约 5. need v. 实意动词, need to do sth. , 否定：don’t need to do sth. 情态动词, need do sth., 否定：needn’t do sth. need n.需要，需求 6. a number of “许多，大量” a number of + 可数名词复数 + 谓语动词复数 the number of “......的数量” the number of + 可数名词复数 + 谓语动词单数 eg: There are a number of cars in the parking lot. The number of the cars is about 200. 停车场停了大量的车。车的数量大约是200。 7. in danger of 处于…的危险中 die out 灭绝 come into being 产生，开始存在，诞生 巩固：die -died -died v. 死亡 death n. dying 现在分词 Unit 2 Topic 2 Section A 随堂练习 ( 基础篇 ) 一.根据首字母提示补全单词。 1. I often see an old couple walk on the golden s _____hand by hand. 2. We lost the game, a_____ everyone played well. 3. Do you know the r_____ why she doesn’t come 4. The wind b_____ strongly outside. It’s very cold. 5. Youngsters should work for today and plan for the f_____. 二．单项选择。 1.The cleaners must keep the street _____. A.from getting dirty B.to dirty C.to get dirty D.getting dirty 2.The Green Great Wall can stop the wind_____ blowing the earth away. A.to B.from C.of D.with 3.This washing machine is very difficult to use. _____ can learn to use it in a very short time. A.Somebody B.Anyone C.Nobody D.Everyone 4.—Hi, Bob! I can’t find my story book. Have you seen it —Sorry, I haven’t. Why not ask Jim Perhaps he’s seen it _____. anywhere B.everywhere C.nowhere D.somewhere 5. —Which of the two subjects do you like, art or music —_____，they are really interesting. Neither B.Both C.None D.All ( 提升篇 ) 一、完形填空。 There are many kinds of pollution around us, 1 air pollution, soil pollution, noise pollution and light pollution. They are bad __2_ our health in many ways. Burning gas, oil and coal creates air pollution. It can cause sore eyes and __3_ problems. With the increase of pollution and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of rubbish in the land. Farmers use too many _4_ in the fields. They destroy the soil. So soil pollution has become serious. Noise pollution can make people_5_. For example, people may lose their hearing if they work in a _6 place for a long time. Too much noise can cause high blood pressure _7__. Working for a long time in strong, changeable light _8_ cause some kinds of illnesses. It makes people feel __9__ and is especially ba ... ...
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