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1、仁爱英语九年级Unit2Topic2SectionA导学案Unit 2 Saving the Earth Topic 2 Section A 学习目标：熟记sand, cut down, although, stop sth from doing., change into, human being, 理解sandstorm, desert, reduce, completely, 情感目标：了解沙尘暴及其危害，认识树木的重要性，提高环境保护意识。 学习重难点：1.学习短语 2.不定代词及不定副词 自主学习 (Self-study) 变名词：pollute _ 变反义词：outside_ 变同
2、义词：prevent _； though _； rubbish_ 1. 刚才_2. 不能看见任何东西 _ 3. 砍伐太多的树木_ 4. 结果 _ 5.大量富饶的土地_6.变成_ 7 .阻止大风刮走泥土_ 8. 阻止流水冲走泥土_ 9. 对有害_10.人类 _ Group-work(小组讨论): 1、What bad weather! 点拨：What引导的感叹句- a. What+形容词+不可数名词/可数名词复数！ b. What+ a/an+形容词+可数名词单数！ 练习：1）多么繁忙的一天呀！_2) 多么清澈的水呀！_ 2、As a result, a lot of rich land has
3、 changed into desert. 结果，许多肥沃的土地已经变成了沙漠。 点拨：a) change into = turn into 把.(转)变成. e. g：Please change English into Chinese. 请把英语变成汉语。 练习：我们可以把冰变成水。We can _ ice _ water. 3、Trees can stop the wind from blowing the earth away.树可以防止大风刮走泥土。 Trees can also stop the water from washing the earth away. 也可防止流水冲走
4、泥土 点拨：stop sb./sth. (from) doing sth. = prevent sb./sth. (from) doing sth. - 阻止做某事 链接：同义词组 keep sb./sth. from doing sth. - 阻止做某事 练习：大雨使我们无法外出。The heavy rain us going out. = _ = _ 4、Cutting down trees is harmful to human beings, animals and plants. 译：_ 思考：cutting down trees是_短语在句子中作_语，谓语用_数。 练习：阅读是我的
5、爱好。 my hobby. 5、 Although we have built the Great Green Wall, we still need to do something to protect the environment. 点拨：although 是 词，有“虽然，尽管”和“不过，然而”两层意思，引导 状语从句，可以和 互换，although 较正式， 更为口语化，使用更普遍些。 注意：although 引导的从句不能与but, however同时连用，但常与yet, still 连用。 练习：1._ he is old, he still working hard. 虽然他老
6、了，但是他仍然继续努力工作 2)_ I knew she was wrong at that time, I said nothing当时我觉得她错了,不过我啥也没说。 自我检测： ( )1.What weather !Lets go hiking . A. a bad B. a fine C. bad D. fine ( )2.We should humans destroying the environment. A. keep . by B. stop. to C. prevent. by D. stop. from ( )3.I have to wait for the traffic
7、 lights to green .Then I can go on walking. A. change B. changed C. change to D. changing into ( )4. -Have you seen my basketball? -Yes. I saw it in the classroom just now. A .everywhere B. nowhere C. anywhere D. somewhere ( )5.The heavy rain us from finishing the work. A .protected. B. prevented C.
8、 moved D. made ( )6. The driver was badly hurt _ of the traffic accident. A. at a result B. in the result C. with the result D .as a result ( )7. always helps others _ she is very busy. A. but B. and C. although D. because ( )8. We must plant more trees after we _ every year. A. cut off them B. cut
9、them off C. cut down them D.cut them down 作文：根据提示，以“Saving the Earth”为题，写一篇80词左右的短文。 提示: 1.如何保护环境已成为世界最大难题之一；2.各种污染破坏环境，损害健康； 3.不要乱倒垃圾，乱排废水；4.我们应该保护环境，使我们的家园更加美丽。 Saving the Earth How to protect the environment has become the biggest problem in the world. There are many kinds of pollutions around us
10、, such as air pollution, noise pollution, water pollution and light pollution. We know that rubbish not only pollutes our environment but also harms peoples health. So we shouldnt throw rubbish everywhere. If people pour waste water into the rivers and the lakes, it will make the water dirty and even kill the fish. So we mustnt do like that. We have only one earth. We must keep our environment clean and tidy. We must try our best to protect her, and make our home more and more beautiful.
