九年级英语下册Unit13We'retryingtosavetheearth第5课时B3a_SelfCheck课件新版人教新目标版

1、Unit 13 Were trying to save the earth! Section B 3a-Self Check Phrases review 1. 充满充满 2. 扔进扔进 3. 在在起作用起作用 4. 扔掉扔掉 5. 减少减少 be full of throwinto play a part in throw away cut down 6.起作用；有影响起作用；有影响 7.导致导致 8.切除切除 9.不但不但而且而且 10.对对有害有害 make a difference lead to cut off not onlybut also be harmful to 11.在在

2、顶部或顶端顶部或顶端 12.科学研究科学研究 13.参加参加 14.帮助解决难题帮助解决难题 15.关掉关掉 at the top of scientific study take part in help out turn off 16.付费；付出代价付费；付出代价 17.加起来加起来 18.采取行动采取行动 19.好好利用好好利用 20.拆下；摧毁拆下；摧毁 pay for add up take action put sth. to good use pull . down 3a Think about the environment in your town / city and co

3、mplete the chart below. l Which parts of the town / city have a nice environment? Why are they nice? l Which parts need to be improved? Why? Good environmentWhy? Central park clean greenery fresh air nice to look at quiet and peaceful Bad environmentWhy? Rubbish disposal areas at the bottom of apart

4、ment blocks rubbish spilling out of bins bad smells unsightly unhealthy full of pests like rats, insects, cockroaches 3b Write a letter to the city mayor about the problems and your suggestions. In your letter, describe the environmental problems in your town/city. l What are the problems? l Where a

5、re they? l What or who is causing these problems? Then, give suggestions or possible ways to solve the problems. I think that We should/ could I suggest To protect the environment Topic Environmental problems 思路点拨思路点拨 noise pollution water pollution air pollution What caused these problems? cars fac

6、tories individual black smoke and poisonous gas black smoke and waste throw rubbish everywhere 句型复习句型复习 1. 这条河很脏，甚至河底都堆满了垃圾。这条河很脏，甚至河底都堆满了垃圾。 The river was _. Even the _ the river _ rubbish. 2. 为了减少空气污染，我们应该乘公共汽车或坐地为了减少空气污染，我们应该乘公共汽车或坐地 铁来代替开车。铁来代替开车。 To _ air pollution, we should take the bus or su

7、bway _. was full of instead of driving dirtybottom of cut down 3. 我们齐心协力就能带来变化，创造更加美好的我们齐心协力就能带来变化，创造更加美好的 未来。未来。 Our _can _ and _ a better future. 4. 骑自行车还有其他的优点。骑自行车还有其他的优点。 There are _of bike _. riding actionsmake a difference lead to other advantages 5. 当你离开房间的时候，你应该关灯以节约用电。当你离开房间的时候，你应该关灯以节约用电。

8、 You should _ by _ the lights when you leave a room. 6. 你经常扔掉你不再需要的东西吗？你经常扔掉你不再需要的东西吗？ Do you often _ things you _ anymore? dont need save electricity turning off throw away 写作模板：写作模板： 1.1.开篇点题，说明环境污染问题的严峻性。开篇点题，说明环境污染问题的严峻性。 Environmental problems are With the , there are too many Cars have made Bl

9、ack smoke andby factories. Factories also And wherever 2.2.说明环境污染的原因说明环境污染的原因 3.3.给出建议和可行方案给出建议和可行方案 I think that governments should I suggest everyone in We should call on 4.4.结尾：寄予期望结尾：寄予期望 I hope the Dear Sir/ Madam, Environmental problems are becoming more and more serious all over the world. Wi

10、th the development of the society, there are too many cars on the streets in our city. Cars have made the air unhealthy for people to breathe. Black smoke and poisonous gas are given off by factories. Factories also put waste into the river. And wherever we go, we can find rubbish. Environmental pro

11、blems are becoming more and more serious all over the world. 开篇点题开篇点题 cars Factories 说明原因说明原因 范文赏读范文赏读 Now more and more people have realized these problems. I think that governments should close down the factories and develop laws to stop people from driving cars every day. I suggest everyone in th

12、is town should help to clean up the river and the streets. We should call on everyone in the town to throw rubbish in the dustbins. I hope the problem will be solved in the near future and our home will become better and better. 提出建议提出建议 寄予期望寄予期望 Self Check 1. Write different forms of the words. The

13、n add more to each group. v. n. pollute act protect inspire build create pollution action protectioninspiration buildingcreation fame wood science health south care famous wooden scientific healthy southern careful different important Others: sunny noisy harmful beautiful difference importance n. ad

14、j.adj. n. sun noise harm beauty adj. adv. slow wide sudden real quick true happy loud slowly widely suddenly really happily loudly quickly truly 2. Match each statement with the grammar structure. Statement Grammar The river used to be so clean.Present progressive We have seen many changes in the en

15、vironment. Modal verbs People should take public transportation more. Passive voice The river is polluted by factories.used to The air pollution is getting worse and worse.Present perfect Language points The air pollution is getting worse and worse. worse and worse 越来越糟越来越糟 例句：他变得越来越高了。例句：他变得越来越高了。

16、He is getting taller and taller. 结构：结构：比较级比较级+ and+比较级比较级 越来越越来越 3. Write ways to cut down on these kinds of pollution. Kinds of pollutionWays to cut down water pollution land pollution Ask factories not to throw waste into rivers. Try not to use plastic bags when shopping. Kinds of pollutionWays to

17、 cut down noise pollution air pollution Cut down the number of cars. Reduce the number of factories that burn coal. 课堂小结：写作课堂小结：写作 阐述观点和重要阐述观点和重要 性，引出下文性，引出下文 提出保护环境的提出保护环境的 具体建议具体建议 提出号召和倡议提出号召和倡议 A clean environment can But now is has become stop driving our private cars; sort the rubbish in diffe

18、rent kinds; turn off the lights take action Exercise 1. Not only my friends but also I _ interested in football and Messi is our favorite star. A. be B. am C. is D. are 2. Look! The police _ the food onto the bank of the river. A. am carrying B. is carrying C. are carrying D. are carried 3. At present, one of the best ways to study is working in groups. More chances _ to students to learn from each other. A. offer B. are offered