人教版九年级英语上册：Unit 13 We’re trying to save the earth! Section A 1a–2c(共18张PPT)

课件18张PPT。Unit 13 We’re trying to save the earth!Section A 1a–2c学习目标一、听、说、读、写以下词汇及词组：litter, bottom, fisherman, coal, public, ugly, advantage, cost, wooden, plastic, the bottom of, make a difference
二、通过学习，口、笔头掌握下列句型：
1) The river used to be so clean.
2) People are throwing litter into the river.
3) It has always been the nicest river in this town.
4) We should write to the government.
5) I think one problem is that the air is badly polluted.
三、1. 能听懂关于环境污染和环境保护的听力材料。
2. 能正确运用现在进行时态，used to结构，现在完成时态， 被动语态和情态动词谈论环境污染和环境保护。
四、通过谈论环境污染，学生能培养自己的环保意识。做到：保护环境，从我做起，从小事做起。
What are these pictures about?Pollution How many kinds of pollution do these pictures show?noise pollutionwater pollutionair pollutionloud music planes building houses mobile phonesrubbish littering ships
factories
cars factories smoking
building housesThe air isn’t clear …
There are more and more cars and factories …
We should …Group workThere are all kinds of noises in our lives.
People have more modern machines.
We should …While listeningTask 1听1b录音一遍，回答下面的问题：
What kind of pollution are Tony and Mark talking about? __________________water pollution Task 2Listen and complete the sentences.really dirtyrubbishfishlitterwastegovernmentclose downclean upE.g.
Mark: The river was dirty. Even the bottom of the river was full of rubbish.
Tony: But it used to be so clean!
Mark: Yes, but people are throwing litter into the river.
Tony: Everyone in this town should play a part in cleaning it up!Pair work根据1b的表格提示，和同伴分角色表演Tony和 Mark的对话。结合1a的内容，再任选一种污染表演对话。 Listen again and complete the sentences.The air is badly polluted because there are _______________ on the road these days.
Factories that burn coal also ____________ the air with a lot of black smoke.
There is also too much rubbish and waste. People _________________ things every day.
People are also littering in ____________ like parks. This is turning beautiful places into ugly ones.more carspolluteare throwing awaypublic placesJason thinks that the air is badly polluted.
Susan used to see the mountains clearly.
3) People are also littering in public places.
4) They think that they can do nothing to help.
5) They are talking about the noise pollution.
观察上面的黑体字内容，它们分别对应了几种时态或语态？1. _________ 2. _________
3. __________ 4. _________ 5. ___________。
你能归纳出这几种时态或语态的结构吗？
________ 2. _________ 3. __________
4. _________ 5. ___________。 观察与思考：被动语态一般过去时现在进行时一般现在时现在完成时be + doneused to dobe+ doingdo /doeshave/has + done跟读录音，注意模仿孩子们描述污染时气愤的语音与语调。模仿秀Pair workUse the information in 2a and 2b to role-play conversations between Jason and Susan.Jason: The air has become really polluted around here. I’m getting very worried.
Susan: Yes, I used to be able to see stars in the sky.
Jason: The problem is that …Group work我们该如何做来减少污染？ Homework必做：把课堂上练习的关于环境污染的对话写下来。
选做：小组分工合作，用课前准备的照片，选取一种或几种污染做成海报， 我的收获Words：(词)Listening skill:(听力技巧)Sentences: (句) 根据问题预测听力关注点。litter, bottom, fisherman, coal, public, ugly, advantage, cost, wooden, plastic, the bottom of, make a difference1) The river used to be so clean.
2) People are throwing litter into the river.
3) It has always been the nicest river in this town.
4) We should write to the government.
5) I think one problem is that the air is badly polluted.Thank you!