课件23张PPT。Unit 2 Saving the Earth Topic 1Pollution is harmful to people’s health.
Section A（录音）何坝中学梅文政A: Where have you been/traveled?B: I have been/traveled to ...Kangkang and his friends are planning a picnic.
Can you guess where they will go?They will go to …They will go to a beautiful place with ...Would you like to have a picnic in such places?Do you know this place?
It’s Lop Nur (罗布泊).Do you know this place?
It’s Lop Nur (罗布泊).It used to be a beautiful place with…过去是Pollution really causes too many problems. too many + 可数名词复数
too much + 不可数名词
much too + adj./adv. We must protect our earth now.What can you see in the picture?
Can you see bees and butterflies dancing?Is the West Hill a beautiful place now?What has happened here?
The flowers and grass have gone!There are several chemical factories
pouring waste water into the stream.Is the West Hill a beautiful place now?There are several chemical factories pouring waste water into the stream. several = a fewThere be + sth./ sb. + doing sth.
There are many students reading books in the classroom.Listen to Part 1a, answer the questions.What did Kangkang say about
the West Hill in the past?Kangkang said that it was a beautiful
place with flowers and grass.What did Kangkang say about
the West Hill at present?Kangkang said that the flowers
and grass had gone.Kangkang: It’s a beautiful place with lots of flowers and grass.Kangkang: The flowers and grass have gone! （录音）直接引语变成间接引语，句子结构的变化
He said, “I have been to the Great Wall. ”
He said to us that he had been to the Great Wall.
He said, “I'll give you an examination next Monday. ”
He told us that he would give us an examination the next Monday. 陈述句
用连词that引导，that在口语中常省略。主句的谓语动词可直接用引语中的said, 也可用told来代替，注意:可以说said that, said to sb. that, told sb. that.不可直接说told that。
解题步骤:陈述句:“I don’t like computers,” Sarah said to her friends.Sarah said to her friendsthat saiddidn’tsheSarah said to her friends that she didn’t like computers.Sarah1bWork alone 2. Work aloneIt is generally believed that pollution does great harm to animals. Listen and number the pictures.643215（录音） a. air pollution
b. soil pollution
c. water pollution
d. light pollution
e. noise pollution
f. litter3aWork alone1234563b Complete the following sentences with the word and phrases in 3a.1. People use chemicals too much in their fields, so_________ causes unhealthy food.
2. People pour waste water into rivers and lakes, so__________ is almost everywhere in China.
3. __________makes people sick. It causes breathing problems and even cancer.
4. In some cities there’s too much __________ caused by many cars. The government has done something useful to stop it.
5. __________is harmful to birds.
6. ___________influences our environment.3b Complete the following sentences with the word and phrases in 3a.1. People use chemicals too much in their fields, so___________ causes unhealthy food.
2. People pour waste water into rivers and lakes, so____________ is almost everywhere in China.
3. __________makes people sick. It causes breathing problems and even cancer.
4. In some cities there’s too much ____________ caused by many cars. The government has done something useful to stop it.
5. ____________is harmful to birds.
6. ___________influences our environment. soil pollution water pollution Air pollution noise pollution Light pollution Litter根据句意及首字母完成下列各句。1. I have b_______ to the West Hill before.
2. All the flowers, grass and fish have g_______.
3. There are s________ chemical factories pouring waste water into the river.
4. We call a small narrow river a s_______.
5. Using chemicals too much in the fields may cause s________ pollution.een oneeveraltream oilWhat kind of pollution can you find around us?
What problems does the pollution cause?Please talk about the following questions.Smoking isn’t cool, it is harmful.
It is harmful to our health.Air pollution may cause breathing
problems.Talk about the following pictures with your partner.We shouldn’t litter about.
It influences the look of our city.Useful expressionsOh, my goodness!
The flowers and grass have gone!
There are several chemical factories
pouring waste water into the stream.
Light pollution is harmful to birds.Now, it’s time for me to relax!Thank you and Goodbye!
课件介绍及使用说明
本课件是为仁爱英语九年级上学期Unit2 Topic1 Pollution is harmful to people’s health. Section A编写的教学课件。由谈论学生曾经去过的旅游地点导入康康等几个小主人公选择野餐地点的生活场景，引导学生评价介绍目的地并导入新课谈论西山环境的变化。同时巩固学习现在完成时，为现在完成时第二部分的教学打好基础。通过教材二三两部分的信息输入，引导学生关注环境并用英语介绍相关现象，培养学生环保意识。
教学步骤
导入----①音乐欣赏（幻灯片1。资源从“仁爱教育网”相应位置下载。）
②和同学们讨论旅行经历，去过哪些地方，猜测康康选择的野餐地点，导入新课。（幻灯片2、3）
呈现----①看图片，和老师进行对话，关注一些环境变化现象（如：罗布泊），学习a place with …, used to be两个语法结构。（幻灯片4-6）
②呼吁大家保护地球，关注污染问题。（幻灯片7）
③通过两幅West Hill过去和现在的对比，呈现污染导致的严重后果。并讲解词汇several和句型there be + sth./ sb. doing sth.（幻灯片8-10）
巩固----①听录音，回答问题，引导学生用间接引语回答问题，教学新的语法点。（幻灯片11、12、13。点击幻灯片11上面的蝴蝶实现超级链接，链接内容为P25-1a的动画。在听力练习中可以点击动画中的title键消去字幕，增加难度。）
②处理教材1b内容，学生独立完成练习，全班一起检查答案。（幻灯片14）
③教材Part 2，听录音，学生独立完成，核对答案。（幻灯片15）
练习----①完成3a，检查答案。（幻灯片16）
②完成3b，讲解生词。（幻灯片17、18。并核对答案。）
③完成一点补充练习。（幻灯片19。巩固本课的词汇，并核对答案。）
综合探究活动----学生谈论身边的污染及造成的问题。（幻灯片20、21）
总结与结束----（幻灯片22、23）
注：（幻灯片的生词用不同颜色的字展示，教师可以自己掌握如何讲解。）
