Unit 2 Saving the Earth-Topic 2 All these problems are very serious.-Section A-ppt课件-(含教案)-市级公开课-仁爱科普版九年级上册(编号：70a0b).zip

415 362 Teaching aims（教学目标） Knowledge aims: 1.Master the new words and phrases 2.Practise the students abilities of listening, speaking and writing. Emotional aims: Use the proper ways to protect the environment. Work alone(自主探究自主探究) 1.多糟糕的天气啊！多糟糕的天气啊！ 2.沿街而行沿街而行 3.我什么也看不见。我什么也看不见。 4.听到这很抱歉。听到这很抱歉。 5.太多的树太多的树 6.结果结果 7.阻止某人做阻止某人做 8.对对有害的有害的 9.把把吹走、冲走吹走、冲走 10.各种各样各种各样 11.形成形成 12.消失，灭绝消失，灭绝 1.What bad weather! 2.Walk along the street 3.I couldnt see anything. 4.I m sorry to hear that. 5.too many trees 6.as a result 7.stopfrom doing 8.be harmful to 9.blow/ washaway 10.types of e into being 12.die out 4 A. Listen to the passage and circle the phrases you hear. become weaker destroy the environment disappear rapidly on the earth enough bamboo to eat 4 B. Listen again and fill in the blanks. 1. Now some kinds of animals are becoming _ _ _. 2. Some animals are_ _ _dying out completely. 3. In the past, pandas lived a quiet life and had _ _food. 4. Humans have _ _ _ the importance of protecting animals. 5. We should _ _ _to protect them.do our best in danger of plenty of come to understand fewer and fewer Answer the questions 1.Whats the weather like today ? Its bad. The wind is so strong . And the sand really hurts face. 2.What causes these sandstorms ? People have cut down too many trees. As a result, a lot of rich land has changed into desert. 3.Do we still need to do something to protect the environment ? Yes, we do. Although we have built “The Green Great Wall”, we still need to do something to protect the environment . Group work(小组学习) 1.Talk about the meaning of the dialogue 1a. 2.Find out the difficult points. 3.Finish 1b and 1c. Class work(集体学习) Kang: 多糟糕的天气 The wind is so 强 And the sand really 伤害，打疼 my face. While I walk down the street just now, 我什么也看不到 Maria: I m sorry to hear that. What 导致 these sandstorms? Jane: People have 砍倒 太多的树 . 结果 , a lot of rich land has changed into desert. Maria: Thats bad. How can that 影响 the weather? Jane: Trees can stop the wind from blow the earth away. Kang: And a lot of water can be saved by forests. Jane: They can also stop the water from wash the earth away. Kang: cut down trees 对有害 human beings, animals and plants. 尽管 we have built “The Green Gret Wall”, we still need to do something protect the environment. What bad weatherstrong hurtwas walking I couldnt see anything causes cut downtoo many treesAs a result affect blowing washing Cuttingis harmful to Although to protect as a result, change into, do something, stopfrom, blowaway 1.People have cut down such a large number of trees that the land _desert. 2.There are fewer trees left, so the wind always _ the earth _. 3.Air pollution has become a serious problem, so we must _ to reduce it. 4.we should try our best to _ people _ cutting down the trees. 5.In the future, human beings can protect the trees well. _, animals will live a happy life in the forest. has changed into blows away do something stopfrom As a result Exercise(达标训练) Written practice(写作练习) 提示：环保对每个人来说都很重要。作为学生，我们可 以做许多事情来保护环境。例如说：使用纸的两面；重 新使用塑料袋；鼓励学生收集废纸和饮料瓶；多植树； 不乱扔垃圾等等。可以分三段来写。 It is our duty to As a student, we can do the following things to protect the environment. First,.Second,.Last but not least,. In short, we should do everything Read 1a. Memorize the useful expressions and key sentences which we learn today. Finish Section A in your workbook. Preview Section B. Homework(家庭作业）家庭作业） change into desert 转换成，变成 沙漠 e.g. A lot of rich land has changed into desert because people have cut down too many trees. forests gone wash the earth away 冲走 many trees cut down sandstorms come into being n. 沙尘暴 Unit2 Topic2 SectionA Important and difficult points 1.Master the new words and phrases 2.Practise the students abilities of listening, speaking and writing. Step1:Teaching aims（教学目标）（教学目标） Knowledge aims: 1.Master the new words and phrases 2.Practise the students abilities of listening, speaking and writing. Emotional aims: Use the proper ways to protect the environment. Step2:Work alone(自主探究自主探究) (一)汉译英 1.多糟糕的天气啊！ 2.沿街而行 3.我什么也看不见。 4.听到这很抱歉。 5.太多的树 6.结果 7.阻止某人做 8.对有害的 9.把吹走、冲走 10.各种各样 11.形成 12.消失，灭绝 （二）Listening practice A.Listen to the passage and circle the phrases you hear. B. Listen again and fill in the blanks. 1. Now some kinds of animals are becoming _ _ _. 2. Some animals are_ _ _dying out completely. 3. In the past, pandas lived a quiet life and had _ _food. 4. Humans have _ _ _ the importance of protecting animals. 5. We should _ _ _to protect them. (三)look at the video. Answer the questions 1.Whats the weather like today ? Its bad. The wind is so strong . And the sand really hurts face. 2.What causes these sandstorms ? People have cut down too many trees. As a result, a lot of rich land has changed into desert. 3.Do we still need to do something to protect the environment ? Yes, we do. Although we have built “The Green Great Wall”, we still need to do something to protect the environment . Step3: Group work(小组学习小组学习) 1.Talk about the meaning of the dialogue 1a. 2.Find out the difficult points. 3.Finish 1b and 1c. Step4: Class work(集体学习集体学习) Kang: 多糟糕的天气 The wind is so 强 And the sand really 伤害，打疼 my face. While I walk down the street just now, 我什么也看不到 Maria: I m sorry to hear that. What 导致 these sandstorms? Jane: People have 砍倒 太多的树 . 结果 , a lot of rich land has changed into desert. Maria: Thats bad. How can that 影响 the weather? Jane: Trees can stop the wind from blow the earth away. Kang: And a lot of water can be saved by forests. Jane: They can also stop the water from wash the earth away. Kang: cut down trees 对有害 human beings, animals and plants. 尽管 we have built “The Green Gret Wall”, we still need to do something protect the environment. Step5: Exercise(达标训练达标训练) 1.People have cut down such a large number of trees that the land _desert. 2.There are fewer trees left, so the wind always _ the earth _. 3.Air pollution has become a serious problem, so we must _ to reduce it. 4.we should try our best to _ people _ cutting down the trees. 5.In the future, human beings can protect the trees well. _, animals will live a happy life in the forest. Step6: Written practice(写作练习写作练习) 提示：环保对每个人来说都很重要。作为学生，我们可以做许多事 情来保护环境。例如说：使用纸的两面；重新使用塑料袋；鼓励学 生收集废纸和饮料瓶；多植树；不乱扔垃圾等等。可以分三段来写。 Step7: Homework(家庭作业）家庭作业） Read 1a. Memorize the useful expressions and key sentences which we learn today. Finish Section A in your workbook. Preview Section B.