Unit13Wex27retryingtosavetheearth!优秀教学设计

1、Unit 13Were trying to save the earth!The First Period Section A(2a 2d)Teaching Important Points【教学重点】Key words & phrases ：litter ， bottom ， fisherman ， coal， ugly， advantage， cost， wooden， plasticnoise pollution ，air pollution ，water pollution ，be full of ，play a part in ，turn into ，cut down air pol

2、lutionKey sentences：1.Even the bottom of the river was full of rubbish.2.It used to be so clean.3.Everyone in this town should play a part in cleaning it up.4.The air is badly polluted because there are more cars on the road these days.5.The air has become really polluted around here.6.Were trying t

3、o save the earth.Key structure ：should do； used to do； have/hasdone； be done； bedoing e g.Everyone should help to clean up the river.The air has become really polluted.I used to be able to see stars in the sky.The air is badly polluted.Teaching Difficult Points【教学难点】 Practice the structures to talk

4、about pollution and environmental protection.Teaching Aids【教学工具】A tape recorder， CAI or multimedia courseware.Teaching Steps Step 1【教学过程】【新课导入】1 Greeting2 Discussion and reviewDiscuss with the students ， like this ：T： What kinds of pollution are there these days?S： T： What causes the pollution?S： 3

5、Review the words and expressions about the topic. Step 2Cooperative inquiry【合作探究】1 Finish the task in 1a Show pictures or play videos about pollution and talk about the pollution. Read these phrases in 1a.Look at the pictures in 1a and say what they see in thepictures.Write down the words and add mo

6、re words. Ask students to say out their words in each kind of pollution. 2 Finish the task in 1bRead the instructions.Get the students to read the contents in the chart and think of whatthey will fill in the blanks.Play the recording for the first time.Students listen and fill in the words.Play the

7、recording a second time.Ask them to check the answers.Then ask thequestions.Students answer with full sentences.Ask more questions to help students learn more details.Then play the recording for thestudents to rolepay the conversation.3Finish the task in 1cShow the key words of the conversation.Ask

8、students to retell the contents in thechart.Like thisRead aloud the model dialogue in 1c.Then in pairs do the oral practice with more words.Ask two pairs to perform in class.4Finish the tasks in 2a2bUse PPT or pictures to show the four kinds of pollution.Get the groups of students to havea competiti

9、on to say words about the pollution one by one.land pollutionair pollutionnoise pollutionwater pollutionGet the students to write down these words in their notebooks.Play the recording for the first time.Students listen and circle the kinds of pollution.Checkanswers with the class.Read the sentences

10、 in 2b.Predict the contents they will fill in.Play the recording.Studentslisten and complete the sentences.Play the recording again.Check the answers with the whole class.5Finish the task in 2cRead the sample conversation in 2c.Then Read the listening materials and discuss in pairswhat causes the tw

11、o kinds of pollution.Students work in pairs making dialogues.Ask three pairs to role play their conversations to the class.6Finish the task in 2dTalk about the picture in 2d.AskWhat are your ideas for solving the air pollution/wastepollution problem Present the new words in the conversation.Such as

12、coal advantage wooden plastic takeaway binRead the conversation in 2d quickly.Find out the problems about environmental pollutionin the dialogue.Read the conversation again.Ask the students to find the ways to solve the problems of airand waste pollution.Read aloud the conversation by the recording.

13、Learn the useful expressionsWhat are your ideas for doingTo cut down air pollution ， we shouldSo together， our actions can make a difference and Roleplay or read the conversation in pairs until fluently. Step 3 Homework1 What are your ideas for solving the waste pollution problem?2 Write the words a

14、bout the four kinds of pollution.3 Translate the following sentences into English.(1)我们正在想办法拯救地球。_(2)对于解决空气污染问题你有什么主意？_(3)我们应该保持公共场所清洁美观。_Board Design板书设计Unit 13Were trying to save the earth!Section A(2a 2d)land pollution ： air pollution ： noise pollution ： water pollution ： should do；used to do； ha

15、ve/has done； be done； be doing What are your ideas for doingTo cut down air pollution ， we shouldSo together， our actions can make a difference andTeaching Reflection【教学反思】This is the first period of the unit.In the unit we talk about pollution and environmental protection.So it is important to get the students to learn words and phrases about the topics in this unit.We will review some structures and tenses and get the students to practice them in listening and speaking.They are “ should do