人教新目标 (Go for it) 版九年级全册Unit 13 We’re trying to save the earth!Section A教案

Unit 13　We're 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，plastic

noise pollution，air pollution，water pollution，be full of，play a part in，turn…into，cut down air pollution

　Key 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.We're trying to save the earth.

　Key structure：

　should＋do；used to＋do；have/has＋done；be＋done；be＋doing

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 about pollution and environmental protection.

Teaching Aids　【教学工具】

　A tape recorder，CAI or multimedia courseware.

Teaching Steps　【教学过程】

★Step 1　Leading in　【新课导入】

1．Greeting

2．Discussion and review

Discuss with the students，like this：

T：What kinds of pollution are there these days?

S：…

T：What causes the pollution?

S：…

3．Review the words and expressions about the topic.

★Step 2　Cooperative inquiry　【合作探究】

1．Finish the task in 1a

①Show pictures or play videos about pollution and talk about the pollution.

②Read these phrases in 1a.Look at the pictures in 1a and say what they see in the pictures.Write down the words and add more words.

③Ask students to say out their words in each kind of pollution.

2．Finish the task in 1b

①Read the instructions.Get the students to read the contents in the chart and think of what they will fill in the blanks.

②Play the recording for the first time.Students listen and fill in the words.

③Play the recording a second time.Ask them to check the answers.Then ask the questions.Students answer with full sentences.

④Ask more questions to help students learn more details.Then play the recording for the students to role－pay the conversation.

3．Finish the task in 1c

①Show the key words of the conversation.Ask students to retell the contents in the chart.Like this：

What：dirty；bottom，rubbish；fish

Why：littering，putting waste

How：write to，close down；help to clean up

②Read aloud the model dialogue in 1c.Then in pairs，do the oral practice with more words.

③Ask two pairs to perform in class.

4．Finish the tasks in 2a－2b

①Use PPT or pictures to show the four kinds of pollution.Get the groups of students to have a competition to say words about the pollution one by one.

land pollution：…

air pollution：…

noise pollution：…

water pollution：…

②Get the students to write down these words in their notebooks.

③Play the recording for the first time.Students listen and circle the kinds of pollution.Check answers with the class.

④Read the sentences in 2b.Predict the contents they will fill in.Play the recording.Students listen and complete the sentences.

⑤Play the recording again.Check the answers with the whole class.

5．Finish the task in 2c

①Read the sample conversation in 2c.Then Read the listening materials and discuss in pairs what causes the two kinds of pollution.

②Students work in pairs，making dialogues.

③Ask three pairs to role－play their conversations to the class.

6．Finish the task in 2d

①Talk about the picture in 2d.Ask：What are your ideas for solving the air pollution/waste pollution problem？Present the new words in the conversation.Such as，coal，advantage，wooden，plastic，takeaway，bin，…

②Read the conversation in 2d quickly.Find out the problems about environmental pollution in the dialogue.

③Read the conversation again.Ask the students to find the ways to solve the problems of air and waste pollution.

④Read aloud the conversation by the recording.

⑤Learn the useful expressions：

What are your ideas for doing…

To cut down air pollution，we should…

So together，our actions can make a difference and…

⑥Role－play or read the conversation in pairs until fluently.

★Step 3　Homework

1．What are your ideas for solving the waste pollution problem?

2．Write the words about 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 13　We're trying to save the earth!

Section A(2a－2d)

land pollution：…

air pollution：…

noise pollution：…

water pollution：…

should＋do；used to＋do；have/has＋done；be＋done；be＋doing

What are your ideas for doing…

To cut down air pollution，we should…

So together，our actions can make a difference and…

Teaching 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；used to＋do；have/has＋done；be＋done；be＋doing”．The topic is an important content in our life and students should learn to use the words and structures to talk about and write about it.So much practice should be done in the period and in later periods.