人教新目标 (Go for it) 版九年级全册Section A精品ppt课件

The Second Period—Section A(3a－4c)

Teaching Important Points　【教学重点】

　Key words & phrases：

　cruel，harmful，industry，law，scientific，afford

be harmful to，at the top of，the food chain，take part in，turn off，pay for，take action

　Key sentences：

　1.Many have heard of shark fin soup.

　2.If their numbers drop too low，it will bring danger to all ocean life.

　3.The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.

　4.So far，no scientific studies have shown that shark fins are good for health，so why eat them?

　Key structure：

　Review of tenses：be＋doing；used to＋do；have/has＋done；be＋done；should＋do

Teaching Difficult Points　【教学难点】

　★Practice the structures to talk about pollution and environmental protection in reading.

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．Brainstorming

Quickly ask questions about how to protect the environment.Like this：

What are your ideas for solving the air/waste pollution problem？…

3．Ask students to role－play the conversation in 2d.

★Step 2　Cooperative inquiry　【合作探究】

1．Finish the task in 3a

①Talk about the protection of endangered animals in our country.

②Show pictures of sharks.

Ask questions and think about these things：

What do you know about sharks?

Do you know sharks are endangered？Why?

What might have caused a fall in the number of sharks?

Discuss with students and present the new words.shark，fin，method，be harmful to，the food chain，ecosystem

③Quickly read the article and check their answers to these questions.Help students to learn the new items.

④Pay attention to the details of the passage.Get the students to find the sentences that have the information about the fact sheet.

2．Finish the task in 3b

①Read the instructions.Scan the five sentences with blanks.

②Read aloud the passage carefully.Fill in the blanks on their own.

③Check the answers.Show the complete sentences on the board.And read aloud them.Discuss the use of the conjunctions：so，although，if，but，when.

④Play the recording for the students to read aloud the passage.

3．Finish Grammar Focus

①Read aloud the sentences in the grammar frame until fluently.Think about the tenses，modal verbs，the structure of used to，and the passive voice.

②Ask students to say how to use the tenses，the structure of used to，modal verbs and the passive voice.

③Give some exercises.Practice with students.

4．Finish the task in 4a

①Students read the dialogue and get the main ideas of it.

②Get the students to fill in the blanks with proper verb forms.

③Ask some students to read aloud the complete conversation.All the class check the answers.Then role－play the conversation in two halves.

5．Finish the task in 4b

① Read aloud the model verbs in 4b.Understand the meaning of them.

②Students read the passage quickly and get the main idea of it.Show the sentences for the students to choose：

A．People can do big things to save the earth.

B．Saving the earth begins with small things.

C．Plastic bags should be forbidden in stories.

③Students finish the task and discuss in pairs.

④Check the answers with individual students.Ask them to read aloud the complete sentences.Then the class read aloud the passage.

6．Finish the task in 4c

①Give advice on how to finish the task.Get students to discuss in groups of four，each having a role.

②Discuss in groups.Write down their list of things.

③Write a report to tell the class how to protect the environment.Report to class.Try to avoid repetition.

★Step 3　Homework

1．Collect words and expressions about environmental protection and tell others about it in English after class.

2．Write a report to tell the class how to protect the environment.

3．Translate the following sentences into English.

(1)这里以前是又脏又窄的街道。

________________________________________________________________________

(2)你们听说过鱼翅汤吗？

________________________________________________________________________

(3)这不仅很残忍而且对环境有害。

________________________________________________________________________

Board Design　板书设计

Unit 13　We're trying to save the earth!

Section A(3a－4c)

cruel，harmful，industry，law，scientific，afford，be harmful to，at the top of，the food chain，take part in，turn off，pay for，take action

so，although，if，but，when

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

Teaching Reflection　【教学反思】

　　　In this period，we should review the present progressive tense，present perfect tense，passive voice，modal verbs and the structure “used to” in reading and speaking activities.We will learn some new words and expressions about environmental protection in language learning，so it is necessary to get the students to pay enough attention to the new words and try to collect more of them.

When we deal with the grammar，we should know how the students learn them and get them to practice in different kinds of exercises.Students should practice grammar in different activities.And we'd better give them some written work after speaking and reading.