九年级英语Unit13Weretryingtosavetheearth（TheSecondPeriod—SectionA3a－4c教案（新版）人教新目标版.docx

The Second PeriodSection A(3a4c)Teaching Important Points【教学重点】Key words & phrases：cruel，harmful，industry，law，scientific，affordbe harmful to，at the top of，the food chain，take part in，turn off，pay for，take actionKey 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：bedoing；used todo；have/hasdone；bedone；shoulddoTeaching 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 1Leading in【新课导入】1Greeting2BrainstormingQuickly ask questions about how to protect the environment.Like this：What are your ideas for solving the air/waste pollution problem？3Ask students to roleplay the conversation in 2d.Step 2Cooperative inquiry【合作探究】1Finish the task in 3aTalk about the protection of endangered animals in our country.Show 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，ecosystemQuickly read the article and check their answers to these questions.Help students to learn the new items.Pay attention to the details of the passage.Get the students to find the sentences that have the information about the fact sheet.2Finish the task in 3bRead the instructions.Scan the five sentences with blanks.Read aloud the passage carefully.Fill in the blanks on their own.Check the answers.Show the complete sentences on the board.And read aloud them.Discuss the use of the conjunctions：so，although，if，but，when.Play the recording for the students to read aloud the passage.3Finish Grammar FocusRead aloud the sentences in the grammar frame until fluently.Think about the tenses，modal verbs，the structure of used to，and the passive voice.Ask students to say how to use the tenses，the structure of used to，modal verbs and the passive voice.Give some exercises.Practice with students.4Finish the task in 4a Students read the dialogue and get the main ideas of it.Get the students to fill in the blanks with proper verb forms.Ask some students to read aloud the complete conversation.All the class check the answers.Then roleplay the conversation in two halves.5Finish the task in 4b Read aloud the model verbs in 4b.Understand the meaning of them.Students read the passage quickly and get the main idea of it.Show the sentences for the students to choose：APeople can do big things to save the earth.BSaving the earth begins with small things.CPlastic bags should be forbidden in stories.Students finish the task and discuss in pairs.Check the answers with individual students.Ask them to read aloud the complete sentences.Then the class read aloud the passage.6Finish the task in 4cGive advice on how to finish the task.Get students to discuss in groups of four，each having a role.Discuss in groups.Write down their list of things.Write a report to tell the class how to protect the environment.Report to class.Try to avoid repetition.Step 3Homework1Collect words and expressions about environmental protection and tell others about it in English after class.2Write a report to tell the class how to protect the environment.3Translate 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 13Were trying to save the earth!Section A(3a4c)cruel，harmful，industry，law，scientific，afford，be harmful to，at the top of，the food chain，take part in，turn off，pay for，take actionso，although，if，but，whenbedoing；used todo；have/hasdone；bedone；shoulddoTeaching 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 gramm