仁愛版英語九年級上冊unit 2 topic 3《what can we do at home to protect the environment》（sectiond）(文件)
【正文】 d sentences and giving suggestions. Now, let’s sum up. Could you tell me the conjunctions used to bine pound sentences? T: Wonderful! You can name so many conjunctions. I hope you will remember them and use them in writing and speaking. Next, let’s sum up expressions of giving suggestions. What do you usually use to give suggestions? after all S4: for, since, as S5: besides, what’s more, what’s worse S6: should, shouldn’t, must… S7: had better, had better not, don’t… S8: ought to… 2 Prereading (10 mins) Class activity Step 1: Present a short video about the Amazon rainforests to Learn some new words and lead to 1a 最好是播放一小段亞馬孫熱帶雨林的視 learn some new words and lead to 1a. T: What do people call the Amazon rainforests? T: Yes. Do you know why people call it like this? T: So it does. It removes carbon dioxide and makes oxygen. Do you want to live there? T: No? Why? T: What you said is right. There are many kinds of insects there. If they bite you, you may lose your life. Step2: Present another short video about the destruction of the rainforests to lead to the necessity of planting trees. T: What have you seen? T: Yes, in order to get money or farmland, people cut down the trees in the rainforests. As a result, the world Ss:地球之肺。如：蛇，蜘蛛等等。 S4: … S5: Forests remove carbon dioxide and make oxygen, like the lungs of human beings. S6: Bad weather, insects, dangerous. S7:For birds and animals. 讓學(xué)生先 讀P50 的問題，帶著問題閱讀效率更高。也要講一下，當(dāng)“while” 表示“ 當(dāng) ….. 的時候 ”連接的是時間狀語從句，不是并列句。老師也可以用漢語解釋更節(jié)約時間。 頻，圖片沒有震撼力。 Ss: No. S1:太潮濕了。 能夠利用問題來預(yù)測短文的內(nèi)容。 在 Project 中，能夠根據(jù)問卷要點整理成文。 Project 部分采用調(diào)查問卷的形式來尋找本班 “最環(huán)保的人 ”。 Unit2 Topic3 SectionD 教學(xué)設(shè)計 Ⅰ . Material analysis 本課是 第二單元第三話題的第四課時。短文介紹了森林的重要作用、森林遭到破壞的情況及義務(wù)植樹人的艱難付出。 aims: 掌握常見的并列句，并能在寫作或口語交際中運用。 Ⅲ . The key points and difficult points points: Words and phrases: dry, remove, place, cut down, so that, even though Sentences: The weather may be very hot and dry or it may be very cold and wet.
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