2019-2020年人教版高中英語必修2 Unit 4 Wildlife protection period 4 教案2.doc

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2019-2020年人教版高中英語必修2 Unit 4 Wildlife protection period 4 教案2 I. Teaching aims: 1. To read and listen about dinosaurs. 2. To speak about helping the dodo. 3. Train the students reading ability: scanning. 4. To master the following expressions: dinosaur; e into being; inspect; incident; dust; fierce; according to; II. Teaching methods: Reading; Listening ,speaking and writing III. Teaching important and difficult points: Important points : Learn the expressions in this part: take apart; prove; trial; agree with; rather than; to one’s surprise/ amazement / joy/ delight /sorrow/ excitement / disappointment; the entrance to… ; by oneself; think highly of; debate; take turns to do sth; Difficult points: Understand the listening part better. IV. Teaching procedures: Step 1 Revision Check the answers to the homework Step 2 Lead-in & Reading 1.Brainstorm: What’s your impression of the dinosaur? How much do you know about dinosaurs? Ask the students to say as many words as possible they know about dinosaur. 2. Guess: What might be the reasons for their extinction? Let students guess the reason . 3. Reading : Ask students read the text “Animal Extinction” and answer the following questions: 1). When did dinosaurs live? 2). When did dinosaurs disappear? 3). What’s the rare new species of dinosaurs discovered in Liaoning Province? 4). What might be the possible reasons for their extinction? Step 3 Deal with the language points in this part. 1. 1 dinosaur n. [C] 2. e into being 形成；產(chǎn)生 3. inspect vt. 檢查；視察 4. incident n. [C] 事件；事變 5. dust n. [U] 塵土 6. fierce adj. 兇猛的；猛烈的 7. according to 按照；根據(jù)……所說 Step 4. Listening 渡渡鳥是一種不會(huì)飛的鳥, 僅產(chǎn)于非洲的島國毛里求斯。肥大的體型總是使它步履蹣跚, 再加上一張大大的嘴巴, 使它的樣子顯得有些丑陋。幸好島上沒有它們的天敵, 因此, 它們安逸地在樹林中建窩孵卵, 繁殖后代。16世紀(jì)后期,帶著來復(fù)槍和獵犬的歐洲人來到了毛里求斯。不會(huì)飛又跑不快的渡渡鳥厄運(yùn)降臨了。歐洲人來到島上后, 渡渡鳥就成了他們主要的食物來源。從這以后, 槍打狗咬, 鳥飛蛋打, 大量的渡渡鳥被捕殺。就連幼鳥和蛋也不能幸免。開始時(shí),歐洲人每天可以捕殺到幾千只到上萬只渡渡鳥,可是由于過度的捕殺, 很快他們每天捕殺的數(shù)量越來越少, 有時(shí)每天只能打到幾只了。1681年, 最后一只渡渡鳥被殘忍的殺害了, 從此,地球上再也見不到渡渡鳥了, 除非是在博物館的標(biāo)本室和畫家的圖畫中。 1. Give students the introduction about Dodo and then let them listen and do exercise 3 on page 30. 2. Listen to the tape again and choose the correct answer to plete each sentence for exercise 4. Step 5 Speaking & Writing 1. Discussion: In pairs choose another endangered animal which you know about. Analyze why this animal is endangered Teacher help students by giving them some useful expressions ,enable students to say freely . 2. Try to write their reasons. 3. Share with other students. 4. Writing: Write a letter to WWF based on what you have discussed, asking them to help you save your endangered animals. All letters have a start and an ending. The language used depends on how well the writer knows the person to whom he / she is writing. Step 6 Homework 1. Finish writing the letter 2. Review the whole unit 3. Read the passage on workbook( page 65) and plete exercise 2 after it.