1、山東省寧陽(yáng)縣第二十五中學(xué)八年級(jí)英語(yǔ)下冊(cè)Unit6 How long have you beencollecting shells Section B（1a-2C）學(xué)案（無(wú)答案） 人教新目標(biāo)版課題名稱Unit 6 Section B (1a2C)課時(shí)共5課時(shí)授課班級(jí)第3課時(shí)總課時(shí)30教學(xué)重點(diǎn)1.記住p47等單詞詞組。2.翻譯P47頁(yè)出現(xiàn)的句子。教學(xué)難點(diǎn)學(xué)會(huì)使用have/has been doing課前準(zhǔn)備準(zhǔn)備單詞的聽(tīng)寫(xiě)；準(zhǔn)備背誦學(xué) 案一、快樂(lè)預(yù)習(xí)：（一）學(xué)習(xí)方式：按要求自主完成下列內(nèi)容（二）預(yù)習(xí)內(nèi)容：1.朗讀并識(shí)記47頁(yè)的生詞及短語(yǔ) 2.翻譯47頁(yè)的句子3. 找出含have/has been d

2、oing（三）預(yù)習(xí)檢測(cè)：1. The Smiths have been watching English movies _about two hours .A. since B. for C. in D. during 2. They are singing to _ money for poor children in poor areas.A. have B. raise C. take D. collect3. _ you read the text, _ you will understand it.A. The more, better B. More, the better C.

3、The more, the better D. More, better4. The ship was full of people. There was no_ for Elen.A. room B. rooms C. a room D. any room5.Zhang Li has been working for_ eight hours.A. the whole B. the all C. whole D .all【預(yù)習(xí)質(zhì)疑】寫(xiě)出預(yù)習(xí)中發(fā)現(xiàn)的問(wèn)題_二 ：學(xué)習(xí)目標(biāo)：學(xué)會(huì)使用the past perfect tense二合作探究 （一）陽(yáng)光展示：組內(nèi)交流課前自主學(xué)習(xí)內(nèi)容（二）導(dǎo)學(xué)點(diǎn)撥 現(xiàn)在

4、完成進(jìn)行時(shí)都可以表示一段時(shí)間內(nèi)延續(xù)的動(dòng)首先，從定義上來(lái)看，現(xiàn)在完成時(shí)(have done)表示的是已經(jīng)完成的動(dòng)作或者狀態(tài)，常常與already“已經(jīng)”或ever “曾經(jīng)”連用，如： We have already learnt Unit 2. (我們已經(jīng)學(xué)習(xí)了第二單元。)She is the most beautiful girl I have ever seen. (她是我見(jiàn)過(guò)的最漂亮的女孩。)而現(xiàn)在完成進(jìn)行時(shí)則表示的是從過(guò)去某一時(shí)刻開(kāi)始一直延續(xù)到現(xiàn)在，并且還要進(jìn)行下去的動(dòng)作，具有未完成的特點(diǎn)，一般不與already或ever等連用，如：We have been learning Unit

5、2. 我們一直在學(xué)習(xí)第二單元。（沒(méi)學(xué)完）注意以下兩組句子含義上的區(qū)別：I have read the novel. 我看過(guò)那本書(shū)了. (已看完)I have been reading the novel. (一直在看，還沒(méi)有看完)Who has eaten my dinner? （表示“全吃光了”）Who has been eating my dinner? （表示“還有一些剩下”）第二，相對(duì)于現(xiàn)在完成時(shí)表示次性，現(xiàn)在完成進(jìn)行時(shí)可以表示動(dòng)作的重復(fù)，請(qǐng)看以下句子：I have met him at the library. (我在圖書(shū)館見(jiàn)過(guò)他。)I have been meeting him a

6、t the library. (我經(jīng)常在圖書(shū)館看見(jiàn)她。)第三，現(xiàn)在完成時(shí)和現(xiàn)在完成進(jìn)行時(shí)都可以表示剛剛結(jié)束的動(dòng)作，但在含義上有區(qū)別。現(xiàn)在完成時(shí)強(qiáng)調(diào)的是動(dòng)作的結(jié)果，而現(xiàn)在完成進(jìn)行時(shí)強(qiáng)調(diào)的則是動(dòng)作的過(guò)程。如：You look so tired, what have you been doing?你看起來(lái)很累，做什么了？（強(qiáng)調(diào)動(dòng)作）We are very tired. Weve been cleaning the house.我們很累，我們剛才在打掃房子。（強(qiáng)調(diào)該動(dòng)作所導(dǎo)致）Weve cleaned the house. You may come in now.我們打掃過(guò)房子了，你可以進(jìn)來(lái)了。（強(qiáng)調(diào)

7、結(jié)果“房子干凈”）（三）對(duì)應(yīng)訓(xùn)練 用適當(dāng)?shù)臅r(shí)態(tài)填空： 1. Shesl_ you _ (buy) it?” “ Yesterday.” _ (live) here ever since she was ten. 2. Both of them _ (be) in Hong Kong for ten days.3. Both of them _ (come) to Hong Kong ten days ago. 4. Half an hour _ (pass) since the train _ (leave). 5. Mary_(lose) her pen. _ you _ (see) it

8、here and there? 6. _ you _ (find) your watch yet? 7. -Are you thirsty? -No I _ just _ (have) some orange. 8. We _already _ (return) the book. 9. _ they _ (build) a new school in the village? 10. I _(not finish) my homework . Can you help me? 三：拓展提高：1.choose three important things to you 2.完成2a,2b聽(tīng)力

9、3. Pairwork Make conversations課堂小結(jié)：寫(xiě)出三句有現(xiàn)在完成進(jìn)行時(shí)的句子四 感恩達(dá)標(biāo)一、 單項(xiàng)選擇 (15分)1 .Li Chen _football an hour ago.A. has been playing B. has played C. plays D. played2 .How many times_ to Shanghai since the summer of 2002?Twice. A. did you go B. have you gone C. have you been D. will you go3 .- _ do you take a shower ? - Once a week .A. How long B. How much C. How often D. What time 4. Cartoons are very _, so I am very _ in them.A. interested, interesting B. interesting, interes