八 年級導(dǎo)學(xué)案

授課時間： 2012年 3 月 18 日

姓名 班級 審核人簽字

審核日期

課題 Unit3 What were you doing when the UFO arrived? (Section A)第一課時 課型 新授課

執(zhí)筆者 參與者

Ⅰ、Teaching Aims: 1.學(xué)習(xí)過去進行時的基本結(jié)構(gòu)及典型句型。

　　 What were you doing when the UFO arrived?

2.學(xué)會簡單描述過去發(fā)生的事情。

3.學(xué)會講簡單的故事。

Ⅱ、Teaching Difficulties:1.while與when的用法。2.學(xué)習(xí)過去進行時的基本結(jié)構(gòu)及典型句型。

Ⅲ、Teaching key points: 1.while與when的用法。2.學(xué)習(xí)過去進行時的基本結(jié)構(gòu)及典型句型。

Ⅳ、預(yù)習(xí)交流：翻譯下列單詞及詞組

1、理發(fā)店 __________________ 2、出去,離開 __________________ 3、 起飛 __________________

4、在圖書館前面 _________________ 5、 睡過頭,起得晚 ________________ 6、做晚餐 ________________

7、理發(fā) __________________ 8、在電話上交談 __________________ 9、制作牛奶奶昔 __________________

10、吃午飯 __________________ 11、浴室__________________ 12、臥室__________________

Ⅴ、知識梳理：

一、過去進行時：表示在過去某一時間內(nèi)正在進行的動作。

構(gòu)成：was / were + 現(xiàn)在分詞（其中was是am、is的過去式，were是are的過去式）

e.g. I was doing my homework then . 那時，我正在做作業(yè)。

用法：1）過去進行時表現(xiàn)過去某一時刻正在進行的動作。

e.g. She was writing a letter when I came in .我進來時，她正在寫封信。

2）過去進行時還表示過去某階段正在進行的動作。

e.g. They were waiting for you yesterday .他們昨天一直在等你。

二、過去進行時與一般過去時的區(qū)別:

過去進行時：表示正在進行的動作。

I was reading a novel last night.昨晚我在看小說。（可能還沒有看完）

一般過去時：表示一個完成的動作。

I read a novel last night .昨晚我看了一本小說。（已經(jīng)看完了）

二、以when和while引導(dǎo)的時間狀語從句

1）延續(xù)性動詞指動作可以延續(xù)一段時間，而不是瞬間結(jié)束。如：work,study,drink,eat等。

2）非延續(xù)性動詞指動作極為短暫，瞬間結(jié)束。如：start,begin,arrive,jump,go, finish,borrow,knock等。

when表示“當(dāng)……的時候”。它后面既可跟延續(xù)性動詞，又可跟非延續(xù)性動詞.

如：Mary was having dinner when I saw her .(當(dāng)我看到瑪麗的時候,她正在吃飯.)

while表示“在……的時候”、“在……期間”。while后面必須是表示動作或狀態(tài)的延續(xù)性動詞。

如：The weather was fine while we were in Beijing .(當(dāng)我們在北京的時候天氣很好.)

所以, when可指時間點，又可指時間段，從句中可用延續(xù)性動詞，也可用非延續(xù)性動詞。

while總是指一個時間段，從句中必須用延續(xù)性動詞。

Ⅵ、合作探究：

1.小組合作看圖1a ，講故事。談?wù)搱D中發(fā)生的故事。

2.小組合作完成1a 。

3.聽力提高，認(rèn)真聽錄音完成1b, 復(fù)述重點句型，理解熟記詞匯句型。

4.小結(jié)本節(jié)課學(xué)習(xí)的過去進行時基本結(jié)構(gòu)及while與when的用法。

Ⅶ、展示分享：

小組運用while與when講述過去發(fā)生的故事，鞏固過去進行時。

Ⅷ、課堂練習(xí)：一、單項選擇

（ ）1. Tom was writing a letter ___________ I called him.

A. while B. when C. because D. after

（ ）2. The plane will ___________ in a few minutes.

A. take off B. put off C. take out D. get out

（ ）3. The man followed the boy ___________ what he wanted ___________ in the room.

A. to see, to do B. to see, do C. see, to do D. see, do

（ ）4. The accident happened ___________ the morning of September 12.

A. in B. on C. at D. for

（ ）5. The driver sits ___________ the car.

A. in the front of B. in front of C. in front D. at the front

（ ）6. ___________we got home, it was 10:00.

A. While B. When C. Although D. If

（ ）7. We find ___________ interesting to see English movies.

A. it B. that C. this D. that’s

二、用所給單詞的適當(dāng)形式填空

1.Mary ofen ______up at six o'clock. But she _______(not get)up at this time yesterday.

2.When I came in, Alice _________(lie)in bed.

3.________(not be) late again. Please get to school on time.

4.The plane__________(take off) a five minutes ago.

5.While the reporter_________(take) a photo, the cat climbed the tree again .

三、用while或when 填空

1.The girl was shopping ________the alien got out.

2.______ the girl was shopping ,the alien got out.

3.I was doing my homework ________my mother came in.

4.______I was doing my homework ,my mother came in.

5.He called to see me _________I was looking for my bag.

6.________we were talking ,Dad got home.

7.________I was sitting in the barber's chair , my friend phoned me.　　　

8.The Greens were having dinner ________ I visited them.

9.What did you do ________ the UFO landed?

10._______I arrived at the airport , the plane was taking off.

Ⅸ、布置作業(yè)

練習(xí)冊閱讀理解

Ⅹ、教學(xué)反思：