4a—4d教学内容概述

Section A 【知识目标】本课的13个单词以及相应的动词短语、介词短语。

①

A:What were you doing when the UFO arrived ?

B:I was standing in front of the library when the UFO arrived.

②

A:What was the boy doing when the UFO landed?

B:He was sleeping late.

【重点】过去进行时

was / were + doing sth. 【难点】过去进行时时态的熟练运用，when 和while 的用法区别

【学习过程】

Step1 自主学习

1.一个飞碟_____________2.理发店_________3.在盥洗室_________ 4.在卧室__________ 5. 在厨房里____________

6.出去_______________ 7.一个外星人__________ 8.buy(过去式)__________9.get(过去式)______

10.一次不寻常的经历______11. 起飞________12.kid(现在分词)_________

Step2 知识梳理

（一）过去进行时

1.含义：表示过去的某一时刻或某一时间内正在进行或发生的动作。

2.构成：was/were +v-ing。

3.标志：at that time, this time yesterday, all the evening, from 8:00 to 10:00yesterday, just then, at nine yesterday, when等表示明确有具体的时间状语。eg：

I was doing my homework at this time yesterday. What was Tom doing at ten yesterday. I was eating dinner when the phone rang. 4.具体的句型：

(1)肯定句：主语+was/were +v-ing eg：

They were having a meeting that time.

(2)否定句：主语+was not(wasn’t)/were not(weren’t) +v-ing

上句改写为：They were having a meeting that time._____________________

(3)一般疑问句式：Was/Were +主语+v-ing？

肯定回答：Yes，…was/were.

否定回答：No，…wasn’t/weren’t. Eg：Was she reading a book when the teacher came in? Yes, she was.

/ No, she wasn’t. (二)when与while用法

1.when是“当……时候”，相当于at that time,既可以表示某一时刻又可以表示某一段时间，所以when引导的时间状语从句动词既可以是延续性的，又可以是非延续性的。when引导的时间状语如果是一般过去时，主句一般用过去进行时。而while也意为“当……时候””，相当于during the time，表示某一段时间历里的情况，故其引导的时间状语从句中的动词必须是延续性的。eg：

While I was watching TV, my mother came back. =When my mother came back, I was watching TV. 2.while重在强调其后的动作与助于动作的对比，表示“与此同时”。eg：

She was listening to music while I was playing computer games. （三）练习

1）_____ the teacher came in, we were talking and laughing. 2)I got home______ my mother was cooking dinner. 3)They were dancing _____ we came to meet them. 4)_______the alien was visiting the museum, the boy called the police. Step3 学习

3a部分

1.读课文，写出下列短语和句型。

1)一次不寻常的经历

__________

2)大约在十点左右

3) 跟随某人做某事______

4)它是多么的奇怪！

_______

5)当它走进一家礼品店的时候我感到非常惊讶。__________________________________________ 6)太不可思议了。__________________________________ 2.再读短文，回答问题。

1）When did the UFO land ? what was the writer doing ? 2) What places did the alien go ? what did they do ? 3) Did the alien buy any souvenirs in the shop ？

4) What did the writer do while the alien was in the museum ? 【当堂达标】

（一）根据句意及首字母完成单词

1.My sister was watching TV w_______ she was having supper. 2.My mother was cooking in the k_______ when I got home yesterday. 3.My friend b_________ me a book as a birthday present last week. 4.The plane l_______ safely at last. 5.I graduated from Shandong University this year. So I have no e_______in teaching English.

(二) 用所给词的适当形式填空

1.What an ________(amaze) sight! 2.I often see Mrs. Green________(water) flowers in her garden. 3.When they came into the room, Jack and Mike ________(read) books. 4.While I________(sing) an English song, he ________(come) in. 5.What______ you_______(do) at this time yesterday? 6.We ________(listen) to the radio at 7:00 yesterday evening. (三) 单项填空

（

）1.We heard someome ______ in the next room. A. sings

B. sang

C. to sing

D. singing （

）2.There are many trees _____ the classroom. A. in front of

B. in the front of

C. in front

D. at the front （

）3.His mother wanted to know what he ______ at that time. A .is doing

B. was doing

C. has done

D. will do （

）4.--I was doing my homework at eight o’clock last night. --You are______. I saw you in the cinema. A. hard-working

B. kidding

C. kiding

D. kidded （

）5.They were playing football

it rained.

A. while

B. when

C. as

D. before （

）6.____we were eating dinner in the restaurant, the owner’s dog took my bag away quietly.