2．行为动词的否定式和疑问式：

　(1)若肯定句中只有一个行为动词,那就得在行为动词前加上did not或缩略式didn’t,并把这个行为动词由过去式改为动词原形。例如：

　a. I called Lin Tao yesterday afternoon. →I did not / didn’t call Lin Tao yesterday afternoon.

　b. I borrowed a book from Sun Yang last Sunday. → I didn’t borrow a book from Sun Yang last Sunday.

　(2) 行为动词的一般疑问句

　若在陈述句中只有行为动词的过去式,那就得在句首加上一个助动词did来帮助提问,然后把句中的行为动词由过去式改为动词原形,并在句末打上问号。回答时别忘了还用did.例如：

　a. We stayed there for 10 days last month. → Did you stay there for 10 days last month? Yes, we did. / No, we didn’t.

　b. Mary had a delicious dinner yesterday evening. → Did Mary have a delicious dinner yesterday evening? Yes, she did. / No, she didn’t

练习：

1．be 动词的过去时的句型如下：

　(1)否定句： 主语 + be动词的过去式(was, were)+ not…

　(2)疑问句： be动词的过去式(was, were)+ 主语 …？

　a.He was busy yesterday. (肯定句) 他昨天很忙。

　b.He was not busy yesterday. (否定句) 他昨天不忙。

　c.Was he busy yesterday? (疑问句) 他昨天忙吗？

　d.There weren’t any boys in the room.房间里没有男孩儿。

　e. Were there any boys in the room? 房间里有男孩儿吗？

(三)不规则动词的过去式：

a.过去式与动词原形的拼写形式相同：let → let, put → put, read → read,(注意read的过去式读[red])

b. i → a: begin → began, drink → drank, give → gave, ring → rang, sing → sang, sit → sat, swim → swam

c. i → o: drive → drove, ride → rode, write → wrote

d. ow → ew: grow → grew, know → knew, throw → threw

e. 含ough或augh的：bring → brought, buy → bought, think → thought；catch → caught, teach → taught

f. am is ---was　 are ---were 　do---did 　can---could 　come---came

不规则动词的过去式平时出现要留心,逐个熟记,注意积累。

(二) 动词过去式的读音规则

　规则动词加-ed的读音:基本规则是轻轻,浊浊,既在轻辅音后加ed读轻辅音/t/。在浊辅音及元音后加ed读浊辅音/d/ 。

　例： ask → asked /a:skt/, cook → cooked /kukt/, pass → passed /pa:st/,

　例： move → moved /mu:vd/, live → lived / livd/, listen → listened /`lisnd/, stay → stayed /steid/

　在/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后面念 /id/

　例：shout → shouted // , start → started /sta:tid/,want → wanted /wantid/, need → needed /`ni:did/

4、结尾是“辅音字母+y”的动词,先变“y”为“i”再加-ed

　study---studied carry ---carried cry --- cried worry → worried

3、末尾只有一个辅音字母的重读闭音节词,先双写这个辅音字母,再加ed

　stop---stopped plan---planned

(一)1、一般在动词原形末尾加– ed

　help → helped, look → looked, play → played, work → worked, listen → listened, wash →washed, clean → cleaned,

2、结尾是 e 的动词加 -- d

　live---lived 　hope---hoped 　use---used　 like --- liked

1.-Look, there’s a sign on the wall.　

----Yes, it means we shouldn’t make noise here.

2.　　　 ----Look at the sign, Dad. No smoking here. ----I’m sorry.

3.　　　 Oh, the mobile phone is on the books.

4.　　　 The earphones are near the camera.

5.　　　 ----David’s birthday is coming. ----When is his birthday?

----It’s on the third of June.

　　 6.　 ----What date is it today? ----It’s the sixteenth of November.

Now I 　know　 　a lot about public signs in the park. They 　means 　different things. We shouldn’t 　walk 　on the grass. We should be quiet near the bird’s 　cage　 . The sign on the 　building　 　in the park means “Danger”. We must stay away from it.

1.What’s does this sign mean?

2.What day is it today?

3. How do you do?

4. What would you like as your birthday party?

5. Where are the glasses?

6. When’s Teachers’ Day?

　(A, B, A, B, A, A)