Unit 2 A Visit to the Zoo Part B--一般过去时讲解和练习.ppt

1、Unit 2 A Visit to the ZooPart A一般过去时练习,一般过去时,1.用来描述在过去某个时候发生的动作或存在的状态。 例： He was here yesterday. I got up at six thirty yesterday morning. My father was at work yesterday afternoon. Did you have a good time last summer? 2.它也可以用来表示在过去某段时间里经常发生的习惯性动作。 My father often went to work by bus last year.When

2、 I was a child, I often listened to music.,一般过去时谓语动词的变化： 1.be动词变成was或were 2.实意动词变成过去式： (1)一般情况下，动词词尾加 -ed ，如： work -worked play-played wanted-wanted (2)以不发音的 -e 结尾动词，动词词尾加 -d，如： live-lived move-moved taste-tasted hope-hoped (3)以辅音字母 + y结尾的动词，把-y变为-i 再加-ed， 如： study-studied copy-copied cry-cried carr

3、y-carried (4)以一个辅音字母结尾的重读闭音节动词，双写词尾 辅音字母，再加 -ed，如： stop -stopped trip-tripped,清对清,浊对浊。元音后面还是浊，/t/、/d/后面发/id/。其余后面常发浊。 1.在轻辅音p k f s 等后加ed读轻辅音/t/： asked cooked worked looked talked picked helped surfed 2. 在浊辅音b g v z m等及元音后加ed读浊辅音/d/： lived listened closed opened watered played 3. 在/t/ /d/ 之后读 /Id/ ：

4、 add - added need - needed shout - shoutedwait - waited want -wanted,目前我们学过的在句子中做谓语的动词有两类： 1.be动词 am, is was are were 2.实意动词：除了be动词以外，都是实意动词。我们平常用的那些动词，例如，eat ,look, teach, see, hear等 助动词dodid do有两个词性，一个是助动词，做助动词的时候没有词义，只是协助动词。 一个是实意动词，表示“做”的意思，比如 do homework。,否定句和疑问句,一般过去时句中谓语动词是be动词的时候，否定句在be动词(即:

5、was或were)后加not，一般疑问句把was或were调到句首。例： It was hot yesterday. It wasnt hot yesterday. Was it hot yesterday?,一般过去时句中谓语动词是实意动词的时候，变成否定句和疑问句，都要借助于助动词did, 否定句在助动词did后面加not,疑问句用did来提问 (注意：只要出现助动词，后面动词一定要还原）例： She played computer last Sunday. She didnt play computer last Sunday. Did she play computer last Su

6、nday?,1. look2. live3. stop 4. carry5. hope6. trip 7. call8. finish9. want 10.are 11.go12.have 13.do14.get e 16.say17.see18.put 19.eat20.take21.read,动词过去式转换练习,将下列动词变为过去式,1. look looked2. live lived3. stop stopped 4. carry carried5. hope hoped6. trip tripped 7. call called8. finish finished9. want wa

7、nted 10.are were11.go went12.have had 13.do did14.get got e came 16.say said17.see saw18.put put 19.eat ate20.take took21.read read,动词过去式转换练习,将下列动词变为过去式,1. It were hot last summer. 2. The children was happy. 3. She were a teacher ten years ago. 4. He werent a driver 5 years ago. 5. They was happy la

8、st night.,It was hot last summer.,The children were happy.,He wasnt a driver 5 years ago.,She was a teacher ten years ago.,They were happy last night.,was, were练习,1. Lucy didnt went to school last week. 2. Simon didnt does his homework. 3. Harry and Tim didnt has toys. 4. Did he does his homework ye

9、sterday? 5. Did she has a book ?,Lucy didnt go to shool last week.,Simon didnt do his homework.,Harry and Tim didnt have toys.,Did he do his homework yesterday?,Did she have a book?,改正句子,改写句子： 1、Lucy did her homework at home.(改否定句) Lucy _ _ her homework at home. 2、He found some meat in the fridge.(变

10、一般疑问句) _ he _ _ meat in the fridge? 3、She had a book.(变一般疑问句) _ _ she _ a book? 4、There was some orange in the cup.(变一般疑问句) _ there _ orange in the cup?,didnt do Did find any Did have Was any,选择最佳答案。 ( ) 1. Can I a message for her? A. with B. take C. read ( ) 2. Tom football yesterday afternoon. A. play B. is playing C. plays D. played ( ) 3.We in the classroom yesterday morning. A. arent B. werent C. isnt D. wasnt ( ) 4. Hes the phone . A. of B. in C. on,B,D,B,C,( ) 5. you watch TV last night. A. Do B. Did C. Does D . Can ( ) 6. The boy usually up at seven . A. get B . gets C. got D. gettin