八年级上unit8

1、一般过去时(一)一定义：表示过去某个时间发生的动作或存在的状态。二构成：一般过去时态的构成有三种形式1.主语 + was /were + 其他 2.there was /were + 其他 3.主语 + 动词的过去式 + 其他例如：He was here just now. 他刚才在这儿。There was an old picture on the wall last year. 去年墙上有一张旧画。 I did my homework yesterday. 昨天我做了家庭作业。三动词过去式的构成1.规则变化（1）一般的加-ed 如：clean -cleaned help -helped (

2、2)以辅音字母+y 结尾的词变y为i再加-ed 如：study -studied cry -cried(3)以元音字母+y 结尾的词直接加-ed 如： play -played enjoy -enjoyed(4)以重读闭音节结尾，且末尾只有一个辅音字母的词，要双写这个辅音字母，再加-ed.如：stop -stopped drop -dropped prefer -preferred2.不规则变化 go-went take-took have-had buy-bought eat-ate see-saw hang-hung meet-met win-won sleep-slept put-put

3、 come-came wake-woke read-read do-did 四常与一般过去时连用的时间状语1.yesterday及其构成的短语 Tom lost his bike yesterday afternoon. 昨天下午汤姆丢了他的自行车。2.由一段时间+ago 构成的短语 I finished my homework two hours ago. 两个小时前我就完成作业了。3.由last +时间名词构成的短语 He went to the movie last weekend. 上周末他去看电影了。4.由介词+过去时间的名词构成的短语 Our family lived in the

4、 country in1985. 1985年我们家住在农村。5.其他一些时间名词或短语 I saw her just now . 我刚才看见过她五一般过去式的句式转换1.句中带有动词的改为疑问句时，将was /were 提到主语之前，肯定回答为”Yes ,主语（代词）+was /were ” 和”Yes, there was /were ” 否定回答为”No ,主语（代词）+wasnt /werent” 和”No ,there wasnt /werent”。 改为否定句时，在was /were后加not即可。2.句中含有实义动词的，改为疑问句或否定句时，须借助情态动词或助动词did. I kn

5、ow the answer. 改为疑问：Did you know the answer ? 肯定/否定回答：Yes , I did . / No ,I didnt . 改为否定句： I didnt know the answer.1. do- have- stop- carry- give- come-2. (1) _ (be ) your mother in Beijing last week?(2)We _ (visit) the Summer Palace last summer holiday.(3)Mike_ (not have ) breakfast at home yesterd

6、ay morning. (4) -What _ you _(do) last night ? -I _(watch) TV with my parents .3. (1) They cleaned their room yesterday (改为否定句) They _ _their room yesterday. (2) We watched a dolphin show on TV.(对划线部分提问) _ _ you watch on TV. (3) Bob wrote a letter to his friend last night. (改为一般疑问句) _ Bob _ a letter to his friend last night ? (4) He doesnt often go swimming. (用last Sunday 代替 often ) He _ _ swimming last Sunday. (5) I read todays newspaper this afternoon. (对划线部分提问) _ _ you read todays newspaper.答案：一. 1. did 2. had 3. stopped 4. carried 5. gave 6. came 二. 1. Was 2. v