1、行为动词的过去式有规则变化和不规则变化两种,规则变化有以下几种情况:1)直接在动词原形末尾加-ed. e.g. work-worked; ask-asked;2)以e结尾的动词只加-d. e.g. arrive-arrived; like-liked.3)末尾只有一个辅音字母的重读闭音节,应先双写这个辅音字母,再加-ed. e.g. shop-shopped; 4)以辅音字母+y结尾的动词,先把y变成i,再加-ed. e.g. carry-carried; study-studied.不规则动词变过去式见同学们课本的最后一页,e.g. fly-flew; break-broke; teach-
2、taught. 这些需要象生单词一样记住.其句式变化分为两种情况:1)含有be动词的依然在be上做文章. e.g. I was born in 1980. I was not born in 1980. Were you born in 1980?2)含有行为动词的变否定句要在行为动词前加助动词didnt.,同时把动词变成原形; 变一般疑问句,在句首加助动词did,同时把动词变成原形. e.g. I bought a gift for my mum yesterday. I didnt buy a gift for my mum yesterday. Did you buy a gift fo
3、r your mum yesterday?课后练习一、请写出下列动词的过去式。want arrive enjoy shop is see are eat 二、 指出下列句中的一处错误,并改正。1. We go to school early yesterday. _ 2. She buys a dress last week. _3. Did you liked playing football ? _4.- Did you have a good trip ? - No, I did. _ 5. I enjoied Chinese very much. _ 三、翻译下列句子,每空一词。1.
4、你昨晚去哪了? Where _ you _ last night?2. 我们昨天没有在学校。 We _ at school yesterday. 3. 我两小时前在家里。 I was at home _ _ _. 4. 你上周六去了动物园吗? _ you _ to the zoo last Saturday?5. 我去年不喜欢学数学。 I _ like learning math last year. 6. 你昨天在哪儿呢? Where _ you yesterday?7. 詹妮喜欢看书。昨晚她看了一本英语书。Jenny likes reading books. She _ an Englis
5、h book last night. 8. 上周六他做什么了?他和妈妈去购物了。- What _ he _ last Saturday?- He _ shopping with his mother. 9. 雷锋经常帮助其他人。 Lei Feng often _ other people. 10. 我上周没有给你写信。 I _ _ to you last week. 按照括号中的要求改写句子。1. Lucy did her homework at home.(改否定句) Lucy _ _ her homework at home. 2. She found some meat in the f
6、ridge.(变一般疑问句) _ she _ _ meat in the fridge?3. She stayed there for a week.(对划线部分提问) _ _ _ she _ there?4. There was some orange in the cup.(变一般疑问句) _ there _ orange in the cup?5. Li Ming is at school now. (用yesterday 改写句子) Li Ming _ at school yesterday. 四、请用正确动词形式填空。1. I _ an exciting party last wee
7、kend. (have) 2. She _ at home yesterday morning. (is) 3. Tommy _ TV at his uncles last night.(watch) 4. They all _ to the mountains yesterday morning. (go) 5. My friend, Carol, _for the math test yesterday evening. (study)6 They_(be) on the farm a moment ago.7There_(be)a shop not long ago.8 Jenny_(n
8、ot go)to bed until 11:00 oclock last night.9 Danny _(read )English five minutes ago.10 I _(see)Li Lei _(go) out just now.11 He _(do)his homework every day. But he _(not do)it yesterday.12When I was young, I _(play)games with my friends.13When _you_(write)this book? I _it last year.14 Did he_(have) l
9、unch at home?五、按照括号中的要求改写句子。11. Lucy did her homework at home.(改否定句) 12. She found some meat in the fridge.(变一般疑问句) 13. She stayed there for a week.(对划线部分提问) 14. There was some orange in the cup.(变一般疑问句) 15. Li Ming is at school now. (用yesterday 改写句子) 要点攻略牢记四个四,学好过去时在这一单元学习中,我们将要学习一种新的时态,那就是一般过去时。那么
10、该如何正确运用这种时态呢?没关系,请记好我帮你总结的四个四,相信你能够了解并能熟练地运用了。四种用法 表示在过去某个时间发生的动作或情况。例如:I went to school at 7:00 yesterday morning.我昨天早晨七点去上学。 表示在过去某个时间存在的状态。She was not at home last night.她昨晚八点没在家。 表示在过去经常或反复发生的动作,常和often(经常)、always(总是)、sometimes(有时)等表示频率的时间状语连用。例如:He often had lunch at school last month.他上个月经常在学校
11、吃午饭。 表示已故的人所做的事情或情况。Ba Jin wrote a lot of novels for us.巴金写了很多部小说。四种时间状语yesterday及相关短语。yesterday morning/afternoon/evening昨天上午/下午/晚上。“last+时间状语”构成的短语。last night/month/spring/year昨晚/上个月/去年春天/去年。“一段时间+ago”组成的短语。three days ago三天以前four years ago四年以前。“介词+时间名词”组成的短语。in 1999在1999年;on the morning of December 25th在12月25号早上。四种谓语动词的表现形式be动词的过去式was、were.She was a teacher five years ago.她五年前是一名教师。行为动词的过去式,分为规则动词和不规则动词两种。规则动词
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