1、Unit 4 Then and now 第2课时 Grammar time 译林版知识点一 情态动词can在一般过去时中的变化【知识精讲】情态动词can的过去式为could，没有人称和数的变化，后面加动词原形。肯定句：我会写了。I could write. 否定句I couldnt write.couldnt= could not【经典例题】My little sister _three years ago.A. couldnt wrote B. couldnt write C. cant write【名师解析】根据three years ago 可知，句子为一般过去时，所以用can的过去式c
2、ould，could没有人称和数的变化，后面加动词原形，couldnt= could no，所以选B。知识点二 wrote【知识精讲】write的过去式为wrote。肯定句：He wrote letters yesterday.否定句：He didnt write letters yesterday.【经典例题】They _ (write) something on the card this morning.【名师解析】根据this morning可知，句子为一般过去时，所以write用过去式，write的过去式为wrote，所以填wrote。知识点三 bought【知识精讲】buy的过去式
3、为boughtbuy sth. for sb. =buy sb. sth. 给某人买东西buy的对应词为sell。【经典例题】I_ (buy) some flowers for my grandma yesterday afternoon.【名师解析】根据yesterday afternoon可知，句子用一般过去时，buy的过去式为bought。课时小练一、单项选择1. My mother _things on the Internet yesterday morning. A. is buying B. buys C. bought2. I_ to the supermarket on fo
4、ot last weekend.A. was go B. go C. went3.My mother often _ with her friends when she was a child. A.chatsB.chattingC.chattedD.chat4. His sister _five years ago.A. couldnt wrote B. couldnt write C. cant write5. I _ email to my e-friend last night. A. write a B. wrote a C. wrote an 6.I _ kites in the
5、sitting room _ my brother last Saturday. A.am making; andB.made; withC.make; withD.made; to二、写出下列动词的过去式。do_can_fly_take_get_see_ 三、单词拼写按要求写出单词或短语 （1）take (过去式)_ （2）read(过去式)_ （3）ate(原形)_ （4）go(过去式)_ （5）saw(原形)_ （6）do(过去式)_ （7）make friends (汉语)_ （8）看报纸(英语)._ （9）朝窗外看(英语)_ （10）couldnt(完全形式)_四、用所给词的适当形式
6、填空1. He _ a model plane yesterday. (make)5. Mike _some fish yesterday morning. (eat)6. Su Yang _a kite to the park last Saturday. (take)五、阅读理解阅读并判断正误 It was Saturday yesterday. It was sunny. I got up at 7:30. After breakfast, I went to the beach with Ann. There were many people on the beach. We ran,
7、 jumped and played volleyball on the sands. We swam in the sea. Some men fished on a boat. We had a good time. We were tired, but happy.（1）Yesterday was Saturday. （2）The weather was sunny. （3）I got up at 7:00. （4）I went to beach with Lucy. （5）We had a good time. 【参考答案】一、C C C B C B 二、did；could；flew；took；got；saw 三、（1）took（2）read（3）eat（4）went（5）see（6）did（7）交朋友（8）read newspapers（9）look out of the window.（10）could not 四、made ate took 五、（1）T（2）T（3）F（4）F（5）T
