1、外研社小学三年级上语法总结情态动词 can 的用法can 是情态动词+动词原形.有三种用法：1.表示：“ 会、能 ” 例如：I can swim.我会游泳 .The question is easy ,I can answer it easily.这个问题简单,我能容易的答出来 .2.表示请求、允许， 例如： Can I help you? 有时可以与 may 互换. 例如：Can/May I sit here? 我可以坐这吗? 但 can 多用于口语,而 may 较正式.3.表推测.The book can be Lis.这本书可能是李的.表推测时与 must(一定）相比语气要弱些.例如：T
2、he book must be Wangs, her name is on it.这本书一定是王的 ,上面有她的名字.另外,还有固定搭配：cant help doing 禁不住做某事句型构成肯定句: 主语+can+动词原形+其他。否定句：主语+cant+动词原形 +其他。疑问句：Can+主语+ 动词原形 +其他？肯定回答：Yes,主语+can。否定回答：No,主语+cant. 注意：1.cant =cannot 中间无空格2.在变否定句和疑问句时主语不变，只有在回答时才用相应的人称代词代替。3.当主语是第一人称 (I, We )时，变疑问句时要把第一人称(I, We)改为第二人称 You。 4
3、.Can 没有人称和数的变化后面永远加动词原形。练习根据所给中文提示填空。1.He _ _ _ _(会浇花).2.She_ _ _ _ _(不会打扫卧室).3.My mother _ cook the meals .我妈妈会做饭。4.她姐姐会说英语。 Her sister_ speak English.5.你会唱歌吗？ _ _ sing?按要求改写句子Ms. Wang can play table tennis. （变否定句）We can make ice cream together. （ 变一般疑问句，并作肯定回答）I can play computer games. ( 对划线部分提问)
4、补全对话1.A: _ you clean the bedroom? B: _, I cant. A: What can you_? B: I _ cook the meals and empty the trash.A: _ are helpful. 2. A: _ can Amy do? B: She _ water the flowers and cook the meals. A: _ _ helpful. _ you cook the meals? B: _, I can.Have got /has got 的用法Have/Has got 句型:它表示某物归某人所有，是一种所属关系,主
5、语为人，只有“ 拥有”的意思Have/Has got 句型的转换 A、否定句：在 Have 或 Has 后加 not, 缩写为 Havent 或 Hasnt. 如： I have got three sisters. I havent got three sisters. He has got a bike. He hasnt got a bike. B、一般疑问句与回答：把 Have 或 Has 提前到句首 I have got three sisters. Have you got three sisters? Yes, I have. / No, I havent. He has got
6、 a bike. Has he got a bike? Yes, he has. /No, he hasnt.用 have got 或 has got 填空。 1. We a beautiful garden. 2. Her mother two big eyes and long hair.3. Liza a teddy bear. 4. Bruce and Jerry long arms. 5. My English teacher a big bedroom. 6. They three pencil-box. 7. The little cat two small ears. 8. M
7、y father and mother a nice house. 9. Frank a radio? No，he hasnt. 10. you a Chinese book? Yes, We have. 一般将来时 be going to构成肯定句： 主 语 + be going to + do否定句： 主 语 + be+ not+ going to +do一般疑问句： be+主语+going to+do特殊疑问句： 疑问词+be+ 主语+going to+do用法be going to + do 常用来表达自己打算做某事、计划做某事或者有意做某事。注意：be 动词要与主语的人称和数一致，如
8、：I am going to do some reading tomorrow.He is going to have a piano lesson next week.We are going to have a party this Friday.常用的时间状语：tomorrow, next day (week, month, year), soon, the day after tomorrow（后天）等be going to 和 will 的 区 别通 常 情 况 下 will 和 be going to 能 互 换 ， 但 是 be going to 与 will 用法的也是有点区别
9、的1. 只用 will 不用 be going to 的情况:表示对未来时间与年龄的推测时，如: Tomorrow will be Monday. She will be thirteen next year.表示必然发生时,如：Fish will die without water. People will die if all green plants die.2.只用 be going to 而不用 will 的情况：如果表示已有迹象表明在不久的将来要发生的事情时，如： Look at those black clouds, Its going to rain.改句子1. Sam is
10、going to make a bike.（改为否定） Sam _ going to make a bike. 2. I am going to listen to music the day after tomorrow.（改为否定） I _ listen to music the day after tomorrow. 3. He is going to get up(起床) at 6:30 tomorrow.（改为一般疑问句） _ _ _ to get up at 6:30 tomorrow? 4. Alice is going to have a birthday party next
11、 week.（改为一般疑问句） _ _ have a birthday party next week? 5. She is going to fly a kite after school(放学后). （对划线部分提问） _ _ she _ _ _ after school? 6. Is Jenny going to give you a pen next week？（肯定回答） _,_ _. 7. He is making models. (用 next day 改为一般将来时) _ 8. They are going to the zoo tomorrow. (对划线部分提问) _ 按要
12、求填空(will, be going to 同义句转换)1. 我打算明天和朋友去野炊。 I_ _ _ have a picnic with my friends. = I _ have a picnic with my friends. 2. 下个星期一你打算去干嘛? 我想去打篮球。 What _ _ _ _ _ next Monday? I _ _ _ play basketball. = What _ you do next Monday? I _ play basketball. 3. 你妈妈这个周末去购物吗？是，她要去买一些水果。 _ your mother _ _ go shopping this _? Yes, she _. She _ _ _ buy some fruit. 4. 你们打算什么时候见面。 What time _ you _ _ meet?
