do-does的用法和练习题培训课件

1、do, does 的用法 do 用于当主语是第一人称 I,第二人称 you 及复数时（复数包括 we, they, these,those 及两个以上的人或者事物。 does 用于当主语是第三人称单数时（第三人称包括she, he, it, this, that 单独的事物或者人名等）。含有实义动词的句型结构变换一、肯定陈述句1.当主语是 I, you 及复数时，谓语动词用原型。Eg. I know it. （ Eg.表示例如的意思）They have two volleyballs.Tina and Tom like ice cream.2. 当主语是第三人称单数时（第三人称包括she, h

2、e, it, this, that 单独的事物或者人名等）。谓语动词要变为第三人称单数形式。特别要注意have hasEg. She has a set of keys.He knows my n ame.Tom n eeds a computer game.二、肯定陈述句变换成否定陈述句1.当主语是 I, you 及复数时，在谓语动词前加 do not don tEg. I don t know it.They don t have two volleyballs.Tina and Tom don t like ice cream.2. 当主语是第三人称单数时，在谓语动词前加 does no

3、t = does,谓语动词打回原 型Eg. She doesn t have a set of keys.He doesn t know my name.Tom doesn t need a computer game.三、肯定陈述句变换成一般疑问句采用“一加二变三问号”一加：当主语是 I, you 及复数时，在句子开头加 do;当主语是第三人称单数时（第三人称包括she, he, it, this, that 单独的事物或者人名等），在句子开头加 does;二变：变大小写;第一人称变为第二人称（I / we 变为 you, my / our 变为 your）;当主语是第三人称单数时，谓语动词

4、要打回原型。三问号：在句末加冋号。肯定回答；Yes,主语+ do/ does.否定回答：No,主语+don t / doesn t .（主语要用相应的人称代词主格） 四、肯定陈述句变换成特殊疑问句（对画线部分提问） 特殊疑问词+ 一般疑问 句？（去掉画线部分）Eg. They have two volleyballs.-What do they have?He knows my name.-What does he know?Exercisel :把下列句子变成否定句，一般疑问句并做出肯否定回答，并对划线部分提问。1.I know the answer.否定句：1（know）the answe

5、r.一般疑问句：you（know）he answer?回答：,I否定回答：,I对划线部分提问：2 He plays soccer every day.否定句：He（play）soccer every day.一般疑问句：he（play）soccer every day?肯定回答：,He否定回答：,He3.The books are on the teachersdesk.否定句：The books _ （be） on the teachers desk对划线部分提问： _are the books?Exercise21.1go to Beijin（ 一般疑问句）_ to Beiji n?2.

6、We can see some birds 一般疑问句）_ see 一 y_ birds?（an 用在疑问句中，而 some 用在陈述句中）3. He likes apples.一般疑问句）_ he_apples?4. Here are some banansaon the teachers 一般疑.问句）_flowers on the teachers desk?5. There are some apples on the tree 否定句）There_ _any_ apples on the tree.（ar 用在疑问句中，而 some 用在陈述句中）6 he is very old.（

7、否 定句）he_ very old.7. It is green.（否定句）_ gree n.Eg. Do you know it?Do they have two volleyballs?Do Ti na and Tom like ice cream?Does she have a set of keys?Does he know your n ame?Yes, I do. / No, I don t .Yes, they do. / No, they don t .Yes, they do. / No, they don t.Yes, she does. / No, shdoes nt.Yes, he does. /No, he doesn t.