1、 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 cre
2、am. 2. 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） 。谓语动词要变为第三人称单数形式。P98 特别要注意 havehas Eg. She has a set of keys. He knows my name. Tom needs 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 = dont Eg. I dont know it. They dont have two volleyballs. Tina and Tom dont lik
3、e ice cream. 2. 当主语是第三人称单数时,在谓语动词前加 does not = doesn t, 谓语动词打回原 型 Eg. She doesnt have a set of keys. He doesnt know my name. Tom doesnt 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
4、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,谓语动词要打回原型。 三问号： 在句末加问号。 肯定回答；Yes,主语 + do/ does. 否定回答：No, 主语+dont / doesnt . (主语要用相应的人称代词主格) Eg. Do you know it?Yes, I do. / No, I dont . Do they have two volleyballs?Yes, they do. / No, they dont . Do Tina and Tom like ice cream?Yes, they do./
5、 No, they dont. Does she have a set of keys?Yes, she does. / No, shedoesnt. Does he know your name?Yes, he does. /No, he doesnt. Does Tom need a computer game?Yes, he does. /No, he doesnt. Do和和does的讲义及配套练习的讲义及配套练习 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 d
6、o they have? He knows my name. -What does he know? Exercise1 ： 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： I（know）the answer. 一般疑问句：you （know） he answer?肯定回答： ,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：,
7、He.否定回答：, He. 3.The books are on the teachers desk. 否定句： The books(be) on the teachers desk 对划线部分提问：are the books? Exercise2 1.I have been to Beijin(一般疑问句)_ _ _ to Beijin? 2.We can see some birds.(一般疑问句) _ _ see _any_ birds?(any用在疑问句中， 而some用在陈述句中) 3.He designs clothes.(一般疑问句) _ he _ clothes? 4.Ther
8、e were some flowers on the teachers desk.(一般疑问句) _ _ _ flowers on the teachers desk? 5.There were some apples on the tree.(否定句) There _ _ _any_ apples on the tree.(any 用在疑问句中，而 some 用在陈述句中) 6.I think he is very old.(否定句)7.Please colour it green.(否定句) I _ think he _ very old._ _ colour it green. 8.Yo
9、u may have some hot dogs.(一般疑问句) _ _I_ _ _any_ _hot_dog?. 10.This sign means “No smoking”.What _ this sign _? 11.My pencils are in the pencil-box.(对划线部分提问) _ _ your pencils? 12.I got up at six yesterday(对划线部分提问) _ _ _ you get up yesterday? 14.He is happy, because he is going to take a trip tomorrow.（就划线部分提问） _ _is_ _he_ _happy?
