精选资料欢迎下载陈述句变否定句陈述句 ：是用来陈述一件事情或表示一种看法，可分为确定句和否定句两种形式；一、 变否定句：1. 当谓语动词是 be 动词,am, is are 或者过去时 was, were 时，直接在这些词后面加 not 构成否定形式，即 am not, is not=isnt ,are not=aren；如t果句子里有 some，在否定句中要变成 any；and 变成 or；Eg. She is a beautiful girl. 改为否定句 - She isn t a beautiful girl.There are some students in Sun school. 改 为否定句 -There aren t any students in Sun school.2. 当句子中谓语动词是助动词will, 情态动词 can, could, should, must 等时，直接在助动词和情态动词后加not 变为否定句；留意 will not = won t, can not=can t, must not =mustn表示禁t 止；假如句子里有 some，在否定句中要变成 any；and 变成 or；Eg .My family will go to Beijing and Qingdao next Sunday . 改为否定句 -My family will not go to Beijing or Qingdao next Sunday.They can run very fast. 改为否定句 -They can trun very fast.3. Eg.谓语动词是行为动词而又没有助动词或情态动词时，必需在谓语动词前加助动词， 一般现在时加助动词 do ，第三人称单数加 does，一般过去时加 did，再和 not 构成否定结构； dont, doesnt, didnt 后都用动词原形；假如句子里有some，在否定句中要变成 any；and 变成 or；Eg Tom flies kites in the playground. 改为否定句 -Tom doesn t fly kites in the playground.We often play football after class. 改为否定句 We don t often play football after class.练习1） Mike is a student at Sun school. 改为否定句 Mike a student at Sun school.2） There are some apple juice in the fridge；（改为否定句） There apple juice in the fridge.3) I am happy and excited to hear that good news. （改为否定句）I am happyexcited to hear that good news.4) She will go swimming next week.（改为否定句）She go swimming next week.5) My parents can cook meat with potatoes . （改为否定句）My parents cook meat with potatoes.6) You must do your homework now. （改为否定句）You do your home work now.7) Jill has lunch at school every day. 改为否定句 Jill lunch at school every day.8) The children had a good time at the party. 改为否定句 The children a good time at the party.9) Rose didnt watch TVthis morning. （改为确定句 Rose this morning.10) She does exercises at home in the evening（. 改成否定句、）She exercises at home in the evening.11) He said something important at the meeting.（改为否定句）He important at the meeting.12) He reads English every morning.He English every morning.13) They can swim across the river.They swim across the river.14) I have some bread to eat.I bread to eat.15) They are playing basketball.They basketball.16) The teachers will go to a meeting tomorrow.The teachers go to a meeting tomorrow.