肯定句和否定句的專項練習

1、肯定句和否定句專項練習一、 肯定句1 、 含有 be 動詞的肯定句將be 動詞 （ is、 am、 are 如果是過去時態(tài)，則is、am過去式 was, are過去式為 were） 放在主語后構(gòu)成含有 be動詞的肯定句，其中如果是Are you 構(gòu)成一般疑問句則改為I am。1、 Are you a boy? 改肯定句（） I am a boy.1 .Is she going to the post office? （ 改肯定句） She is going to thepost office.3 .Are they watching TV now? （改肯定句） They are watchi

2、ng TVnow.4 .Were you a student? （改肯定句） I was a student.2、含有動詞的肯定句一般由Do/Does/Did 引導一般疑問句改為肯定句，如果由Do 引起疑問句，則肯定句中動詞用原形，如果用Does引起疑問句，則肯定句中動詞加s 或者 es, 如用 Did 引起疑問句，則肯定句中動詞用過去式（一般動詞過去式在動詞后加ed ,不規(guī)則過去式除外）1 、 Do you go to school on foot? （改肯定句） I go to school on foot.2 、 Does she go swimming in the afternoon

3、? （改肯定句） She goesswimming in the afternoon.3 、 Does your father like playing football? （改肯定句） My father likes playing football.4 .Did you go fishing yesterday?政肯定句） I went fishing yesterday.5 .Did Tom clean his room last weekend?改肯定句） Tom cleaned his room last weekend.3.含有can、 should、 must、 would 等情

4、態(tài)動詞的肯定句將句子中can、should、 must、 would 等情態(tài)動詞放在主語后面，其中主語you 改為1.1 、 Can you fly kites? 改肯定句（） I can fly kites.2 、 Should you do your homework now? （改肯定句） I should do myhomework now.肯定句練習1、 Is it a fine day today? （改為肯定句）2、 Is he thin and short? （改為肯定句）3、 Is there a river in the park? （改為肯定句）4、 Are you dr

5、awing pictures now? （改為肯定句）5， Is he writing an E-Mail in the room? （改為肯定句）6、 Is there a cinema near here? （改為肯定句）7、 Do you have English on Tuesday? （改為肯定句）8、 Were you 12? （改為肯定句）9、 Was she a beautiful girl? （改為肯定句）10、 Do you do your homework? （改為肯定句）11、 Does she have a computer? （改為肯定句）12、 Does Amy

6、go to school by bike? （改為肯定句）13、 Did you read books yesterday? （改為肯定句）14、 Did Tom go fishing last weekend? （改為肯定句）15， Can you use a computer? （改為肯定句）16、 Can she sweep the floor? （改為肯定句）17、 Should you wait at a yellow light?（改為肯定句）18、 Must you follow the traffic rules?（改為肯定句）二、否定句1、句子中有Be動詞的在Be（is/am

7、/are）后面加not.18.1 am 150cm tall. （改否定句）2.I am not 150cm tall. She is an actress. （改否定句）3.She is not an actress. We are going to the park next wee（k. 改否定句）4.We are not going to the park next week.2、句子中有情態(tài)動詞（can、 should、 must、 would 等）在情態(tài)動詞后面加 not.1 .Mr.Li can draw pictures. （改否定句）2 .Mr.Li can not draw

8、 pictures. You should climb the tree.（改否定句）3 .You should not climb the tree.3、句子中沒有Be動詞和情態(tài)動詞的（即僅有動詞）就在動詞前，主 語后面加don t/doesn t . 如果主語為第一、第二人稱（或者句don t.1.I like apples. （改為否定句）I don t like apples.2.They do homework on the weekend.（ 改為否定句）They don t dohomework on the weekend.4.如果主語為第三人稱（體現(xiàn)在動詞加s或者es）改否定

9、句加doesn t ,并將動詞還原為原形。1 .He visits his grandparents in the morning. （改為否定句）He doesnt visit his grandparents in the morning.2 .Amy goes to school by bike.（改為否定句）Amy doesn t go to school by bike.1、如果動詞為過去式，則在動詞前，主語后加didn t.其后動詞用原 形。I washed the clothes yesterday. （改為否定句）I didn t wash the clothes yester

10、day. She went hiking. （改為否定句）She didn t go hiking.5、肯定句中some在否定句中應改為 any.I.There are some students in the classroom.（改為否定句）There are not any students in the classroom.否定句練習1、 The apples are sweet. （改為否定句）2、 The fish is fresh . （改為否定句）3、 I am going to the post office. （改為否定句）4、 I am watching TV now.

11、（改為否定句）5、 There are some apples on the tree. （改為否定句）6、 I have some apples. （改為否定句）7、 There is a desk in the classroom. （改為否定句）8、 She gets up at 8 . （改為否定句）9、 Lily goes to school by plane . （改為否定句）10、 Tom watched TV last night. （改為否定句）11、 He went swimming last weekend. （改為否定句）12、 She likes to walk home . （改為否定句）13、 Mike did housework on the weekend . （改為否定句）14、 It was sunny day. （改為否定句）15、 I can cook the meals. （改為否定句）16、 She can swim in the lake. （改為否定句）17、 We should go to the p