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1、精选优质文档-倾情为你奉上专题: 把肯定句改成否定句把肯定句改成否定句分以下情况:1、 句中有be动词的,在be动词后加not;2、 句中有情态动词的(can ,should,must ,would),在情态动词后面加not;3、 句中没有be动词和情态动词的,在动词前加dont或doesnt ; 句中动词为原形的,加dont .如: I like apples. I dont like apples. 句中动词为三单式的,加doesnt,并将三单式的动词还原成原形。如:He likes apples. He doesnt like apples.时态为过去时的,要加didnt 而且动词过去式
2、要改为原形,例:I went to school yesterday .I didnt go to school yeaterday .4.肯定句中的some在否定句中应改为any 如:There are some students in the classroom. There are not any students in the classroom.将下列各句改成否定句1、 Toms brother is walking in the park._3、 The students of Class 5 are cleaning the classroom._5、 Tom and Mary
3、are friends._7、There are some books in the bookcase._9、 Im a student._11、 Your father can ride a bike._13、 They can play football after school._16、 We come from China._19、 He likes the violin._20、 Have some bread, Tom._一般疑问句一般疑问句在英语的学习中,一般疑问句的转换及回答是经常碰到的问题,现在我们就来探讨一下有关一般疑问句的问题。 一、什么是一般疑问句 用Yes或No作答的
4、疑问句叫一般疑问句。一般疑问句还有下列特点:1、以be动词、助动词或情态动词开头;例:Is your father a teacher? Does she like animals? Can Jenny speak Chinese?2、往往读升调;3、译成汉语,都可以带上“吗”,例如上面三句可分别译为:你父亲是老师吗?她喜欢动物吗?Jenny会说英语吗? 二、例何将陈述句变成一般疑问句? 要将陈述句变成一般疑问句,可以遵循下列步骤: 1.看句中有没有be动词(am、is、 are、 was、 were)、和情态动词(can、must、will、may等),如果有,将其提到句首,句末打上问号即可
5、。 例 : She is a girl. Is she a girl? Toms father can play the piano. Can Toms father play the piano? 练习:1.This is a boy2.It is a cat .3.This is your sister.4.Those are my books.5.These are apples.2.如果句中没有be动词、助动词或情态动词,则根据谓语动词的形式借助do的相应形式放在句首。具体方法是:如果谓语动词是原形或者主语是第一人称、第二人称、第三人称复数则借do;如果谓语动词是一般现在时第三人称单数
6、形式,则借does; 需要注意的是,借does后,原句的谓语动词要变回原形。 例:They go to school by bike. Do they go to school by bike? Bill gets up at 6:30 every day. Does bill get up at 6:30 every day?练习:1.I love my parents. 2.I play computer games every night.3.I have a TV.三.陈述句变一般疑问句应注意的事项 陈述句变成一般疑问句除了遵循上述规则以外,还应注意下列几点: 1.如果陈述句中有第一人
7、称,则变问句时最好要变为第二人称。例:I usually have lunch at school. Do you usually have lunch at school? My father is playing soccer. Is your father playing soccer? 2.如果陈述句中有some, 则变问句时往往要变成any 。 例: There is some water on the playground. Is there any water on the playground. 3如果句中含有实义动词have且表示“有”时,除借do外,也可将其直接提到句首。 例:I have some friends in America. Have you any friends in America?/Do you have any friends in America?综合练习:1. His father is an English teacher. 2. These cats are crying. 3. They can swim. 4. I like to read English. 专心-专注-专业