初一英语句型转换陈述句变一般疑问句和否定句.doc

初一英语句型转换陈述句变一般疑问句和否定句1 I can help you.2 Toms T-shirt is five dollars.3 I often watch TV on Sunday.一、陈述句变一般疑问句的方法： 1对于助动词、情态动词、be动词作谓语的，把be动词，can，shall，will, may等放在句首，（some改成any，my改成your等），句点改成问号。如： Hes a teacher. Is he a teacher? He can swim. Can he swim? Hed like to go there. Would he like to go there? 2、含有have的一般疑问句,have译为“有”。一般疑问句式有两种形式:1.把have/has调到句首。例如:陈述句:Tommyhasacomputer.一般疑问句:HasTommy/heacomputer?2.加助动词do/does,第三人称单数用does,其他人称用do，过去式用did。其句型为:Do/Does+主语+have.?例如上句可变为:DoesTommyhaveacomputer?3对于实意动词作谓语的，动词原型借助do，三人称单数借助does，过去式借助did，加在句首，再把谓语改为动词原形，（some改成any，my改成your等），句点改成问号。其句型为:Do/Does/did+主语+动词原形+其它如： I like him. Do you like him? He likes me. Does he like me? I liked him. Did I like him? 注意：在把肯定句改成否定句或一般疑问句的时候,要注意句中是否有already、some、something、somebody等词，如果有也必须进行改变，already要改成yet，some、something、somebody等分别改成any、anything、anybody等。另外，在改成否定句的时候注意把too改成either,both改成neither,all改成none等.在改成一般疑问句的时候，常常把第一人称I、we改成第二人称you。二、肯定句变否定句的方法1、在be动词后加not。如：isnot，arenot，amnot，wasnot，werenot；2、在can，should，wil，may等情态动词后加not。如：cannot，shouldnot，willnot, may not；3、上述都没有的，在动词前加助动词否定形式dont/doesnt/didnt,其句型为：主语+ dont/doesnt/didnt + 动词原型 + 其它4、some改成any。将下列句子分别变换为一般疑问句和否定句。1 They can swim.2 I like to read English.3 I go to school on foot.4 He likes English.5 His father goes to work by bus6 He goes to school every day.7 I want to have a model car.8 She wants a cup of coffee.9 Mrs. Li and Kitty watch television at night.10 I am going to do my homework after school.11 The boy does some housework at home.12 The children had a good time in the park.13 Jim has some story-books.14 Mr. Hunt told us something important at the meeting.15 The old man does morning exercises every morning.16 I must finish my homework before eight oclock.17 He often goes to the library on Sundays.18 They have a clas