1、陈述句变一般疑问句的方法1. 当句子中含有be动词时，如am, is, are, was, were，将be动词提前。如：He is sleeping. Is he sleeping?They are very busy. Are they very busy ?She was very nice. Was she very nice ?They were at home yesterday. Were they at home yesterday ? I am a boy. Are you a boy ? 注意：am变are， I 变you.2. 当句子中含有have got 或has go
2、t 时，直接将Have 或has 提前。如：They have got lots of books. Have they got lots of books ? She has got a bike. Has she got a bike ?3. 当句子中含有can或will时，直接将can或will提前。如：He can speak Chinese. Can he speak Chinese ?She will go to Beijing. Will she go to Beijing ?4. 当句子中不含有以上词汇时，则根据主语、时态在句子前加助动词，如do，does，did，句子后面的动
3、词要改为原形。如：They go to school by bike. Do they go to school by bike ?She goes to school by bike. Does she go to school by bike ?He went to school by bike yesterday. Did he go to school by bike yesterday ?陈述句变否定句的方法1. 当句子中含有be动词时，如am, is, are, was, were，在be动词后加not。如：He is sleeping. He is not sleeping. (
4、 is not = isnt )They are very busy. They are not very busy. ( are not = arent )She was very nice. She was not very nice. ( was not = wasnt )They were at home yesterday. They were not at home yesterday. ( werent )I am a boy. I am not a boy.2. 当句子中含有have got 或has got 时，在have或has后加not。如：They have got l
5、ots of books. They have not got lots of books. ( have not = havent ) She has got a bike. She has not got a boke. ( has not = hasnt )3. 当句子中含有can, will, must时，直接在can, will, must后加not。如：He can speak Chinese. He can not speak Chinese. ( can not = cant )She will go to Beijing. She will not to to Beijing
6、. ( will not = wont )She must go to school. She must not go to school. ( must not = mustnt )4. 当句子中不含有以上词汇时，则根据主语、时态在主语后面加dont , doesnt, didnt，句子后面的动词要改为原形。如：They go to school by bike. They dont go to school by bike.She goes to school by bike. She doesnt go to school by bike.He went to school by bik
7、e yesterday. He didnt go to school by bike yesterday. 陈述句中如果含有some时，不管是变一般疑问句还是否定句，都要变成any。练习题：改为一般疑问句：1. They will go to Beijing for the holiday this summer. _2. It is time to go to school. _3. I usually do my homework at eight. _4. She watched a football match yesterday. _5. Id like to go swimming
8、. _6. They are playing football on the playground. _7. There are seven days in a week. _8. Jimmy likes playing computer games. _9. We go to school very early in the morning. _10. He speaks English very well. _11. I will make a present for my mother. _12. We can help you clean the windows. _13. The woman in the car is my mother. _14. Linda likes apple pies for her lunch. _15. My parents can sing English songs very well. _16. English is my favourite subject. _17. She comes from America. _18. I am interested in singing. _
