肯定句变否定句

1、最新 料推荐肯定句变否定句习题训练知识点总结：把肯定句改成否定句分以下情况：1、 句中有 be 动词 (am, is, are, was,were)的，在 be 动词后加 not ；2、 句中有情态动词的（ can , should, must , would等），在情态动词后面加 not ；如： i can run.i can not run.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 (即主语为第一人称 i/we 、第二人称 you,第三人称复数 they, two apples 等），加 dont。如： i like apples.i

2、dontlike apples.句中动词为三单式的 (即主语为第三人称单数 he/she/it/this book 等），加 doesnt，并将三单式的动词还原成原形：如： he likes apples. he doesntlike apples.时态为过去时的，要加didnt 而且动词过去式要改为原形：例 :i went to school yesterday . i didntgo to school yesterday . 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

3、 any students in the classroom.习题训练： 将下列肯定句变为否定句。1. he likes his pen under._ _2. we go to the meeting ._ _3. he likes the violin._ _4. my sister sings beautifully._ _5. they are doing questions and answers with the teachers._6. my father has his lunch at 11:30 every day._ _7. there is a policeman at

4、 the corner of the road._ _8. there is some wonderful news in todayspaper._ _9. they are playing on the playground._ _10. tom often tells them stories in french._ _11. after class some students play balls._ _12. he speaks english._ _1最新 料推荐13. tomsbrother is walking in the park._ _14.we come from ch

5、ina._ _15. the students of class 5 are cleaning the classroom._ _16. tom and mary are friends._ _17. there are some books in the bookcase._ _18. im a student._ _19. your father can ride a bike._ _20. they can play football after school._ _二、将下列否定句改为肯定句。1. he didntknow the news._ _2. we dontwant to help the old man._ _3. i cantremember your homework._ _4. you shouldntlaugh at others._ _5. you arentmy best friend._ _6. the little boy didntlike the little rabbits._ _7. he doesntlike swimming._ _8. mary and tom arentclassmates