人教八年级上册变否定句的方法和练习题：综合训练(改为否定句)1.She went to Hainan for vacation last year. (改为否定句)She________ _________to Hainan for vacation last year.2.I brought something special to Tom yesterday. (改为否定句)I__________ bring _________ special to Tom yesterday.3.She goes to school at 7:00 on weekdays. (改为否定句)She_________ ________ to work at 7:00 on weekdays.4.He does his homework at 8:00. (改为否定句)He_________ _________ his homework at 8:00.5.We can keep in good health through exercise. (改为否定句)We________ ________keep in good health through exercise. 6.She sings more clearly than Lucy. (改为否定句)She_______ _________more clearly than Lucy.7.My father can play the drum well.(改为否定句)My father_______ _________ the drum well.8.Sunny Theater has the worst sound in town. (改为否定句)Sunny Theater ________ _______the worst sound in town.9.I can stand staying in a noisy room. (改为否定句)I ________ __________ staying in a noisy room.10.T hey are going to the West Lake. (改为否定句)They________ ________ to the West Lake.11.H e can play the violin, too. (改为否定句)He ______ play the violin,____________.12.W e are going to do more exercise to keep healthy. (改为否定句)We________ _________ to do more exercise to keep healthy. 13.P eople will cut down more trees for money in 2080. (改为否定句)People _______ _______down more trees for money in 2080.14.T he old man’s life will be better. (改为否定句)The old man’s life_________ _______better.15.E veryone should play a part in protecting wild animals. (改为否定句)Everyone________ _________ a part in protecting wild animals.16.H e needs one spoon of honey (改为否定句)He _______ _______ one spoon of honey.17.I think it will take me an hour to finish it. (改为否定句)I ________ think it _______ take me an hour to finish it.18.Y ou should cook it for at least half an hour. (改为否定句)You________ ______ it for at least half an hour.19.I’m going to have a party this evening. (改为否定句)I’m __________ _________ to have a party this evening.20.J enny has to help her parents.(改为否定句)Jenny_________ _________ to help her parents.21.I think they had a good time at the party yesterday. (改为否定句)I________ think they _______a good time at the party yesterday.22.T hey traveled to Lijiang last summer. (改为否定句)They__________ __________ to Lijiang last summer.23.I think there will be more water pollution.(改为否定句)I _________ think there ________be more water pollution.24.We need two bananas to make the milk shake. (改为否定句)We ________ ________two bananas to make the milk shake. 25.S he is going to buy some clothes for her mother tomorrow.(改为否定句)She_______ going to buy _______clothes for her mother tomorrow.26.S he visited museums last year, too. (改为否定句)She_________ visit museums last year, ___________.27.I bought something special for my father. (改为否定句)I___________ buy __________special for my father.变否定句的方法：一、句中有Be(am,is,are,was,were)动词的时候，直接在Be(am,is,are,was, were)动词后加not, 通常缩写。
Lg.1.I’m a cook. -------I’m not a cook.2.Tom is watching TV. --------Tom isn’t watching TV.3. They were students in a school 10 years ago.-----They weren’tstudents in a school 10years ago.4. She is going to study computer science. -----She isn’t going tostudy computer science.二、句中有情态动词时候，在情态动词（can, may, must, might, will, would, should…）后加not, 通常缩写。
Lg.1.I will go to Shanghai next year.----I won’t go to Shanghai next year..2.She should come back on time.----She shouldn’t come back on time.三、句中没有Be动词和情态动词的时候，在动词前面加don’t、doesn’t或didn’t，动词用原形。
过去时用didn’t; 一般现在时,当主语是第三人称单数(He, She,It, 或单个的人或物)的时候用doesn’t，其它都用don’t.Lg.1.I went to New York City last year.----I didn’t go to New York City last year.2.She often exercises. ---- She doesn’t often exercise.注意：1.通常some改为any, too改为either;例如：I have some books----I don’t have any books.I can read English books, too.—I can’t read English books, either.分类练习：一．含有be动词的句子变否定句：1.They are playing basketball with their teacher. (改为否定句)They________ ________basketball with their teacher.2.They were teachers in this school 5years ago. (改为否定句)_________ __________ teachers in this school 5 years ago.3.She is going to practice basketball every day. (改为否定句)She ________ _________ to practice basketball every day. 二．含有情态动词的句子变否定句：1.I will go to the movies with my classmates. (改为否定句)I________ __________ to the movies with my classmates.2.She can sing well. (改为否定句)She___________ __________ well.3.Everyone should study hard for their hope. (改为否定句)Everyone ________ _________hard for their hope.三．没有be动词和情态动词的句子变否定句:1.She did her homework yesterday. (改为否定句)She___________ __________ her homework yesterday.2.Lucy hurt herself in class. (改为否定句)Lucy_________ _______herself in class.3.She has to go there on foot. (改为否定句)She_________ ________ to go there on foot.。