八年级英语下册句型转换练习题：一：变一般疑问的方法：1.当句中谓语动词是Be(am,is,are,was, were,)动词的时候，把Be(am,is,are,was, were)动词提前放于句首大写.2.当句中谓语动词前有情态动词时候，把情态动词（can, could, may,must,would，shoul,will，might….）提前，放于句首大写。
3.当句中谓语动词不是Be动词和情态动词的时候，通常在句首加Do、Does或Did，后面的动词用原形。
过去时用Did; 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Does，其它都用Do。
4.完成时态，直接把have/has提前句首大写。
注意：1.通常some改为any, too改为either，already 改为yet.2. 人称变换：一变二（I’m、We’re 改为Are you；my、our改为your.），二变一（You改为I、We，your改为my、our），三不变。
二：变否定句的方法：1.当句中谓语动词是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。
2.当句中谓语动词前有情态动词时候，在情态动词（can, may, must, could,would,will,might…..）后加not, 通常缩写。
3.句中谓语动词不是Be动词和情态动词的时候，通常在动词前面加don’t、doesn’t或didn’t，动词用原形。
过去式用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. 4.完成时态时，变否定句，直接在have/has后加not, 通常缩写为haven’t/hasn’t+v过去分词。
三: 对划线部分提问的方法：一定：定特殊疑问词，即根据划线部分内容确定特殊疑问词。
二改：把剩下的句子改为一般疑问句。
专项练习：1.变一般疑问句：1.She should put the medicine on it. (改为一般疑问句)________ she _________the medicine on it?2.Bella had a sore throat yesterday afternoon. (改为一般疑问句)________Bella ________a sore throat yesterday afternoon?3.They are singing in the classroom. (改为一般疑问句)______ they ________ in the classroom?4.I was doing my homework when my father came back.(改为一般疑问句)________ ________ doing your homework when your father came back?5.The man hurt himself last Friday. (改为一般疑问句)________the man __________himself last Friday?6.I did my homework the day before yesterday. (改为一般疑问句)_______ you________ your homework the day before yesterday?7.I’ll help to clean up the city parks. (改为一般疑问句)_________ ________help to clean up the city parks?8.He needs to write down the ideas. ( 改为一般疑问句)________ he _________to write down the ideas?9.She used to be a teacher. (改为一般疑问句)_________ she __________ to be a teacher?10.He has to clean the room every day. (改为一般疑问句)________he _______to clean the room every day?11.He has done his homework . (改为一般疑问句)______he ______his homework?12.S he was watching TV at 8:00 this evening. (改为一般疑问句)______ she_______ TV at 8:00 this evening?13.M y mother was reading when I came home. (改为一般疑问句)_______your mother_______ when you came home?14.I would like some beef noodles . (改为一般疑问句)_________ you like _________ beef noodles?15.A n old man tried to move the mountains. (改为一般疑问句)_________ an old man ________to move the mountain?16.I can play the guitar, too. (改为一般疑问句)________ you play the guitar, __________?17.He put the box on the bed yesterday. (改为一般疑问句)_________ he _______the box on the bed yesterday?18.H e’s already read the book twice. (改为一般疑问句)______he _______the book twice yet?19.T he match has already begun. (改为一般疑问句)______the match begun ________?20.H e has gone to the teacher’s office. (改为一般疑问句)________ he ________to the teacher’s office?2.变否定句：1.I was doing my homework at 9:00 yesterday (改为否定句)I________ _________my homework at 9:00 yesterday.2.I brought something special to Tom yesterday. (改为否定句)I__________ bring _________ special to Tom yesterday.3.She was waiting for the bus at that time. (改为否定句)She_________ ________for the bus at that time.4.He does his homework at 8:00. (改为否定句)He_________ _________ his homework at 8:00.5.I’ve had this bike for three years. (改为否定句)I_______ _________this bike for three years.6.She has taken acting lessons since last year. (改为否定句)She_______ _________ acting lessons since last year.7.You should put the medicine on the cut. (改为否定句)You ________ _______the medicine on the cut.8.He used to play soccer. (改为否定句)He ______ ________ to play soccer.9.The workers set up a new library in the city last year. (改为否定句)The workers_______ ______up a new library in the city last year 10.H e has to clean his room every day. (改为否定句)He _______ _______to clean his room every day.11.I think two hours of TV is enough for you. (改为否定句)I________ _________ two hour of TV is enough for you.12.I think she will come here next week. (改为否定句)I_______ think she _______ come here next week.13.J im spent five hours in finishing drawing the picture. (改为否定句)Jim_______ _______ five hours in finishing drawing the picture.14.H e has to get up early to catch the early bus. (改为否定句)He________ _________ to get up early to catch the early bus.15.J ack thinks this football game is fair. (改为否定句)Jack_________ think this football game________ fair.16.H e came up with the idea last night. (改为否定句)He__________ __________ up with the idea last night.17.H e’s already listened to that song many times. (改为否定句)He_______ listened to that song many times________.18.I have something important to tell you. (改为否定句)I___________ have __________important to tell you.19.I have been to the Great Wall. (改为否定句)I________ ________ to the Great Wall.3.对划线部分提问：1. You should eat enough food . (对划线部分提问)_______ should I ______?2.Betty had a sore throat yesterday. (对划线部分提问)_________ was the _______with Betty ?3.She used to play ping-pong. (对划线部分提问)________did she use to____________?4.I’d like to volunteer at the old people’s home. (对划线部分提问)________ _________ you like to do?5.I usually go to school on foot. (对划线部分提问)_________ do you usually _______to school?6.He was reading books at the time of the rainstorm. (对划线部分提问)_________ was he_______ at the time of the rainstorm?7.We were listening to the teacher carefully when she came in.(对划线部分提问)_________ were you _______ when she came in?8.Qomolangma is 8848.43 meters high. (对划线部分提问)_________ _______is Qomolangma?9.The population of China is 1.4 billion. (对划线部分提问)_________ the _______of China?10.I have seen the movie twice. (对划线部分提问)_________ _______you seen twice?11.T hey have done some research on it. (对划线部分提问)_________ have they _______?12.T hey have been to Hainan to many times. (对划线部分提问)_______ have they________ to many times?13.W e have been friends since we met in middle school. (对划线部分提问)________ _________ have you been friends?4.同义句转换：1. what’s the matter with you? (改为同义句)What’s _________ ___________you.2.He was too tired to keep on walking. (改为同义句)He was_______ tired __________he couldn’t keep on walking.3.There is something wrong with the girl’s heart. (改为同义句)The girl has________ __________ his heart.4.He thought up a great idea. (改为同义句)He _______ _________ with a great idea.5.The girl could sing well when she was 10. (改为同义句)The girl could sing well ________ the ________ of 10.6.Tom looks like his father. (改为同义句)Tom_________ _________ his father.Tom is_________ _________his father.7.She didn’t go to school. I didn’t go to school, either. (改为同义句)___________she_________ I went to school.8.Linda paid 88 dollars for the window. (改为同义句)Linda __________88 dollars ________the window.9.Why don’t you buy a book for your brother. (改为同义句)________ _________ buy a book for your brother.10.You must study hard in order to get good grades. （改为同义句）You must study hard_______ _____ you can get good grades.11.Kevin finished the work successfully. (改为同义句)Kevin________ _________ finishing the work.12.Tom had a traffic accident yesterday. (改为同义句)A traffic accident__________ _______ Tom yesterday.13.The Nile is the longest river in the world. （改为同义句）The Nile is longer than__________ _________ river in the world.14.China is bigger than Japan. (改为同义句)Japan is not _______ big _______ China.15.The girl can take care of herself well. (改为同义句)The girl can ________ _________herself well.16.You must study hard in order to get good grades. （改为同义句）You must study hard_______ _____ you can get good grades.17.This is his CD. (改为同义句)The CD ________ ________ him.18.I didn’t know how I could make a cup of tea before. (改为同义句)I didn’t know_____ _______ make a cup of tea before .19.I have lived here for 8 years. (改为同义句)I have lived here________ 8 years ________.20.Her sister left a month ago. (改为同义句)Her sister ________ _________ away since a month ago.。