七年級英語上否定句及一般疑問句知識點(diǎn)

句型轉(zhuǎn)換肯定句變否定句及一般疑問句一、肯定句變否定句1、含有be動詞的否定句規(guī)則：在be動詞后+not. （ is not可縮寫成 isnt ；are not可縮寫成 arent 但 am 與not不可縮寫）eg: （1）肯定句： I am a student. 我是一名 學(xué)生否定句： I am not a student. 我不是一名學(xué)生（2）肯定句： She is my sister. 她是我的妹妹。否定句： She isnt my sister. 她不是我的妹妹。（3）肯定句： They are my parents. 他們是我的父母否定句： They arent my parents. 他們不是我的父母活學(xué)活用將下列句子變?yōu)榉穸ň?. The keys are on the table._2. This is my sister._3. A computer game is in the school library._4. I am in China now._2、含情態(tài)動詞的否定句 規(guī)則：在情態(tài)動詞后+ not，必要時可縮寫。（比如： can not 可縮寫成cant must not 可縮寫成mustnt ）eg: （1）肯定句：I can spell “English”. 我能拼寫English”。否定句：I cant spell “English”. 我不能拼寫English”.（2）肯定句：I must find it. 我必須找到它否定句：I mustnt find it.我禁止找到它?；顚W(xué)活用將下列句子變?yōu)榉穸ň?. You can eat well for breakfast._2. I can go to school on Monday._3. She can watch TV on Saturday._3、含有實(shí)義動詞的句子的否定句構(gòu)成（1）第三人稱單數(shù)做主語。（he、she、it或表示單個人或物的第三人稱名詞）規(guī)則：要在行為動詞前加上助動詞doesnt，然后將動詞恢復(fù)原形。eg ： 肯定句：He has a soccer ball. 他有一個足球。否定句：He doesnt have a soccer ball. 他有一個足球。（2）其它人稱做主語規(guī)則：在行為動詞前加dont ，句子中的行為動詞用原形。eg: 肯定句： They like bananas.他們喜歡香蕉。否定句：They dont like bananas.他們不喜歡香蕉。 注：（1）在變否定句時，如遇some應(yīng)變any Here are some books. Here arent any books. 活學(xué)活用將下列句子變?yōu)榉穸ň?1. I have some basketballs._ 2. We like bananas._ 3. Tom has a volleyball._ 4. I know youre your name._ 5. She wants to buy a hat._二、肯定句變一般疑問句1、含有be動詞的句子變一般疑問句規(guī)則：把be動詞提至句首,第一人稱變第二人稱，句末句號變問號。（I/we變成youMy/our變成your）（1）肯定句： I am a student. 我是一名 學(xué)生一般疑問句： Are you a student? 你是一名學(xué)生嗎？（2）肯定句： She is my sister. 她是我的妹妹。一般疑問句： Is she your sister? 她是你的妹妹嗎？（3）肯定句： They are my parents. 他們是我的父母一般疑問句： Are they your parents? 他們是你的父母嗎？活學(xué)活用將下列句子變?yōu)橐话阋蓡柧?.The keys are on the table._2.This is my sister._3.A computer game is in the school library._4.I am in China now._2、含有情態(tài)動詞的句子變一般疑問句規(guī)則：把情態(tài)動詞提至句首,第一人稱變第二人稱，句末句號變問號。（I/we變成youMy/our變成your）eg: （1）肯定句： I can spell “English”. 我能拼寫English”。一般疑問句： Can you spell “English”. 你能拼寫English”嗎？（2）肯定句： I must find it. 我必須找到它一般疑問句： Must you find it? 你必須找到它嗎？活學(xué)活用將下列句子變?yōu)橐话阋蓡柧?. You can eat well for breakfast._5. I can go to school on Monday._6. She can watch TV on Saturday._3、含有行為動詞的句子變一般疑問句變法（1）第三人稱單數(shù)做主語規(guī)則：如果主語是單數(shù)第三人稱，那么變成一般疑問句時，須在句首加助動詞does，然后將動詞恢復(fù)原形；eg ： 肯定句： He has a soccer ball. 他有一個足球。一般疑問句：Does he have a soccer ball?. 他有一個足球嗎？（2）其它人稱做主語如主語是其它人稱，則須在句首加助動詞do，動詞仍是原形。eg: 肯定句： They like bananas.他們喜歡香蕉。一般疑問句：Do they like bananas?他們喜歡香蕉嗎？ 注：（1）如句中有some ，變成一般疑問句時應(yīng)變成any。（2）如果句中有第一人稱的詞，變成一般疑問句時須變成相應(yīng)的第二人稱。 比如：I變成you ，we變?yōu)閥ou, my變?yōu)閥our, our變成your。eg: I have a new book. Do you have a new book? Here are some apples. Are here any apples?（3）一般疑問句的回答有肯定回答、否定回答兩種，回答時用人稱代詞。eg: Is he a teacher？ Yes, he is Can he play baseball？ Yes ,he can No ,he cantDoes he watch TV every day？ Yes, he does. No, he doesnt. 活學(xué)活用將下列句子變?yōu)橐话阋蓡柧?1. I have some basketballs._ 2. We like bananas._ 3. Tom has a volleyball._ 4. I know youre your name._ 5. She wants to buy a hat._同義句轉(zhuǎn)換1. This is a red sweater.= This coat is sweater.這是一件紅色的毛衣。2. That is her ruler.=That ruler is hers. 那是他的尺子3. My favorite subject is English= English is my favorite subject=I like English best 我最喜歡的科目是英語 4. Whats your favorite subject( food, fruit, sport, color)?=What subject( food, fruit, sport, color) do you like best?你最喜歡什么學(xué)科？ 5. My mother buys me a dictionary.+ My mother buys a dictionary for me. 我的媽媽給我買了一本詞典 6. My last name is Green = My family name is Green. 我姓Green.7. Whats your phone number? = Whats your telephone number? 你的電話號碼是什么？8. Math is difficult.=math is not easy.數(shù)學(xué)很難。9. Its boring= Its not interestingfun. 它很無聊10. How much are the trousers?= Whats the price of the trousers? 褲子的價格是多少？11. What about=How about 12. Thanks for your help.=Thank you for helping me.感謝你的幫助13. Can I help you?= What can I do for you? 我能幫助你嗎？14. Im OK= Im fine. 我很好 15. Im Gina= My name is Gina.我是吉娜?！灸M試題】（答題時間：15分鐘）一. 把下列句子變成否定句。1、We are in Shenyang._2、They can play football. _3、He plays soccer ball well. _4、I am a new teacher. _5、Tom is at school. _6、There are some new books. _二. 把下列句子變?yōu)橐话阋蓡柧洹?、He can speak English. （并否定回答）_2、Tom is a new student.（并肯定回答）_3、She plays the piano well.（并肯定回答）_4、We are Chinese.（并否定回答）_5、They like singing.（并肯定回答）_三、同義句轉(zhuǎn)換1.IamOK.Thankyou.Im_.2.ImGrace._isGrace.3.Thisdeskisold.Thisis_desk.4.CanIhelpyou?_canIdo_you?5.Howmucharetheredsocks?_the_oftheredsocks?6.Whatsthepriceofthepants?_thepants?7.Thisismyhat._mine四、句型轉(zhuǎn)換1The girl can speak English .( 改為一般疑問句 )_ _ the girl _ _ English ?2Tom often studies in the library . ( 改為否定句 )Tom _ _ often _ _ in the library .3. John goes to school at7:00 in the morning. (改為否定句)John _ _ to school at 7:00 in the morning.4. Peter does his homework at 7:00. (改為一般疑問句)_ Peter _ his homework at 7:00?5. Lucy can play baseball well. (改為否定句)Lucy _ _ baseball well.6There are someEnglish friends in our school. (改為一般疑問句)_ the