小学的英语句型转换和时态讲解与练习

否定句：be动词（am、is、are）+not、情态动词can+ not、助动词（do、does） + not如何将一个肯定的陈述句改为否定句：1、看句中有无be动词，如有，直接在be动词后+ not。

2、看句中有无情态动词，如有，直接在情态动词后+ not。

3、如上述二者都没有，就应用助动词+ not。

分四个步骤：（1）肯定陈述句中本来是没有助动词的，要加上去，位置在主语（某人或某物）后，动词前。

（2）确定助动词用do、does，根据句中动词，动词是原形的助动词就用do，动词是第三人称单数的助动词就用does，（3）在助动词后加not。

（4）原句中动词假如发生变化就要恢复成原形。

强调一点，有some的要考虑是否要用any。

1.I amTom. ______________________________2.He isnine. ______________________________3.They arepupils.______________________________4.I can fly a kite.______________________________5.He can make atoy. ______________________________ 6.You must go homenow.______________________________7.I likeJinan.8.He likesswimming.9.He has manybooks. 10.He has somebooks.11.There is a pen on thedesk.12.There are some water in theglass. ______________________________ 13.You have got some books.___________________________________14.You have somebooks.15.He has got someapples.16.He has some apples._________________________________________ 17.I like to watchTV.______ .18.Xiao Fang and I go to the libraryeverSaturday..19.Tim swims verywell.___________ .20.Mr. Smith has many books about thecars..21.I want to play with myfriends..22.We feel coldtoday._____________ .23.Bob reads Englisheveryday..24.We do our homework atschool..25.Mr. White has twohouses..一般疑问句如何将一个肯定的陈述句改为一般疑问句：1、看句中有无be动词，如有，把be动词提到句首即可。

2、看句中有无情态动词，如有，把情态动词提到句首即可。

3、如上述二者都没有，就应把助动提到句首。

分四个步骤：（1）肯定陈述句中本来是没有助动词的，要加上去，位置在主语（某人或某物）后，动词前。

（2）确定助动词用do还是does，根据句中动词，动词是原形的助动词就用do，动词是第三人称单数的助动词就用does（3）把助动词后提到句首。

（4）原句中动词假如发生变化就要恢复成原形。

强调一点，有some的要考虑是否要用any。

26.I amTom. _____________________________ _27.He isnine. ____________________________ __28.They arepupils.______________________________29.I can fly a kite.______________________________30.He can make atoy. ______________________________ 31.You must go homenow.______________________________32.I likeJinan.33.He likesswimming.34.He has manybooks. 35.He has somebooks.36.There is a pen on thedesk.37.There are some water in theglass. ______________________________ 38.You have got some books.___________________________________39.You have somebooks.40.He has got someapples.41.He has some apples._________________________________________ 42.I like to watchTV.______ .43.Xiao Fang and I go to the libraryeverSaturday..44.Tim swims verywell.___________ .45.Mr. Smith has many books about thecars..46.I want to play with myfriends..47.We feel coldtoday._____________ .48.Bob reads Englisheveryday..49.We do our homework atschool..50.Mr. White has twohouses..特殊疑问句表示疑问，有疑问词（在开头），回答有很多种可能。

常用疑问词：疑问词意思用法What time 什么时间问具体时间，如几点钟Who 谁问人Whose 谁的问主人Where 在哪里问地点What 什么问东西、事物Whatcolour什么颜色问颜色How old 多大年纪问年纪How many 多少数量（可数名词）问数量How much 多少钱；多少数量（不可数名词）问多少钱或数量（不可数）一、选择正确的单词填空 (who, where, when)1._____ is that pretty girl? She is my sister.2._____ are Jack and Tom? They are behind you.3._____ do you go to school? I go to school from Monday to Friday.4._____ has a beautiful flower? John has a beautiful flower.5._____ are they? They are my parents.6._____ is my mother? She is in the living room.7._____ are you going? We are going to thebakery(面包坊).8._____ do Jim and Wendy p lay ball? They play ball in the afternoon.9._____ does he jog? He jogs in the park.10._____ are you from? I'm from Changchun city.二．用what time, what color, what day, what填空。

1. A: ______ _______ is it? B: It is nine o’clock.2. A: ______ _______ does your mother get up?B: My mother gets up at 6:30.3. A: ______ _______ do you go to bed? B: I go tobed at 10:00.4. A: ______ _______ do Diana and Fiona havesupper?B: Diana and Fiona have supper at 18:00.5. A: ______ _______is it? B: It is purple.6. A: ______ _______ is the sky? B: The sky is blue.7. A: ______ _______ is your coat? B: My coat isblack.8. A: ______ _______ is the dog? B: The dog iswhite.9. A: ______ _______ is today? B: Today is Monday.10. A: ______ _______ is tomorrow? B: Tomorrow is Tuesday.11. A: ______ _______ was yesterday(昨天)? B: Yesterday was Sunday.12. A: ______ _______ do you like? B: I like red.13. A: ______ is this? This is a computer(电脑).14. A: ______ are you doing? B: We are playing basketball.15. A: ______ does your mother do? B: My motheris a policewoman.16. A: ______ are those? B: Those are peppers(辣椒).17. A: ______ is in the box? B: A lovely doll isin the box.18. A: ______ is on the table? B: The apple is on the table.19. A: ______ is in the classroom? The blackboard is in the classroom.20. A: ______ ______ ______? B: Mary is hungry.21. A: ______ ______ ______ ______ ______?B: My favorite color is pink.22. A: ______ ______ ______ ______? B: Nick isplaying table tennis.三、就画线部分提问1.He is my father.2.They are under the tree.3.I often watch TV after dinner.(晚饭后) (提示：饭后强调的是时间问题。