句子。我们现在学过的大多数句型，在一般情况下（就是不排除有特殊情况）都可以用简单的公式来记忆。
i.陈述句（肯定句，否定句）1．肯定句：1)主语+be动词+….
iama teacher.
heisa 主语+do动词的不同形式+….
iplaycomputer games games games yesterday.2．否定句。
陈述句改否定句方法：
在be动词（am/is/are）和情态动词(can, may, must...后面加not，其它照写。some变成any.
例如：陈述句： they are in the can play the guitar.
否定句： they are not in the can not play the guitar.
或：they aren’t in the can’t play the not=isn’t，are not=aren’t，can not=can’t，am not不能缩写练习：把下列句子变成否定句 am listening to is a student.
can clean the are in the zoo.
are some flowers in the is my are sweeping the floor.
借助动词don’t/doesn’t,第三人称单数用doesn’t,其余人称用don’t，放到人称后面，动词前面其他照写。特别记住：前面用doesn’t,后面的动词一定还原成原形。
some变成any.例如：陈述句：
i like the likes the dogs.否定句：i don’t like the doesn’t like the dogs.
肯定句变否定句：
1）i am in class four, grade five2) he is funny
只供学习与交流。
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3) they are friends4) i h**e a pen
5) he has a pencil
6) they ate breakfast yesterday
疑问句（一般疑问句，特殊疑问句）
1．一般疑问句：
1）把be动词（amisare）和情态动词(can, may, must...提前，放到句首，其它照写。遇i/we→you,my→your.
some→any.句号→问号（？）
例如：陈述句：they are in the can play the guitar..
一般疑问句：are they in the park?can he play the guitar?
2)借助助动词do/does.第三人称单数用does,其余人称用do，放到句首，其他照写。特别记住：
前面用does,后面的动词一定还原成原形。遇i/we→you,my→your. some→any.
句号→问号（？）
例如：陈述句：i like the likes the dogs.
一般疑问句：do you like the ducks?does he like the dogs?
2．exercises:
将下列肯定句变为一般疑问句：
1）i am in class four, grade five2) he is funny
3) they are friends4) i h**e a pen
5) he has a pencil
6) they ate breakfast yesterday练习：把下列句子变成一般疑问句1. i am listening to musi
is a studen
t.can clean the classroo
m.4. they are in the zo
o.5. there are some flowers in the vas
e.6. this is my siste
r.只供学习与交流。
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7. we are sweeping the floo
r.3．特殊疑问句：
1）疑问词+be动词+主语+….与第一个一般疑问句的句式比较一下)（答句的句式同肯定句句式）*what are you? (i am a teacher.
)what is he? (he is a doctor.)what are they?
(they’re students.)
2）疑问词+助动词+主语+do动词的原形或do/be+…?答句的句式同肯定句句式）
whatdo you doevery day? whendo you playcomputer games?(i play computer games everyday.)
whatdoes he doevery day? whendoes he playcomputer games?(heplayscomputer games everyday.)
whatdid you doevery day? whendid you playcomputer games?(weplayedcomputer games yesterday.
)4．exercise
对划线部分提问：
1）my shirt is green
2) they are in the super market3) i get up at 6 every morning4) he plays soccer once a week
5) they ate a big meal at school yesterday
只供学习与交流。
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句型转换练习）
系统复习（句型转换）
1. that is a chair.（变一般疑问句）2. that`s my teacher.
3. this is letter d.
4. i`m alice.（变同义句）
5. my name is ben.
6. i`m fine.
只供学习与交流。
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7. tom is here.（变一般疑问句）
8. this is bob.
9. i`m li lei.（变一般疑问句）
10. is this a book?（肯定回答）
11. this is a pencil-case.(变否定句)
12. is that her key?（做出否定回答）
13. this isa pen in english.
14. it is an english book.
15. this is my book.（复数）.
16. is that a cat.（复数）
17. is that a cat?主（变复数）
18. his baseball is under the table.（变一般疑问句）19. i go to school by bike.
20. i often go hiking on the weekend.（变一般疑问句）21. she is drawing a picture now.
22. is the cat eating fish?（肯定回答）
23. i went to guangzhou last week.
24. jimplanted trees yeeterday.
25. it was sunny yesterday.（变否定句）
26. the apples are five yuan.
27. there is a t-shirt in the box.（变复数句）
28. my mem cleans the room every day.（变否定句）
29. peter is going to fly a kite next sunday.
只供学习与交流。
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30. my bag is red.
31. this shirt is very nice.（变为否定句）
32. what`s the matter?（变同义句）
33. tom is tall,but denny is short.（改为比较句）
34. he goes to work by bike.
35. we are going to go hiking this friday.
36. i like white best.
37. we are going to shanghai
38. she is washing the clothes.
39. the pens are in the pencil-case.
40. he`s going to the great wall.（变否定句）
41. it is an elephant.
42. miss xu is a good teacher.（变一般疑问句，肯定回答）43. it`s our flag.
44. the young girl is my sister.
45. my name is alice.
46. she didn`t do homework yesterday.（变为肯定句）
47. i`m from china.
48. tom is cleaning the classroom.（变一般疑问句）
49. she often washes the clothes.（变一般疑问句）
50. these are maps.（变为单数）
51. this is a beautiful bee.
52. is there a book in the deak?（变成复数句）
只供学习与交流。
资料收集于网络，如有侵权请联系**删除。
53. there are four chairs in the dinning room.
54. can you play football?（否定回答）
55. xiao ming likes drawing.（变一般疑问句，否定回答）56. my mother works in a hospital.
57. ma na`s uncle live in beijing.
58. they walk in the street every evening.
59. i often go swimming on sundays.
60. mark doesn`t like playing the piano.
61. is your father going to see your uncle?（变肯定句）62.
the children are going to the zoo next weekend.
63. i did my homework yesterday evening.
64. miss li saw the boy this morning.（变一般疑问句）65.
lily ang lucy went ice_skating yesterday.
66. it`s seven o`clock.
67. i can see three pencils in the pencil-case
只供学习与交流。
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