一般现在时变否定句的规则

(a) 含有am is are 的句子,变否定句时,
只需在am is are 后加not.
例1 This is a book.
否定句This is not a book .
例2 I am a teacher .
否定句I am not a teacher .
例3 These are pens .
否定句These are not pens .
(b) 含有实义动词的句子，变否定句分两步。

（1）如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。

例1 He eats an apple.
否定句 He doesn't eat an apple.
例2 Jim does his homework.
否定句 Jim doesn't do his homework.
例3 Marry goes to school.
否定句Marry doesn't go to school.
(2) 如果主语不是第三人称单数时，只需在实义动词前加don't.
例1 I teach English.
否定句 I don't teach English.
例2 They go to school.
否定句 They don't go to school.
例3 We sing a song.
否定句 We don't sing a song.
(c) 含有情态动词的句子,变否定句时, 只需在情态动词后加not.
例1 I can dance.
否定句 I can not dance.
或 I can't dance.
例2 They can speak English.
否定句They can not speak English.
或 They can't speak English.
例3 He must go home.
否定句 He must not go home.
或 He mustn't go home.
例4 He must be on the playground.
He can not be on the playground.
析：当must be用来表示推测，有“一定”的含义时，
否定式要用can not.
例5 You must say something at the mecting.
You needn’t say anything at the mecting.
析：当“must+行为动词”用来表示“必须”的含义时，
其否定式可用needn’t 或mustn't表示“不需要”，“不必”，
语气委婉，must not表示“禁止”，“千万别”
语气生硬。

例6 You may come in now.
You mustn't come in now.
析：may作为情态动词表示“可以”时，
其否定式用must not,而不用may not.
例7 He may watch TV .
He mustn't watch TV.
注意:
(1) 见到some 变否定句时,要换成any.
例1 I eat some apples.
否定句 I don't eat any apples.
例2 He has some books.
否定句 He doesn't have any books.
例3 He does his home work.
否定句 He doesn't do his home work.
(2) 见到and 变否定句时,要换成or.
例1 There is some air and water on the moon.
否定句 There isn't any air or water on the moon.
例2 He has some brothers and sisters.
否定句 He hasn't any brothers or sisters.
例3 He eats apples and oranges.
否定句He doesn’t eat apples or oranges.
(3) 见到too和also变否定句时,要换成either.
例1Tom goes to school too.
否定句Tom doesn’t go to school either.
too和also用于肯定句中时，否定句中用either 替换。

（4 见到already变否定句时,要换成yet。

例1 He has had supper already.
He hasn’t had supper yet.
随着对谓语动词的否定，某些副词也要作相应的变动。

一般现在时精炼
一将下列句子变否定句。

例1 I am a boy.
例2 You are a girl.
例3 He is a teacher.
例4 Jim is English.
例5 These are bikes.
例6 Those are maps.
例7 They are buses.
二将下列句子变否定句。

例1 I’m a boy.
例2 You’re a girl.
例3 He’s a teacher.
例4 It’s a pen.
例5 These are some bikes.
例6 Those are maps and pencils.
例7 They’re some buses and cars.
例8 She is your teacher.
三将下列句子变疑问句。

例1 I am a boy.
例2 You are a girl.
例3 He is my teacher.
例4 Jim is our English.
例5 These are some bikes.
例6 Those are my maps.
例7 They are some buses.
例8 We are Chinese.
四将下列句子变成疑问句。

例1 I’m a boy.
例2 You’re a girl.
例3 He’s my teacher.
例4 It’s a pen.
例5 These are some bikes.
例6 Those are maps and pencils.
例7 They’re some buses and cars.
例8 She is your teacher.
五将下列句子变否定句。

例1 I teach English.
例3 We sing a song.
例4 He spells it.
例5 She goes to school.
例6 He does his homework..
例7 They do their homework.
例8 I do my homework.
六将下列句子变否定句。

例1 He teaches my English.
例2 They speak English and French.
例3 We eat some apples.
例4 Jim spells it.
例5 She goes to our school.
例6 He does some homework..
例7 They do their homework.
例8 We do some homework.
七将下列句子变疑问句。

例1 I teach English.
例2 They go to school.
例3 We sing a song.
例4 He spells it.
例5 She goes to school.
例6 He does his homework..
例7 They does their homework.
例8 I do my homework.
八将下列句子变疑问句。

例1 He teaches my English.
例2 They speak English and French.
例3 We eat some apples.
例4 Jim spells it.
例5 She goes to our school.
例6 He does some homework..
例7 They do their homework.
例8 We do some homework.
九将下列句子变否定句。

例1 I can dance.
例2 They can speak English.
例3He must go home.
例4 He must be on the playground.例5 You must say something at the mecting.
例6 You may come in now.
例7 He may watch TV .
例8 We need speak English.
十将下列句子变否定句。

例1 I can dance and sing.
例2 They can speak some English.
例3You must go home.
例4 They must be on the playground.例5He must say something at the mecting.
例6 Jim may come in now.
例7 They may watch TV .
例8 We need speak English and English.
十一将下列句子变疑问句。

例1 I can dance.
例2 They can speak English.
例3He must go home.
例4 He must be on the playground.例5 You must say something at the mecting.
例6 You may come in now.
例7 He may watch TV .
例8 We need speak English.
十二将下列句子疑问定句。

例1 I can dance and sing.
例2 They can speak some English.
例3You must go home.
例4 They must be on the playground.
例5He must say something at the mecting.
例6 You may come in now.
例7 They may watch TV .
例8 We need speak English and English.
十三写出下列动词的第三人称单数形式。

1 go
2 spell 3
speak 4like 5teach
6 Be
7 are
8 study
9 have 10
do
十四将下列名词变成复数。

1 apple
2 orange
3 map
4 pen 5
pencil
6 desk
7 dog
8 tomato
9 photo 10 knife
十五将下列名词变成复数。

1 man
2 woman
3 child
4 person 5people
6 fish
7 sheep
8 deer
9 foot 10
tooth
十六写出人称代词主格。

十七写出人称代词宾格。

十八写出形容词性物主代词。

十九肯定回答和否定回答。

1 Is this your book
2 Are you a teacher
3 Is there any water in the cup
4 Are there any books or pens on the desk
5 Does he do his homework
6 Does Jim go to school
7 Do you like your English teacher
8 Do they study English
9 Can you dance
10 May he go home
11Must you come in time.
12 Need I finish the work today
13 Do you study English
14 Do they speak English
二十写出一般现在时的四种构成。

1
2
3
4
一般现在时精炼答案
一将下列句子变否定句。

例1 I am not a boy. 或I’m not a boy.
例2 You are not a girl.或You aren’t a girl.
例3 He is not a teacher.或He isn’t a teacher
例4 Jim is not English.或Jim isn’t English
例5 These are not bikes.或These aren’t bikes.
例6 Those are not maps.或Those aren’t maps
例7 They are not buses.或They aren’t buses.
例8 We are not Chinese.或We aren’t Chinese 二将下列句子变否定句。

例1 I’m not a boy.
例2 You’re not a girl.或You aren’t a girl.
例3 He’s a teacher.或He isn’t a teacher.
例4 It’s not a pen.或It isn’t a pen.
例5 These are not any bikes.或These aren’t any bikes.
例6 Those are not maps or pencils.
或Those aren’t maps or pencils.
例7 They’re not any buses or cars.
或Theyaren’t any buses or cars.
例8 She is not your teacher.
三将下列句子变疑问句。

例1 Are you a boy
例2Are you a girl
例3 Is he your teacher
例4 Is Jim your English
例5 Are these any bikes
例6 Are those your maps
例7 Are they any buses.
例8 Are you Chinese
四将下列句子变成疑问句。

例1 Are you a boy
例2 Are you a girl
例3 Is he your teacher
例4 Is it a pen.
例5 Are these any bikes
例6 Are those maps or pencils
例7 Are they any buses or cars
例8 Is she your teacher
五将下列句子变否定句。

例1 I don’t teach English.
例2 They don’t go to school.
例3 We don’t sing a song.
例4 He doesn’t spell it.
例5 She doesn’t go to school.
例6 H e doesn’t do his homework..
例7 They don’t do their homework.
例8 I don’t do my homework.
六将下列句子变否定句。

例1 He doesn’t teach my English.
例2 They don’t speak English or French.
例3 We don’t eat any apples.
例4 Jim doesn’t spell it.
例5 She doesn’t go to our school.
例6 He doesn’t do any homework..
例7 They don’t do their homework.
例8 We don’t do any homework.
七将下列句子变疑问句。

例1 Do you teach English
例2Do they go to school
例3 Do you sing a song
例4 Does he spell it
例5 Does she go to school
例6 Does he do his homework
例7 Do they do their homework.
例8Do you do your homework
八将下列句子变疑问句。

例1 Does he teach your English
例2 Do they speak English or French
例3 Do you eat any apples
例4 Does Jim spell it
例5 Does she go to your school
例6 Does he do any homework
例7 Do they do their homework.
例8 Do you do any homework
九将下列句子变否定句。

例1 I can not dance. 或I can’t dance.
例2 They can not speak English.
或They can’t speak English
例3 He must not go home.
或 He mustn't go home.
例4 He can not be on the playground.
例5 You must not say something at the mecting.
或You needn’t say anything at the mecting 例6 You mustn't come in now.
例7 He mustn't watch TV .
例8 We need not speak English.
十将下列句子变否定句。

例1 I can’t dance or sing. 或I can not dance or sing.
例2 They can’t speak any English.
或They can not speak any English
例3You must not go home.
例4 They can not be on the playground.
例5He must not say something at the mecting.
或He needn’t say anything at the mecting
例6 Jim mustn't come in now.
例7 They mustn't watch TV .
例8 We need not speak English or English.
十一将下列句子变疑问句。

例1 Can you dance
例2 Can they speak English
例3Must he go home
例4 Must he be on the playground
例5 Must you say something at the mecting.
例6 May I come in now
例7 May he watch TV
例8 Need you speak English
十二将下列句子疑问定句。

例1 Can you dance or sing
例2 Can they speak any English
例3 Must you go home
例4 Must they be on the playground
例5 Must he say something at the mecting
例6 May I come in now
例7 May they watch TV
例8 Need you speak English or English
十三写出下列动词的第三人称单数形式。

1 goes
2 spells
3 speaks 4likes 5teaches
6 is
7 is
8 studies
9 has 10 does
十四将下列名词变成复数。

1 apples
2 oranges
3 maps
4 pens
5 pencils
6 desks
7 dogs
8 tomatoes
9 photos 10 knives
十五将下列名词变成复数。

1 men
2 women
3 children
4 person 5people 6 fish 7 sheep 8 deer 9 feet 10 teeth
十六写出人称代词主
格。

I 我 you 你 he 他she她 it它；
we我们you 你们 they 他（她它）们
十七写出人称代词宾格。

me我 you你 him他 her她 it 它
us我们 you 你们 them他（她它）们
十八写出形容词性物主代词。

my 我的your 你的his 他的her 她的its它的；
our我们的your你们的their他（她它）们的
十九肯定回答和否定回答。

1 Is this your book Yes，it is. No，it isn’t.
2 Are you a teacher Yes ，I am. No，I’m not.
3 Is there any water in the cup Yes ，there is. No，there isn’t.
4 Are there any books or pens on the desk Yes，there are. No ，there aren’t.
5 Does he do his homework Yes ，he does. No，he doesn’t.
6 Does Jim go to school Yes，he does. No，he doesn’t.
7 Do you like your English teacher Yes，I do . No，I don’t.
8 Do they study English Yes ，they do. No，they don’t.
9 Can you dance Yes ，I can. No，I can’t.
10 May he go home Yes，he may. （肯定回答）
No, he mustn't. （否定回答）
11Must you come in time. Yes, I must. （肯定回答）
No，I needn't. （否定回答）
12 Need I finish the work today Yes，you must.
No，you needn’t.
13 Do you study English Yes ，I do. No，I don’t.
14 Do they speak EnglishYes，they do. No，they don’t.
二十写出一般现在时的四种构成。