一般现在时变否定句的规则0001.docx

1、一般现在时变否定句的规则0001一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 doesnt, 后面的动词用原形。例 1 He eats an apple.否定句 H

2、e doesnt eat an apple.例 2 Jim does his homework.否定句 Jim doesnt do his homework.例 3 Marry goes to school.否定句 Marry doesnt 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 dont.例 1 I teach English.否定句 I dont teach English.例 2 They go to school.否定句 They dont go to school.例 3 We sing a song.否定句 We dont sing a

3、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 cant dance.否定句 They can not speak English.或 They cant speak English.例 3 He must go home.否定句 He must not go home.或 He mustnt 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

4、 “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或mustnt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 mustnt 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 m

5、ay watch TV .He mustnt 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 dont eat any apples.例 2 He has some books.否定句 He doesnt have any books.例 3 He does his home work.否定句 He doesnt 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

6、t any air or water on the moon.例 2 He has some brothers and sisters.否定句 He hasnt 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 doesnt go to school either.too 和 also 用于肯定句中时，否定句中用 eithe

7、r 替换( 4 见到 already 变否定句时 ,要换成 yet。例 1 He has had supper already.He hasnt 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1 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.例 8 We are Chinese.2 将下列句子变否定句。例 1 I m

8、 a boy.例 2 You re a girl.例 3 He s a teacher.例 6 Those are maps and pencils.例 7 They re some buses and cars.例 8 She is your teacher.3 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 a

9、re Chinese.4 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.5 将下列句子变否定句。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

10、 goes to school.例 6 He does his homework.例 7 They do their homework.例 8 I do my homework.6 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 home

11、work.7 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.8 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 spel

12、ls 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.9 将下列句子变否定句。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

13、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

14、 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 pl

15、ayground.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 5teach6 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 pencil6 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 5people6 fish 7 sheep 8 deer