名词单数变复数形式

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名词单数变复数形式

一、基本变化规则

1、一般在名词后加s,变成复数。如 boy--boys girl--girls 2、单词是以sshchx结尾的,在后面加es。如 class--classes watch--watches brush--brushes fox--foxes 但只有stomach复数是stomachs

3、以“辅音字母+y”结尾的,yi,加es。如baby--babies puppy--puppies

4、以ffe结尾的,大部分是直接加s,其中只有十多个是把ffe改成v,再加es. leaf--leaves calf--calves

5、以o结尾的,除有生命的“两人两物”等少数在后面加es,如tomato--tomatoes potato--potatoes

s,( piano--pianos photo--photos zoo-zoos

6、以cesezed)ge等结尾的加s 二、不规则变化

1、含man的单词,man--menpoliceman--policemen 2、将oo改成ee. foot--feet tooth--teeth 3、复数形式为en的有 child--children

4、单复数同形 water sheep fish deer Chinese


Be动词

(I)am,你(you)are is连着他(he),她(she),它(it) 单数名词用is,复数名词全用are。变疑问往前提,句末问号莫丢弃。 变否定更容易,benot莫忘记。疑问否定任你变,句首大写莫迟疑。 在横线上填上合适的be动词。am,is,are 1Helen____ a student 2This _____my book. 3My father______a cook.

4Jack’s friend____in the study. 5Your mother_____swimming. 6Your sister______in the study.

7Those jackets_______my sister’s. 8That______her dog.

9The cat_______on the desk.

10The books_______under the table. 11His sisters______running. 12This train____for Shanghai. 13The dress______too big. 14This book______for you.

15The waitress______my mother. 16Those grapes________green. 17The children________singing.

18Helen and I______in the classroom. 19I _____a doctor.

20______you a nurse?Yes, I am.

4、主要人称代词

做主语(一般排在句首)I you 你;你们 it we 我们 they 他们 /她们/它们

做宾语: me you 你,你们 him us 我们 them 他们,她们,它们

he her she it

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