名词变复数规则

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名词变复数规则:名词n:万物的名称,包括人或物的名字。

名词的分类:1.可数名词[c] 2.不可数名词[u]

1.一般名词复数是在名词后面加上“s”,如map→maps,bag→bags

2.以s, sh, ch, x等结尾的词加“es”,如bus→buses, watch→watches

box—boxes dish---dishes等;

3.以辅音字母+y结尾的词,变y为i加es,如baby→babies

city—cities story--stories等;

以元音字母+ y结尾的名词变复数时,直接加s变复数,如monkey→monkeys,

boy--boys, storey→storeys(楼层);

4.以f或fe结尾的名词变复数时:把f或fe 变成v再加ves的名词有: half→halves

knife→knives leaf→leaves wolf→wolves

wife→wives life→lives thief→thieves

5.以o 结尾的名词变复数时:在有生命的名词词尾加es

potato→potatoes tomato→tomatoes

无生命在词尾加s

photo→photos ,piano→pianos, radio→radios, zoo→zoos

常见不规则,可数名词变复数形式:man---men woman—women foot—feet

tooth—teethgoose(鹅)----geese child---children mouse—micesheep—sheep

fish---fish chinese—chinese

deer---deer(鹿) zoo-----zoo/zoos

重点:1. I love sheep (sheep是复数,泛指)

2. This is a deer (单数)

3. these are deer (复数)

解析:在英语句子中,可数名词单数形式,常与某一限定词搭配出现,限定词常不能单独使用,如无限定词,该名词常以复数出现。

例: I like dogs

I qlike a dog (限定词:a, an, this, that, the, your)

一般疑问句

一般疑问句是疑问句的一种。它是指用yes或no来回答的句子。

其结构是:系动词be/助动词/情态动词+主语+其他成分

Are you from Japan﹖

Yes I am. / No I'm not.

Can you speak French﹖

Yes I can. / No I can't.

Does he work in a bank﹖

Yes he does. / No he doesn't.

1.将陈述句变为一般疑问句时,如句中有be 动词(am/ is/ are)时,可直接将它们提至主语前。如主语为第一人称,应将其改为第二人称。

如:I'm in Class 2Grade 1. → Are you in Class 2Grade 1﹖

2.陈述句中有情态动词(can may must …)时,也可直接将它们提至主语前,即可成为一般疑问句。

如:He can swim now. → Can he swim now﹖

3.一般动词的一般疑问句,也要借助助动词do/does,第三人称单数用does,其余人称用do。其句型为:Do/Does + 主语 + 动词原形+其它?

如:I like these animals. → Do you like these animals﹖

She wants to go to the movies. → Does she want to go to the movies﹖

4.一般疑问句一般读升调(↑)

5.一般疑问句有时不用yes或 no 回答。如:

Are they in town now﹖ I think so.

May I sit here﹖ Certainly.

Does he like soccer﹖ Sorry I don't know.