[三年级小学生整理书桌的视频]给三年级小学生整理的【三篇】英语语法知识点

副标题:给三年级小学生整理的【三篇】英语语法知识点

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【#三年级# 导语】正确的语法可以简化信息,简单的一句话就能传达很多信息,甚至包含多重意思,就像双关语一样。语法正确还能避免歧义,明确指代关系和修饰对象等,是很有用的,学进去了就明白了。以下是®文档大全网整理的相关资料,希望对您有所帮助!


【篇一】


肯定句:动词原型

Come here, please.

Go downstairs, please.

Stand up.

Sit down.

Be quiet.

Be careful.

祈使句中如果有唤语,一定要用逗号隔开,放在句首或者句尾:

Come in, Amy.

Sit down here, Tom.

Mary, give me a book please.

★否定:Don't+动词原型

Don't come here.

Don't sit down.

Don't stand up.

Don't give me it.

let sb. do 让某人做

Let me pass.

Let us have a rest.

Let's have a rest.

反意疑问:

Let's have a walk along the river, shall we?

Let us go out for a drink, will you?


【篇二】


英语名词复数规则

1.一般情况下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds

2.以s。 x。 sh。 ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches

3.以“辅音字母 y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries

4.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives 〕

Leaf--leaves

5.不规则名词复数:

man-men, woman-women, policeman-policemen, policewoman-policewomen,

child-children

foot-feet,。tooth-teeth

fish-fish, people-people, Chinese-Chinese, Japanese-Japanese


【篇三】


引导条件状语从句的从属连词

主要的有if, unless, as [so] long as等:

You can leave now if you like. 如果你愿意现在就可以走了。

As long as it doesn’t rain we can go. 只要不下雨,我们就可以去。

【注】除以上基本的引导条件状语从句的从属连词外,还有的动词尤其是其分词形式(如suppose, supposing, provided, providing等)和介词短语(如in case, on condition that等)也可用作连词表示条件:

In case I forget, please remind me about it. 万一我忘记,请提醒我一下。

I will come on condition (that) she is invited too. 如果邀请她来, 那我就来。

He may go with us provided [providing] he arrives in time. 他若及时到,就可以和我们一起走。

Suppose 和supposing 引导条件状语从句时,通常用于主句为疑问句的场合:

Suppose the boss saw you,what would he say? 如果老板看到你,他会怎样说?

Supposing he does not come, shall we go without him? 他若不来,是不是不带他去?

条件状语从句的时态

当主句为将来时态或具有将来意时,条件状语从句通常要用一般现在时表示将来意义,而不能直接使用将来时态:

I’ll stay at home if it rains tomorrow. 要是明天下雨,我就呆在家里。

【注】有时也可见到 if you will 这样的说法,但那不是将来时态,而是表示意愿或委婉的请求(此处的 will是情态动词):

If you will wait for a moment, I’ll go and tell the manager that you are here. 请等一下,我去告诉经理说你来了。

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