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小学四年级英语常用语法总结

一般疑问句及特殊疑问句

句子基本是:简单陈述句,由简单陈述句转变成肯定句,否定句,疑问句。疑问句是用来提出问题。英语中有四种疑问句: 一般疑问句、特殊疑问句、选择疑问句和反意疑问句。我们现在已经接触到了前两种疑问句。后两种疑问句以后我们还会学到.

一.一般疑问句:

英语中要用 yes和no 来回答的疑问句叫一般疑问句。如:

1)Is it hot ?Yes, it is .\No, it isn’t.—— be动词引导

2)Is it a car ?Yes, it is .\No, it isn’t .—— be动词引导

3)Is this your ruler ?Yes, it is .\No, it isn’t .—— be动词引导

4)Do you like bananas ?——含实义动词

Yes, I like bananas. \ No, I don’t like bananas.

5)Can Ming hear a drill ?——含情态动词

Yes , Ming can hear a drill.\No,Ming can’t hear a drill.

.陈述句(肯定句,否定句,一般疑问句)的转变规律:

1.肯定句:2.否定句:3. 一般疑问句及肯否定回答

1) 主语+be动词+….1) 主语+be动词+not+….1)be动词+主语+…?

Yes, 主语+be动词./

No, 主语+be动词+not.

I am a teacher. I amnot a teacher.Are you a teacher?

--Yes, I am./ No, I am not.

My mother is thin. My mother is not /isn’t thin.Is your mother thin?

--Yes, she is./ No, she isn’t.

They areinsects. They are not/aren’t insects.Are they insects?

--Yes. they are./ No, they aren’t.

2) 主语+情态动词can+… 2) 主语+情态动词can+ not+….2)情态动词can+主语+…?

Yes, 主语+情态动词can/

No,主语+情态动词can+ not

He can jump. He cannot/can’tjump.Can he jump?

--Yes,he can./ No, he can’t.

3)助动词do/does+主语+…. 动词原形+….动词原形?

Yes, 主语+助动词do/does.

No, 主语+助动词do/does+not.

He likes to eat apples. He doesn’t like to eat apples. Does he like to eat apples?

Yes,he does./ No,he doesn’t.

二. 祈使句:表示请求、命令、建议或劝告等的句子叫祈使句,主语you常省略。

1、肯定形式:一般以动词原形开头。 Open the door, please.

2、否定形式:在句首谓语动词前加Don‘t。 Don‘t be late for class.

三特殊疑问句(又叫wh-question)

用特殊疑问词来提出问题的疑问句叫作特殊疑问句。特殊疑问词一般要放在句首。常用的疑问词有what who ,which how 等这些词都以wh开头(包括how)所以也叫作wh-question。特殊疑问句要求回答具体内容。不能用yes或no回答。结构:疑问词+一般疑问句。回答不能用yes / no(或相当于yes / no)回答的问句。答句的句式同肯定句句式:如:

What can you see ? I can see a cat.

What can you hear ? I can hear a bus.

What can you do ? I can sing and dance.

What is it ?  It’s a panda.

What do you like ? I like playing football

How old are you ? I’m ten.

一.将下列句子变成一般疑问句

1 Mr Wang is thirsty______________?

2.The elephent’s ears are long______?

3. We like birds___________________?

4.Hello.You are his mother__________?

5.I can sing and dance._____________?

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