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小学英语句型结构

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小学英语句型结构
小学英语句型结构
肯定句:是指用肯定的语气来陈述的句子,如:I’m a student.She is a doctor.He works in a hospital.
There are four fans in our classroom.He will eat lunch at 12:00.I watched TV yesterday evening.
2、否定句:含有否定词或表示否定意义词的句子,如:I’m not a student.She is not (isn’t) a doctor.
He does not (doesn’t) work in a hospital.There are not (aren’t) four fans in our classroom.
He will not (won’t) eat lunch at 12:00.I did not (didn’t) watch TV yesterday evening.
☆注意☆ 小结:否定句主要是在肯定句的基础上加上了否定词 “not”.有动词be的句子则“not”加在be后面,可缩写成“isn’t,aren’t”,但am not 一般都分开写.没有动词be的句子则要先在主要动词的前面加上一个助动词(do,does,did),然后在它后面加上“not”,你也可以把它们缩写在一起如“don’t ,doesn’t ,didn’t ).这三个助动词要根据人称和时态来选择,其中“does”只用于一般现在时主语是第三人称单数的情况,而“did”只用于一般过去时,不论主语是什么人称和数,都用“did” .
3、一般疑问句:是指询问事实的句子,此类句子必须用“yes”,或“no”来回答.
如:Are you a student?Yes,I am / No,I’m not.
Is she a doctor?Yes,she is./ No,she isn’t.
Does he work in a hospital?Yes,he does./ No,he doesn’t.
Are there four fans in our classroom?Yes,there are./ No,there aren’t.
Are you going to buy a comic book tonight?Yes,I am./ No,I am not.(Yes,we are./ No,we aren’t.)
Will he eat lunch at 12:00?Yes,I will./ No,I will not(won’t).
Are they swimming?Yes,they are./ No,they aren’t.
Did you watch TV yesterday evening?Yes,I did./ No,I didn’t.
☆注意☆ 小结:一般疑问句是在肯定句的基础上,
①把动词be调到首位,其他照写,末尾标点符号变成问号即可.
②没有动词be的句子则要在句首加上一个助动词(do,does,did)再把紧跟在后面的动词变回原形,末尾标点符号变成问号即可.
这三个助动词也要根据人称和时态来选择,其中“does”只用于一般现在时主语是第三人称单数的情况,而“did”只用于一般过去时,不论主语是什么人称和数,都用“did” .一般疑问句有个重要的原则就是问和答要一致,即问句里的第一个单词(助动词)和简略答句里的这个词是一致的.
4、特殊疑问句:以特殊疑问词(what ,where ,who ,which ,when ,whose ,why ,how等)开头引导的句子.此类句子应该问什么就答什么,不能用“yes 、no”来回答.如:
What is this?It’s a computer.
What does he do?He’s a doctor.
Where are you going?I’m going to Beijing.
Who played football with you yesterday afternoon?Mike.
Which season do you like best?Summer.
When do you usually get up?I usually get up at 6:30.
Whose skirt is this?It’s Amy’s.
Why do you like spring best?Because I can plant trees.
How are you?I’m fine./ I’m happy.
How did you go to Xinjiang?I went to Xinjiang by train.
☆其中how又可以和其他一些形容词连用组成特殊疑问词组用来提问,如:how many(多少(数量)),how much(多少(钱)),how tall(多高),how long(多长),how big(多大),how heavy(多重)
例句:How many pencils do you have?I have three pencils.
How many girls can you see?I can see four girls.
How many desks are there in your classroom?There are 51.
☆小结:how many 用来提问可数名词的数量,主要有以上三种句式搭配,
How many + 名词复数 + do you have?你有多少……?
How many + 名词复数 + can you see?你能看见多少……?
How many + 名词复数 + are there…?有多少……?
还有一个网址,自己去看一下