在以前的教学中经常碰到孩子学了几年英语，仍旧不会变换一些基本的英语句型转换，下面是小编收集整理的一些初一英语上册句型转换方法，大家一起来看看吧!
含有be动词的陈述句，通常把be提到句首，将第一人称变为第二人称，其余不变。
例:They are in the swimming pool.——Are they in the swimming pool?
I am making supper.——Are you making supper?
在陈述句中没有be，就要借助助动词do/does/did，将动词还原，第一人称变为第二人称，构成“Do/Does/Did+主语+动词原形+其他?”句型
例: I think maths difficult.——Do you think maths difficult?
Amy speaks English.——Does Amy speak English?
I paid two yuan for the pen.——Did you pay two yuan for the pen?
含有情态动词的陈述句，把情态动词提到句首，第一人称变为第二人称，其余不变。
例:He can drive a car.—— Can he drive a car?
含有have/has/had的陈述句，变疑问有两种形式:a.把have/has/had提到句首，第一人称变为第二人称，其余不变;b.加助动词do/does/did，第一人称变为第二人称，构成“Do/Does/Did+主语+have+其他?”句型。
例:Tom has a book.——Has Tom a book?
Tom has a book.——Does Tom have a book?
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2陈述句改否定句
1，句子中有联系动词be或情态动词can ，may ，must或助动词will， have， had等词的，应在其后加not.
*句中有some , already的，将其变为any, yet
如:There are some people in the garden.
---There are not(或aren’t) any people in the garden.
We have already learned English for three years.
---We have not (或haven’t) learned English for three years yet.
*already变否定用yet，同时一般放句后。
注意have是助动词,还是实义动词。如果是实义动词，要用助动词do的否定式。
例:She has supper at six in the evening.
---She does not have supper at six in the evening.
2，句子中的谓语动词为实义动词时，则在动词前加don’t(doesn’t, didn’t), 原来的动词恢复原形(分词除外)。这类句子经常考的谓语动词是have和do 。
应掌握以下技巧:
如:She does (did) her homework everyday(yesterday).
----She doesn’t( didn’t) do her homework everyday (yesterday).
注意:在上句中，原谓语动词(即，实意动词does)前加否定助动词doesn’t, 原谓语动词does 变为原形 do
She has (had) a meeting today (yesterday).
----She doesn’t (didn’t) have a meeting today (yesterday).
注意:这里的has或 had 要变为原形have
3，had better句型是考试的重点内容之一。它常与主语缩写，如you’d ,这种缩写只要看后面有没有better, 即为had, 切忌误认为would
had better句型意思为“最好-----， 还是----好”，常有告诫、劝告、催促之意，其后接不带to 的不定式，即动词原形。它的否定形式， 一定要把not放在better后面。
*had better +动词原形------(肯定式)
had better not +动词原形-----(否定式)
如:You’d better catch a bus.你最好赶得上车子(赶快啊!)
You’d better not take these seats.你还是不要做这些位置(座位)
此句型的反义疑问句是:You’d better do it now, hadn’t you?
3复合句改否定句
1，复合句改否定句应掌握think、believe和 feel这三个主句谓语动词后接宾语从句时整个句子的否定形式。这类句子改为否定句时，要对上述主句谓语动词进行否定，但否定意思转移到后面的宾语从句。
如:I think he will go there tomorrow.
--- I don’t think he will go there tomorrow.
汉语的意思是“我想他明天不会去那里”，千万不要译“我不想他明天去那里”。更不要把英语句子改成 I think he won’t(*严重错误) go there tomorrow.大错特错。
2，含有both词语的句子改否定句
陈述句含有both+名词或者both of +名词或代词宾格作主语时，改写否定句要用neither 替代both，注意把谓语动词复数形式改写为单数形式。
如:Both of them learn English in that school.
------ Neither of them learns English in that school.
句中含有 both A and B改否定句时，要将其改为 neither A nor B, 其谓语动词根据nor后面的名词的数做相应变化。
both A and B——变否定—— neither A nor B
如:Both Mary and Jim are students.
----- Neither Mary nor Jim is a student.
4改写成特殊疑问句
特殊疑问句由“疑问句 + 一般疑问句”构成，改写这种句子应把握两个关键，一是选准疑问词;二是将疑问词后的句子变成一般疑问句。注意以下技巧:
1. 对于时间划线用
what time ——(具体时间，如at 9:00)
how long ——(一段时间，如since 2000, for two days)
how often——( 频率时间，如once a year)
how soon——( 将来时间，如in a month)。
如:We have lived here since 1986.
-----How long have you lived here?
2, 对于职业划线用what.
如:Henry is an English teacher.
-----What is Henry?
3, 对距离划线用how far，对长度划线用how long，注意二者不能互换。
如:He travelled nearly ten thousand kilometers.
----How far did he travel ?
The Yellow River is 5464 kilometres long.
-----How long is the Yellow River?
4, 对数量划线用how many (后面跟可数名词复数)，how much(后面可跟不可数名词，也可单独作句子成份)
如:There are four persons in our office.
----How many persons are there in your office?
This book is six dollars.
-----How much is this book?