初一英语100道肯定句变否定句的题

英语肯定句变否定句例句~

只要把be动词提前就好了。例：there
is
a
newspaper
on
the
desk.——is
there
a
newspaper
on
the
desk?有时会给你一个这样的题：he
wants
a
new
car.你就要这样变：does
he
want
a
new
car?因为肯定句里有动词+s或+es时，你就要找一个be动词，要找do或does，如果肯定句是过去式的话，就要找do和does的过去式，就是did。有了be动词后，就要动词原形。

首先看是否为 主语+be动词+形容词 如果是直接在be动词前面加not
主谓宾的 主语+动词+...需要在动词前面写doesn't 或者don't或者didn't根据时态不同决定
最常见的是这两种

做题多少不重要，重要的是理解和吃透题目，保证自己下次能做出来。
100道题实在太多，如有必须，建议去买本题做比较好。
这里我帮你找了肯定变否定的语法摘要，希望对你有帮助！O(∩_∩)O~

一、陈述句的肯定式变否定式

1. 谓语动词是系动词 be 、情态动词或助动词时，直接在这些词的后面加上否定词。如：

I am a teacher. → I am not a teacher.

Li Lei can swim. → Li Lei cannot （ can't ） swim.

We have learned 3,000 words. → We have not （ haven't ） learned 3,000 words.

He will go to the zoo if it rains tomorrow. → He will not （ won't ） go to the zoo if it rains tomorrow.

2. 谓语动词是行为动词时，要根据时态选用 do 的相应形式，即 do / does / did not ，并把该谓语动词恢复原形。如：

I get up at six o'clock every day. → I don't get up at six o'clock every day.

Mr Wang works in a factory. → Mr Wang doesn't work in a factory.

Xia Lin visited our friends last night. → Xia Lin didn't visit our friends last night.

3. 用含有否定意义的词或词组直接取代肯定句中的某些词或词组。

（ 1 ）肯定句中含有 always 和 ever ，变否定句时改为 never 。如：

He is always late for school. → He is never late for school.

My uncle's ever been to many parts of England. → My uncle has never been to many parts of England.

（ 2 ）肯定句中含有 nearly ， almost ，变否定句时改为 hardly 。如：

Lin Tao nearly knows him. → Lin Tao hardly knows him.

（ 3 ）肯定句中含有 many ， much, 变否定句时改为 few, little 。如：

Many students know the man under the tree. → Few students know the man under the tree.

There is much water in the glass. → There is little water in the glass.

（ 4 ）肯定句中含有 both, both … and ， all ，变否定句时改为 neither, neither … nor, none 。如：

Both of us are students. → Neither of us is a student.

I know both English and Chinese. → I know neither English nor Chinese.

All of them like bananas. → None of them like （ s ） bananas.

（ 5 ）肯定句中含有 every-, some- 的合成词，变否定句时常改为含有 no- 的合成词。如：

Everything is ready. → Nothing is ready.

There is something wrong with my bike. → There is nothing wrong with my bike.

（ 6 ）肯定句中含有“形容词＋ enough ”，变否定句时改为“ too ＋形容词的反义词”。如：

She is old enough to go to school. → She is too young to go to school.

二、祈使句的肯定式变否定式

1. 一般情况下，在句首的动词前加 Don't 。如：

Close the door. → Don't close the door.

2. 肯定句是“ had better ＋动词原形”，变否定句时改为“ had better not ＋动词原形”。如：

You'd better come to school earlier next time. → You'd better not come to school earlier next time.

3. 以 Let's 或 Let us 开头的祈使句，在变否定句时常在其后加 not ；有时也可在其前加 Don't 。如：

Let's play with fire. → Let's not play with fire. → Don't let's play with fire.

Let me try again. → Let me not try again. → Don't let me try again.

三、复合句的肯定式变否定式

1. 一般将主句变为否定式。如：

I was cooking when he knocked at the door. → I was not cooking when he knocked at the door.

2. 在谓语动词是 think, believe, suppose, guess 等的宾语从句中，变否定句时常否定主句。如：

I think he will give you a call. → I don't think he will give you a call.

四、肯定句变否定句应注意的其他情况

1. 动词不定式变否定式时，常在不定式符号 to 前加 not 。如：

The teacher asked me to speak more loudly. → The teacher asked me not to speak more loudly.

2. 既要否定谓语动词，又要变换句中的单词（ and 一般要变为 or, some 变为 any, already 变为 yet, too 变为 either ）。如：

He can read and write. → He can't read or write.

We can see some flowers in front of the house. → We can't see any flowers in front of the house.

The students of No 2 Middle School have gone for a picnic already. → The students of No 2 Middle School haven't gone for a picnic yet.

欢迎追问！！~英语学习上加油！！O(∩_∩)O~

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