小升初英语讲解句型：陈述句否定句一般疑问句

小升初英语总复习精讲精练之句型转换（一） 肯定陈述句变为否定陈述句和一般疑问句

【精讲】 截至目前，我们已经复习了小升初常考的词法和时态。从今天开始，我们一起复习一下小升初的另一个大考点：句型转换。英语中的四大句型分别是：陈述句、疑问句、祈使句和感叹句。在小学阶段，除了感叹句，其他三种句型同学们都有接触到。今天我们一起梳理两个知识点：1、肯定陈述句转换为否定陈述句；2、陈述句转换为疑问句。

陈述句就是以句号结尾的句子，分为两种：肯定陈述句和否定陈述句。肯定陈

述句转换为否定陈述句分为以下几种情况： [含有be动词的陈述句]

含有be动词的肯定句变为否定句时，直接在be动词后+not，除am not外，其他均可缩写。例如：

1、I am in ahurry. → I am not in ahurry. 2、He is at work. → He is not (isn’t) at work.

3、They are from America. → They are not (aren’t) from America.

[含有情态动词的陈述句]

含有情态动词的肯定句变为否定句时，直接在情态动词后+not，可缩写。例如： 1、I can speak French. → I can’t speak French. 2、He must do it at once. → He must do it at once.

3、They should call the doctor. → They shouldn’t call the doctor.

[含有实意动词的陈述句]

含有实意动词的肯定句变为否定句时，要根据时态和人称在主语后加一个助动词的否定形式（don’t/ doesn’t/ didn’t），实意动词用原形。例如： 1、I like bananas. → I don’t like bananas.

2、He lives in Beijing. → He doesn’t live in Beijing.

3、They went to Canada last week. → They didn’t go to Canada last week. 以上就是肯定陈述句变为否定陈述句的几种变化形式。接下来我们再来梳理一下陈述句变为一般疑问句的变法。以问号结尾的句子统称为疑问句，小学阶段学习的疑问句分为两种：一般疑问句和特殊疑问句。一般疑问句就是可以用yes或no来回答的疑问句。同样，陈述句转换为一般疑问句也分为以下三种情况： [含有be动词的陈述句]

含有be动词的陈述句变为一般疑问句时，只需要把be动词提前到句首，句子中如果出现some需要变为any。例如： 1、That is a bird. → Is that a bird ?

2、There is some milk in the fridge. → Is there any milk in the fridge ? 3、They are going to play tennis. → Are they going to play tennis ?

[含有情态动词的陈述句]

含有情态动词的陈述句变为一般疑问句时，只需要把情态动词提前到句首,。例如： 1、He can cook. → Can he cook?

2、They will help that new student. → Will they help that new student ? 3、She must do her homework now. → Must she do her home work now ?

[含有实意动词的陈述句]

含有实意动词的陈述句变为一般疑问句时，根据时态和人称确定一个助动词，并将这个助动词提前到句首，实意动词用原形。例如： 1、I get up very early. → Do you get up very early ?

2、She likes reading in the library. → Does she like reading in the library ? 3、We swam last Sunday. → Did you swim last Sunday ?

[注意]陈述句中如果出现I/We第一人称时，变为一般疑问句要将第一人称转换为第二人称，因为通常我们不对自己提问，但是对一般疑问句进行回答时，要将第二人称再转换为第一人称。

【精练】

一、把下列句子变成否定句

1、Mary is always late for school.

2、Tina wants to play computer games with her friends. 3、They are shopping at the moment.

4、My parents usually take walks after supper. 5、That dog can catch mice.

6、Our teachers visited some middle schools in Australia. 7、My grandpa likes playing chess. 8、Mr. Black can repair that bike. 9、You should take some medicine. 10、His daughter told me a news.

二、把下列句子变成一般疑问句 1、She is the monitor of our class.

2、Tony has the largest bedroom in our class. 3、Your father goes to work by bus.

4、They must practice playing the violin before dinner. 5、Susan told her son to clean the house. 6、She can draw a picture.

7、They will havean English exam tomorrow. 8、I think that the girl in red is Lily.

9、Tom will take part in that competition. 10、May comes after April.

【精练答案】

一、1、Mary isn’t always late for school.

2、Tina doesn’t want to play computer games wither her friends. 3、They aren’t shopping at the moment.

4、My parents don’t usually take walks after supper. 5、That dog can’t catch mice.

6、Our teacher didn’t visit any middle schools in Australia. 7、My grandpa doesn’t like laying chess. 8、Mr. Black can’t repair that bike. 9、You shouldn’t take any medicine. 10、His daughter didn’t tell me a news.

二、1、Is she the monitor of our class ?

2、Does Tom have the largest bedroom in our class ? 3、Does your father go to work by bus ?

4、Must they practice playing the violin before dinner ? 5、Did Susan tell her son to clean the house ? 6、Can she drawa picture ?

7、Will they have an English exam tomorrow ? 8、Do you think that the girl in red is Lily? 9、Will Tom take part in that competition ? 10、Does May come after April ?