初中英语一般疑问句、否定句、特殊疑问句的改法
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一般疑问句、否定句、特殊疑问句的改法(150308)
动词的分类
Be动词：is, am, are, was, were
助动词：do, does, did, has, have, had
动词情态动词：can, must, may, should, 等
实义动词：run, eat, play, like, 等等。
陈述句改为一般疑问句的改法：
一般疑问句：以be动词、助动词、情态动词为句首，句末有问号（？）的句子。例如：
Is she a doctor. 她是一名医生吗？
Has she got any grapes? 她有些葡萄吗？（这里的has是助动词，got（get的原形）是有的意思。
Can you fly? 你会飞吗？
当句子中的谓语只有实义动词，没有be动词、助动词、情态动词的时候，句子变一般疑问句时要加do、does、did（do、dose的过去式）其中之一。如：The fox likes grapes. 句子的谓语没有be动词、助动词、情态动词，只有likes，like是实义动词，因此，句首要加助动词；又因为the fox是第三人称单数，句首的助动词就用does. 句子的就变成Does the fox like grapes? 注意原来likes中的s，要删除。
一般疑问句主语和be动词、助动词、情态动词倒装。没有这三类词时要加助动词。如：
She is a doctor. to school at seven.
Is she a doctor? Does
记住：实义动词始终在主语的后面。
注意：述句（句子后面只有句号的句子）给成一般疑问句时，一般情况下，还要把第一人称I、we、my、our改成you、your，把some变成any。如：
making
变成：Have you got any apples? Are you your aeroplane?
We are watching TV. 变成：Are you watching TV?
还要注意：如果has、have、had、do、does、did后面是名词时，has、have就不是助动词了，他们是实义动词。改一般疑问时不能提前（一般情况下，所有实义动词都不能提到主语前面），要根据时态加助动词do、does、did。
如：
Does breakfast everyday?
练习，把下列的句子改成一般疑问句。
1. His father is an English teacher.
2. These cats are crying.
3. They can swim.
4. I like to read English.
5. I go to school on foot.
6. He likes English.
7. His father goes to work by bus.
8. He is crying under the tree.
9. His birthday is on the twentieth of November.
10. Mrs. Li and Kitty are in a big shop.
11. Kitty is wearing her new uniform.
12. The boy under the tree is hungry.
13. He goes to school every day.
14. I want to have a model car.
15. She wants a cup of coffee.
16. Mrs. Li and Kitty watch television at night.
17. I do my homework after school.
18.I have got some grapes.
19.Tom’s got a bird.
20.Kitty and Tom have got a dog.
21.I have breakfast(早饭) every morning.
22.They do their homework after school(放学).
否定句的改法
首先要认清“否”就是“不”的意思，在英语中就是not或not的省略形式n’t。
否定句是在be动词、助动词、情态动词后加not或not的缩略形式n’t。人称不变化。实义动词不能直接加否定词，须加助动词doesn’t（第三人称单数）、don’t、didn’t。
例如：I am English teacher. 改成：I am not （aren’t也可以）English teacher.
She has got some apples. 改成：She hasn’t（has not也可以）got any apples.
注意：一些否定词hardly（几乎不）few（很少可数）little（很少不可数）nothing（没有）none（没有人或物）等也是否定词。含有此类否定词的句子也是否定句。am not的否定缩略形式是aren’t
如：Su yang often plays football.可以改成：
Su yang doesn't play football (at all).
Su yang seldom plays football.
Su yang never plays football.
Some改成否定句一般也要改成any。
练习，将下列句子改为否定句。
1. His father is an English teacher.
2. These cats are crying.
3. They can swim.
4. I like to read English.
5. I go to school on foot.
6. He likes English.
7. Mrs. Li and Kitty watch television at night.
8. I do my homework after school.
9.I have got some grapes.
10.Tom’s got a bird.
11.I have breakfast(早饭) every morning.