将肯定句变否定句方法：
1. 如果句中有be(am/is/are)动词，先找到be动词，然后在后面加not.
例如：he is playing on the grass.--he is not(可缩写成isn’t) playing on the grass.
练习：1） there are some flowers in our school.(变否定句)
2) i am an english teacher
2. 带should, can等情态动词的句子，直接在情态动词should, can后加not.
如： he should get up now.--he shouldn’t get up now.
the boy can walk
3. 祈使句（以动词原形开头的句子）变否定句时，一般在句首加don’t.
如： be late.--don’t be late. come here. -don’t come here.
练习： stand there
4. 在一般现在时含实意动词的句子里，要借助助动词do或者does来变否定句。如果主语是单三，借助does, 如果不是单三，借助do, 然后再加not.
例如：she watches tv every day.--she does not (缩写doesn’t)watch tv every day.
you h**e a big family. -you do not(缩写don’t ) h**e a big family.
练习：he goes to school every day
my parents go jogging every evening
将肯定句变成一般疑问句方法：
将be动词，助动词或情态动词提前，其他照抄就可以。
例如：he is playing the piano. -is he playing the piano?
tom can do handstands. -can tom do handstands?
lily tries many times. -does lily try many times?
将句子变成特殊疑问句方法： 特殊疑问句=特殊疑问词+一般疑问句。
对划线部分提问的题都是变特殊疑问句，要用特殊疑问词what, where, what time, how, when, who, how many等来提问。
what：用来提问物品，动作where：用来提问地点。
what time用来提问时间点how：用来提问交通方式和身体状况。
when：用来提问时间who：用来提问人物。
how many, how much：用来提问数量。可数名词how many, 不可数名次how much.
例如：there is a glass of water on the table.
water is there on the table.
there are three people in his family.
people are there in his family?
句型转换练习题：
1. it is a big tiger.
否定句一般疑问句。
2. we are sitting under the tree.
否定句一般疑问句。
3. mike and d**id are my cousins.
否定句一般疑问句。
4. there is some milk in the glass.
否定句一般疑问句。
5. there are some buses in the street.
否定句一般疑问句。
6. i am h**ing lunch in the kitchen.
否定句一般疑问句。
7. we are playing the guitar now.
否定句一般疑问句。
8. i can play the piano.
否定句一般疑问句。
9. she can make a nice cake.
否定句一般疑问句。
10. they go to bed at 9:30.
否定句一般疑问句。
11. i h**e a nice toy.
否定句一般疑问句。
12. we like drawing.
否定句一般疑问句。
13. he likes swimming.
否定句一般疑问句。
14. tom goes to school on monday.
否定句一般疑问句。
15. sam does his homework every day.
否定句一般疑问句。
16. my mum washes clothes every day.
否定句一般疑问句。
17. tom is singing. (划线部分提问。
18. grandma is sitting on a chair
19. it is 7:00
20. he goes to school by bus
21. there aretwopools in the sports center.（对划线部分提问）
22. i canplay volleyball.（对划线部分提问。
23. liu xiangis my f**orite sports star.（对划线部分提问）
24. he’slearning divingnow.（对划线部分提问）
25. i needa baseball bat.（对划线部分提问。
26. linda is going to visit beijing this holiday. （对划线部分提问）
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