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三年级英语教案:句型转化的方法总结

2011-04-27

小学生英语句型转换的方法总结

一、 肯定句改否定句的方法 — 一步法

1、 有be动词的句子,在be动词(am ,is, are ,was, were)后加否定词not。如:is not , are not , am not, was not, were not;其中is not=isn’t, are not= aren’t, was not=wasn’t, were not=weren’t, 前者为“完全形式”,后者为“缩略形式”。例如:(1) I am a girl. → I am not a girl. (2)You are a student. →You are not a student. →You aren’t a student. (3)This is Tom’s bag. → This is not Tom’s bag. → This isn’t Tom’s bag.

2、 有情态动词can、should、will,would 等,在can,should,will,would等后加not。如:cannot= can’t, should not=shouldn’t, will not=won’t; 例子:(1) He can swim. → He can’t swim. (2) You should listen carefully in class. → You shouldn’t listen carefully in class. (3) They will put these pictures on the wall near the school gate. → They will not( won’t ) put the pictures on the wall near the school gate.

3、上述都没有的,在动词前加助动词do, does, did的否定形式, 动词还原。如:don’t/doesn’t/didn’t。I like dogs. → I don’t like dogs. He likes cats. → He doesn’t like cats. They watched TV last night. → They didn’t watch TV last night.

4、some 改成any。

5、以动词开头的祈使句,在动词前don’t. 例如:Close your eyes,please. → Don’t close your eyes, please.

二、 肯定句改一般疑问句的方法 — 三步法

1、 有be动词的句型,把be动词放在句首,剩下的照抄,(some 改成any,I改成you或we,my/our改成your,)句号改成问号。如: I am in the garden. →Are you in the garden? We are from America. →Are you from America? It is an orange. →Is it an orange?

2、有情态动词的句型,把情态动词can,shall, will等放到句首,剩下的照抄,(some 改成any,I改成you,my改成your,)句号改成问号。 如:I can ride the horses. → Can you ride the horses? We will go an join them? → Will you go and join them?

3、 上述都没有的,在句首请助动词Do/Does/Did帮忙,剩下的照抄,动词要还原。(some 改成any,I改成you,my改成your,)句号改成问号。 注意:句首的第一个字母要大写,句尾标点应为“?”例如:(1) They often play basketball on Sundays. →Do they often play basketball on Sundays? (2)She reads English every morning. →Does she read English every morning?(3) My mother picked a lot of apples last Sunday. → Did your mother pick a lot of apples last Sunday?

4、 就一般疑问句回答

一般疑问句有两种回答,即:肯定回答和否定回答。其中,肯定回答用yes当头回答,否定回答用no当头回答。

三、 肯定句改特殊疑问句(对划线部分提问)的方法 — 四步法

1、根据划线部分确定是什么疑问词。(如what、where、who、whose、how、how many、how old、when 等)

2、接着找be动词或情态动词can,shall, will等放在疑问词后面,若没有则请助动词do/does/did帮忙,写在疑问词后面。请了助动词帮忙,后面的动词要还原成原形。例如:(1)He is under the tree.(对画线部分提问) → Where is he? (2) We can see some birds in the tree. (对画线部分提问) → What can you see in the tree. (3) I like dogs. (对画线部分提问) →

What do you like? ( 请助动词do来帮忙的) (4)He usually gets up at six o’clock . (对画线部分提问) → What time does he usually get up ?(请助动词does来帮忙的) (5)They watched a film in the cinema last night. (对画线部分提问) → Where did they watch a film last night? (请助动词did来帮忙的)

3、把some改成any,my/our改成your, we /I 改成 you

4、句号改成问号。

 

(备注:可能不完全正确,但可以应付小学阶段的英语测试)