be動(dòng)詞、助動(dòng)詞及四種基本句式ppt課件

1、Grammar,語(yǔ)法專(zhuān)題（一,be動(dòng)詞 與 助動(dòng)詞,四種基本句式,判斷句 陳述句 否定句 疑問(wèn)句,一）be動(dòng)詞與助動(dòng)詞,1）be動(dòng)詞：表示“是”的意思。 am is are,第一人稱(chēng)：I amIm 第二人稱(chēng)：you are youre 第三人稱(chēng)：she/he is is not= isnt they aretheyre,注意：第二人稱(chēng)you后面始終跟are，其單復(fù)數(shù)（“你”還是“你們”要根據(jù)后面的名詞判斷） You are a student. You are students,2）助動(dòng)詞。 定義：協(xié)助主要?jiǎng)釉~構(gòu)成謂語(yǔ)動(dòng)詞詞組的詞叫助動(dòng)詞 。助動(dòng)詞自身沒(méi)有詞義,do does would,do

2、 not= dont does not= doesnt would not=wouldnt,What would you like for lunch? I would like chicken for lunch. =Id like chicken for lunch,如：Do you like it? Does he like it? I do not like it. He does not like it. = I dont like it. =He doesnt like it,問(wèn)：老師說(shuō)助動(dòng)詞是其它動(dòng)詞的小助手，自己沒(méi)有詞義，那么 I do homework. 里面“do”不是“做

3、”的意思嗎,答：I do homework. 里面的“do”的確是“做”的意思 在這里，它不是助動(dòng)詞，而是 “實(shí)義動(dòng)詞”，就是有實(shí)際意義 的動(dòng)詞,請(qǐng)判斷下面動(dòng)詞是助動(dòng)詞還是實(shí)義動(dòng)詞,I have potatoes for lunch. I do homework on Sunday. He doesnt like fish. What do you do on Friday,二）四種基本句式,I am a girl. 我是一個(gè)女生。 He is smart. 他很聰明。 Its tasty! 它可好吃了,1）判斷句：什么是什么，什么怎么樣,I read a book. 我在看書(shū)。 I have

4、 6 teachers. 我有6個(gè)老師。 He goes to school. 他去上學(xué)。 A dog eats bread.有只狗在吃面包,2）陳述句：誰(shuí)干什么，誰(shuí)有什么,3）否定句：含有“not”的句子，表示“不”，“沒(méi),He is not a teacher. 他不是老師。 She isnt tall. 她不高。 I dont know. 我不知道。 Lucy does not have lunch.露西沒(méi)吃中飯。 Mike doesnt like math.邁克不喜歡數(shù)學(xué),4）疑問(wèn)句：“嗎？”，“呢,一般疑問(wèn)句：把be動(dòng)詞或者助動(dòng)詞（do/does）提前,Am I a good tea

5、cher?我是一個(gè)好老師嗎？ Is he funny?他幽默嗎？ Do you like music?你喜歡音樂(lè)嗎？ Does she have a ruler?她有尺子嗎,特殊疑問(wèn)句：含有疑問(wèn)詞的問(wèn)句,疑問(wèn)詞：What When Why Who Where How,5W.H,What：什么 What do you have on Monday？ When：什么時(shí)候 When do you have computer class,Why：為什么 Why do you like ice-cream？ Who:誰(shuí) Whos your mother? Where: 哪里 Where do you g

6、o？ How：怎樣 How is your Chinese teacher,5）句式轉(zhuǎn)換,判斷句,陳述句,否定句,否定句,疑問(wèn)句,疑問(wèn)句,判斷句變否定句： Helen is a beautiful girl. Helen is not a beautiful girl. Jim is thin. Jim isnt thin. 判斷句變疑問(wèn)句： Is Helen a beautiful girl? Is Jim thin,陳述句變否定句： I like apples. I dont like apples. He plays computer game. He doesnt play compu

7、ter game. 陳述句變一般疑問(wèn)句： Do you like apples? Does he play computer game,陳述句變特殊疑問(wèn)句： a. He has art on Wednesday. 有什么課： What do you have on Wednesday？ 什么時(shí)候有美術(shù)課： When does he have art,b. Jim is my good friend. 誰(shuí)： Who is your good friend？ c. I like bananas. They are tasty！ 為什么： Why do you like bananas？ d. He goes to scho