初中英语时态总结ppt.ppt

时态复****br/>Revision of tense
一般现在时
一般过去时
现在进行时
一般将来时
现在完成时
一般现在时态
Ⅰ一般现在时态的陈述句
概念:一般现在时态表示的是经常反复发生的动作或存在的状态。
eg: I am a teacher .
You are a worker.
She/He is a student .
We/You/They are students.
的用法:
I用 am, you用are, is用于他(he)、她(she) 、它(it),复数(we,you,they)全部都用are
1、一般动词,在词尾加 s ; 如:
work--works, live--lives, play--plays, sing-- sings.
eg: She lives in Ningbo. 她住在宁波。
2、以s/x/sh/ch/o 等字母结尾的动词,词尾加-es ,
teach------ teaches, wash----- washes.
eg: My mother washes the coat. 我母亲洗了大衣。
行为动词do一般现在时第三人称单数(he,she,it) 的构成规则:
: DO 和DOES
II 一般现在时的否定式
动词的否定式: be + not
I am a teacher.
You are a worker
She is a doctor
We are friends.
I’m not a teacher
You aren’t a worker
She isn’t a doctor.
We aren’t friends.
is not=isn’t
are not=aren’t
否定句
2.(do)当主语是单数第三人称时,它与助动词DOES有关,但是动词谓语一定要恢复为原形。当主语是其他人称时,它与助动词DO有关。
I like English.
She likes it very much.
We go to work by bike.
I don’t like English.
She doesn’t like it very much.
We don’t go to work by bike.
否定句
概念:用 yes 或 no 来回答的疑问句叫做一般疑问句。
一般疑问句句首的第一个词一般读得比较重。
III一般疑问句
I am a teacher. Are you a teacher?
You are a worker. Are you a worker?
He is a student. Is he a student?
We are friends. Are you friends?
动词,疑问句要求把BE 提前,第一人称的单数和复数(I/WE),第一变成第二人称。
疑问句
,疑问句要求是:当主语是他(he),她(she),它(it)时,句子前面加DOES,并把动词恢复原形;当主语是其他人称时,句前加DO ,第一人称(I/we)换第二人称(you)。
I often go there.
You like the music.
He goes to work by bus .
We /You/They like it.
Do you often go there ?
Do you like the music?
Does he go to work by bus ?
Do you/they like it?
Ⅳ. 特殊疑问句
特殊疑问句在考试中涉及得比较多,主要以选择和转换句型为主,首先要掌握一些常用疑问词的意思如:what(什么),when, what time(什么时间), who(谁), where(在哪里), why(为什么), how(怎样), how many+可数名词的复数(多少), how long(多长时间), how often(多久一次) 等,其次掌握它的语序,即就是特殊疑问词+一般疑问句语序(Who)除外