2017年职称英语考试卫生类语法复习:介词短语
2016-04-26 14:59 来源:医学教育网
介词短语即可以做表语也可以做定语,虽然它们词性相同,但由于词序不同,它们所起到的作用也不同,当在is的后面是表语,跟在名词的后面它就起到定语的作用。
本课要求:
1、 牢记第一个句型的旗帜—— be
(1) 人称变化
(2) 肯定否定及疑问的变化
(3) You (They We ) He ( She ) I
be 的人称变化
You (They We ) are teachers.
He ( She ) is a teacher.
I am a teacher
Be的肯定否定及疑问的变化
You (They We ) are teachers.
He ( She ) is a teacher.
I am a teacher
You (They We ) are not teachers.
He ( She ) is not a teacher.
I am not a teacher
Are you (They We ) teachers?
Is he ( She ) a teacher?
Am I a teacher?
2、 介词介词短语的作用
本课需记忆的介词(认识就行) in in front of on from
near of
3、 介词短语的作用
(1) 表语,位置在 be 之后:
The man is in the classroom on the second floor.
(2) 定语,名词之后:
The man is in the classroom on the second floor.
4、 本课目的——牢牢抓住 —— 主系表
考试时减少查字典的次数,抓主句子的中心
The man in the classroom on the second floor is not
a teacher from England.
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