2017年職稱英語考試衛(wèi)生類語法復(fù)習(xí)：介詞短語

介詞短語即可以做表語也可以做定語，雖然它們詞性相同，但由于詞序不同，它們所起到的作用也不同，當(dāng)在is的后面是表語,跟在名詞的后面它就起到定語的作用。
    本課要求：
    1、 牢記第一個句型的旗幟----- be
    (1) 人稱變化
    (2) 肯定否定及疑問的變化
    (3) You (They We ) He ( She ) I
    be 的人稱變化
    You (They We ) are teachers.
    He ( She ) is a teacher.
    I am a teacher
    Be的肯定否定及疑問的變化
    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、 介詞介詞短語的作用
    本課需記憶的介詞(認(rèn)識就行) in in front of on from
    near of
    3、 介詞短語的作用
    (1) 表語,位置在 be 之后：
    The man is in the classroom on the second floor.
    (2) 定語，名詞之后：
    The man is in the classroom on the second floor.
    4、 本課目的-----牢牢抓住 ------- 主系表
    考試時減少查字典的次數(shù)，抓主句子的中心
    The man in the classroom on the second floor is not
    a teacher from England.