高中英语必修一 unit1 知识点总结.doc第一课时
定语从句分为限制性定语从句和非限制性定语从句。前者起限定作用,去掉 则句子不完整,例:I visited the school where I 作用,去掉句子依然完整,例:His mother , who loves him very much , is strict with him.
限制性定语从句:
关系代词有:who, whom, whose, that, which 等。关系副词有:when, where, why 等。
that即可代表事物也可代表人,which代表事物;它们在从句中作主语或宾 语,that在从句中作宾语时常可省略关系词,which在从句中作宾语则不能省略。 而且,如果which在从句中作“不及物动词+介词”的介词的宾语,注意介词不 要丢掉,而且介词总是放在关系代词which的前边,但有的则放在它原来的位置
which作宾语时,根据先行词与定语从句之间的语义关系,先行词与which 之间的介词不能丢
代表物时多用which,但在带有下列词的句子中用that而不用which,这些 词包括all, anything, much等,这时的that常被省略
who和whom引导的从句用来修饰人,分别作从句中的主语和宾语,whom作宾 语时,要注意它可以作动词的宾语也可以作介词的宾语
where是关系副词,用来表示地点的定语从句,当先行词为
point/case/activity/sport/business 时可能用其弓|导
when引导定语从句表示时间
〔注〕值得一提的是,表示时间“time"—词的定语从句只用when引导,有时不 用任何关系代词,当然也不用that引导
By the time you arrive in London, we will have stayed there for two weeks.
I still remember the first time I met her.
Each time he goes to besiness trip, he brings a lot of living necessities, such as towers, soap, toothbrush etc.
whose是关系代词,修饰名词作定语,相当于所修饰成分的前置所有格
&只能用that的情况:
当先行词被the only, the very, the same等修饰时;
当先行词是不定代词时,如:
all, few, little, no, any, much, every, something, angthing, everything 等;
当人和物同时作先行词时;
当先行词被序数词或形容词的最高级修饰时;
在问句以who/which/that开头的句中。
"one of+可数名词复数''引导的定语从句中,谓语动词应用复数;而"one of +可数名词复数"前有the, only或the only修饰,定语从句中的谓语动词用单 数。
He is one of the students who study very hard at school・
He is the(only/the only)
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