定语从句是大伙儿十分了解的一种从句,在考試中能够说成无所不在。说到定语从句的关系代词,大伙儿毫无疑问会异口同声地喊出来“that”“which”“who”……今日我们要讲下as、but和than这三个独特的关系代词。
As、but和than一般 全是以代词、连词等真实身份被大伙儿所熟识,而他们竟然能够摇身一变变成关系代词,在定语从句中做主语和宾语。 As
As最基础的使用方法是做连词“与……一样”表明平级的较为,代词“做为”。下边是它独特的使用方法,词组:
1. He does not possess such qualifications as are necessary to be an actor.
他并不具有一名知名演员需有的资质。
2. She bought the same skirt as I had bought last week so I need to talk to her about it so we don't wear them at the same time.
她买的哪条长裙与我上星期买的一模一样,我想和她商量一下,以防“撞脸”。
上边2个词组中定语从句都应用了as做为关系代词,我们可以发觉词组1中带有“such…as…”,词组2中带有“the same…as…”,不难看出,大家究竟需不需要应用as来做关系代词,能够依据句中是不是出現了与as配搭的语句开展分辨。
3. The murderer who had killed several people on the campus was finally arrested by the police, as was expected.
如大家得偿所愿,哪个在校园内残害数人的凶犯总算被警察拘捕。
该句中仍未出現与as配搭的语句,这里的使用方法是as做关系代词代指前边全部语句,在定语从句中做主语。 But 大伙儿了解的but基础全是以转折点连词的真实身份出現,可是它还做兼职在做定语从句中的关系代词。
词组:
1. There is no man but errs.
沒有所有人可以不做错事。
句中的先行词是man,but当然就当做了关系代词的人物角色,但大家从句意中能够发觉,but含有一层否认的含意,等同于“who not”。那麼我们可以把词组变换为:
There is no man who does not err.
但要留意,仅有在but 前有先行词的情况下才有此使用方法!请较为下边这一词组:
He did nothing after graduation but spend his parents' money.
他大学毕业以后浑浑噩噩,就了解花父母的钱。
该句中but是介词的用法,有转折点的实际意义。 Than 即能够做连词还可以做代词的than全是较为的含意,它竟然还可以用在定语从句中。
词组:
1. Parents had better not give kids more money than is necessary.
爸爸妈妈**是别给小朋友们过多的钱,足够就可以了。
2. Don't order more food than can be finished.
别点过多吃的,会吃剩的。
这里Than以主语的方式出現在定语从句中,实际上省去了what,than也就相当于than what。词组还可以创作:Parents had better not give kids more money than what is necessary.
词组2则能够变换为:Don't order more food than what can be finished
无论是做代词、连词也罢,在定语从句里做关系代词也好,than都表明了一个较为的关联,从所述2个词组看来,句上都出現了比较级的方式。