as在此引导定语从句,修饰后面整个句子,此时,定语从句的位置比较灵活,可放在句首、句中或句末,译为“正如,正像”。
①(2011·陕西卷)As is known to all,the People’s Republic of China is the biggest developing country in the world.
众所周知,中华人民共和国是世界上最大的发展中国家。
②(2017·浙江绍兴考前适应性检测)A good many proposals were raised in the meeting,as_was__expected.
正如所预料的一样,在会议上提出了许多好建议。
辨析:as与which引导定语从句
(1)as引导的从句可置于句前,而which则不能。
(2)as引导的从句,有“正如……”之意,而which则没有。
(3)当先行词被so,such,the same(指同样的两个,若指同一个,关系词则用that)所修饰,或such,the same本身就是先行词时,关系代词用as,不用which。
(4)当as在从句中作主语时,后面常接实义动词的被动式,如果从句中的实义动词是主动式,一般用which作主语。
③After graduating from college,I took some time off to go travelling,which turned out to be a wise decision.大学毕业后,他花费一段时间旅游,结果成为一个明智的决定。
④He forgot to bring his pen with him,as was often the case.
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