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人教2003课标版《Using LanguageⅠ》集体备课PPT课件优质课下载
先行词是序数词、形容词最高级或被序数词或形容词最高级修饰时
先行词既有人又有物时
引导非限制性定语从句时
关系代词指物，且前有介词时
as引导非限制性定语从句，可放在主句前、中、后，as常译为“正如……，正像……”。as is known to all; as we all know; as is often the case; as the saying goes; as we have expected……
which引导非限制性定语从句修饰前面整个句子时，只能置于主句后，常译为“这一点，这件事”等
as
I have the same watch as you lost yesterday.
I have the same watch that you lost yesterday.
“介词＋关系代词”引导定语从句时，介词的宾语只能用which或whom，
且不能省略。
which
whom
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