精选优质文档-倾情为你奉上英语基本句型句型1 定语从句中缺主语,修饰人时用who /that,修饰物时用which /that引导。如:2 从句中缺宾语,修饰人时用 who /whom /that或省略;修饰物时用which /that或省略引导词3 从句中缺时间状语,用when或介词+which引导4 从句中缺地点状语,用where或介词+which引导5 从句中缺原因状语或先行词是 reason时,引导词用why /for which / that6 从句中缺定语,人和物都用 whose引导7 当先行词是way时,其定语从句的引导词用in which /that。引导词as可引导限制性定语从句,也可引导非限制性定语从句。1 当先行词是整个主句时,可用 as /which引导非限制性定语从句。引导词as和which的区别在于as引导的非限制性定语从句可放于主句前、主句中、主句后,而which引导的非限制性定语从句一般放于主句后或句中。as常与从句中的know,see, hear,expect等动词连用