1.谓语动词用复数:Both...and... 2.就近原则:neither...nor...,either...or...,not only...but also...(强调后者),there be句型 3.就远原则:as well as ,(together) with , rather than 4.since = now that 主现完从过。 5.too...to... 太……以致于不能 enough...to... 足够……能 so...that... 以致于 6.or 用于否定句 and 用于肯定句以及有两个否定句同时存在的情况 7.prefer……to…… = like …… better than 8.in order to = so as to 9.but与though\although because与so 不能连用。 10.while 一般与进行时和系表结构作搭配,不能用瞬间动词 11.as soon as 作状语从句,时态用主过从过或主将从现。 12.unless = if not (责任编辑:admin) |