状语从句一、考点梳理
考查incase引导的状语从句根据语境的不同,incase既可表示“如果”、“万一”,引导条件状语从句:也可表示“以防(万一)”,引导目的状语从句
【例】Leaveyourkeywithaneighbor____youlockyourselfoutoneday
eversinceB
evenifC
soonafterD
incase【例】Myparentsliveinasmallvillage
Theyalwayskeepcandlesinthehouse__thereisapowercut
unlessC
incaseD
sothat答案为C
incase在此引导目的状语从句,意为“以防”
考查before引导的状语从句尤其要注意“It+be+--段时间+before
【例】ThefieldresearchwilltakeJoanandPaulaboutfivemonths;itwillbealongtime____wemeetthemagain
afterB
beforeC
sinceD
when答案为B
itwillbealongtimebefore
的意思是“要过很久才会……”
【例】Hewastoldthatitwouldbeatleastthreemoremonths____hecouldrecoverandreturntowork
beforeC
sinceD
that答案为Bitwassometimebefore
的意思是“在……之前过了一段时间”,通常可转译为“过了一段时间才……”
又如:ItwasalongtimebeforeIgottosleepagain.过了好久我才又睡着
考查while引导的状语从句尤其要注意while表示“尽管”、“虽然”时的用法(此时