2019年mpacc考试英语真题——连词642

01}They kept trying _____ they must have known it was hopeless.

A.if

B.because

C.when

D.where

解析：when在此的意思不是“当……的时候”，而是“尽管”、“虽然”的意思。又如：He walks when he might take a taxi.尽管他可以坐出租车，但他却走路。He stopped trying when he might have succeeded next time.尽管他本来下次就可以成功的了，但他却停止努力了。
【标签】熟词生义
本题选C。
{02}_____the stress of examinnation is over, we can all relax.

A.When

B.Even if

C.for

D.Now that

解析：考查连词的辨析。now that 意为“既然”；when 引导时间状语表当---得时候。for表示推断的原因，不能放与句首；even though“尽管”，语义不符合后句。
本题选D。