ven if D. as
例二 My parents live in a small village. They always keep candles in the house _____ there is a power out.
A. if B. unless
C. in case D. so that
例三He whispered to his wife_______ he might wake up the sleeping baby.
A. so that
B. on condition that
C. for fear that
D. so long as
答案：BCC
④表示让步： though, although, even if，even though，as（让步倒装），while ( 一般用在句首 ), in spite of the fact that, no matter …，whatever, whoever, wherever, whenever, however, whichever等。
例一 We had to wait half an hour ______ we had already booked a table.
A. since B. although
C. until D. before
例二Many of them turned a deaf ear to his advice, _______ they knew it to be valuable.
A. as if B. now that
C. even though D. so that
例三 We won’t give up we should fail 10 times．
A．even if B．since
C．whether D．unti1
例四Your uncle seems to be a good driver ; ______ ,I wouldn’t dare to travel in his car .
A．even so B．even though
C．therefore D．so
例五 ______ happens, we should never lose hope.
A．No matter what
B．no matter whatever
C．What
D．All what
例六 You should try to get a good night’s sleep much work you have to do .
A．however B．no matter
C．although D．whatever
例七He tried his best to solve the problem, _______difficult it was.
A. however B. no matter
C. whatever D although
答案：BCAAAAA
⑤表示方式：as, as if, as though, the way，how等。
例一 It looked ___ it was going to snow.
A. as if B. if
C. as D. whether
例二 We mu
