单项选择
You will catch up with your classmates ______ you work hard.
A.until B. unless C.if D. without
C
—The students of Grade 9 in Changchun have to take part in the P.E. test from 2016.
—Yes.______ you want to pass it and be stronger, practice more.
A. Until B. If C. Unless D. Or
B 点拨:用逻辑分析法。根据句意“……你想通过考试并且变得更强壮,多练习。”判断题空所在句为条件状语从句。if“如果”;unless“除非”。根据句意可知选B。
Your hearing will be badly hurt ______ you always listen to music by earphones.
A.whether B. where C.if
C
There will be less pollution______more people take a bus.
A.but B.though C.unless D.if
D
从方框中选择恰当的单词完成句子
if, unless |
1.You can't improve your spoken English ______ you practice it every
day from now on.
2.There will be fewer cars in the city______ people choose the
subway.
3. Life is like a mirror. ______ you smile at it, it will smile back.
4. I will be very happy ______ you come to my party.2
1. unless 2. if 3. If 4. if
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