精英家教网 > 初中英语 > 题目详情
What ________ if there ______ no water or air on the earth?
A.happen, isB.will happen, is
C.will happen, will beD.happen ,are
B

试题分析:句意:如果地球上没有水和空气,将会发生什么?根据句意判断,句子要用一般将来时,water为不可数名词,并且if 引导的状语从句用一般现在时表示将来所以用单数is ,故选B
点评:此考点也是中学英语中最喜欢出现的考点,if除了可以引导条件状语从句外,还可以引导宾语从句,翻译成“是否”。引导宾语从句时没有“主将从现”的说法。除了if外,还有when, as soon as也一样要注意“主将从现”。
练习册系列答案
相关习题

科目:初中英语 来源:不详 题型:单选题

I _______ some schools if I have a lot of money.
A.will buildB.buildC.sell D.will sell

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

If it _____ on May Day, we’ll go to Wenzhou Amusement Park.
A.doesn’t rainB.won’t rainC.didn’t rainD.isn’t raining

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

My dad __________ Singapore for a meeting. He ________ there twice.
A.has gone to, has been to B.has been to, has gone to
C.has gone to, has been D.has been to, has gone

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

What_____ you _____at eight yesterday evening?
A.have, doneB.did, doC.were , doingD.are, doing

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

——I don’t know if she __________ tomorrow.
—— If she _________ tomorrow, I’ll call you.
A.comes; comes B.comes; will come
C.will come; comes D.will come; is coming

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

While Mary ___ a letter, the children were playing outside.
A.wroteB.writesC.is writingD.was writing

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

His brother won’t go to play basketball until his work        .
A.is finishedB.finishes C.will finishD.finish

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

The girl _______ 16 years old next week.
A.is going toB.will beC.beD.was

查看答案和解析>>

同步练习册答案