[题目]For years.scientists have been worried about the of air pollution on the earth's natural conditions. ( )A.effectB.resultC.accountD.cause 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】For years，scientists have been worried about the ________ of air pollution on the earth's natural conditions. （）
A.effect
B.result
C.account
D.cause

【答案】A
【解析】A．effect影响；B．result结果；C．accountt叙述，账目；D．cause原因，事业；句意：许多年来，科学家们一直担心空气污染对地球的自然环境带来的影响。根据句意，故选A。.

练习册系列答案

A. when B. because C. after D. unless

【题目】A proposal has been put forward at a recent video conference _____ measures be taken to raise the citizens’ awareness of traffic safety.

A. that B. as C. when D. which

【题目】—I'm not good at basketball，you know.
—________.We are playing for fun. Just try and you'll see you can.（）
A.Come on
B.All right
C.Take your time
D.It all depends

【题目】________is only when you nearly lose someone that you become fully conscious of how much you value him. （）
A.As
B.This
C.What
D.It

【题目】John was dismissed last week because of his ________attitude towards his job. （）
A.informal
B.casual
C.tough
D.violent

【题目】To make a living，they are willing to ________ many of the disadvantages of city life such as crime，heavy traffic and pollution. （）
A.put up
B.put off
C.put up with
D.put away

【题目】Would you drop in at my house this afternoon if _______?

A. you are convenient

B. it is convenient for you

C. it is convenient of you

D. you will be convenient

【题目】Learn to ______ your knowledge with your experience, and you are sure to succeed.

A.join B. unit C. connect D. combine

试题分类