课时作业38
Unit 3 Inventors and inventions
Ⅰ.单项填空
1．(2013·湖北襄樊四中期末考试)A wellwritten composition ________ a good choice of words and clear organization among other things.
A．calls on B．calls for
C．calls up D．calls off
解析：call for 需要。call on 号召，拜访某人；call up 使回忆起；call off 取消。
答案：B
2．(2013·济南外国语学校质检)The man who hit 9 people in a row had drunk so much that his mind could no longer ________ between fantasy and reality.
A．distinguish B．discourage
C．disturb D．disappear
解析：distinguish区分。句意：连续撞了九人的那位男人喝了如此多的酒以致于他的大脑不能再区分虚幻与现实。
答案：A
3．(2013·武汉调研)When it comes to secondhand cars, one has to be as ________ as possible about the s ource and the condition of them.
A．cautious B．patient
C．urgent D．casual
解析：cautious 小心的，谨慎的。句意：当谈及二手车时，你要尽可能对它的来源和状况小心。patient 耐心的；urgent 紧急的；casual 随便的。
