16. What will happen to the children if their parents ________ some day?
A. break out B. break away C. break up D. break off
【答案】C
【解析】break out“爆发”,break away “脱离出去”,break up“破裂,分手”和break off“中断”。根据句意,父母离异应该使用break up。本句意为:如果他们的父母有一天离异,和这些孩子们会怎么样?
17. Under no ________ should you leave this city.
A. conditions B. circumstances C. situations D. environment
【答案】B
【解析】condition意为“条件;情况”,circumstances意为“情况,情形”,situation意为“局面”,environments意为“环境”。under no circumstances固定搭配,意为“绝不,无论如何都不”。本句意为:在任何情况下,你都不应该离开这座城市。
18. The road was wet this morning. It ________ last night
A. must be raining B. By must rain
C. must have rained D. have been rained
【答案】C
【解析】对过去动作做出肯定推测,需要使用must have done形式。本句意为:今天早上路面是湿的,昨晚一定下雨了。
19. ________ I was trying to do is to persuade my brother to give up smoking.
A. That B. Now C. What D. Which
【答案】C
【解析】题干中,________ I was trying to do为主语从句,故从句需一个连接词,排除B. 从句中空格上的连接词做do的宾语,故排除A。CD按句意选what, 本句意为:我正在努力做的事情就是说服我哥哥戒烟。
20. These results must be accurate, because all the calculations have been done by an ________ computer.
A. electric B. electronic C. electrical D. electricity
【答案】B
【解析】选项ABC为形容词,electric意为“带电的,电动的” electric bike电动车;electronic意为“电子的”,如 electronic computer(电子计算机); electronic mail电子邮件;electrical意为“和电相关的”,如 electrical book(电力相关书籍); electricity为名词,意为“电”。本句意为:这些结果一定是准确的,因为所有的计算都是由一台计算机完成的。
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