Module 2 A Job Worth Doing
I. 单项填空
1．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 [句意为：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。effect影响；result结果；account叙述，账目；cause原因，事业。根据句意及on可知此处为effect。]
2．—A hard sleeper to Beidaihe tomorrow.
—Sorry, sir.Only the hard seat is ________at the moment.
A．usable B．suitable
C．available D．comfortable
答案 C [考查形容词辨析。句意：“一张明天到北戴河的硬卧。”“对不起，先生，我们现在只有硬座了。”available“可获得的”，符合题意。usable“能用的”；suitable“合适的”；comfortable“舒适的”，均不符合题意。]
3．I never thought of it before，________all that cleaners had done for us for granted.From now on, I'll________their hard work.
A．taking；respect B．making；appreciate
C．took；thank D．took；grateful
