本题译文:目前席卷这一地区的暴风雨今后肯定会引起蔬菜短缺。
178. Jack almost fell off the cliff, but managed to _____ until help came.
A. keep on
B. catch on
C. count on
D. hang on
[答案]D. hang on.
[注释]hang on(=hold fast, keep hold)牢牢抓住,抓紧不放:Help! I can't hang on much longer.(救命啊!我支持不住啦。)keep on(doing sth.)继续(做......);catch on 理解;count on 指望,依赖。
本题译文:杰克差点从悬崖上掉下来,但得以抓住不放直到得救。
179. Experts say walking is one of the best ways for a person to _____ healthy.
A. preserve
B. stay
C. maintain
D. reserve
[答案]B. stay.
[注释]preserve, stay, maintain, reserve这4个词均有“保持”,“维持”之意。stay后可接形容词作表语:The weather stayed wet for three days.其他3个词均为及物动词。Preserve(=keep safe from decay, risk, harm, danger, going bad etc.)保存,保护:1)Policemen preserve order in the streets.(警察在街上维持秩序。) 2)We must preserve our natural resources.(我们必须保护自然资源。)3)You paint woodwork to preserve it.(你油漆木制品以防腐烂。)Maintain(=keep up)保持,维持,维修。Reserve(=keep for a special purpose; store)保留,预定:1)I'll reserve my opinion at his time,(这时我将保留我的看法。) 2)I'll phone up today and reserve a room.(我今天将打电话预定一个房间。)
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