如题所述
是prevent…from 句型We must prevent pollution ____ happily.A.to live B.from livingC.living D.on living此题应选A。容易误选B。主要是受prevent…from 的影响。关于prevent sb from doing sth(阻止某人做某事)这一句型,考生要注意:其中的sb 与其后的doing sth 通常有逻辑上的主谓关系:The heavy rain prevented us from going.大雨使我们不能去。(us 与going 有主谓关系)Nothing will prevent me from marrying her.谁也阻止不了我娶她为妻。(me 与marrying her 有主谓关系)上面一题假若选B(from living),那么句中的pollution 应与其后的living happily 有逻辑上的主谓关系,这显然是荒唐的。上题选A,其中的to live happily 为目的状语,全句意为:为了生活愉快,我们必须阻止污染。做以下试题(注意从语境考虑,避开固定句式的影响):1.Use an umbrella to ____ you from the rain.A.stop B.preventC.keep D.protect2.The letter I looked forward to ____ yesterday.A.come B.cameC.coming D.comes3.He was in great need of money,so he ____ $800 for his car.A.paid B.tookC.cost D.spent答案:1.D 2.B 3.B
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