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-Do you know_______ second-hand smoke? -...

-Do you know_______ second-hand smoke?

-To protect our health and memory.

A. how we should prevent        B. why should we prevent

C. why we should prevent        D. how should we prevent

 

C 【解析】 试题分析:句意:--你知道我们为什么要阻止二手烟吗?--为了保护我们的健康和记忆。分析:考查宾语从句的用法,从句要用陈述语序,因此第一项、第三项符合,通过答语体现对原因进行提问,因此第三项正确。故选C 考点:考查宾语从句的用法。  
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阅读理解

Different weather makes people feel different. It influences health, intelligence and feelings. In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month. In the Northwest and the Middle West, it is very hot at some times and very cold at other times. People in these states have some heart trouble after the weather changes in February or March.

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完形填空

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