答案　C　[推理判断题。本文客观地介绍了一项正在进行的研究。]

　　2．How can people live longer according to the text?

　　A．Exercise regularly.

　　B．Reduce their diet properly.

　　C．Vary their lifestyles constantly.

　　D．Change their genes completely.

　　答案　B　[推理判断题。本文的主旨大意是饮食和寿命长短的关系。根据第五段中的“They want to find out how the life of a rat can be increased by up to 30 percent simply by reducing its food intake.”及第六段内容可知。]

　　★3.What does the underlined sentence in the last paragraph suggest?

　　A．The research is effort­taking.

　　B．The result of the research is reliable.

　　C．The research has been done for a long time.

　　D．There's a long way to go to put the theory into practice.

　　答案　D　[句意猜测题。画线句子是说，这个研究才开始10年，所以还停留在理论层面，以后的路还很长，所以D项正确。]

　　Passage 3限时：6分钟

　　体裁：记叙文　题材：个人情感类　难度：易词数：286

　　[2016·衡水二中仿真]When I told my father that I was moving to Des Moines, Iowa, he told me about the only time he had been there. It was in the 1930s, when he was an editor of the literary magazine of Southern Methodist University (SMU) in Dallas, Texas. He also worked as a professor at SMU, and there was a girl student in his class who suffered from a serious back disease. She couldn't afford the operation because her family was poor.

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