[题目] You already know many things that can reduce your chances of getting various types of cancer. Avoiding tobacco (烟草) products is an important thing, but have you ever considered your choice of din 题目和参考答案——青夏教育精英家教网—

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【题目】 You already know many things that can reduce your chances of getting various types of cancer. Avoiding tobacco (烟草) products is an important thing, but have you ever considered your choice of dinner time as a reason for your risk of cancer? Probably not, but new research suggests that you might want to consider it.

A new study published in the International Journal of Cancer draws some very interesting connection between people’s time for dinner and their risk (风险) of developing certain types of cancers, including breast and prostate (前列腺) cancer, which are two of the largest killers of men and women.

“Modern life often means mistimed sleeping and eating that are connected with poor health effects in experimental studies,” the researchers explain. The research mainly focuses on how long before bedtime a person eats their last meal of the day. People who eat before 9 p. m or eat at least n couple of hours before hitting the sack have lower risks of developing cancers. The scientists find that these people enjoy a 20% drop in cancer risk when compared to those who eat dinner after 10 p.m. or eat right before climbing into bed.

The researchers followed the habits of thousands of people and tracked their nighttime eating habits and whether or not they developed cancer over the long term. The numbers seem to point towards early dinners being a very beneficial thing if you’re hoping to avoid some of the more common types of cancer, but the scientists still don’t know exactly why that’s true. At the moment they believe circadian rhythm (生物钟) is playing a role, though they can’t say exactly how.

【1】Why are tobacco products mentioned (提到) in Paragraph 1?

A.To introduce the topic.

B.To make comparisons.

C.To advertise some products.

D.To show the harm of smoking.

【2】What does the underlined part “hitting the sack” in Paragraph 3 mean?

A.Getting up.B.Going to bed.

C.Drinking some soup.D.Taking some medicine.

【3】What can we infer from the last paragraph?

A.The researchers didn’t have long-term research plans.

B.The researchers need further work to improve their study.

C.The researchers have confirmed the way of circadian rhythm works.

D.The researchers have found the real causes of some types of cancer.

【4】What is mainly talked about in the passage?

A.Food and cancer.B.Tobacco and cancer.

C.Sleeping and cancer.D.Dinner time and cancer.

【答案】

【1】A

【2】B

【3】B

【4】D

【解析】

本文是说明文。文章介绍了一项新的研究让人们关注晚餐时间和患癌症风险的关系。研究人员发现与那些在晚上10点后吃晚饭或在睡觉前吃东西的人相比，晚上9点之前吃晚餐或者在至少睡觉前几个小时吃晚餐的人患癌症的风险下降了20%。

【1】推理判断题。第1段中提到“避免烟草产品可以减少患各种癌症的几率”，然后用转折词but转换话题，引出下面的话题“晚餐时间和患癌症风险”。因此作者在第1段中提到“烟草产品”是为了引出文章的话题。故选A 项。

【2】词句猜测题。在第3段中，作者将“People who eat before 9 p. m or eat at least a couple of hours before hitting the sack”和“those who eat dinner after 10 p.m. or eat right before climbing into bed”这两类人进行对比，可以推测“hitting the sack”和“climbing into bed”含义相同。因此“hitting the sack”意为“上床睡觉”。故选B 项。

【3】推理判断题。根据第四段“but the scientists still don’t know exactly why that’s true. …though they can’t say exactly how”，科学家们还不能准确地知道为什么早吃晚餐对身体有益，也不能准确地说明生物钟是如何发挥作用的。因此可以推测，研究者们还需要作出进一步的研究。故选B项。

【4】主旨大意题。文章介绍了一项新的研究引起人们关注晚餐时间和患癌症风险的关系。第一段 “have you ever considered your choice of dinner time as a reason for your risk of cancer？”就是该研究要探究的话题。因此文章是关于晚餐时间和患癌症风险之间的关系。故选D项。

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增加：在缺词处加一个漏字符号（∧），并在下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：

1.每处错误及其修改均仅限一词；

2.只允许修改10处，多者（从第11处起）不计分。

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