【題目】 You already know many things that can reduce your chances of getting various types of cancer. Avoiding tobacco (煙草) 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 (風(fēng)險) 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 (生物鐘) 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】

本文是說明文。文章介紹了一項(xiàng)新的研究讓人們關(guān)注晚餐時間和患癌癥風(fēng)險的關(guān)系。研究人員發(fā)現(xiàn)與那些在晚上10點(diǎn)后吃晚飯或在睡覺前吃東西的人相比，晚上9點(diǎn)之前吃晚餐或者在至少睡覺前幾個小時吃晚餐的人患癌癥的風(fēng)險下降了20%。

【1】推理判斷題。第1段中提到“避免煙草產(chǎn)品可以減少患各種癌癥的幾率”，然后用轉(zhuǎn)折詞but轉(zhuǎn)換話題，引出下面的話題“晚餐時間和患癌癥風(fēng)險”。因此作者在第1段中提到“煙草產(chǎn)品”是為了引出文章的話題。故選A 項(xiàng)。

【2】詞句猜測題。在第3段中，作者將“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”這兩類人進(jìn)行對比，可以推測“hitting the sack”和“climbing into bed”含義相同。因此“hitting the sack”意為“上床睡覺”。故選B 項(xiàng)。

【3】推理判斷題。根據(jù)第四段“but the scientists still don’t know exactly why that’s true. …though they can’t say exactly how”，科學(xué)家們還不能準(zhǔn)確地知道為什么早吃晚餐對身體有益，也不能準(zhǔn)確地說明生物鐘是如何發(fā)揮作用的。因此可以推測，研究者們還需要作出進(jìn)一步的研究。故選B項(xiàng)。

【4】主旨大意題。文章介紹了一項(xiàng)新的研究引起人們關(guān)注晚餐時間和患癌癥風(fēng)險的關(guān)系。第一段 “have you ever considered your choice of dinner time as a reason for your risk of cancer？”就是該研究要探究的話題。因此文章是關(guān)于晚餐時間和患癌癥風(fēng)險之間的關(guān)系。故選D項(xiàng)。

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