Question

【題目】 【1】 In fact, the idea of walking at least 10,000 steps a day for health goes back decades to a marketing (推銷) campaign (計步器) launched in Japan to promote a pedometer. And, in subsequent years, it was adopted in the US as a goal to promote good health.【2】

“The original basis of the number was not scientifically determined,” says researcher I-Min Lee of Brigham and Women’s Hospital.

She was curious to know how many steps you need to take a day to maintain good health and live a long life, so she and her colleagues designed a study that included about 17,000 older women. Their average age was 72.【3】

It turns out that women who took about 4,000 steps per day got a boost in longevity(長壽), compared with women who took fewer steps.【4】

In fact, women who took 4,400 steps per day, on average, were about 40 percent less likely to die during the follow-up period of about four years compared with women who took 2,700 steps. The findings were published Wednesday in JAMA Internal Medicine.

Another surprise: The benefits of walking maxed out at about 7,500 steps.【5】

A.The women all agreed to clip on wearable devices to track their steps as they went about their day-to-day activities.

B.Walking 10,000 steps a day can make a lot of people happy.

C.It’s nothing unusual to walk 10,000 steps a day.

D.“It was sort of surprising,” Lee says.

E.In other words, women who walked more than 7,500 steps per day saw no additional boost in longevity.

F.There is no direct relationship between life span and steps.

G.It’s often the default setting on fitness trackers, but what’s it really based on?

Answer 1

【答案】

【1】C

【2】G

【3】A

【4】D

【5】E

【解析】

這是一篇說明文。文章主要說明了每天走一萬步被美國采納，作為促進健康的目標，但是研究人員通過研究發(fā)現(xiàn)，每天走四千步的女性更加長壽，而且每天步行超過7500步的女性并不會增加壽命。

【1】

根據(jù)后文In fact, the idea of walking at least 10,000 steps a day for health goes back decades to a marketing (推銷) campaign (計步器) launched in Japan to promote a pedometer.可知事實上，為了健康，每天至少走一萬步的想法可以追溯到幾十年前日本發(fā)起的一項推廣計步器的營銷活動。由此可知，每天走一萬步的想法并沒有什么不尋常，因為日本幾十年前就有了。故C選項“每天走一萬步?jīng)]什么不尋常的”符合上下文語境，故選C。

【2】

根據(jù)下文“The original basis of the number was not scientifically determined,” says researcher I-Min Lee of Brigham and Women’s Hospital.可知布萊根婦女醫(yī)院的研究人員I-Min Lee說:“這個數(shù)字的最初依據(jù)并不是科學確定的�！庇纱丝芍�，本句旨在提出“每天走一萬步的科學依據(jù)是什么”的問題。故G選項“這通常是健身追蹤器的默認設置，但它真正的依據(jù)是什么？”符合上下文語境，故選G。

【3】

根據(jù)上文She was curious to know how many steps you need to take a day to maintain good health and live a long life, so she and her colleagues designed a study that included about 17,000 older women. Their average age was 72.可知她很想知道每天需要走多少步才能保持健康和長壽，所以她和她的同事設計了一項研究，其中包括了大約1.7萬名老年女性。他們的平均年齡是72歲。由此可知，本句承接上文繼續(xù)說明他們的研究過程：他們讓這些女性穿戴上設備來跟蹤他們的日常生活。故A選項“這些女性都同意佩戴可穿戴設備來跟蹤她們?nèi)粘；顒拥牟綉B(tài)”符合上下文語境，故選A。

【4】

根據(jù)上文It turns out that women who took about 4,000 steps per day got a boost in longevity(長壽), compared with women who took fewer steps.可知事實證明，每天走4000步左右的女性比少走4000步的女性更長壽。由此可知，每天走四千步的女性更加長壽，而不是一萬步，這一結果有點令人吃驚。故D選項“這有點令人吃驚，李說”符合上下文語境，故選D。

【5】

根據(jù)上文Another surprise: The benefits of walking maxed out at about 7,500 steps.可知另一個讓人驚訝的是：步行的最大好處約為7500步。由此可知，本句承接上文繼續(xù)解釋說明，“步行的最大好處約為7500步”的意思是“每天步行超過7500步的女性并不會增加壽命”。故E選項“換句話說，每天步行超過7500步的女性并不會增加壽命”符合上下文語境，故選E。