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(jì)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(zhǎng)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(shuō)明文。文章主要說(shuō)明了每天走一萬(wàn)步被美國(guó)采納，作為促進(jìn)健康的目標(biāo)，但是研究人員通過(guò)研究發(fā)現(xiàn)，每天走四千步的女性更加長(zhǎng)壽，而且每天步行超過(guò)7500步的女性并不會(huì)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(jì)步器) launched in Japan to promote a pedometer.可知事實(shí)上，為了健康，每天至少走一萬(wàn)步的想法可以追溯到幾十年前日本發(fā)起的一項(xiàng)推廣計(jì)步器的營(yíng)銷活動(dòng)。由此可知，每天走一萬(wàn)步的想法并沒(méi)有什么不尋常，因?yàn)槿毡編资�年前就有了。�?/span>C選項(xiàng)“每天走一萬(wàn)步?jīng)]什么不尋常的”符合上下文語(yǔ)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(shuō):“這個(gè)數(shù)字的最初依據(jù)并不是科學(xué)確定的�！庇纱丝芍�，本句旨在提出“每天走一萬(wàn)步的科學(xué)依據(jù)是什么”的問(wèn)題。故G選項(xiàng)“這通常是健身追蹤器的默認(rèn)設(shè)置，但它真正的依據(jù)是什么？”符合上下文語(yǔ)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(zhǎng)壽，所以她和她的同事設(shè)計(jì)了一項(xiàng)研究，其中包括了大約1.7萬(wàn)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(shuō)明他們的研究過(guò)程：他們讓這些女性穿戴上設(shè)備來(lái)跟蹤他們的日常生活。故A選項(xiàng)“這些女性都同意佩戴可穿戴設(shè)備來(lái)跟蹤她們?nèi)粘；顒?dòng)的步態(tài)”符合上下文語(yǔ)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(zhǎng)壽), compared with women who took fewer steps.可知事實(shí)證明，每天走4000步左右的女性比少走4000步的女性更長(zhǎng)壽。由此可知，每天走四千步的女性更加長(zhǎng)壽，而不是一萬(wàn)步，這一結(jié)果有點(diǎn)令人吃驚。故D選項(xiàng)“這有點(diǎn)令人吃驚，李說(shuō)”符合上下文語(yǔ)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(gè)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(shuō)明，“步行的最大好處約為7500步”的意思是“每天步行超過(guò)7500步的女性并不會(huì)增加壽命”。故E選項(xiàng)“換句話說(shuō)，每天步行超過(guò)7500步的女性并不會(huì)增加壽命”符合上下文語(yǔ)境，故選E。