5.The human body is designed to move.But modern lifestyles and office jobs rarely give us the chance to move around.As we know,we're while we're eating; we sit in the car and we sit while we watch TV.And many of us sit for many hours at work.
New research shows that sitting less than three hours a day might extend your life by two years.Peter Katzmarzyk,a scientist at the University of Louisiana in the southern United States,says that sitting is ubiquitous in our lives,meaning it is something we do all the time,everywhere.
However,Mr.Katzmarzyk says that does not mean you can sit for the rest of your waking hours.He also says you may exercise often,"We can't throw away physical activity.It's extremely important.We have 60years of research showing us that."
Mr.Katzmarzyk and his colleagues are part of a new generation of researchers studying how sitting all day affects length of life."Studies that have assessed the relationship between sitting and mortality(死亡率)or television viewing and mortality are very rare.There's only been a few of them,actually five or six now,in the last four or five years."They found that cutting television time to less than two hours a day could add one-point four years to life.
Luckily,change is already coming to some offices,especially in the design of desks.A"standing desk"lets people stand while they work.Another new design is called the"treadmill desk."A treadmill is an exercise machine that lets you walk in one place.Even some U.S.schools are beginning to experiment with desks that are part bicycle to keep children moving.That's one of the strategies that many companies are using now.
Mr.Katzmarzyk also says studying this problem has inspired his team to make a few changes in their own lives.
28.The underlined word"ubiquitous"is closest in meaning toD.
A.dangerous
B.a(chǎn)wkward
C.comfortable
D.common
29.Which view agrees with the opinion of Mr.Katzmarzyk?B
A.Sitting too long may help increase one's life.
B.Exercise is important and don't sit too long.
C.Watching TV is bad,but can broaden one's horizons.
D.Stopping watching TV is a necessary but hard task.
30.What does Mr.Katzmarzyk think of his study in Paragraph 4?A
A.It's a relatively new area of study.
B.It's a hot subject studied by experts.
C.It's a study that begins too late.
D.It's not ignored by many experts.
31.Why are the desks of all kinds designed for those who sit more?C
A.To give them more comfort.
B.To improve their work efficiency.
C.To offer them the chance to exercise.
D.To seek pleasure while working.
分析 本文是一篇科教類閱讀,屬于科普文.文章主要講述了坐著的壞處,以及給了讀者如何減少坐著時(shí)間的幾點(diǎn)建議,告知讀者坐的越少活得越久,少坐可以延長(zhǎng)我們的生命.
解答 28.D.詞義猜測(cè)題.根據(jù)畫線單詞后的內(nèi)容it is something we do all the time,everywhere知我們隨時(shí)隨地都坐著,因此ubiquitous的意思是"常見的",故最佳答案為D.
29.B.細(xì)節(jié)理解題.根據(jù)第三段中的We can't throw away physical activity.It's extremely important.(我們不能扔掉體育活動(dòng).它非常重要.)知選項(xiàng)B(鍛煉很重要,不能長(zhǎng)時(shí)間坐著)意思是一致的,故最佳答案為B.
30.A.推理判斷題.根據(jù)第四段中的There's only been a few of them,actually five or six now,in the last four or five years知他的研究是相對(duì)較新的,故最佳答案為A.
31.C.推理判斷題.根據(jù)倒數(shù)第二段中的內(nèi)容,辦公桌的設(shè)計(jì)已經(jīng)發(fā)生變化了,其目的是要久坐的人多運(yùn)動(dòng),故最佳答案為C.
點(diǎn)評(píng) 考查學(xué)生的細(xì)節(jié)理解和推理判斷能力.做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確選擇.在做推理判斷題時(shí)不要以個(gè)人的主觀想象代替文章的事實(shí),要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷.