题目内容
1.The oddness of life in space never quite goes away.Here are some examples.First consider something as simple as sleep.Its position presents its ownchallenges.The main question is whether you want your arms inside or outside the sleeping bag.If you leave your arms out,they float free in zero gravity,often giving a sleeping astronaut the look of a funny ballet (芭蕾) dancer."I'm an inside guy,"Mike Hopkins says,who returned from a six-month tour on the International Space Station."I like to be wrapped up."
On the station,the ordinary becomes strange.The exercise bike for the American astronaut has no handlebars.It also has no sear.With no gravity,it's just as easy to pedal violently.You can watch a movie while you pedal by floating a microcomputer anywhere you want.Without gravity to help circulate air,the carbon dioxide you exhale(呼气)has a tendency to form an invisible(隐形的)cloud around your head.You can end up with whatastronauts call a carbon-dioxide headache.
Leroy Chiao,54,an American retiredastronaut after four flights,describes what happens even before you float out of your seat."Your inner ear thinks you're falling.Meanwhile your eyes are telling you you're standing straight.That can be annoying-that's why some people feel sick."Within a couple of days-truly terrible days for some-astronauts'brains learn to ignore the panicky signals from the inner ear,and space sickness disappears.
Space travel can be so delightful but at the same time invisibly dangerous.For instance,astronauts lose bone mass.That's why exercise is considered so vital that National Aeronautics and Space Administration(NASA) puts in right on the workdayschedule.The focus on fitness is as much about science and the future as it is about keeping any individualastronaut healthy.NASA is worried about two things:recovery time once astronauts return home,and,more importantly,how to maintainstrength and fitness for the two and a half years or more that it would take to make a round-trip to Mars.
63.What is the major challenge to astronauts when they sleep in space?A
A.Deciding on a proper sleep position.
B.Choosing a comfortable sleeping bag.
C.Seeking a way to fall asleep quickly.
D.Finding a right time to go to sleep.
64.The astronauts will suffer from a carbon-dioxide headache whenC?
A.they circle around on their bikes
B.they use microcomputers without a stop
C.Theyexercise in one place for a long time
D.they watch a movie while pedaling
65.Some astronauts feel sick on the station during the first few days becauseD?
A.their senses stop working
B.they have to stand up straight
C.they float out of their seats unexpectedly
D.their brains receive contradictory messages
66.One of NASA's major concerns about astronauts isB.
A.how much exercise they do on the station
B.how they can remain healthy for long in space
C.whether they can recover after returning home
D.whether they are able to go back to the station.
分析 本文是说明文,本文通过举例说明了太空生活的奇妙,在太空睡觉时,对宇航员来说主要的挑战在于恰当的睡眠姿势;宇航员在一个地方运动久了会出现碳毒性头痛,宇航员的大脑接收到矛盾的信息时会感到恶心.最后告诉我们美国国家宇航局对宇航员主要的担心是宇航员回家后的修养期和任何在太空长久地保持健康.
解答 63.A 细节理解题.根据第二段第一、二句"First consider something as simple as sleep.Its position presents itsown challenges."可知在太空睡觉时,对宇航员来说主要的挑战在于恰当的睡眠姿势.故选A项.
64.C 细节理解题.根据第三段中"But station residents have to be careful aboutstaying in one place too long.…You can end up with what astronauts call acarbon-dioxide headache"可知宇航员在一个地方运动久了会出现碳毒性头痛.故选C项.
65.D 细节理解题.根据第四段中"Your inner ear thinks you're failing.Meanwhileyour eyes are telling you you're standing straight.That can be annoying-that'swhy some people feel sick."可知宇航员在大脑接收到矛盾的信息时会感到恶心.故选D项.
66.B 细节理解题.根据最后一段倒数第一、二句"The focus on fitness is as much about science andthe future as is about keeping any individual astronaut healthy…NASA is worriedabout two things:…and,more importantly,how maintain strength and fitness…"可知美国国家宇航局对宇航员主要的担心之一是如何在太空长久地保持健康.故选B项.
点评 解答细节理解题时,一个常用的方法就是运用定位法,即根据题干和选项中的关键词从原文中找到相关的句子,与选项进行比较从而确定答案;推理判断题既要求学生透过文章表面文字信息推测文章隐含意思,又要求学生对作者的态度、意图及文章细节的发展作正确的推理判断,力求从作者的角度去考虑,不要固守自己的看法或观点.
A. | effect | B. | evident | C. | female | D. | flexible |
Music has always been a great love of mine and,in my 20s,when my(21)sickness was more manageable,I (22)enjoyed ten years as a professional singer in restaurants,playing and singing folk songs.(23)Unfortunatelythat was years ago and times have changed.(24)Now I live with mother on a country farm.
Two years ago,I decided that I would need to have some kind of extra work to (25)makeupfor my disability pension (残疾抚恤金).(26)As I needed to sleep in the afternoons,I was limited in my(27)choices.I decided that I would consider(28)goingback to singing in restaurants.
My family are all musicians,so I was(29)recognized when I went into our local music store.I explained that I wanted to sing again but using recorded karaoke music.I knew that discs were very expensive and I really didn't have a lot of (30)money to get started.And(31)oftenyou find only three to four songs out of ten on a disc that you can (32)actuallyuse.
When I told the owner of the shop about my(33)idea; he gave me a long thoughtful(34)look."This means a lot to you,doesn't it?"he said."Come with me."
He led me (35)through the crowded shop and to a bench with a large professional karaoke box on it.He placed his large hand (36)lovingly on his treasure and said,"I have 800karaoke songs in here.You can take your (37)pick and I'll record them for you.That should get you started."
I(38)couldhavecried.Thanking him,I made a time with him to listen to all the songs and choose(39)theones that I could sing.I have come full circle with his help.
Hiskindness still warms my heart and makes me do just that bit extra,when I have the chance.
21.A.loneliness | B.sadness | C.tiredness | D.sickness |
22.A.set | B.enjoyed | C.kept | D.shared |
23.A.Gladly | B.Eventually | C.Unfortunately | D.Surprisingly |
24.A.Now | B.Then | C.Sometime | D.Meanwhile |
25.A.add up to | B.make up for | C.get rid of | D.take advantage of |
26.A.If | B.As | C.Though | D.Before |
27.A.movement | B.condition | C.choices | D.positions |
28.A.reaching out | B.living up | C.getting on | D.going back |
29.A.recognized | B.interviewed | C.found | D.invited |
30.A.money | B.time | C.energy | D.knowledge |
31.A.thus | B.once | C.seldom | D.often |
32.A.actually | B.hardly | C.nearly | D.formerly |
33.A.job | B.family | C.idea | D.offer |
34.A.face | B.view | C.look | D.sight |
35.A.over | B.along | C.towards | D.through |
36.A.unhappily | B.lovingly | C.pitifully | D.gratefully |
37.A.pick | B.turn | C.role | D.step |
38.A.had to cry | B.ought to cry | C.should have cried | D.could have cried |
39.A.more | B.the ones | C.few | D.the rest |
40.A.courage | B.devotion | C.kindness | D.trust. |
A. | hold on to | B. | cut off | C. | make up for | D. | take up |
Travelers have traditionally fought this(30)problemwith sleeping pills or alcohol.There are actually healthier ways that can work just as (31)effectively.
For example,the moment you get on the airplane,start (32)adjustingyour biological block to the destination's time.If it's daytime in your destination,try to stay(33)awake.Walking around the cabin(客舱) can be of help.When it's nighttime,try to sleep.In that case,eat before the flight,(34)oran empty stomach will prevent you from sleeping.These tips will help you start a new (35)cycleof sleep and wakefulness.
28.A.flight | B.change | C.demand | D.climate |
29.A.suffering from | B.working on | C.looking into | D.leading to |
30.A.danger | B.problem | C.waste | D.fear |
31.A.briefly | B.slowly | C.suddenly | D.effectively |
32.A.checking | B.sending | C.adjusting | D.stopping |
33.A.awake | B.alone | C.hungry | D.calm |
34.A.though | B.so | C.whole | D.or |
35.A.understanding | B.cycle | C.research | D.trend. |