Human beings have a natural desire to explore the unknown. People with a strong interest in space like to say it is the last place left to explore. But scientists are warning that space exploration for long periods is not going to be easy. They say the human body is not designed to stay in space over an extended period.
The New York Times recently published a report about scientists who are preparing astronauts for a trip to the Moon. The newspaper said the scientists want to make sure that their crews return home in good health. But there are many problems to be solved before people are ready for long trips to the Moon, an asteroid or even the planet Mars.
Humans developed on a planet with a surface that is more than 70 percent water. Our bodies are also about 70 percent water. When there is no gravity that water moves up toward the head, raising pressure in the skull. Arms and legs grow weaker at what is called zero gravity because they no longer need to push against the force of gravity.
Five years ago, astronauts who spent weeks in space reported a change in their eyesight. These astronauts were members of the crew on the International Space Station. Research showed a change in the shape of their eyes. Normally-round eyeballs had become flat during time in space. The research also showed that the right eye was affected more than the left, and that men were more affected than women. Scientists could not find an explanation for the differences.
Bone loss was one of the problems first reported by astronauts returning to Earth after longer stays in space. So scientists designed exercise machines to use on the space station. Tests showed that the exercise equipment helped space travelers keep their bones almost as strong as when they left Earth.
There are other health issues for astronauts who spend a long time in space. They may have problems eating and sleeping. But the biggest health issue is exposure to radiation. On Earth, human beings are protected by the atmosphere and the planet's magnetic field. In outer space, there is no such protection.
小題1:What is the main idea of the passage？
A．Long periods in space will affect the health of astronauts.
B．Scientists are trying to find out how to protect astronauts.
C．Space is dangerous to human beings.
D．People shouldn’t explore space.
小題2:What will happen to human bodies in space？
A．Arms and legs grow stronger at what is called zero gravity
B．Blood moves up toward the head.
C．Pressure in the skull will be raised.
D．All of the above.
小題3:The following are problems mentioned in the passage Except________.
A．bone lossB．loss of waterC．eyesightD．exposure to radiation
小題4:Why did scientists design exercise machines to use on the space station?
A．To make sure that their crews return home in good health.
B．To help astronauts keep their bones almost as strong as when they left Earth.
C．To help astronauts get ready for long trips to the Moon, an asteroid or even the planet Mars.
D．To let astronauts adapt to the environment of space.
小題5:What is true according to the passage?
A．The biggest health issue is exposure to Sunshine.
B．Research showed a change in the size of their eyes.
C．The right eye was affected less than the left.
D．Men were more affected than women.

小題1:A
小題2:C
小題3:B
小題4:B
小題5:D

試題分析：文章介紹的是長(zhǎng)時(shí)間在太空里會(huì)對(duì)宇航員的健康造成危害。具體談?wù)摿擞心切┪：�，是怎么造成的，怎么解決這樣的問(wèn)題。
小題1:主旨題：從第一段的句子：But scientists are warning that space exploration for long periods is not going to be easy. They say the human body is not designed to stay in space over an extended period.可知這篇文章講的是長(zhǎng)時(shí)間在太空里會(huì)對(duì)宇航員的健康造成危害。選A。
小題2:細(xì)節(jié)題：從第三段的句子：When there is no gravity that water moves up toward the head, raising pressure in the skull. Arms and legs grow weaker at what is called zero gravity because they no longer need to push against the force of gravity.可知在太空中人的頭骨的壓力會(huì)增加。A項(xiàng)錯(cuò)在腿和膀子會(huì)變?nèi)�，B項(xiàng)錯(cuò)在是水分會(huì)到頭腦里面，所以選C
小題3:細(xì)節(jié)題：從文章的內(nèi)容：可知在太空太長(zhǎng)時(shí)間，會(huì)導(dǎo)致骨質(zhì)疏松，視力問(wèn)題和暴露于輻射，而沒有說(shuō)會(huì)脫水，選B
小題4:細(xì)節(jié)題：從文章倒數(shù)第二段的句子：Tests showed that the exercise equipment helped space travelers keep their bones almost as strong as when they left Earth.
可知科學(xué)家設(shè)計(jì)在太空站的運(yùn)動(dòng)設(shè)備，是想幫助宇航員保持骨頭和離開地球時(shí)一樣強(qiáng)健，選B
小題5:細(xì)節(jié)題：從文章第五段的句子：and that men were more affected than women.可知在太空對(duì)男性的影響比對(duì)女性的影響大，選D
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

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C．c→a→b→e→dD．d→a→c→b→e
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Mrs. Ohama spoke to the graduates of Martin luther King Jr. High School on Saturday in her only high school commencemenl (畢業(yè)典禮）speech this year. The ceremony___1____in the gymnasium of Tennessee State University.
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小題1:
A．happened toB．took placeC．occurred toD．came across
小題2:
A．graduatesB．teachersC．studentsD．teenagers
小題3:
A．dependingB．focusingC．decidingD．living
小題4:
A．led toB．referred toC．looked forward toD．occurred to
小題5:
A．spendB．spoilC．enjoyD．waste
小題6:
A．demandB．takesC．spendD．benefit
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A．energyB．powerC．joyD．laughter
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A．openingB．checkingC．writingD．designing
小題9:
A．experienceB．memoryC．failureD．events
小題10:
A．taskB．goalC．homeworkD．wish
小題11:
A．disappointB．encourageC．satisfyD．challenge
小題12:
A．celebrateB．congratulateC．a(chǎn)pplyD．a(chǎn)nalyse
小題13:
A．UnfortunatelyB．FortunatelyC．OccasionallyD．Unexpectedly
小題14:
A．happinessB．sadnessC．failureD．success
小題15:
A．a(chǎn)ffectsB．determinesC．dedicatesD．donates
小題16:
A．find outB．pull outC．beak outD．hold out
小題17:
A．whatB．whichC．whereD．that
小題18:
A．markB．shortcomingC．pointD．a(chǎn)dvantage
小題19:
A．turn onB．take onC．turn upD．take up
小題20:
A．a(chǎn)bandonedB．lostC．wonD．obtain

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

The color red often means danger --- and by paying attention, accidents can be prevented. At railroad crossings, flashing red fights warn cars to stay back. A red light at a traffic crossing tells cars to stop, so they don't run into other cars.
In the future, the color red also may help prevent danger at construction sites. Thanks to new work by engineers, bridge supports --- or other kinds of materials --- could one day contain a color-changing material. It will turn red before a structure collapses(倒塌) or falls apart.
The secret behind the color-changing material is a particular type of molecule(分子). Molecules come in all shapes and sizes, and make up everything you can see, touch or feel. How a molecule behaves depends on what kinds of atoms(原子) it contains, and how they're held together.
To get a rough picture of one way atoms are held together in a molecule, imagine you and your friends standing in a large circle, holding hands. Each person represents one atom, your clasped hands represent the bond, and the entire circle represents a molecule.
The molecule being used to turn the material red is called mechanophore(機(jī)械響應(yīng)性聚合物). When one chemical bond in the mechanophore molecule breaks, the rest of the molecule turns red.
There is a way to get rid of~ the red color: light. When a bright light is shone on the mechanophore, the broken bond is fixed and the red color disappears. This "self-healing" may be a problem for engineers who want to use the color-changer in big construction projects that will be outside, in the sunlight. And if bright light keeps the red color from appearing, then the mechanophore's warning system will be useless.
Scientists still have a lot of work to do before the color-changing molecules can be used outside the lab. If mechanophore can be used in the real world, they are suggested to be employed in a new kind of paint.
小題1:The first paragraph mainly tells us __________.
A．the color red is widely used in our life
B．how to prevent car accidents
C．the color is an important signal of warning
D．how to use color red
小題2:The color red will be used at construction sites to _________.
A．tell different materials used in the building
B．warn people that the building is dangerous
C．make the building more beautiful
D．tell people the building is under construction
小題3:The example given in the fourth paragraph is to show _________.
A．the way atoms are held together in a molecule
B．how a molecule behaves in an object
C．how to play an old game
D．how people get along with each other
小題4:What can make the mechanophore’s warning system ineffective?
A．PaintsB．WaterC．Poor building materialsD．The bright light

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