Batteries can power anything from small sensors to large systems．While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves．University of Missouri（MU） researchers are developing a nuclear energy source that is smaller, lighter and more efficient．
“To provide enough power, we need certain methods with high energy density（密度）”，said Jae Kwon, assistant professor of electrical and computer engineering at MU．“The radioisotope（放射性同位素） battery can provide power density that is much higher than chemical batteries．”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems （M/NEMS）．Although nuclear batteries can cause concerns, Kwon said they are safe．
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems．”
His new idea is not only in the battery’s size, but also in its semiconductor（半導(dǎo)體）．Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor．
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure（晶體結(jié)構(gòu)） of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem．”
Together with J．David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery．In the future, they hope to increase the battery’s power, shrink its size and try with various other materials．Kwon said that battery could be thinner than the thickness of human hair．
小題1:Jae Kwon gave examples in Paragraph 4_________．
A．to show chemical batteries are widely applied．
B．to introduce nuclear batteries can be safely used．
C．to describe a nuclear-powered system．
D．to introduce various energy sources．
小題2:According to Jae Kwon, his nuclear battery _______．
A．uses a solid semiconductorB．will soon replace the present ones．
C．could be extremely thinD．has passed the final test．
小題3:The text is most probably a ________．
A．science news reportB．book review
C．newspaper adD．science fiction

小題1:B
小題2:C
小題3:A

試題分析：本文介紹了新型的核技術(shù)的電池的發(fā)展，這種電池體積更小，能量更大。
小題1:B 推理題。根據(jù)本段nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems．”說明現(xiàn)在的技術(shù)已經(jīng)很完美，安全性能也很高，說明主語的電池可以被安全地使用，故B正確。
小題2:C 細節(jié)題。根據(jù)文章最后一句Kwon said that battery could be thinner than the thickness of human hair．說明這樣的電池可能會非常thin。故C項正確。
小題3:A 推理題。本文是關(guān)于新型的電池的研究，其中涉及到高科技的核技術(shù)，那么最有可能是從科技報告中取出來的，故A正確。
點評：文中涉及的是核技術(shù)運用于電池方面的信息。屬于科普類短文，此類文章的最大的障礙是詞匯以及考生對閱讀內(nèi)容的不熟悉，需要考生在閱讀的時候有足夠的耐心。要養(yǎng)成在上下文串聯(lián)中猜測詞義的能力，根據(jù)上下文中出現(xiàn)的同義詞，近義詞，反義詞，以及詞義的解釋來理解生詞。同時要抓住文章的中心，不要受其他信息的影響。要根據(jù)題目及選項以及文章的上下文串聯(lián)合理的判斷推理。
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B．The doctors are very satisfied with the new snake robots during surgery.
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B．Too much space was needed for its installation.
C．The early models often got damaged in the crash.
D．The early models didn't provide the needed data.
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B．To caution people to handle them with care.
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D．To obey international standards
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B．There is an urgent need for them to be reconstructed.
C．They have stopped sending homing signals.
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One day, a teacher was speaking to a group of students about how to manage time. He gave such an interesting example that his students would never   26  .
He put a wide-mouth jar(罐) on the table. Then he    27  some rocks and carefully placed them into the jar, one at a time. When   28  rocks would fit inside, he   29  , “Is this jar full?”
Everyone in class shouted, “Yes.” “Really?” The teacher pulled out a bag of small stones. He put   30  small stones in and shook the jar. The small stones went   31  into the spaces between the big rocks. He then asked the group   32  , “Is this jar full?”
“Probably not,” one of them answered. “Good!” the teacher replied. He brought out a box of sand and   33  some sand on the jar and it went between the rocks and small stones. Again he asked the   34  question, “Is this jar full?
“No,” the class shouted. Once more the teacher said, “Good.” He poured a cup of water into the jar   35  it was full. The he asked, “What is the point here?” One student   36  his hand and said, “The point is that if you try really hard, you can   37  put more things in.”
“No,” the teacher replied, “that’s not the   38  . What I want to tell you is that if you don’t put the big rocks in first, you will never get others in at all.   39  are the ‘big rocks’ in your life? Time with your friends, your education or your dreams? Remember to put the   40  in first, or you’ll never get others in at all?”
小題1:
A．rememberB．likeC．forgetD．think
小題2:
A．handed outB．took outC．carried awayD．put away
小題3:
A．no moreB．not moreC．no manyD．not many
小題4:
A．a(chǎn)nsweredB．readC．a(chǎn)skedD．said
小題5:
A．noB．fewC．a(chǎn)nyD．some
小題6:
A．upB．outC．downD．a(chǎn)way
小題7:
A．no moreB．once againC．a(chǎn) third timeD．a(chǎn) fourth time
小題8:
A．sentB．putC．boughtD．collected
小題9:
A．sameB．differentC．difficultD．common
小題10:
A．sinceB．tillC．whileD．because
小題11:
A．offeredB．placedC．raisedD．shook
小題12:
A．a(chǎn)lwaysB．a(chǎn)lreadyC．neverD．hardly
小題13:
A．pointB．exampleC．promiseD．story
小題14:
A．WhenB．WhatC．WhoD．Why
小題15:
A．sandB．small stonesC．big rocksD．water

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科目：高中英語 來源：不詳 題型：閱讀理解

The skin which covers the tips of the fingers and thumbs is crossed by numerous ridges (隆起) arranged in different patterns. These patterns are permanent from birth and remain exactly the same throughout a person's life, even when the skin becomes wrinkled and cracked as a result of old age. Such patterns are never passed on from parents to children, and no one in the world has the same patterns as anyone else. Even identical twins have different sets of fingerprints. As a result, fingerprints offer a most useful and foolproof way of identifying people. Any ridged part of the hand and the foot may be used as a means of identification, but finger impressions are usually preferred since they can be taken easily and quickly.
Fingerprints are classified in the ways: by general shapes and contours(輪廓), by the finger positions of the pattern-types, and by size (often measured by counting the ridges in the loops). Every set of fingerprints has different “ridge characteristics” (i. e. the print of each separate finger is different from that of all the other fingers), which belong to one of four basic groups: arches, loops, whorls and composites. All fingerprints can then be divided into 1, 024 groups. By using details in the patterns above, these 1, 024 groups can be further divided into thousands of smaller groups, thus making it possible to find a particular set of fingerprints in a few minutes.
小題1:According to this passage, the true statement about human fingerprints is that ____.
A．people's fingerprints sometimes can be passed on from parents to children
B．people’s fingerprints are unique but identical twins may have the same fingerprints
C．using fingerprints is the only way to identify people
D．people's fingerprints will not change in all their lives
小題2:We prefer to use fingerprints to identify people because ____.
A．we can never find the same set of fingerprints among human beings
B．finger impressions can be taken easily and quickly
C．fingerprints offer a most useful and foolproof way of identifying people
D．a(chǎn)ll of the above
小題3:The word “foolproof” (Line 7, Para. 1) most probably means ____.
A．that is permanent　B．that is acceptable
C．that can not go wrong　D．that is not foolish
小題4:About the classification of fingerprints, which is TRUE? ____.
A．Fingerprints can be classified in three ways
B．All fingerprints can be divided into 1, 024 groups and can not be divided further
C．It is not easy to find a particular set of fingerprints in a short time
D．People can not classify the fingerprints in an effective way

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科目：高中英語 來源：不詳 題型：閱讀理解

She had been shopping with her Mom in Wal-Mart．She must have been 6 years old, this beautiful brown haired, freckle-faced image of innocence．Outside, it was pouring so heavily．
We all stood there just inside the door of the Wal-Mart．We waited, some patiently, others annoyed because nature messed up their hurried day．I got lost in the sound and sight of the heavens washing away the dirt and dust of the world．
Her voice was so sweet as it broke the hypnotic trance （昏昏欲睡） we were all caught in．"Mom, let's run through the rain," she said．
"No, honey．We'll wait until it slows down a bit," Mom replied．
This young child waited about another minute and repeated: "Mom, let's run through the rain．"
" We'll get wet totally if we do," Mom said．
"No, we won't, Mom．That's not what you said this morning," the young girl said as she tore at her Mom's arm．
"This morning? When did I say we could run through the rain and not get wet?"
"Don't you remember? When you were talking to Daddy about his cancer, you said, If God can get us through this, he can get us through anything!"
The entire crowd stopped dead silent．I dare say you couldn't hear anything but the rain．We all stood silently. No one came or left in. the next few minutes,Mom paused and thought for a moment about what she would say．
Now some would laugh it off and scold her for being silly．Some might even ignore what was said. But this was a moment of affirmation in a young child's lifetime when innocent trust can be developed so that it will bloom into faith．"Honey, you are absolutely right．Let's run through the rain．If get wet, well maybe we just need washing," Mom said．Then off they ran.
We all stood watching, smiling and laughing as they rushed past the cars and they held their shopping bags over their heads just in case．They got soaked．But they were followed by a few who screamed and laughed like children all the way to their cars．And yes, I did．I ran．I got wet．I needed washing．
You may lose your material possessions, your money and even your health, but no one can ever take away your precious memories．So don't forget to make time and take the opportunities to make memories．
小題1:Which of the following is the closest in meaning to the underlined word "affirmation"?
A．happiness B．a(chǎn)pproval C．disagreementD．love
小題2:What do we know about the mother in the story?
A．Her husband was cured of his cancer．
B．She was strong-willed and considerate．
C．She was in despair and pretended to forget what she said．
D．Her daughter completely understood the situation her family was in．
小題3:Which of the following may the author agree with?
A．The mother should not tell her child about the family misfortune．
B．Parents should act more bravely than their children．
C．Parents should grasp every opportunity to influence their children to grow well．
D．Children should learn to show gratitude and understanding to their parents．
小題4:The best title for the passage might be _____．
A．Run Through the RainB．Be a Determined Mother
C．Wait in the RainD．Have a Wonderful Experience

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