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    Honeybees are disappearing for unknown reasons around the United States．Last winter, bees disappeared from 23 percent of American beekeeping businesses．Causes of the phenomenon, however, have remained a mystery．
    Now, scientists from several universities and the United States Department of Agriculture say they have a possible explanation for the bee decline（数量下降）．It is a little known virus called Israeli acute--paralysis virus （IAPV）．The virus kills bees．Researchers in Israel first described it in 2004 , but until now, bee experts hadn’t paid much attention to it．
    When trying to find out why the bees were disappearing, a research team at Columbia University studied bee colonies （群体）, some with and the others without decline．The research turned up large numbers of two types of fungi （真菌） once suspected of causing the bee decline．The research results, however, showed that the fungi were almost as common in colonies without a decline as they were in colonies with a decline．The researchers concluded that the two fungi probably weren’t the cause．
    Studies of the presence of IAPV, however, showed more interesting information．In those studies, done by a team at Pennsylvania State University in University Park, the virus showed up in 83 percent of samples from colonies with symptoms （症状）．Only five percent of samples from symptomless colonies had it．
    Scientists still don’t know whether IAPIV can single--handedly cause the bee decline．They believe that even if the virus is making colonies sick , it could have a partner in crime．It’s possible, for instance, that insects or chemicals in the environment weaken bees, making them more likely to catch IAPV．
    Scientists are still trying to figure out how IAPV came to the United States．The United States currently allows bee products to be imported from Canada, Australia, and New Zealand．If it turns out that this trade is spreading disease, the rules might eventually change．
    小题1:According to the passage ，IAPV is a virus that ______．
    A．hasn’t attracted much attention
    B．well-known to doctors and scientist
    C．was first found by Austrian researchers
    D．is dangerous to animals and human beings
    小题2:The underlined sentence in the fifth paragraph probably means______．
    A．the virus could also cause other damages
    B．there must be something that is the real cause
    C．IAPV is not the only cause for the bee decline
    D．the virus may be caused by the polluted environment
    小题3:From the third and fourth paragraphs, we know researchers draw their conclusions by means of _______．
    A．calculating B．comparingC．examiningD．investigating
    小题4:What still remains unknown to American scientists according to the passage?
    A．How and why to kill IAPV．
    B．How IAPV came to America．
    C．Whether bee products should be imported．
    D．How to change the rules of the bee products trade．
    小题5:The best title for this passage would be _____．
    A．Bee DiseaseB．How to Kill IAPV
    C．A Virus—IAPVD．Two Types of Fungi

    小题1:A
    小题2:C
    小题3:B
    小题4:B
    小题5:A
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    科目：高中英语 来源：不详 题型：完形填空


    第二节：完形填空（共20小题；每小题1．5分，满分30分）
    阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项。
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    38．A．draw       B．make       C．reach       D．conclude
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    40．A．access      B．entrance   C．charge     D．communication
    41．A．curious    B．serious     C．obvious    D．worth
    42．A．impressed      B．asked       C．showed    D．gave
    43．A．articles    B．notes       C．dairies     D．letters
    44．A．less B．more       C．fewer       D．much
    45．A．general    B．mean       C．generous D．outgoing
    46．A．away       B．forward   C．ahead       D．further
    47．A．existence B．evidence C．confidence      D．dependence
    48．A．based       B．put   C．focused    D．passed
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    50．A．referred to      B．listened to       C．turned to D．stuck to
    51．A．soon        B．presently C．far    D．long
    52．A．strength   B．energy     C．effect     D．force
    53．A．as     B．for   C．to     D．by
    54．A．absent      B．present     C．gone  D．missing
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    科目：高中英语 来源：不详 题型：阅读理解



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    C. to tell us the news that a teenage girl was struck by lightning
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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解


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    科目：高中英语 来源：不详 题型：阅读理解


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    科目：高中英语 来源：不详 题型：阅读理解


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    2001: A Space Odyssey
    In the movie 2001: A Space Odyssey, HAL is one of the first computers to talk like a human.  HAL is very frightening because it speaks in a calm voice as it goes on a killing spree (疯狂杀戮). When the astronauts attempt to hide in a smaller spaceship and switch off the microphones,  HAL uses a camera to read their lips and understand what the astronauts are saying.
    The Terminator
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    The Matr/x
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    D. force HAL to speak loudly
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    科目：高中英语 来源：不详 题型：阅读理解

    Natural ways of keeping time


    In ancient times, people had to use the sun and the moon to tell time. They got up when the sun came up and worked in the fields until the sun went down.
    Man-made things
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    People also made the water clock. They made a small hole near the bottom of a pot. Then they filled the pot with water. Markings inside the pot showed how much time passed as the water dripped (滴) out of the hole.
    Nature’s Clocks in Living Things
    ◆Animals’ Body Clock
    Animals do not need clocks to know time. They have a way of telling time by their bodies. Birds know when to fly to warmer places before winter. Some animals know when to keep more food for the cold winter months. Some fish know when it is time to move up the river and lay eggs.
    ◆Plants have their own clocks
    Plants also have their own clocks to keep time. Plants know when to open flow­ers or when to drop their leaves.
    ◆The Body Clock in Human Beings
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    小题1:How could an ancient farmer know when to go back home in the daytime?
    A．By looking at the moon.B．By looking at the stars.
    C．By looking at the sun.D．By feeling whether tired or not.
    小题2: How many kinds of living things with nature’s clocks are mentioned here?
    A．2.B．3.C．5D．6.
    小题3:From the passage, we know what man-made things have in common is that_______.
    A．both of them have a hole.B．both of them are designed with glass balls.
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