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    1．At first sight the planet Mars（火星）does not appear very welcoming to any kind of life．It has very little oxygen and water，the temperature at night is below 50degrees and winds of 100miles （161kilometers）per hour cause severe dust storms．However，the surface of the planet seems to show that water flowed across it at some time in the past，and it is believed that there would be enough ice at the poles to cover the planet with water if it melted．Although there is no life on the Mars now，some scientists think there may have been some form of life a long time ago．At that time，the planet had active volcanoes（火山）； the atmosphere was thicker and warmer； and there was water．In fact，in some ways the Mars may have been similar to the Earth，where life exists．
    Some people believe that the Mars could support life in the future if the right conditions were produced．The first step would be to warm the planet using certain gases which trap the Sun's heat in the planet's atmosphere．With warmth，water and carbon dioxide（二氧化碳），simple plants could begin to grow．These plants could slowly make the Mars fit to live on．It is judged that the whole process might take between 100，000and 200，000years．In the meantime，people could begin to live on the planet in a special closed environment．They would provide a lot of useful information about conditions on Mars and the problems connected with living there．

    33．According to the passage，the planet Mars has noAon it．
    A．animals        
    B．mountains          
    C．dust       
    D．winds
    34．What is the topic of Paragraph 2？C
    A．Certain gases should be used to warm Mars．
    B．Plants should be grown to make Mars fit to live on．
    C．Mars could support life with right conditions in the future．
    D．People could live on Mars in a special closed environment．
    35．The most suitable title for the passage isD．
    A．No Life on Mars                   
    B．A Study of Mars
    C．The Future conditions on Mars        
    D．The Possibility of Life on Mars．

    分析 本文是科教类文章，主要分析了火星上的现状以及对过去火星历史的推测，从而展望了未来火星适合人类生存的可能性．

    解答 33．A．细节理解题．在第一段中的细节中提到了winds，duststorms，volcanoes，但是没有涉及第四项，根据thereis no life on the Mars now知火星上没有动物生存，故选A项．
    34．C．段落大意题．根据第二段的叙述可知主要讲未来在火星上如何创造适合人类生存的条件，也就是说第一句话为本段的主题句，故本段主题为C项．
    35．D．主旨大意题．本文主要分析了火星上的现状以及对过去火星历史的推测，从而展望了未来火星适合人类生存的可能性，故D项作为题目合适．

    点评 本文是科技类阅读，主要考查细节理解题和推理判断题．在做细节理解题时，首先根据题目要求迅速在文章里找出相应的段落、句子或短语．认真比较选项和文中细节的区别，在做推理判断题时不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．

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    A．shoppers have longed for this day for a long time
    B．the shops will be very crowded on that day
    C．the shops will keep open until the daybreak of next day
    D．shoppers can buy many items at low prices on that day
    72．Why are many stores increasing security according to the passage？C
    A．Because there are too many people saving more and spending less．
    B．Because it's a time when they begin making their profits for the year．
    C．Because last year a crowd of bargain-hunters caused an accident．
    D．Because many stores open their doors from midnight to four a．m．
    73．From the passage we know thatA．
    A．Christmas shopping is traditional time and this year it is no exception．
    B．Electronics like flat screen TVs are usually least discounted．
    C．The economy only affects consumers on that bargain day．
    D．Thanksgiving is a good indication of how consumers feel about the future．
    74．We can find this passage inC．
    A．a science fiction                       B．a travel brochure
    C．an economic research report             D．a book on psychology
    75．Why American people call it a black day？B
    A．Because they organize activities in honor of some great person．
    B．Because there are too many people going out shopping for Christmas．
    C．Too many people are celebrating Thanks giving．
    D．The sky is black that day．

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    科目：高中英语 来源： 题型：阅读理解

    11．The UK government is considering removing"Best Before"dates on food packaging in the country，in order to prevent throwing away of million tons of eatable produce worth£6bn each year．
    According to the Waste and Resources Action Program，British families throw away 8.3million tons of food and drink a year，while most of it ends up in garbage sites．It is reported that more than 5million tons of the thrown-away food still remains eatable．
    "Best Before"（BB） is not the same as"Use By"（UB）．BB is about quality not safety．UB is the key date in terms of safety．"Best Before"indicates the date before which a product provides the most satisfying experience for the consumer．It's safe to eat，but it just won't be at their best．By contrast，"UB"dates show when food is no longer safe and should be thrown away．One exception is eggs，which should not be eaten after their"BB"dates because they can contain salmonella bacteria，which could multiply．By law，pre-packed food must show a"BB"date．
    The government will set down new policies that will provide better information for shoppers and stop them from throwing away food before it is even opened．Under the new policies，sellers will have to produce labels （标签） that will give accurate information of the health risks associated with foods that remain on shelves，or in the fridge for a certain period before being eaten．Seafood and eggs，for example，would be more likely to carry warnings of potential risks of food poisoning if they were eaten after a certain date．Bread，however，where risks would be smallest，would carry much simpler labels．
    In order to reduce food waste，scientists at Strathclyde University are developing a plastic packaging，which will be on the shelves within two years．The advanced packaging can tell when meat，fish or salad leaves have passed their UB dates or have been left out of the fridge for too long．

    60．The UK government is planning to remove BB dates in an attempt toA．
    A．reduce food waste                   B．improve food package
    C．introduce UB dates                  D．offer advice on keeping food
    61．"Best Before"is a date whichC．
    A．will apply to all kinds of food         B．indicates when food is to go off
    C．concerns quality rather than safety     D．gives full information on potential risks
    62．Which would carry the least health risk information on the labels？A
    A．Bread．  B．Seafood．  C．Meat．  D．Salad leaves．
    63．Which would be the best title for the passage？D
    A．Food Safety Policy in UK        B．"Best Before"or"Use By"？
    C．Food Waste：Who Is to Blame？D．UK to Remove"BB"Food Labels．

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