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高中三年级英语

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  • 完形填空
    根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。注意:涂卡时,如答题卡上没有E、F、G选项,请按如下方式填涂:选E涂AB;选F涂AC;选G涂AD。
    Watching a sporting event with family and friends under the sun is a great experience in summer.   小题1:  In the United States, heat exposure led to 8,000 deaths between 1979 and 2003. Luckily, a little prevention can go a long way towards making sure of an enjoyable day.
    Know the danger
    Heat-related illnesses do not require record-breaking temperatures to occur.   小题2: The body’s temperature can reach 106 or 107 degrees Fahrenheit on a 90-degree day, creating a potentially deadly situation. Factors such as age, weight or a medical condition can influence people.
    Drink plenty of water
     小题3:  Sweating is your body’s key way to keep cool, so drink water to stay well hydrated(含水的) before you feel thirsty. A cool beer may sound perfect on a hot day, but drink responsibly. Alcohol stops the body’s cooling system and causes you to go to the bathroom frequently.
      小题4:   
    Wear light-colored and loosely fitting clothing, so air can go around your body and help keep you cool. A hat is a must to help you keep cool, since your head contains many blood vessels(血管), and sun block(防晒乳) is always a good idea.
    Take action
    What should you do if you are suffering from the heat while watching your favorite event?
    Get up and go. It is a simple piece of advice, but could make the difference between a quick recovery and something more severe that requires medical attention. The ideal thing is to move yourself from the position you’re in to an area that is a little cooler. 小题5:  
    A.Dress for the occasion
    B.Weather-related causes
    C.In hot weather, it is essential to stay hydrated.
    D.You may miss a little of the action, but it beats missing a lot.
    E. But when you add sun exposure to the crowds, the results can be deadly.
    F. It is also important to take advantage of services the equipment provides.
    G. Temperatures between 80 and 90 degrees Fahrenheit can be dangerous.

    本题信息:英语完形填空难度一般 来源:未知
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本试题 “根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。注意:涂卡时,如答题卡上没有E、F、G选项,请按如下方式填涂:选E涂A...” 主要考查您对

序数词

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • 序数词

序数词的概念:

表示顺序的数称为序数词。如:first, second, third, fourth。


序数词的构成与用法

1、序数词的构成:
①一般来说,是由相应的基数词加词尾th构成。
   例:four+th→fourth
           six+th→sixth
           seven+th→seventh
           ten+th→tenth
②下面这些基数词在变为序数词时,有特殊的变化。
例:one→first
        two→second
        three→third
        five→fifth
        eight→eighth
        nine→ninth
        twelve→twelfth
③十位整数序数词的构成方法是将基数词的词y变成i,然后再加eth。
例:twenty→twentieth
        thirty→thirtieth
        forty→fortieth
        ninety→ninetieth
④两位或两位以上的基数词变成序数词时,仅将个位数变成序数词。
例:twenty-one→twenty-first
        thirty-five→thirty-fifth
        a hundred and fifty-three→a hundred and fifty-third

2、序数词的用法:
①序数词在使用时,一般加上定冠词。
例:the first book
        the second floor
        the third day
        the fourth week.
②序数词在多数情况下都用作定语,有的也可以作表语、主语和宾语。
例:The may1st is Labour Day. 五月一日是劳动节。
        My room is on the second floor. 我的房间在二楼。
        The first is larger than the secon.(主语)第一个比第二个大。
        Read the book from the first.(宾语)从开头读这本书。
        You'll be the sixth to write.(表语)你将是第六个写的。
③序数词的前面可以加上不定冠词,用来表示“再一”,“又一”的意思。
例:You may have a third try. 你可以第三次尝试。


序数词知识体系:

 


约数的表达方法

用tens/dozens/scores/hundreds/thousands/millions of 表示“几十、几百、上千、成千上万”等。
如:The boy bought dozens of pencils.            
        Thousands of people died in the earthquake.
注意: (A):dozen, score, hundred, thousand, million等表示确切数量时,不用复数。
如:five dozen (of) eggs   五打鸡蛋
        hree hundred people  三百个人

分数词的构成和用法:

1)分数词构成法:
分数词(FractionalNumerals)由基数词和序数词构成,基数词代表分子,序数词代表分母。除了分子为1的情况下,序数词都要用复数形式:
如:1/4:one-fourth
        5/9:five-ninths
        2/3:two-thirds
       17/5:three and two-fifths
       7/12:seven-twelfths
       379/8:forty-seven and three-eighths
此外还有下面表示法:
如:1/2:a(one) half
        1/4:a(one) quarter
        3/4:three-quarters
        9/4:two and a quarter
        3/2:one and half
        31/4:seven and three quarters


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