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高中英语

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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.
    小题1:Such as runny noses, sore throats, nothing quite like the common cold to make you feel miserable. But experts believe that there is no link between cold weather and catching colds. 小题2:
    Internal Medicine expert, Dr Meenakshi Jain of Max Hospital says, “One reason could be that people are likely to stay indoors, so the virus can spread easily. 小题3: ”
    The common cold is a viral infection that can be caused by any of up to 250 strains of virus, the most common group of which are the rhinovirus(鼻病毒) that hit the nose.
    小题4:“They are transmitted through the nose respiratory(呼吸的) passages, by touch, and by contact with airborne particles that are created by sneezing or coughing,” says Dr Jain.
    There is no cure for the common cold and antibiotics(抗生素) are of no help. However, there are some precautions which can help:
    小题5:In this case, you can protect your hands from getting germs.
    Don’t touch your eyes, nose and mouth, which can limit your chances of infection.
    Don’t share drinking glasses or utensils with anyone as this will prevent the spread of the virus.
    Make sure to eat enough fruits to boost your immune system.
    A.Also the virus thrives (兴盛,繁荣) in wetness in the atmosphere.
    B.Drink lots of fluids to avoid dehydration.
    C.They are responsible for anywhere between a third and half of all common colds.
    D.Get enough sleep and you’ll certainly feel better.
    E.So why are we particularly vulnerable (脆弱的) this season?
    F.Wash your hands regularly.
    G.It’s winter and you have probably noticed germs are everywhere.

    本题信息:英语完形填空难度较难 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.小题1:Such as runny noses, sore throats, nothing quite like the co...” 主要考查您对

序数词

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  • 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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