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高中二年级英语

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  • 阅读理解
    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。
    For over one hundred and fifty years,Americans of all social classes have worn blue jeans.小题1:  Whether they are worn for work or for fashion today.Strauss’ invention continues to be popular not only among Americans but also among people around the world.
    Levi Strauss was born in Germany in 1829.小题2: He grew up in Kentucky before moving to New York in 1847.Before becoming an American citizen and moving to the West in 1853,Strauss worked in his brother’s dry goods business.This gave him a chance to produce his famous invention. After the gold rush of 1949,Strauss decided to move to the West to seek his fortunes.
    Strauss did not want to be a person who searched an area for minerals.Instead,he knew he could make a good living by selling supplies to the miners.At first,he planned to sell sewing supplies and cloth.小题3: When he heard miners complaining that their clothes were easily broken or they usually tore their pockets during mining,he decided to use a special fabric to make pants for the miners.These pants proved so popular that he quickly ran out of materials to make more.
    In 1873,Strauss received a letter from a Jewish tailor named Jacob Davis who had invented a process of connecting pockets with copper rivets(铆钉).This made the pants last a long time.Because Davis did not have the money to patent his idea,he offered to share it with Strauss if Strauss would agree to pay for the patent.    小题4:  .
    By the time Strauss died in 1902,he had made a great contribution to American fashion.
     小题5: The business has been growing ever since and Levi Strauss’ company is now one of the largest clothing companies in the world.
    A.As a young boy,he moved with his family to the United States.
    B.Nobody knew what kind of material was suitable.
    C.He did and Levi jeans have been made with metal rivets ever since.
    D.However,he did not get much business for those products.
    E.He also made a great contribution to America’s clothing industry.
    F.Since they were invented by Levi Strauss,they have become a symbol of American consumer culture.
    G.As the business grew,Strauss got much money from it.

    本题信息:英语阅读理解难度一般 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。For over one hundred and fifty years,Americans of all social clas...” 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