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高中二年级英语

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    第二节(共5小题;每小题2分,满分10分)
    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。
    Today’s children are not satisfied with playing simple games with simple toys.   71   The electronic models are marketed. They can move and communicate. Children need toys that fit well into their renewed idea of playing pleasure.
    72   These toys are among the top ten “must haves” for every boy and girl. Their sales largely depend on the rapidly changing toy trade. Besides, the demand by parents and children for more advanced features can make a robot toy sell well.
    There are different types of robot toys in the market today.   73   However, video games are not considered as robot toys. While video games are just electronic role-playing mind games, robot toys are highly dependent on the interaction(互动) between the toy and the user. In a video game, the player has a specific goal or task that must be accomplished. The robot toy is a simulation(模仿) of an animal or human.
    There are a number of different types of robot toys in the world market today. They are all very costly. There are high-tech robot toy pets that have life-like actions and movements.   74    Not only children but even adults like robot toys and are now spending a lot of money on them in the market.
    Robot toys are great educational toys that interact with and within their environment.   75   The robot toys have sensors that enable them to see, hear and feel, making them the ideal companions. And many robot toys are also designed to express emotions,
    A.In fact, their demand today has changed.
    B.Robot toys are popular with adults as well as children.
    C. A robot toy is an electronic toy that is the gift of modern technology.
    D.Video games are common in the world of games for children.
    E. The toys enable the user to experiment and increase creativity.
    F. Some of the robot toy pets can actually fetch and carry.
    G. Now robot toys are playing an important part in the growth of children.

    本题信息:英语完形填空难度容易 来源:未知
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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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