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高中英语

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  • 完形填空
    课文填空(每空1分,共15分)请根据课文内容填出正确的词或短语。
    Our eating habits have changed, as_____________ our way of life, and the fuel we need for our body is also different. Other nutrients, such as fiber and minerals, help keep our body_______________ well. Vitamins, which we can get from eating vegetables, fruit, fish and drinking milk, help our body_______________ disease. It is probably better, however, if we spend our time and money in buying good food and ______________ a balanced diet. If we eat healthy food in the right______________, we do not have to buy any supplements. The same goes for “crash diets” that some companies say will make us________________ fast. ________________ eating expensive diet food or going on unhealthy diets, we can simply try to eat less fat and sugar and ________________ more.
    Kwanzaa is a seven-day festival _______________ the culture and history of African Americans. Kwanzaa is a time for learning_______________ joy. On the last day of Kwanzaa, family and friends _________________ to enjoy a large meal and to celebrate the new year. 
    _______________ a new festival may seem an unusual way to celebrate history and culture, but we are in fact creating new festivals every year. __________________ we celebrate a festival it changes a little and in that way we keep our culture________________ . The Spring Festival, Christmas, Ramadan, Kwanzaa and all the other holidays and festivals help us understand who we are, remember where we come from, and _________________ our hopes for a happy future. 

    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 “课文填空(每空1分,共15分)请根据课文内容填出正确的词或短语。Our eating habits have changed, as_____________ our way of life, and the fuel we need ...” 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