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  • 完形填空
    阅读下面短文, 请根据短文后的要求进行答题。（请注意问题后的词数要求）
    [1] The year 2008 has one extra day in it--February 29th, why does this happen? Well, it actually takes the planet Earth a little more than 365 days to revolve completely around the sun. After four years an extra 24 hours have accumulated so an extra day is added to the calendar.
    [2] It is called a leap year because hundreds of years ago in England, the extra day wasn't legally recognized. The British just leapt over that day. Therefore a year with 29 days in February is consequently called a leap year and that                         . If you are born on 29th February in a leap year, there are difficulties in celebrating your birthday. So people tend to celebrate on either 28th February or 1st March every year.
    [3] There is a well-known tradition in the UK associated with 29th February, introduced many centuries ago. Women are allowed to break with tradition and propose (求婚) to their boyfriends on this day. This all started back in the 5th Century, when a famous Irish saint, Bridget, complained to Saint Patrick, another famous Irish saint, that women had to wait too long for men to propose. According to the legend, Saint Patrick said any female longing for a proposal could ask their boyfriend to marry them on this additional day in February.
    [4] Now in 2008, there are calls for 29th February to become a public holiday. Some people believe that it should be an official day off, because no one gets paid for working in a leap day. For the moment though, the British still have to go to work on this day.
    小题1:What is the main idea of the text? ( no more than 8 words)
                                                                                              
    小题2:Complete the following statement with proper words. ( no more than 5 words)
    Hundreds of years ago, a popular tradition in England was recommended
    Which                       29th February.
    小题3: How long does it take the planet Earth to revolve completely around the sun? (no more than 9 words)
                                                                                                    
    小题4:Fill in the blank in Paragraph 2 with proper words. ( no more than 8 words)
                                                                                             
    小题5:What does the word  "them" (Line 5, Paragraph 3) probably refer to? ( no more than 3 words)
                                                                                         

    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 “阅读下面短文, 请根据短文后的要求进行答题。（请注意问题后的词数要求）[1] The year 2008 has one extra day in it--February 29th, why does this happen?...” 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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