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高中二年级英语

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    ___小题1:Stephen: Last summer I went through a training program and became a literacy volunteer. When I began to discover what other people's lives were like because they could not read, I realized the true importance of reading.
    ___小题2:Susan: I'm a girl from England and has studied French for years. I'm here in Fudan University studying Chinese. I like China as it is full of mysteries. So I hope the voluntary work will help me to get in touch with Chinese people and get to know about China.Although my study is busy, I can be free at night and at the weekends.
    __小题3:Tim: Since I myself have overcome a lot of difficulties in my life, I understand young people's problems and I know how to listen patiently to others and offer some advice. I'm working now in the daytime so I can only spend two to three hours a day at night to help others.
    小题4:Lisa: I burst into tears when I saw those children in a TV programme. What a sight. They are only bone and skin left. What's worse, every day the children are dying because of lack of food.I realized how lucky I am with enough food and a good chance to get education. The summer vacation is coming and I hope I can do something for them.
    A.As we know, the 2010 World Expo are held in Shanghai and many people from other countries come to visit China.The taxi drivers in Dongfeng Taxi Company think the way to show kindness is to be able to greet the foreigners in their languages. They need someone who can teach them languages and the best time is at night when they are not so busy.
    B.Tom is so addicted to on-line games that he cannot concentrate on his study like before. Now he often misses school in order to play games, thus telling lies to his teachers and parents again and again. Though he realizes what he does is wrong, he just can't stop it. How badly he needs someone's help.
    C.Mane, a 44-year-old single mother of three, has to walk two miles to the nearest supermarket twice a week because she doesn't know which bus to take. What's worse, since she does not know words, she can not write out a shopping list. Also, she can only recognize items by sight, so if the product has a different label, she will not recognize it as the product she wants.
    D."Helping hand" organization will hold an event to help the starving children in Africa.The event starts in August and those taking part in will go without food for 30 hours. In this way, it is expected that money will be raised for the poor children.

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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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