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高中三年级英语

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      Bargain shopping is popular throughout the globe. The main reason is because people know that they get the opportunity to save money. But in order to buy things at the lowest prices, you need to follow certain tips:
    Use the Internet.  小题1:You can go to many online stores where you are able to see various products with different prices. Through going online, you  can compare the products by their prices and qualities.
    Use online coupons. By using these coupons, you can even expect a discount of 50% on what you want to buy.  小题2: And they have different kinds of goods for you.
    Shop at the right time. It is a known fact that there are certain items that go on sale in certain months of the year. Keep an eye on such sales. 小题3: And you will receive the best offers.
    Use a shopping list. 小题4:So that you know exactly what to buy. If you just enter the store and start buying things that you are interested in, you will probably end up buying many cheap things that you may not need for the present moment.
     小题5: If you are familiar with online shopping, you should participate in online auctions(拍卖). There are websites such as e-bay which gives you the opportunity to buy products at low prices.
    A.Take part in online auction.
    B.There are many websites that offer these coupons.
    C.Never speak about the amount that you want to pay.
    D.You must get into the habit of carrying a shopping list.
    E. You can have more shopping areas by shopping online.
    F. Think twice before shopping and don’t follow ads blindly.
    G. Visit the store only during those particular times of the year.

    本题信息:英语完形填空难度较难 来源:未知
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本试题 “Bargain shopping is popular throughout the globe. The main reason is because people know that they get the opportunity to save money. But in order ...” 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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