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高中二年级英语

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    【1】People study their family history for different reasons. For some, genealogy(家谱学) is important to their religion. Other people who get involved in genealogy may want to confirm stories they heard about a family member. Some people say their interest in genealogy came from an eight-part series on television called Roots. Roots was first broadcast in 1977 and was based on a book which describes how the author’s ancestor, long ago in Africa, as slave was brought to America. After watching Roots, many Americans wanted to study ________________.
    【2】Finding family roots is not always easy. So how exactly does someone start a genealogical research ?
    【3】Experts say you should start with yourself. Write down your own history. One idea is to ask your parents what they can remember about their parents or grandparents. You can often find a lot of information in family pictures, letters and other documents.
    【4】Resources on local history may also provide useful information. Large libraries may have hundreds of helpful books. In the United States, several groups have large collections of genealogical materials. These collections are open to the public.
    【5】Governments often have many helpful records of genealogists. Governments usually keep official copies of birth, marriage and death records. Local governments may have copies of wills. These statements of final wishes often contain details about a person’s life and wealth.
    【6】Today, many people use the Internet. There are thousands of web sites related to genealogy. They can guide people to historical records and provide information about how to write down their family’s history.
    小题1:What is the passage mainly about ? (no more than 10 words)
    _________________________________________________________________________
    小题2:How many ways are mentioned in how to start a genealogical research ? (no more than 2 words)
    _________________________________________________________________________
    小题3:Fill in the blank in Paragraph 1 with proper words. (no more than 6 words)
    _________________________________________________________________________
    小题4:Why should people ask governments for help in the study of genealogy ? (no more than 8 words)
    _________________________________________________________________________
    小题5:What does the underlined word “They ” (Paragraph 6 ) probably refer to ? (no more than 5 words)
    _________________________________________________________________________

    本题信息:英语完形填空难度一般 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