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高中三年级英语

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    How to prepare a lecture
    Being invited to give a lecture is an honor.It means that people regard you as an authority on a given field, subject, or issue.It means you are worth listening to.小题1:  You have to make sure your lecture is interesting, and full of wisdom, from which the audience can take valuable insights.This is why it is important for you to prepare your lecture well.
    1.Think of a good topic.
    You most likely will be assigned to talk about a certain topic.If that's the case, you only need to make an outline and do some research.But in some cases, you will have to think of your own topic.Although it gives you more freedom to do it, thinking of a topic can be tricky.小题2:  Or pick a topic that is timely and socially relevant.
    2.Make an outline for the lecture.
    Start by listing down the points that you will discuss, and then fill in each point with subpoints.If necessary, make a research about your topic.小题3:  But if in so doing you end up with a very long outline, figure how you can shorten the topic or cut where cutting is needed.
    3.小题4:  
    Statistics, figures, medical information, historical accounts, and similar information should all be checked and it will save your credibility as an authority on the subject you are talking about.
    4.Add humor.
    Don't engage your audience in a dragging soliloquy (独白).小题5:  Humor will interest your audience.Of course, make sure the elements in your lecture are in line with your main topic and are not nonsense, racial, and offensive jokes.
    A.Check your lecture for accuracy.
    B.Giving a lecture is challenging, though.
    C.If necessary, provide your contact information, such as an email address or blog site.
    D.Instead, make your audience smile, or burst into laughter at certain points in your discussion.
    E.To make it easier, consider what will interest your audience.
    F.It should summarize your whole talk in one sentence.
    G.Don't be afraid of exploring the topic, as this will allow you to discover other points that need discussion.

    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


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