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高中三年级英语

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    Nowadaysmoreandmorepeopleareconcernedabouttheir health,buthowtokeephealthy? Differentpeoplemay give differentanswerstothisquestion.Inmyopinion, itisessentialto dothe following.
    First,itisabsolutelynecessarytotakesomeexerciseatregular timeeveryday.Researchshows thatgettingplentyofexercisecanmaketheheartbeatfaster andthelungsworkharder.This strengthenstheheart,reducesthechanceofheartattack,andhelpslower bloodpressure.That’s whymore andmorepeoplearebecomingactive invariouskindsofsportsandexercise.Every morningmanypeople get upearly and takemuchexercise.Some play ballgameswhileothersrun, jog,walkor dancetomusic.Intheafternoon,therearealsomanypeoplekeenonsports.Through sports and exercise, people become healthierand stronger.
    Medicalresearchers have proved that what people eataffects theirhealth.Theyadvise peopleto eatmorefruitandvegetablesandless meatsuchas beefandporkbecausemeatcontainsmorefat thanpoultry(家禽) and fish. Fat can build up in the arteries(动脉),blocktheflowof blood,and cause a heart attack orstroke(中风).
    Gettingridofbadhabitslikesmokinganddrinkingalcoholisalsoanimportantwaytokeep healthy.Smokinganddrinkingalcoholinjureone’shealthagreatdeal,andthereforeshouldbegiven up. Unfortunately few people follow this advice.
    Best title: How to keep 小题1: 
    Tips
    Details
    Takesome exercise小题2:
    Benefits of plenty of exercise:
    ★The heartcan be     小题3:   ;
    ★The chance of heart attack can be   小题4:;
    ★Blood pressurecan be   小题5:  .
    Pay  attention toyour   小题6: 
     小题7:   
    ★Fat can result in a heart attack orstroke;
    ★Morefatmay be  小题8:  in meat.
    Suggestions:
    ★Toeat morefruit and vegetables;
    ★Toeat less meat such as beef and pork.
    Give  up  bad habits
    Harm of bad habits:  smoking  and  drinking  alcohol  do  小题9:  to  one’s health.
    Advice: Getting ridof badhabits like smokingand drinking.
      小题10: 
    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

    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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