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高中二年级英语

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    根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
    If you garden for pleasure, you may not be aware of how beneficial this hobby is for your health. While you are preparing your garden to grow fresh plants, you are actually doing an amount of exercise as well. Basic yard care tasks such as cleaning the grass or moving fallen leaves away are also good ways to get physical exercise.  小题1:. Just think of the mental relaxation you experience when working in the garden.
    Various health experts and university studies show that gardening and yard work are more than just enjoyable hobbies.  小题2: . This is truly a great thing as you can use your whole body while you are working. Gardening also involves a number of different kinds of exercise, including stretching and weight lighting.
    Activities in the yard and garden are also a form of exercise that is appropriate for a variety of people and age groups. Depending on the activity, gardening and yard work are not quite as hard on your body as jogging or running.  小题3: Like other forms of exercise, gardening can help lower blood pressure and cholesterol (胆固醇) levels and keep away heart disease. Moreover, it helps burn a lot of calories.
     小题4:. But you can increase the amount of time you spend gardening to improve your health even more. If you are not an active gardener, think about starting a small garden. This way, you can combine the joys of growing your own food with light exercise.
    When gardening, like other forms of exercise, you need to follow a few basic tips to maximize your experience. First, you should warm up a bit. Do some basic stretches so that your muscles are ready.  小题5: . This is especially important if you are not already an active gardener.
    A.They are also unique forms of exercise that allow you to do something creative and fun.
    B.Then if you plan to lift heavy objects, always lift them with your knees, not your back.
    C.Additionally, gardening and yard care are beneficial for your mental health, too.
    D.In the winter, you may wonder what kinds of activities you can do in the garden.
    E.There are a lot of activities that you can do in your yard and garden.
    F.This means that even if you are older, you can still enjoy the exercise.
    G.If you already garden, good for you!

    本题信息:英语阅读理解难度容易 来源:未知
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本试题 “根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。If you garden for pleasure, you may not be aware of how beneficia...” 主要考查您对

序数词

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • 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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