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高中三年级英语

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    Like our body, our memory needs regular exercise to be in good condition. Like the sportsman who must train to allow the body to respond to difficult times, the memory needs its own special training in order to stay in “shape” and improve.
    There are many factors that can cause poor memory like insomnia (失眠), depression and alcohol. However, there are simple ways which you can follow to keep your memory in shape and actually help you to improve your memory’s condition and performance.
    Never stop learning. Look for topics that interest you and really get involved in learning new information about them. Reading and attending lectures or programs are sources of continuous education of your brain with beneficial results to your memory.
    Develop your social and family relationships. The more social you are, the better it is for your brain. Studies have shown that the brain and heart have a lot to gain from good family and social relationships.
    Exercise your mind with games. The more you use your brain, the more you help your memory stay in shape. There are many games that can make you an intelligent person as well as entertain you such as chess, puzzles and board games.
    Exercise physically can improve your memory. This type of exercise improves the circulatory (血液循环的) system. Even the simple but regular daily exercise such as fast walking can improve the heart and oxygenation(供氧) of the brain. The benefits of exercise affect positively many body systems, as well as our memory and other cognitive(认知的) capabilities.
    Eat more fruit and vegetables. What we eat every day affects the performance and long-term condition of our memory. Fruit and vegetables are an excellent source of antioxidants(抗氧化剂) and vitamins that can help and benefit the nervous system.
    So our memory is like a sportsman. The more we practice our brains and memory, the better their performance will be.
    Title: How to improve memory
     
    Topic
    小题1:    like insomnia, depression and alcohol can lead to poor memory. We should exercise 小题2:  to keep memory in good condition.
     
    Ways to improve memory
    Never stop learning
    小题3:   like reading and attending lectures or programs does good to your memory.
    Develop social and family relationships
    Good family and social relationships are beneficial to your brain and contribute to 小题4: as well.
    Exercise mind with games
    Play chess, puzzles or board games, which is of great benefit to your intelligence and also offers you小题5: .
    Take小题6:  exercise
    Physical exercise improves the 小题7:  of the brain, which leads to better memory.
    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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