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高中二年级英语

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    Directions: Read the following text and choose the most suitable heading from the list A-F for each paragraph. There is one extra heading which you do not need.
    A. Most common types of accidents.
    B. Ways of preventing accidents.
    C. Nursing home injuries.
    D. Causes of home accidents.
    E. The importance of education.
    F. Is home really safe?
    小题1: _________
    Home is a place where one feels safe and secure but unfortunately, it is also the place where you may have serious accidents. The biggest single cause of accidents is human error! So you must take care of yourself!
    小题2:__________
    The design of houses can cause accidents. Balconies, fireplaces, staircases, ponds, glass doors or open-plan kitchens can all increase the risk of accidents. Hot water, household chemicals, fireplaces, matches, alcohol and sharp objects are also potential dangers. Loosing balance, clumsiness and being tired or careless can be the reasons for these accidents. What’s more, if you are under stress or when a routine is changed, you may also be under the risk of home accidents.
    小题3:___________
    You can see many dangerous home accidents happening around you. The most common ones are slips, falls and collisions. They are not fatal but often result in broken bones. The second most common types of accidents are burns, swallowed objects or breathed in chemicals. They especially affect children and need hospital attendance. Some other possible dangers at home are poisoning, choking, drowning, electric shocks, and animal bites. Some of these accidents may even result in death.
    小题4: ___________
    Sometimes the simplest precaution protects you from the greatest harm! Therefore, it is important that we should educate people. The Ministry of Health can train professionals to educate nursing staff, ordinary people, voluntary workers, teachers, nursery staff and parents in home accident prevention and control. When people know first aid, they can reduce the risk of serious injuries.
    小题5:___________
    You must take measures to make your home a safer place. For instance, keep knives and other sharp objects in a safe drawer. Wipe up any liquids on the floor immediately in order not to slip or fall. Keep hot objects away from the reach of children. You also mustn’t leave children unattended near a bath that has water in it. If you keep furniture away from windows, you may prevent possible harm. Store all medicines, household chemicals, and so on, preferably in a locked box and do not forget to keep all dangerous substances in their original containers. In brief, if you want to protect yourself, be careful not to be sorry!

    本题信息:英语完形填空难度一般 来源:未知
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本试题 “Directions: Read the following text and choose the most suitable heading from the list A-F for each paragraph. There is one extra heading which you...” 主要考查您对

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