根据短文内容，从短文后的七个选项中选出能填放空白处的最佳选项。选项中有两项为多余选项。Physical activity is known ,高中三年级,英语试题,序数词考点,好技网

完形填空

根据短文内容，从短文后的七个选项中选出能填放空白处的最佳选项。选项中有两项为多余选项。
Physical activity is known to reduce the risk of some diseases such as heart disease, stroke and diabetes. It is also known to increase the release of endorphins(安多芬) which reduce feelings of pain and help people feel more happy and peaceful.
__小题1:__ Some experts believe it is the act of exercising itself. Others say it is the feeling one gets from having met an exercise goal. Either way, the two things work together when it comes to improving one’s emotional health.
__小题2:__Aerobic exercise gets our heart rate going faster and increases our breathing. Activities like walking at an increased speed, dancing, swimming or riding a bicycle are good examples. Muscle- strengthening activities help build and strengthen muscle groups in the body.__小题3:__.
Experts said adults should get at least two and a half hours of aerobic exercise each week. More intense activities reduce the suggested amount of time to one hour and fifteen minutes. __小题4:__.
Earlier advice from the Centers for Disease Control said people need to exercise thirty minutes each day for at least five days to get the health benefits of exercise. More recent research suggested that those gains are the same whether you exercise for short periods over five days or longer sessions over two or three days.__小题5:__ A. They help people guarantee that they stay with the program.
A. There are two separate, but equally important kinds of physical activity.
B. This kind of exercise includes lifting weights, or doing sit-ups and push-ups.
C. Health experts have long noted the importance of physical activity.
D. There is some debate about exactly what causes the brain to release endorphins.
E. Experts say people should choose physical activities that they find fun.
F. Some examples are playing basketball, swimming and distance running.
G. Physical activity can help people reduce the risk of getting diabetes.

本题信息：英语完形填空难度一般来源:未知
本题答案
查看答案
答案解析
查看解析

本试题 “根据短文内容，从短文后的七个选项中选出能填放空白处的最佳选项。选项中有两项为多余选项。Physical activity is known to reduce the risk of some disease...” 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

发现相似题

与“根据短文内容，从短文后的七个选项中选出能填放空白处的最佳...”考查相似的试题有：