练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情

     .Don’t call me between 12 o’clock and 1 o’clock, ________I am usually having lunch.

    A.during which time                  B.at which

    C.by which time                     D.by which

    【答案】A　

    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源： 题型：022

    语法填空

    　　Is 1 difficult for you to get up in the morning? Do you sometimes oversleep?Are you often late for work or school? Yes?Then Hiroyuki of Japan has a special bed for you. Hiroyuki's bed will get you up in the morning! Here is 2 it works.

    　　The bed is connected to an alarm clock. 3 , the alarm clock rings. You have a few minutes 4 (wake) up. Next, a tape recorder in the bed plays soft music or other pleasant sounds. The tape recorder in Hiroyuki's bed plays a recording of his girl-friend. She whispers 5 a sweet voice,“Wake up, darling, please. ”A few minutes later a second recording plays. The second re-cording can be loud music 6 unpleasant sound. Hiroyuki hears a recording of his boss. His boss shouts, “Wake up 7 (im-mediate), or you'll be late!”

    　　If you don't get up after the second re-cording, you 8 (be) sorry! A mechani-cal “foot” is in the bed. The mechanical foot kicks you 9 the head. Then the bed waits a few more minutes. What! You are still in bed! Slowly the top of the bed rises higher and 10 (high). The foot of the bed goes lower and lower. Finally, the bed is vertical (垂直). You slide off the bed and on-to the floor. You are out of bed and awake.

    查看答案和解析>>

    科目：高中英语 来源：湖北省黄冈、襄樊、孝感、宜昌、荆州2008届高三联合考试英语试题 题型：050

    　　For most of us, dieting is an annoying fact life, With so much information available, it can be difficult to tell which weight-loss strategies really work．Let’s start by taking a look at some confusing myths(荒谬)。

    　　1．All calories are created equal

    　　What you eat, not how much, is the main factor behind weight gain, In fact, the body burns many more calories digesting carbohydrates than it does digesting fat, For every 100 calories of carbohydrates we consume in excess(超过)of our daily requirement, only 75 are turned into body fat．But 97 of every 100 excess fat calories fat calories are turned into body fat．

    　　2．Desserts and fast foods are forbidden．

    　　Some experts advise against describing foods as “ good ”and “bad ”Even cakes, pies, and ice cream can be worked into a diet, Moderation is the key．Besides, a plain hamburger on a bun is still a healthful choice, So is baked chicken or a green salad with low–cal, dressing, But watch out for French fries, and fried chicken of fish．

    　　3．It makes no difference whether you’re top or bottom–heavy

    　　In fact, where weight is distributed makes all the difference, Recent studies suggest that people who store fat on the upper body(apple shape)rather than on hips and thighs(大腿)脚(pear shape) may have an increased rick of heart disease, There is probably little you can do to change how your body is genetically programmed to store fat, But you can lost excess weight overall．

    　　4．Fasting is the fastest diet．

    　　Some studies suggest that suddenly reducing calorie intake puts the body into “starvation mode ”,which causes it to conserve calories and decreases the rate of digestion．The more often you deprive yourself of food, the better your body may get at storing calories, So, in the long run, repeated fasting may actually weaken your weight–loss efforts．

    　　5．To keep weight off, simply watch what you eat

    　　According to studies, exercise combined with dieting ensures weight loss better than dieting alone does．Experts also agree that having regular, moderate exercise is more important than occasional exercises, Researchers encourage patients to take the stairs instead of the elevator and park the car far from where you are going and walking．

    　　6．It’s all your fault that you’re fat

    　　Research at the University of Pennsylvania, School of Medicine indicates that body shape and size are in large part decided by a person’s genes, In short, some people are naturally more likely to be fat than other．Moreover, someone who was fat in childhood will have more fat cells than a person of average weight．Once made, the cells may enlarge or shrink(缩小)，but they never disappear．

    　　Yet genes don’t have to control your shape, The size of your fat cells depends on you－on your eating habits and lifestyle, Most important, before getting caught up in dietary myths, let good sense shape your eating habits, Your body will thank you for it．

    (1)

    Which of the following statements is true?

    [　　]

    A．

    All calories are created equal．

    B．

    You can decide whether fat will be stored on your upper body or lower body．

    C．

    While you are on a diet never eat desserts and fast food

    D．

    The size of fat cells is decided by our eating habits and lifestyle

    (2)

    Which of the following statements is true about fat cells and genes?

    [　　]

    A．

    Everyone has the same amount of fat cells．

    B．

    The size of fat cells is fixed, They won’t become bigger or smaller

    C．

    Genes have nothing to do with obesity．

    D．

    Where you store your fat is genetically decided

    (3)

    The main reason why the author writes this article is to ________

    [　　]

    A．

    give new ideas

    B．

    correct certain misunderstandings

    C．

    encourage the readers to keep fit

    D．

    explain the concept of calories, fat cells, and genes

    (4)

    This article is ________

    [　　]

    A．

    descriptive

    B．

    creative

    C．

    persuasive

    D．

    educative

    查看答案和解析>>

    科目：高中英语 来源： 题型：阅读理解

    The human body is a living machine ,and, like all machines, it needs fuel to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy?

    The energy value of food is usually measured in calories. A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃.The number of calories people need per day is different, as the chart below shows. Also, the number of calories you use at any moment normally depends on the activity you are in. For example, you need more calories for standing than for sitting, more for running than for walking, and so on.

    The energy in food is mainly in the form of three kinds of chemical materials—carbohydrate（糖类）,protein and fat. Carbohydrate provides 3.8 Cal/gm（calories per gram） of energy, protein 4.0 Cal/gm and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the second chart shows.

    Chart Ⅰ

    CALORIES NEEDED PER DAY

    BABY

    750

    OFFICE WORKER

    2 700

    CHILD AGED 8

    2 100

    WOMAN FEEDING BABY

    2 700

    MAN OVER 70

    2 100

    BOY AGED 16

    3 000

    WOMAN

    3 600

    FARMER

    2 600

    Chart Ⅱ

     

    FAT

    PROTEIN

    CARBOHYDRATE

    MILK

    30%

    30%

    40%

    RICE

    5%

    10%

    85%

    PEANUTS

    60%

    30%

    10%

    1.____ calories are required to raise the temperature of 5 kg of water from 35 ℃ to 90 ℃?

    A.55　　　　　　　　 B.175　　　　　　 C.325　　　　　　 D.275

    2.If you lack for calories to support your running activities you’d better take more ____.

    A. milk　　　　　　 B. peanuts C. rice　　　　　　 D. milk and rice

    3.We may learn from the charts that ____.

    A. a child aged eight requires more than 3 times the amount of calories that a baby does

    B. a boy aged sixteen requires nearly twice the amount of calories that a boy aged eight does

    C. a mother with a baby to feed uses up more calories than a hard-working farmer each day

    D. an old man needs less calories than an 8-year-old boy on account of his less movement

    4.Which of the following statements agrees with the passage and the charts above?

    A. You need more calories for swimming that for mountain climbing.

    B. If you take an equal amount of Vitamin containing the calories you need, you don’t need to eat any food at all.

    C. Different people need different amounts of energy depending on their age, sex and the activities they are in.

    D.3 grams of milk provides 16.6 calories because carbohydrate provides 3.8 Cal/gm, protein 4.0 Cal/gm, and fat 8.8 Cal/gm.

     

    查看答案和解析>>

    科目：高中英语 来源：河北正定中学2009届高三第四次月考 题型：阅读理解

     

    For most of us, dieting is an annoying fact life. With so much information available, it can be difficult to tell which weight-loss strategies really work. Let’s start by taking a look at some confusing myths (荒谬)。

    1.All calories are created equal.

    What you eat, not how much, is the main factor behind weight gain. In fact, the body burns many more calories digesting carbohydrates than it does digesting fat ,For every 100 calories of carbohydrates we consume in excess (超过)of our daily requirement ,only 75 are turned into body fat .But 97 of every 100 excess fat calories are turned into body fat .

    2.Desserts and fast foods are forbidden.

    Some experts advise against describing foods as “ good ”and “bad ”.Even cakes ,pies ,and ice cream can be worked into a diet, Moderation is the key. Besides ,a plain hamburger on a bun is still a healthful choice ,So is baked chicken or a green salad with low –cal,dressing. But watch out for French fries, and fried chicken of fish .

    3.It makes no difference whether you’re top or bottom –heavy.

    In fact ,where weight is distributed makes all the difference. Recent studies suggest that people who store fat on the upper body (apple shape )rather than on hips and thighs (大腿)脚（pear shape ）may have an increased rick of heart disease.There is probably little you can do to change how your body is genetically programmed to store fat ,But you can lost excess weight overall .

    4.Fasting is the fastest diet .

    Some studies suggest that suddenly reducing calorie intake puts the body into “starvation mode ”,which causes it to conserve calories and decreases the rate of digestion .The more often you deprive yourself of food ,the better your body may get at storing calories ,So ,in the long run ,repeated fasting may actually weaken your weight –loss efforts.

    5.To keep weight off ,simply watch what you eat

    According to studies ,exercise combined with dieting ensures weight loss better than dieting alone does. Experts also agree that having regular, moderate exercise is more important than occasional exercises. Researchers encourage patients to take the stairs instead of the elevator and park the car far from where you are going and walking.

    6.It’s all your fault that you’re fat

    Research at the University of Pennsylvania, School of Medicine indicates that body shape and size are in large part decided by a person’s genes. In short ,some people are naturally more likely to be fat than other.Moreover, someone who was fat in childhood will have more fat cells than a person of average weight. Once made, the cells may enlarge or shrink (缩小),but they never disappear.

    Yet genes don’t have to control your shape ,The size of your fat cells depends on you ---- on your eating habits and lifestyle ,Most important ,before getting caught up in dietary myths ,let good sense shape your eating habits ,Your body will thank you for it .

    1.Whci of the following statements is true?

    A. All calories are created equal .

    B. You can decide whether fat will be stored on your upper body or lower body.

    C. While you are on a diet never eat desserts and fast food

    D. The size of fat cells is decided by our eating habits and lifestyle

    2.Which of the following statements is true about fat cells and genes?

    A. Everyone has the same amount of fat cells .

    B. The size of fat cells is fixed ,They won’t become bigger or smaller

    C. Genes have nothing to do with obesity.

    D. Where you store your fat is genetically decided

    3.The main reason why the author writes this article is to ___________

    A. give new ideas                 B. correct certain misunderstandings

    C. encourage the readers to keep fit D. explain the concept of calories ,fat cells ,and genes

    4.This article is ____________

    A. descriptive       B. creative         C. persuasive       D. educative

     

    查看答案和解析>>

    同步练习册答案