相關(guān)習(xí)題
 0  146578  146586  146592  146596  146602  146604  146608  146614  146616  146622  146628  146632  146634  146638  146644  146646  146652  146656  146658  146662  146664  146668  146670  146672  146673  146674  146676  146677  146678  146680  146682  146686  146688  146692  146694  146698  146704  146706  146712  146716  146718  146722  146728  146734  146736  146742  146746  146748  146754  146758  146764  146772  151629 

科目: 來(lái)源: 題型:

【題目】根據(jù)短文內(nèi)容的理解,選擇正確答案。 Today, we know that the role of vitamins and minerals goes way beyond the prevention of deficiency diseases (維生素缺乏癥) to actually preventing cancer and heart disease, the most fearsome killers of our time. With this knowledge has come the widespread call for nutritional supplementation (營(yíng)養(yǎng)補(bǔ)充) — and a confusing group of vitamin, mineral, and supplements lining the supermarket shelves.
Far from contributing to better health, however, nutritional supplements threaten to turn a scientific breakthrough into a nutritional disaster.
Promoters of vitamins and minerals — especially vitamins A, C, and E— would have consumers believe that the little vitamin pill in the bottle is all they need for good health. Take your vitamins in the morning, and you're covered. It's okay to eat fast foods for the rest of the day or skip meals to achieve today's fashionably skinny look. But vitamins and minerals are only one part of the nutritional puzzle. A diet rich in fiber (纖維) and balanced in carbohydrates and protein is essential for good health. You can't get these things from a nutritional supplement. The focus on vitamin and mineral supplements may actually be robbing us of the full nutrition we seek.
And no supplement can compare to the quality of nutrition found in natural sources. For example, our bodies turn carotenes (胡蘿卜素) from plant foods into vitamin A. Many supplements contain a single carotene, but natural sources are rich in many different carotenes. Many supplements contain a form of vitamin E that is made from chemicals, when natural vitamin E is more readily absorbed and used by the body. And science is still discovering the wealth of nutrients in foods.
You'd be hard-pressed to find a supplement as nutritionally comprehensive and powerful as a balanced diet. Even if you could, you'd pay much more than if you got the same nutritional value from natural sources.
But perhaps the greatest danger presented by nutritional supplements comes from the very real risks presented by self-medication. Anyone can walk into the market and buy as many different supplements as desired. The reported benefits of high dosages of certain nutrients have led some people to believe that the more the better. Many take several vitamin and mineral supplements without regard to possible consequences.
Surprising new research suggests that vitamin C pills may speed up hardening of the arteries, the underlying cause of heart attacks. Researchers said their findings support the recommendations of health organizations, which urge people to avoid high doses of supplements and to get their nutrients from food instead.
As appealing as they're made to sound, nutritional supplements are danger in disguise. If you're looking for good health, don't look on the supplement shelves of your supermarket. Look in the produce section instead.
(1)What has given rise to the great need for nutritional supplements?
A.The knowledge of deficiency diseases.
B.The low prices of nutritional supplements.
C.The frighteningly high death rate from cancer and heart disease.
D.The information about the role of vitamins and minerals in health.
(2)The "promoters" (Paragraph 3) most probably refers to ________.
A.businessmen
B.doctors
C.scientists
D.fast food lovers
(3)According to the passage, nutritional supplements ________.
A.are made from chemicals
B.are ineffective in supplying fiber
C.provide too much vitamin C
D.contain a kind of dangerous carotene
(4)By describing nutritional supplements as "danger in disguise" in the last paragraph, the writer means that they are ________.
A.of little help
B.of poor quality
C.potentially harmful
D.extremely poisonous

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】Education is not an end, but a means to an end. In other words, we do not educate children only for the purpose of educating them. Our purpose is to fit them for life.

In some modern countries it has for some time been fashionable to think that by free education for all—whether rich or poor, clever or stupid—one can solve all the problems of society and build a perfect nation. But we can already see that free education for all is not enough; we find in such countries a far larger number of people with university degrees refuse to do what they think to be "low" work, and, in fact, work with hands is thought to be dirty and shameful in such countries. But we have only to think a moment to understand that the work of a completely uneducated farmer is far more important than that of a professor. We can live without education, but we die if we have no food. If no one cleaned our streets and took the rubbish away from our houses, we should get terrible diseases in our towns.

In fact, when we say that all of us must be educated to fit us for life, it means that we must be educated in such a way that, firstly, each of us can do whatever work suited to his brains and ability and, secondly,that we can realize that all jobs are necessary to society, and that is very bad to be ashamed of one's work. Only such a type of education can be considered valuable to society.

1According to the passage, the purpose of education is _____.

A. to build a perfect world

B. to choose a system of education

C. to let everyone receive education fit for him

D. to prepare children mainly for their future work

2Which of the following is true according to the passage?

A. It's hard for university graduates to find jobs.

B. No one would like to do work with hands.

C. Education is not enough to build a perfect nation.

D. University graduates are ashamed of their work.

3In the writer's opinion, _____.

A. all the social problems can't be solved by education

B. free education for all probably leads to a perfect world

C. free education won't help to solve social problems

D. education can settle all of the world's problems

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】文中有10處錯(cuò)誤。請(qǐng)?jiān)谟绣e(cuò)誤的地方增加、刪除或修改某個(gè)單詞。
增加:在缺詞處加一個(gè)漏符號(hào)(∧),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線(﹨)劃掉。
修改:在錯(cuò)的詞下劃一橫線,并在該下面寫出修改后的詞。
注意:每處錯(cuò)誤及其修改均僅限一詞;
It is Mother's Day today. Though it's a western festival, it's popular in China now.
Mom has a full-time job, so she has to do most of the houseworks. She is a great mother. Both Dad or I planned to do something on Mother's Day. We get up early in the morning. Dad cleaned the house, and then went on shopping. When he came back, I found a bunch of flowers in her hand. I asked Mom to stay in the sitting room and I cooked in kitchen. The dishes what I cooked were Mom's favoritest. At dinner, we said to her, “Happy Mother's Day!” Mom was grateful and moving.

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】It is very ________ that she will ring me tonight.
A.likely
B.possibly
C.probably
D.perhaps

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】It is believed that if an event is _______, it will surely ______ the readers of the paper.
A.astonished; astonish
B.astonishing; be astonished
C.astonishing; astonish
D.astonished; be astonished

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】閱讀下面的短文,在標(biāo)有序號(hào)的空白處填入一個(gè)適當(dāng)?shù)脑~,或填入括號(hào)中所給單詞的正確形式,并將相應(yīng)的答案寫在答題紙上。
Emotional eating is when people use food as a way to deal with feelings of satisfying hunger. Believe it or not, we’ve all been there. Have you ever finished a whole bag of chips out of boredom or downed cookie after cookie while preparing a big test? But when done a lot — especially realizing it — emotional eating can affect weight, health, and overall well-being.
Understanding what drives emotional eating can help people steps to change it. One of the biggest myths about emotional eating is that it’s caused by feelings. Yes, people often turn to food when they’re stressed out, lonely, sad, anxious, or bored. But emotional eating can be linked to positive feelings too, like the romance of sharing dessert on Valentine’s Day or the celebration of a holiday feast. Sometimes emotional eating is tied major life events, like a death or a divorce. More often, though, it’s the countless little daily stresses cause someone (seek) comfort in food.
We’re all emotional eaters to a degree. But for some people emotional eating can be a real problem, (cause) serious weight gain or other problems. The trouble with emotional eating is that once the pleasure of eating is gone, the feelings that cause it remain. And you often may feel worse about eating the amount or type of food you like. That’s it helps to know the difference between physical hunger and emotional hunger.
Next time you reach for a snack, wait and think about which type of hunger is driving it.

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】I wouldn't think it ________ to ask him to ________ the club—he'll only refuse.
A.worthwhile; join
B.worthwhile; join in
C.worth; join
D.worth; attend

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】— Did you meet anyone ________ at the party?— No, in fact, I found the party rather ________.
A.interesting; boring
B.interested; boring
C.interesting; bored
D.interested; bored

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
Many adults are not aware of the very active social lives that their children lead. You might think that your young child does not yet have a social life.
They have minimal independence and are generally always supervised by an adult. Even so, it is a stage of their lives when huge amounts of personality development and emotional development take place.
One of the things that always makes me chuckle is when I am in the supermarket or out and about and I see a young mother with her child. The mother is often busy multi-tasking, picking up items, calculating prices and soothing her young child all at the same time, while the child is engaging with the people around them. Usually the mother is completely unaware that her child is engaging in social interaction. Some babies smile at every passing person, undoubtedly developing the charm that will open many doors for them in later life.
Aside from all of the incidental ways that your child engages in social interaction, it is important to purposely set up opportunities for your child to socialize and interact with other children their age. Households with many children can be ideal for providing natural opportunities for children to interact socially. However today’s typical household contains just one or two children.
Organizing play dates with other children their age is great, as is enrolling them in some type of activity for toddlers at the local library. Look around your community for activities that are safe, social and stimulating for your child and begin to purposefully involve your child in these activities for their social development.
A. Sometimes the child makes eye contact, some times an adult waves to the child or makes faces.
B. In reality though, even if your child spends the majority of their time right by your side, they interact directly or indirectly with everyone you interact with and more.
C. The fact is, many of the social skills that they learn as a young child will last them throughout their entire lifespan.
D. This development will affect their young social lives and, surprisingly to most, a lot of the social interaction that they will engage in for the remainder of their lives.
E. Anything aimed at children much younger than your child will bore them and anything aimed at children much older will frustrate them.
F. Taking young children to the local park to play while you watch and supervise is a great way to introduce them to playing with other children.
G. This gives them healthy opportunities to begin to develop socially.

查看答案和解析>>

科目: 來(lái)源: 題型:

【題目】假設(shè)你是李華。自從進(jìn)入高中后, 你的父母就不要你做家務(wù), 在家里父母也不敢大聲說(shuō)話。最近學(xué)校英文報(bào)"Student Voice"欄目征文, 你想據(jù)此給父母寫一封信, 談?wù)勀愕目捶? 發(fā)表在該欄目。注意:1.詞數(shù)100左右;2.可以適當(dāng)增加細(xì)節(jié), 以使行文連貫。
Dear Mom and Dad,
……
Yours
Li Hua

查看答案和解析>>

同步練習(xí)冊(cè)答案