回答下列各题 Its difficult to estimate the number of youngsters involved in home schoolin

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回答下列各题：

What's does the man mean？

A.Nobody can be the best.

B.Do as well as you can.

C.It’s difficult to do something important.

D.It's impossible to do something important.

uch less 36 to adopt all kinds of extreme weight control 37 , such as vomiting(催吐), using laxatives (泻药) or diet pills. A study surveying more than 2,500 American high school students found that gifts who ate five or more family meals a week had a much healthier relationship with food in later life. The research, published in international journal Archives of Pediatrics and Adolescent Medicine, polled students aged 13 to 17 in 1999 who were 38 up five years later. Regular family meals were found to have a protective effect 39 of the girls age, weight, socio-economic status, dieting 40 or relationship with her family. Experts say doctors should encourage families to have dinner at the table instead of on the couch in front of the television to 41 against serious eating disorders. Belinda Dalton, director of eating disorders clinic The Oak House, said eating with family helped "nomnalise (正常化) " young peoples relationship with food. " When adolescents are feeling that theyre not coping they turn to something that they can control and food is something 42 and accessible for them to control. Clearly, if theyre sitting with their family on a regular basis then their family can be more in control of their eating," Ms Dalton said. "Its about, young people feeling connected with their family and that builds self-esteem and sense of worth and that can 43 very actively against someone developing an eating disorder. " An eating disorders expert, Kirsty Greenwood, said meal times were often difficult for sufferers. "It is 44 that they feel very ashamed of their eating habits and often wont eat with other people. Perhaps its becausee they havent 45 the importance of the family meal in their growing up," she said.

A.available

B.behaviors

C.examined

D.experienced

E.favorable

F.followed

G.habits

H.likely

potential

prohibit

protect

regardless

tendencies

typical

0. work

tes for the last ten years. Computers used to be large, expensive machines that were very difficult to use. But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses. Computers have been designed to store information and compute problems that are difficult for human beings to work out. Some have voices that speak with the operators. Stores use computers to keep records of their inventories (库存货物) and to send bills to their customers. Offices use computers to copy letters, record business and keep in touch with other offices. People have been using computers in their homes to keep track of the money they spend. One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. People also have been buying home computers to play computer games, watch movies and listen to concerts at home. They have become very popular indeed. Computers used to _______.

A.work rapidly

B.be large and expensive

C.be easy to use

D.be used for fun

that normal-weight people are in fact at higher risk of some diseases compared to those who are overweight. And there are health conditions for which being overweight is actually ___2___. For example, heavier women are less likely to develop calcium deficiency than thin women. ___3___ among the elderly, being somewhat overweight is often an ___4___ of good health. Of even greater ___5___ is the fact that obesity turns out to be very difficult to define. It is often defined ___6___ body mass index, or BMI. BMI ___7__ body mass divided by the square of height. An adult with a BMI of 18 to 25 is often considered to be normal weight. Between 25 and 30 is overweight. And over 30 is considered obese. Obesity, ___8___,can be divided into moderately obese, severely obese, and very severely obese. While such numerical standards seem ___9___ , they are not. Obesity is probably less a matter of weight than body fat. Some people with a high BMI are in fact extremely fit, ___10___ others with a low BMI may be in poor ___11___ .For example, many collegiate and professional football players ___12___ as obese, though their percentage body fat is low. Conversely, someone with a small frame. may have high body fat but a ___13___ BMI. Today we have a(an) ___14___ to label obesity as a disgrace.The overweight are sometimes___15___ in the media with their faces covered. Stereotypes ___16___ with obesity include laziness, lack of will power,and lower prospects for success.Teachers,employers,and health professionals have been shown to harbor biases against the obese. ___17___very young children tend to look down on the overweight, and teasing about body build has long been a problem in schools. Negative attitudes toward obesity,____18____in health concerns,have stimulated a number of anti-obesity____19____.My own hospital system has banned sugary drinks from its facilities. Many employers have instituted weight loss and fitness initiatives.Michelle Obama has launched a high-visibility campaign____20____childhood obesity,even claiming that it represents our greatest national security threat. 请在第__1__处填上正确答案。

A.denied

B.conduced

C.doubled

D.ensured

form. of anunfavorable trade bal- ance (贸易逆差)with-other nations. Such an imbalance exists when the total valueof a country's imports ex- ceeds that of its exports. For example, if a countrybuys $ 250 billion of products from other countries, yet sells only $ 100billion of its own products overseas, its trade deficit is $ 150 billion. Manyunderdeveloped nations find themselves in this position because they lacknatural resources or the industrial capacity to use these resources, and thushave to import raw materials or manufactured goods. One effect of a trade deficit is the flowof currency (货币)out of a country. In the case of an underdeveloped nation, this cancause many financial difficulties, including failure to meet debt payments andobstacles to creation of an industrial base. Even in the case of a fullydeveloped nation such as the United States, a large tradedeficit is reason for alarm. American products, made by well-paid workers in USindustries, cost more to produce than those made in places like Asia, wherelabor and material costs are much lower. Money spent on foreign products ismoney not spent on items produced by domestic industries. Whatis the passage mainly about？

A. Several worldwide economic problems.

B. The causes and consequences of tradedeficit.

C. Lack of resources in underdevelopedcountries.

D. The value of exports against imports.

阅读文章，回答下列各题： Some people seem to have a knack(诀窍) for learning languages.They can pick up new vocabulary, mas-ter rules of grammar, and learn to writein the new language much more quickly than other people. They do not seem to beany cleverer than others. What makes language learning so much easier for them？Perhaps if we take a close look at these successful language learners, we maydiscover a few techniques which make language learn-ing easier for them. Firstly, successful language learners areindependent learners. They do not depend on the book or the teach-er; they drather discover their own way to learn the language than wait for the teacherto explain everything.They try to find the sentence patterns, the rules and themeaning of the new word by themselves. They are good guessers. They look forclues and form. their own conclusions. When they guess wrong, they guess again.They try to learn from their mistakes. Besides,successful language learning is active learning. Therefore, successful learnersdo not wait for achance to use the language; they look for such a chance. Theyfind people who speak the language and they ask these people to correct themwhenever they make a mistake. They will try anything to communicate. They are notafraid to repeat; they are willing to make mistakes and try again. Whencommunication is difficult, they can accept information that is inexact orincomplete. It is more important for them to learn to think in the language thanto know every word s meaning. Finally,successful language learners are learners with a purpose. They want to learnthe language because they have an interest in the language and the people whospeak it. It is necessary for them to learn the language in order to communicatewith these people and to learn from them. Successful language learners are independent, so successful learners __________ A．depend on the book or theteacher B．wait for the teacher toexplain everything C．learn from their mistakes D．discover their own way tolearn languages

ue to stamp collectors. A mistake on one inexpensive postage stamp has made the stamp worth a million and a half times its original value. More than one hundred years ago in the British colony of Mauritius, a small island in the Indian Ocean, the mistake was made. In 1847 an order for stamps .was sent to a London printer -- Mauritius was to become the fourth country in the world to issue stamps. Before the order was filled and delivered, a bail was planned at Mauritius' s Government House, and stamps were needed to send out the invitations. A locai printer was instructed to copy the design for the stamps. He accidentally inscribed the words "Post Office" instead of "Post Paid" on the severai hundred stamps that he printed. Today there are only twenty-six of these misprinted stamps left-fourteen One Penny Orange - Reds and twelve Two Penny Blues. Because of the Two Penny Blues' rareness and age, collectors have paid as much as $16,800 for it. Over a century ago, Mauritius__________

A. was an independent country

B. was a smail island in the Pacific Ocean

C. belonged to India

D. was one of the British colonies

orld sales. It is a truly international commodity, and today more than 50 countries in the world grow coffee beans. (0)________13 ICO consists of61 governments, 43 of which are exporters and 18 of which are importers. The organi- zation helps coffee producers and promotes coffee consumption worldwide. ICO esti- mates that world production next year will reach 97. 5 million bags, ll. 3 million bags higher than the current year. (8)________ As the largest producing country, Brazil is par- ticularly important in the coffee world. In1994 Brazil was responsible for 25% of world production, Colombia was next with13.4%, Indonesia had 7.5%, Mexico4. 7%, Guatemala 3.8% and Ethiopia and Vietnam were equal with 3.4%. Coffee is a tough crop, and can be grown in areas where it is difficult or impossible to grow other crops. (9 )________ However, disease is always a problem for coffee production, as we can see in some parts of South America at the moment. ICO is active in educating farmers about avoiding disease and dealing with problems when they occur. The distribution chain varies from country to country, explains Pablo Dubois. In most countries the smaller farmers sell their crop to a local trader, who then sells it on to ex- porters. There are, however, other distribu- tion systems. (10 )________ Some countries, like Vietnam, have special government mar- keting organizations for coffee. Coffee prices often vary greatly from one year to the next. In 1997, for example there was a large rise in the world price, which was immediately felt by the consumer. Rising prices always result in a drop in sales, which will have a bad effect on those developing countries which are highly dependent on foreign exchange from coffee exports. (11 )________ In the opinion of Pablo Dubois, the biggest problem for his organization is to create greater consumer awareness of the different varieties of coffee and different ways of preparing it. (12 ) ________ICO is therefore concentrating its promotional activities on Russia and China. It is also encouraging environmentally friendly coffee production, and last years seminar on coffee and the environment created a lot of interest. The future looks bright for the coffee industry. It is estimated that consumption over the next few years will continue to rise steadily. New markets like Eastern Europe and China are expected to develop fast. A．As a result, the membership now represents 94% of all exporters and 60% of all importers. B．In some of these countries, this can amount to as much as 50% of all export earnings. C．In North America, most consumers already have above-average knowledge of the range available. D．For example, frost and wind are particularly damaging to coffee crops. E Larger coffee growers, for example, frequently export directly. F．The main reason for this is higher Brazilian output as production recovers from weather damage to crops. G．It is cultivated in mountain regions which can only be reached by animal transport,and in other difficult areas where modern agricultural equipment cannot be used. __________

s dutifully do his homework．The following issome useful advice for helping them deal with their homework． Set a regular time and place for study．Give homework its ownspecial time and place，and if your child is in middleor high school，let her set her own timetable． Take it step by step．Children may getoverwhelmed(压倒)by too much homework they have to do．Encourage your child to calmly work out what needs to be done andhow much time it will take，and then make a plan．Help your child break homework down into manageable steps． Help out．You shouldn’t have to do your child’s homeworkor re—teach the material covered in class．but you canhelp out by showing your interest and by encouraging independent(独立的)problem solving． Praise a job well done．Kids，no matter what their age，need to know thatthey are doing a good job．Praise them for theirsuccesses and encourage them to keep up the good work．Alittle praise will go a long way in building healthy study habits． For whom is the textmainly written？

A.Parents．

B.Teachers．

C.Headmasters．

D.Students．

hers learned that4-day-old could understand 26______and subtraction. Now, British research psychologist Graham Schaferhas discovered that infants can learn words for uncommon things long before they can speak. He foundthat 9-month-old infants could be taught, through repeated show-and-tell, to 27______the names of objectsthat were foreign to them, a result that 28______in some ways the received wisdom that, apart from learningto29______ things common to their dally lives, children dont begin to build vocabulary until well into theirsecond year. "Its no 30______that children learn words, but the words they tend to know are words linkedto 31______situations in the home," explains Schafer. "This is the first demonstration that we can choosewhat words the children will learn and that they can respond to them with an unfamiliar voice 32______in anunfamiliar setting. " Figuring out how humans acquire language may 33______why some children learn to read and writelater than others, Schafer says, and could lead to better treatments for developmental problems. Whatsmore, the study of language 34______offers direct insight into how humans learn. "Language is a test casefor human cognitive development," says Schafer. But parents eager to teach their infants should takenote : even without being taught new words, a control group 35______the other infants within a few months."This is not about advancing development," he says. "Its just about what children can do at an earlierage than what educators have often thought. 第(26)题__________