* 本题备选项需点击原文空格处获取，在列表上点选即可。 Steel is valued for its reliability, but not when it gets cold. Most forms of steel (26)_____ become brittle (脆的) at temperatures below about -25°C unless they are mixed with other metals. Now, though, a novel type of steel has been developed that resists (27)_____ at much lower temperatures, while retaining its strength and toughness—without the need for expensive (28)_____. Steel’s fragility at low temperatures first became a major concern during the Second World War. After German U-boats torpedoed (用鱼雷攻击) numerous British ships, a 2700-strong fleet of cheap-and-cheerful “Liberty ships” was introduced to replace the lost vessels, providing a lifeline for the (29)_____ British. But the steel shells of hundreds of the ships (30)_____ in the icy north Atlantic, and 12 broke in half and sank. Brittleness remains a problem when building steel structures in cold conditions, such as oil rigs in the Arctic. So scientists have (31)_____ to find a solution by mixing it with expensive metals such as nickel. Yuuji Kimura and colleagues in Japan tried a more physical (32)_____. Rather than adding other metals, they developed a complex mechanical process involving repeated heating and very severe mechanical deformation, known as tempforming. The resulting steel appears to achieve a combination of strength and toughness that is (33)_____ to that of modern steels that are very rich in alloy content and, therefore, very expensive. Kimura’s team intends to use its tempformed steel to make ultra-high strength parts, such as bolts. They hope to reduce both the number of (34)_____ needed in a construction job and their weight—by replacing solid supports with (35)_____ tubes, for example. This could reduce the amount of steel needed to make everything from automobiles to buildings and bridges.
The hungry children are going to have a midnight _ at the camp.A. feastB. celebrityC. banquetD. festival
Children with attention problems in early childhood were 40% less likely to graduate from high school, says a new study from Duke University.The study included 386 kindergarteners from schools in the Fast Track Project, a multi-site clinical trial in the U.S. that in 1991 began tracking how children developed across their lives.With this study, researchers examined early academic attention and socio-emotional skills and how each contributed to academic success into young adulthood.They found that early attention skills were the most consistent predictor of academic success, and that likability by peers also had a modest effect on academic performance.By fifth grade, children with early attention difficulties had lower grades and reading achievement scores than their peers. As fifth-graders, children with early attention problems obtained average reading scores at least 3% lower than their contemporaries' and grades at least 8% lower than those of their peers. This was after controlling for IQ, socio-economic status and academic skills at school entry.Although these may not seem like large effects, the impact of early attention problems continued throughout the children's academic careers. Lower reading achievement scores and grades in fifth grade contributed to reduced grades in middle school and thereby contributed to a 40% lower high school graduation rate."The children we identified as having attention difficulties were not diagnosed with attention deficit hyperactivity disorder(注意力缺乏多动症)(ADHD), although some may have had the disorder. Our findings suggest that even more modest attention difficulties can increase the risk of negative academic outcomes", said David Rabiner, an associate dean of Duke's Trinity College of Arts & Sciences, whose research has focused on ADHD and interventions to improve academic performance in children with attention difficulties.Social acceptance by peers in early childhood also predicted grades in fifth grade. Children not as liked by their first-grade peers had slightly lower grades in fifth grade, while those with higher social acceptance had higher grades."This study shows the importance of so-called 'non-cognitive' or soft skills in contributing to children's positive peer relationships, which, in turn, contribute to their academic success, " said Kenneth Dodge, director of the Duke Center for Child and Family Policy.The results highlight the need to develop effective early interventions to help those with attention problems stay on track academically and for educators to encourage positive peer relationships, the researchers said."We're learning that student success requires a more comprehensive approach, one that incorporates not only academic skills but also social, self-regulatory and attention skills, " Dodge said. "If we neglect any of these areas, the child's development lags. If we attend to these areas, a child's success may reinforce itself with positive feedback loops."What is the focus of the new study from Duke University? A.The contributors to children's early attention.B.The factors that affect children's emotional well-being.C.The predictors of children's academic success.D.The determinants of children's development of social skills.What do we learn from the findings of the Duke study? A.Modest students are generally more attentive than their contemporaries.B.Children's academic performance may suffer from even slight inattention.C.Attention deficit hyperactivity disorder accounts for most academic failures.D.There are more children with attention difficulties than previously thought.What does the Duke study find about children better accepted by peers? A.They care less about grades.B.They are teachers' favorites.C.They are easy to get on with.D.They do better academically.What can we conclude from the Duke study? A.Children's success is related to their learning environment.B.School curriculum should cover a greater variety of subjects.C.Social skills are playing a key role in children's development.D.An all-round approach should be adopted in school education.
For many people, working out and alcohol are closely linked. Sports teams and training partners celebrate victories, bemoan defeats or mark the end of training sessions with a beer or three. Beer, in fact, provides a substantial portion of some exercisers' fluid intake after workouts. But whether exercise encourages people to drink and, likewise, whether drinking encourages people to exercise has been in dispute. Now new studies suggest that exercise may well influence when and how much people drink. Drinking may even affect whether people exercise, and, the findings suggest, the interplay between exercise and alcohol could be a good thing. Past studies have shown that people who exercise tend numerically also to be people who drink, and vice versa. But most of these previous studies had limitations. They relied, for instance, on people's ability to recall their exercise and drinking habits over the course of, say, the past year, which can be notoriously unreliable. They also rarely took into account participants' ages and gender, which affect how much people exercise and drink. What is the relationship between exercise and alcohol from the new studies? A. The interaction between exercise and alcohol are in dispute.B. Exercise may impact on how long and when people drink.C. The interaction between exercise and alcohol might be good.
The market for products designed specifically for older adults could reach ﹩30 billion by next year， and startups（初创公司） want in on the action． What they sometimes lack is feedback from the people who they hope will use their products． So Brookdale， the country's largest owner of retirement communication， has been inviting a few select entrepreneurs just to move in for a few days， show off their products and hear what the residents have to say． That's what brought Dayle Rodriguez， 28， all the way from England to the dining room of Brookdale South Bay in Torrance， California． Rodriguez is the community and marketing manager for a company called Sentab． The startups product． Sentab TV， enables older adults who may not be comfortable with computers to access email， video chat and social media using just their televisions and a remote control． "It's nothing new， it's nothing too complicated and it's natural because lots of people have TV remotes．" says Roanguez． But none of that is the topic of conversation in the Brookdale dining room． Instead， Rodriguez solicits residents' advice on what he should get on his cheeseburger and how he should spend the afternoon Playing cards was on the agenda， as well as learning to play mahjong（麻将）． Rodriguez says it's important that residents here don't feel like he's selling them something． I've had more feedback in a passive approach． "he says， "Playing pool， playing cards， having dinner， having lunch， all work better than going through a survey of questions． When they get to know me and to trust me， knowing for sure I'm not selling them something -there'll be more honest feedback from them． Rodriguez is just the seventh entrepreneur to move into one of Brookdale's 1， 100 senior living communities． Other new products in the program have included a kind of full-body blow dryer and specially designed clothing that allows people with disabilities to dress and undress themselves． "First and foremost， the residents love it． "says Smith． "It also provides Brookdale the opportunity to learn about and experience new technologies quickly and inexpensively and to make sure that we understand what residents want and need． Mary Lou Busch， 93， agreed to try the Sentab system． She tells Rodriguez that it might be good for someone， but not for her． "I have the computer and Face time， which I talk with my family on． " she explains． She also has an ipad and a smart phone． "So I do pretty much everything I need to do． Rodriguez takes it pretty well． "I' m not going to lie to you， I would've liked a more positive response． " he says． But "if people don't need it or want it， it's up to us to change， adapt it or make it more useful． To be fair， if Rodriguez had wanted feedback from some more technophobic（害怕技术的） seniors he might have ended up in the wrong Brookdale community． This one is located in the heart of Southem Califomia's aerospace corridor． Many residents have backgrounds in engineering， business and academic circles． But Rodriguez says he's still learning something important by moving into this Brookdale community： "People are more tech-skilled than we thought． And besides， where else would he learn to play mahjong？（1）What does the passage say about the startups？___A． They want to have a share of the seniors' goods marketB． They try to profit from promoting digital products to seniors．C． They invite seniors to their companies to try their productsD． They never lose time in upgrading products for seniors（2）Some entrepreneurs have been invited to Brookdale to___A． show senior residents how to use IT productsB． have an interview with potential customerC． conduct a survey of retirement communitiesD． collect residents' feedback on their products（3）What do we know about Sentab TV？___A． It is a digital TV which enjoys popularity among seniorsB． It is a TV specially designed for seniors to view programs．C． It is a communication system via TV instead of a computerD． It is a TV program catering to the interest of the elderly（4）Which of the following best explains "solicits" underlined in Paragraph 4？___A， rejectsB． offersC． voicesD． seeks（5）What does Rodriguez say is important in promoting products？___A． Knowing the likes and dislikes of customersB． Responding promptly to customer feedbackC． Winning trust from potential customersD． Demonstrating their superiority on the spot（6）What do we learn about the seniors in the Brookdale community？___A． Most of them enjoy a longer life than average people．B． They are quite at ease with high-tech productsC． Most of them are interested in using the Sentab．D． They have much in common with seniors elsewhere
Human beings must seek immediate solutions for problems leading to the rapid ________ of the earth's ozone layer.A. depletionB. deletionC. depressionD. depiction
Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.中国政府十分重视环境保护。近年来，中国在减少空气、水和土壤污染上取得了显著成效。为了不断改善人们的生活环境，中国采取了一系列有效措施，包括大力发展清洁能源，改善公共交通，推广共享单车，实施垃圾分类。通过这些措施，中国的城市和农村正在绿起来、美起来。中国还积极参与国际合作，为全球环境保护做出了重要贡献。
A significant reason that friendships often end when friendfs are apart for an ____ period of time is that one of both of the friends change.(extend)
"Other countries have a climate; in England we have weather." This statement is often made by Englishmen, which is both revealing and true. It is revealing because in it we see the Englishman insisting once again that what happens in England is not the same as what happens elsewhere; its truth can soon be found by any foreigner who stays in the country for longer than a few days. It has been said only in England can one experience four seasons in the course of a single day! Day may break as a balmy spring morning; an hour later black clouds may have appeared from nowhere and the rain may be pouring down. At midday conditions may be really wintry with the temperature down by about eight degrees or more. And then, in the late afternoon the sky will clear, the sun will begin to shine, and for an hour or two before darkness falls, it will be summer. In England one can experience almost every kind of weather except the most extreme. Some foreigners seem to be under the impression that for ten months of the year the country is covered by a dense blanket of fog; this is not true. The problem is that we never can be sure when the different sorts of weather will occur. Not only do we get several different sorts of weather in one day, but we may very well get a period of winter in summer and a period of summer in winter. This uncertainty about the weather has had a definite effect upon the Englishman's character; it tends to make him cautious, for example. The foreigner may laugh when he sees the Englishman setting out on a sunny morning wearing a raincoat and carrying an umbrella, but he may well regret his laughter later in the day! The English weather has also helped to make the Englishman adaptable. It has been said that one of the reasons why the English colonized (开拓殖民地) so much of the world was that, whatever the weather conditions they met abroad, they had already experienced something like them at home! And, of course, the weather's variety provides a constant topic of conversation. Even the most unfriendly of Englishmen is always prepared to discuss the weather. And, though he sometimes complains bitterly of it, he would not exchange it for the more predictable (可以预测的) climate of other lands.1. The word "balmy" in the second paragraph probably means ________.A) cloudyB) coldC) pleasant D) wet2. By giving the example in the fourth paragraph, the writer tries to tell the reader that ________.A) it is hard for a foreigner to understand Englishmen’s strange behaviorB) in England it is always sunny in the morning and rainy in the afternoonC) Englishmen are good at foretelling weatherD) the English weather has made English people very careful 3. By reading the last sentence, we can see that Englishmen's basic attitude towards their weather is ________.A) positive B) bitterC) helplessD) indifferent4. Which of the following words can't we use to describe the English weather?A) Varied.B) Uncertain.C) Changeable.D) Predictable. 5. Which of the following is not the writer's view?A) Weather is Englishmen's favorite topic of conversation.B) For most of the year it is foggy in England. C) The English weather has affected Englishmen's character.D) Englishmen could easily make themselves fit for the local weather wherever they went.
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Americans experience more food recalls (召回) today than they did five years ago, especially when it comes to meat and poultry (家禽). Meat and poultry recalls increased by two-thirds from 2013 to 2018, while food recalls overall went up 10%, according to the report recently published by the U.S. Public Interest Research Group.Meanwhile, the U.S. Centers for Disease Control and Prevention estimates (估计) 48 million people get sick, 128,000 are hospitalized and 3,000 die from food-borne disease each year in the U.S. "We are looking for the farm-to-fork preventative solutions," said Adam Garber, the research group's consumer watchdog. "By doing that, we can protect people's health."Over the five-year period, poultry posted the most recalls (168), followed by beef (137) and pork (128). The report shows the most serious meat recalls are on the rise. Among meat and poultry, the number of Class I recalls has increased by 83%, nearly doubling. Class I, the most serious of the recalls, is issued when there is a reasonable probability that the food will cause health problems or death.53. When would Class I recalls be issued?A. When the food is likely to cause health problems or death.B. When there are too many complaints from customers.C. When the food problem lasts for five years.D. When the product quality is below standard.
If you_________in a job for several years, you may be able to accumulate a lot of work experience and skills that would be beneficial to your future career development.A. have workedB. had workedC. have been workingD. had been working
We were always encouraged to focus on constructing the most out of the situation ______. A. at hand B. on hand C. in hand D. by hand
Never before in my career _ _ of an assignment A have l frightened B had I frightened C had I been frightened D have I been frightened
In some families,new adults and kids seem to slip in effortlessly, ____ they have been there all along.A. whileB. thoughC. becauseD. as though
1.A:Here is my business card.-|||-B: __-|||-A.Yes,the heat is killing me. B.Wonderful.Is it between-|||-school teams?-|||-C.Thank you for the nice party D.Thanks.This is mine.-|||-2.Alice:Is there any typical Chinese festival you celebrate every year?-|||-Bob: __-|||-A.Yes,the heat is killing me. B. I bet it will.-|||-C.It`s so stuffy and no wind at all. D.Yes,there are many.The-|||-Dragon Boat Festival is one of them.
Elder and weaker Mr. Mag paid_visits to his old friends.A. scarceB. rare()C. insufficientD. inadequate
Responsibilities ______becoming a father.A. charge forB. go withC. save forD. go through
The increase in international business and in foreign investment has created a need for executives with knowledge of foreign languages and skills in cross-cultural communication. Americans, however, have not been well trained in either area and, consequently, have not enjoyed the same level of success in negotiation in an international arena as have their foreign counterparts. Negotiating is the process of communicating back and forth for the purpose of reaching an agreement. It involves persuasion and compromise, but in order to participate in either one, the negotiators must understand the ways in which people are persuaded and how compromise is reached within the culture of the negotiation. In many international business negotiations abroad, Americans are perceived as wealthy and impersonal. It often appears to the foreign negotiator that the American represents a large multi-million-dollar corporation that can afford to pay the price without bargaining further. The American negotiator’s role becomes that of an impersonal supplier of information and cash. In studies of American negotiators abroad, several traits have been identified that may serve to confirm this stereotypical perception, while undermining the negotiator’s position. Two traits in particular that cause cross-cultural misunderstanding are directness and impatience on the part of the American negotiator. Furthermore, American negotiators often insist on realizing short-term goals. Foreign negotiators, on the other hand, may value the relationship established between negotiators and may be willing to invest time in it for long-term benefits. In order to solidify the relationship, they may opt for indirect interactions without regard for the time involved in getting to know the other negotiator. Clearly, perceptions and differences in values affect the outcomes of negotiations and the success of negotiators. For Americans to play a more effective role in international business negotiations, they must put forth more effort to improve cross-cultural understanding. [共5题](1)What kind of manager is needed in present international business and foreign investment? [本题2分]A. The man who represents a large multi-million-dollar corporation. B. The man with knowledge of foreign languages and skills in cross-cultural communication. C. The man who is wealthy and impersonal. D. The man who can negotiate with his foreign counterparts.
Dreams can be a rich source of ___________ for an artist. (inspire)
26)Could she picture him ___ politics with her father in the drawing-room at her home ?A. discussingB. to discussC. as to discussD. that discusses
23．有一串钥匙在沙发上。Aset of keys _______on the sofa./ There is _________on the sofa.24．问李老师要你的书吧。________Ms. Li ________yourbook!25．请给老赵打电话。_________Old Zhao ______13096935553..26．这条蓝色的裤子是他的吗？Isthis pair of trousers _________?27．我的父母在第一张照片里。_______________are in the first photo.28．谢谢你帮助我。Thankyou for ________________./ Thank you for _____________.29．那个女孩姓王。Thegirl’s __________is Wang./ The girl’s ______________is Wang.30．那只小狗叫什么名字？What’s__________the dog? / What’s ____________name?31．今天玩得开心点！___________today! / Have a good time today!32．这有两张漂亮的她家的全家福。Here_______two nice photos of her family.
Most children with healthy appetites are ready to eat almost anything that is offered them and a child rarely dislikes food (51) it is badly cooked. The way a meal is cooked and served is most important and an (52) served meal will often improve a child’s appetite. Never ask a child whether he likes or dislikes a food and never (53) likes and dislikes in front of him or allow anybody else to do so. If the father says he hates fat meat or the mother refuses vegetables in the child’s hearing he is (54) to copy this procedure. Take it (55) granted that he likes everything and he probably will. Nothing healthful should be omitted from the meal because of a (56) dislike. At meal times it is a good idea to give a child a small portion and let him (57) back for a second helping rather than give him as much as he is likely to eat all at once. Do not talk too much to the child (58) meal times, but let him get on with his food, and do not allow him to leave the table immediately after a meal or he will soon learn to swallow his food (59) he can hurry back to his toys. Under (60) circumstances must a child be coaxed or forced to eat.55（）。A. withB. asC. overD. for
These drugs are available over-the-counter without a(n)__________. （）A. infectionB. dosageC. prescription
The coming of the railways in the 1830s ________ our society and economic life.A. transferredB. transformedC. transportedD. transmitted
Fill in the blanks with the words given below.Change the form where necessary.Each word can be used only once. budget defy dilemma diverseloyalty manipulate objectivePerspective tackle urge （1）The ____ of the "upright"message is to ask people to save，while the "permissive"message asks people to spend.（2）If you find yourself in a（n） ____ about what is the right decision for your career，speak to a career counselor.（3）It is important for parents to listen to their children's opinion because they may have a very different ____ on the things they've seen.（4）To cater for the different tastes of athletes from all over the world，the organizers of the Beijing Winter Olympics prepared ____ dishes.（5）If you want to save money for a rainy day making a（n） ____ is the first step you may want to take because it gives you a clear plan.（6）The Chinese legend goes that Yue Fei's mother tattooed four Chinese characters on his back to remind him of the importance of ____ to the nation.（7）When children are addicted to online games，they would often ____ their parents and stay online for hours every day.（8）The report goes on to ____ the technicians to take a more active role in developing the standards of artificial intelligence.
6. The children will now play some pieces of music that they ______ themselves. A.were taught posed C.accomplished D.worked7. While she waited,she tried to ______ her mind with pleasant thoughts of the vacation. A.occupy pose C.think D.intensify8. In the film,the peaceful life of a monk ______ the violent life of a murderer. A.is compared with B.is compared to C.is contrasted to D.is contrasted with9. ______ to pay for an order is simplicity itself. A.Use plastic B.Using plastics C.Using plastic D.Used plastic10. Additional time is required for cooking or ______ homemade dishes. A.chill B.to chill C.chilled D.chilling
Whenever I have trouble ( ) many problems, I ask Jack for help.A. dealing withB. to deal withC. on dealing withD. deal with
The Harry Potter series, written by J.K. Rowling, is perhaps the most popular set of novels of the modern era. With seven books and many successful films to its name, the series has gathered about 15 billion dollars in sales. How did the series become so popular? The reason can be broken down into several areas.The first book in the series was rejected 12 times before it was picked up by Bloomsbury—a small publisher in England. So receiving this contract was Rowling's first step to success. However, getting a book contract does not ensure the success of a book. The story was soon loved by children and adults alike. In light of this, Bloomsbury Publishing published a second version of the books with “adult” (less colorful and more boring) book covers. This made it easier for a full range of ages to enjoy the series.Another factor that worked like a charm was that the publisher and Rowling herself, through the books, conducted midnight releases, promotions, and pre-ordering more readers. Customers who feared that their local bookstore would run out of copies responded by pre-ordering over 700,000 copies before the July 8, 2000 release.What does the underlined word “releases” (Para. 3) mean?A. The activity that frees or expresses energy or emotion.B. The announcement about the book’s publishing information.C. The sales of books that is available only at midnight.