Is Fresh Air Really Good for You? We all grew up hearing people tell us to "go out and get some fresh air." 36 According to recent studies, the answer is a big YES, if the air quality in your camping area is good. 37 If the air you're breathing is clean — which it would be if you're away from the smog of cities — then the air is filled with life-giving, energizing oxygen. If you exercise out of doors, your body will learn to breathe more deeply, allowing even more oxygen to get to your muscles (肌肉) and your brain. Recently, people have begun studying the connection between the natural world and healing (治愈). 38 In these places patients can go to be near nature during their recovery. It turns out that just looking at green, growing things can reduce stress, lower blood pressure, and put people into a better mood (情绪). Greenery is good for us. Hospital patients who see tree branches out their window are likely to recover at a faster rate than patients who see buildings or sky instead. 39 It gives us a great feeling of peace. 40 While the sun's rays can age and harm our skin, they also give us beneficial Vitamin D. To make sure you get enough Vitamin D — but still protect your skin — put on sunscreen right as you head outside. It takes sunscreen about fifteen minutes to start working, and that's plenty of time for your skin to absorb a day's worth of Vitamin D. 1. 36 A: Fresh air cleans our lungs. B: So what are you waiting for? C: Being in nature refreshes us. D: Another side benefit of getting fresh air is sunlight. E: But is fresh air really as good for you as your mother always said? F: Just as importantly, we tend to associate fresh air with health care. G: All across the country, recovery centers have begun building Healing Gardens. 2. 37 A: Fresh air cleans our lungs. B: So what are you waiting for? C: Being in nature refreshes us. D: Another side benefit of getting fresh air is sunlight. E: But is fresh air really as good for you as your mother always said? F: Just as importantly, we tend to associate fresh air with health care. G: All across the country, recovery centers have begun building Healing Gardens. 3. 38 A: Fresh air cleans our lungs. B: So what are you waiting for? C: Being in nature refreshes us. D: Another side benefit of getting fresh air is sunlight. E: But is fresh air really as good for you as your mother always said? F: Just as importantly, we tend to associate fresh air with health care. G: All across the country, recovery centers have begun building Healing Gardens. 4. 39 A: Fresh air cleans our lungs. B: So what are you waiting for? C: Being in nature refreshes us. D: Another side benefit of getting fresh air is sunlight. E: But is fresh air really as good for you as your mother always said? F: Just as importantly, we tend to associate fresh air with health care. G: All across the country, recovery centers have begun building Healing Gardens. 5. 40 A: Fresh air cleans our lungs. B: So what are you waiting for? C: Being in nature refreshes us. D: Another side benefit of getting fresh air is sunlight. E: But is fresh air really as good for you as your mother always said? F: Just as importantly, we tend to associate fresh air with health care. G: All across the country, recovery centers have begun building Healing Gardens.
6 . Human beings are not alone in having invented vaccination, while honeybees got there first and they can run what look like vaccination programmes, which has been confirmed by Gyan Harwood of the University of Illinois, Urbana-Champaign. Queen bees vaccinate their eggs before they are laid. But the question is how the queen receives her antigen supply, for she lives purely on royal jelly, a substance secreted by nurse bees when they are in the life stage of feeding the young. Dr Harwood wondered if the nurses combined the royal jelly they produced with pieces from pathogens they had consumed while eating something brought in from outside. To test this idea, they collected about 150 nurse bees and divided them among six queenless mini hives equipped with the young to look after. They fed the nurses on sugar-water, and for three of the hives they added Paenibacillus larvae, a bacterium causing a disease, to sugar-water. Dr Harwood and Dr Salmela labeled the bacteria with a certain dye, to make them easy to track. And, sure enough, microscope confirmed that Paenibacillus larvae were getting into royal jelly secreted by those bees which had been fed with the sugar-water. Moreover, examination of this royal jelly revealed higher levels of defensive substance, compared with royal jelly from bees that had not been mixed with Paenibacillus larvae. This substance is thought to help bee immune systems fight against bacterial infections. All told, these findings suggest that nurse bees are indeed, via their royal jelly, passing antigens on to the queen, then into eggs. They also mean, because the young receive royal jelly for the first few days after they hatch, the nurses are giving the young the second antigens. Each young bee is therefore being vaccinated twice.【小题1】What puzzled Dr Harwood from paragraph 2?A．What the royal jelly consists of.B．Where nurse bees receive pathogens.C．How the antigen come into the queen bees' bodies.D．Whether honeybees run vaccination earlier than man.【小题2】How did Dr Harwood develop his experiment?A．By dividing bees into different roles.B．By keeping track of the special bacterium.C．By changing the components of royal jelly.D．By observing nurse bees' different behaviors.【小题3】What can we infer according to the results of the experiment?A．Nurse bees are the key to vaccination for bee group.B．The nurse bees pass the antigen only to the queen.C．Bacteria-used royal jelly has fewer defense substances.D．Two vaccinations are given to young bees by caregivers directly.【小题4】Where is the text probably taken from?A．A pet guide.B．A social website.C．An official document.D．A medical magazine.
Much of the work in today's world is accomplished (完成) in teams. Most people believe the best way to build a great team is to gather a group of the most talented individuals. 46 Companies spend millions hiring top business people. Is their money well spent? 47 They focused on football, basketball and baseball. The results are mixed. For football and basketball, adding talented players to a team proves a good method, but only up to the point where 70% of the players are top talent: above that level the team's performance begins to decline. Interestingly, this trend isn't evident in baseball where additional individual talent keeps improving the team's performance. To explain this phenomenon, the researchers explored the degree to which a good performance by a team requires its members to coordinate (协调) their actions. 48 In baseball, the performance of individual players is less dependent on teammates. They conclude that when task interdependence is high, team performance will suffer when there is too much talent, while individual talent will have positive effects on team performance when task interdependence is lower. If a basketball star is, for example, trying to gain a high personal point total, he may take a shot himself when it would be better to pass the ball to a teammate, affecting the team's performance. Young children learning to play team sports are often told, "There is no I in TEAM." 49 Another possibility is that when there is a lot of talent on a team, some players may make less effort. Just as in a game of tug-of-war (拔河), whenever a person is added, everyone else pulls the rope with less force. 50 An A-team may require a balance — not just A players, but a few generous B players as well. 1. 46 A: It's not a simple matter to determine the nature of talent. B: Sports team owners spend millions of dollars attracting top talent. C: The group interaction and its effect drew the researchers' attention. D: Stars apparently do not follow this basic principle of sportsmanship. E: Several recent studies examined the role of talent in the sports world. F: Building up a dream team is more complex than simply hiring the best talent. G: This task interdependence distinguishes baseball from football and basketball. 2. 47 A: It's not a simple matter to determine the nature of talent. B: Sports team owners spend millions of dollars attracting top talent. C: The group interaction and its effect drew the researchers' attention. D: Stars apparently do not follow this basic principle of sportsmanship. E: Several recent studies examined the role of talent in the sports world. F: Building up a dream team is more complex than simply hiring the best talent. G: This task interdependence distinguishes baseball from football and basketball. 3. 48 A: It's not a simple matter to determine the nature of talent. B: Sports team owners spend millions of dollars attracting top talent. C: The group interaction and its effect drew the researchers' attention. D: Stars apparently do not follow this basic principle of sportsmanship. E: Several recent studies examined the role of talent in the sports world. F: Building up a dream team is more complex than simply hiring the best talent. G: This task interdependence distinguishes baseball from football and basketball. 4. 49 A: It's not a simple matter to determine the nature of talent. B: Sports team owners spend millions of dollars attracting top talent. C: The group interaction and its effect drew the researchers' attention. D: Stars apparently do not follow this basic principle of sportsmanship. E: Several recent studies examined the role of talent in the sports world. F: Building up a dream team is more complex than simply hiring the best talent. G: This task interdependence distinguishes baseball from football and basketball. 5. 50 A: It's not a simple matter to determine the nature of talent. B: Sports team owners spend millions of dollars attracting top talent. C: The group interaction and its effect drew the researchers' attention. D: Stars apparently do not follow this basic principle of sportsmanship. E: Several recent studies examined the role of talent in the sports world. F: Building up a dream team is more complex than simply hiring the best talent. G: This task interdependence distinguishes baseball from football and basketball.
There are __________ doctors and nurses working hard in that hospital.A. thousandB. two thousandC. two thousandsD. two thousands of
—She asked you when _________ again?—Tell her that I"ll let her know when he _________.[ A] he came; comes [ B ] would he come ; will come[ C] he came; will come [ D] he would come ; comes
Reading aloud every day is one of most useful methods in learning English.A. aB. anC. theD. /
My American friend knows my problem because I（）my ideas with him.A. have changedB. changedC. have exchangedD. exchanged
Although we are very good friends I_George.A. have nothing in common withB. have something in common withC. have nothing in commonD. have much in common with
The result of every accident ,however ____,is a rise in the cost of insurance.A. radicalB. rareC. reluctantD. minor
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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.
选择合适的单词补全句子。-|||-I __ in the city.-|||-live lives
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个 字母 ) To aut _ _ _ _ _ a factory , office , or industrial process means to put in machines which can do the work instead of people.
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.
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个字母 ) A seq----- of events or things is a number of events or things that come one after another in a particular order.
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
一、拼写合适的单词补全句子（答案不区分大小写；单词提示中一根小短线代表一个字母） If someone is __ob---__ , they are extremely fat.
Elder and weaker Mr. Mag paid_visits to his old friends.A. scarceB. rare()C. insufficientD. inadequate
ⅢComplete the following sentences with the given sentence structures-|||-get ready for.sa为························备-|||-e.g.Susan has to buy a lot of things to get ready for her trip.(苏珊不得不买很多东西为旅行做准备。)-|||-1 The boy got up early to __ (为上学做准备).-|||-2 I have a lot of work to do to __ (为明天做准备).
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个 字母 ) To enh ---- something means to improve its value, quality, or attractiveness.
These drugs are available over-the-counter without a(n)__________. （）A. infectionB. dosageC. prescription
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中根小短线代表一个 字母 ) A va---- is a space that contains no air or other gas.
拼写合适的单词补全句子 ( 答案不区分大小写 ; 单词提示中一根小短线代表一个 字母 ) If there is a bo-- in the economy, there is an increase in economic activity.
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
选择合适的单词补全句子
拼写合适的单词补全句子(答案不区分大小写;单词提提示中一根小短线代表一个字母)Something that is inf- - - - - has no limit,end,or edge.
拼写合适的单词补全句子（答案不区分大小写；单词提示中一根小短线代表一个字母） Someone or something that is so---- is very serious rather than cheerful or humorous.
question or statement.Hot pot is a traditional dish in China. It is believed to date back more than 1,000 years to the time of the Jin Dynasty. Hot pot's origins can be found in the dining practices of Mongolian horsemen who rode across the steppe and into northern China. Legend has it that the Mongols used their helmets as pots to simmer (炖) broth (汤底) over open fires, and cooked chunks of meat in the broth.Hot pot cooking seems to have spread to northern China during the Tang Dynasty. In the regional variations developed with different ingredients such as seafood. In the centuries that witnessed the growth of the Song Dynasty, hot pot moved — and changed — further south, with each successive region adapting it to their local ingredients and tastes.The ingredients in a hot pot vary a lot from region to region. Perhaps the most famous hot pot is the Chongqing or Sichuan hot pot. It features a dark red broth chock-full (塞满了的) of spices, chili peppers, and the uniquely mouth-numbing Sichuan peppers. In Beijing and elsewhere in the north, hot pot broth tends to be mild and, compared to its racy southern "cousins", a little light. In the northeast of China, a kind of local sauerkraut (酸菜) is used to add some tang (强烈的味道), making the broth a bit sour. People can choose a version of hot pot according to their taste.1 Hot pot is believed to date back more than 1,000 years to the time of _______.A. the Jin Dynasty B. the Tang DynastyC. the Song Dynasty D. the Yuan Dynasty
The coming of the railways in the 1830s ________ our society and economic life.A. transferredB. transformedC. transportedD. transmitted