The correct description of OR GATE?A. As long as one of the inputs is high, the output is high; Only when all inputs are low, the output is low.B. When all inputs are high, the output is high, otherwise the output is low.C. The output of a NOT gate is the opposite of the input.
Call it the learning paradox：the more you struggle and even fail while you're trying to learn new information，the better you're likely to recall and apply that information later． The learning paradox is at the heart of"productive failure，"a phenomenon identified by researcher Manu Kapur points out that while the model adopted by many teachers when introducing students to new knowledge providing lots of structure and guidance early on，until the students show that they can do it on their own makes intuitive sense，it may not be the best way to promote learning．Rather，it's better to let the learners wrestle with the material on their own for a while，refraining from giving them any assistance at the start．In a paper published recently，Kapur applied the principle of productive failure to mathematical problem solving in three schools． With one group of students，the teacher provided strong"scaffolding"--instructional support and feedback．With the teacher's help，these pupils were able to find the answers to their set of problems．Meanwhile，a second group was directed to solve the same problems by cooperating with one another，without any prompts from their instructor．These students weren't able to complete the problems correctly．But in the course of trying to do so，they generated a lot of ideas about the nature of the problems and about what potential solutions would look like．And when the two groups were tested on what they'd learned the second group"significantly outperformed"the first． The apparent struggles of the floundering (挣扎的) group have what Kapur calls a"hidden efficacy"：they lead people to understand the deep structure of problems，not simply their correct solutions．When these students encounter a new problem of the same type on a test，they're able to transfer the knowledge they've gathered more effectively than those who were the passive recipients of someone else's expertise． In the real world，problems rarely come neatly packaged，so being able to discern their deep structure is key．But，Kapur notes，none of us like to fail，no matter how often Silicon Valley entrepreneurs praise the beneficial effects of an idea that fails or a start-up company that crashes and burns．So we need to"design for productive failure"by building it into the learning process，Kapur has identified three conditions that promote this kind of beneficial struggle．First，choose problems to work on that"challenge but do not frustrate．"Second，provide learners with opportunities to explain and elaborate on what they're doing．Third，give learners the chance to compare and contrast good and bad solutions to the problems．And to those students who protest this tough-love teaching style：you'll thank me later． 66．Why does the author call the learning process a paradox？ A．Pains do not necessarily lead to gains． B．What is learned is rarely applicable in life． C．Failure more often than not feeds success． D．The more is taught，the less is learned． 67．What does Kapur disapprove of in teaching？ A．Asking students to find and solve problems on their own． B．Developing students'ability to apply what they learn． C．Giving students detailed guidance and instruction． D．Allowing students a free hand in problem solving． 68．What do people tend to think of providing strong scaffolding in teaching？ A．It will make teaching easier． B．It is a sensible way of teaching． C．It can motivate(激发) average students． D．It will build up students'confidence． 69．What kind of problem should be given to students to solve according to Kapur？ A．It should be able to encourage cooperative learning． B．It should be easy enough so as not to frustrate students． C．It should be solvable by average students with ease． D．It should be difficult enough but still within their reach． 70．What can be expected of this tough-love teaching style？ A．Students will be grateful in the long term． B．Teachers will meet with a lot of resistance． C．Parents will think it too harsh on their kids． D．It may not be able to yield the desired results．
【题目】Directions: In this section, you will hear three news reports. At the end of each news report, you will heatwo orthree questions. Both the news report and the questions will be spoken only once. After you hearquestion, you must choose the best answer from the four choices marked A), B), C) and D). Then marthe corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard1. A) He wanted to buy a home.C) He lost a huge sum of money.B)He suffered from a shock.D)He did an unusual good deed.2. A) Invite the waiter to a fancy dinner.C)Give some money to the waiter.B)Tell her story to the Daily News.D)Pay the waiter's school tuition.Questions 3 and 4 are based on the news report you have just heard.3. A) Whether or not to move to the state's mainland.B) How to keep the village from sinking into the sea.C) Where to get the funds for rebuilding their village.D) What to do about the rising level of the seawatcr.4. A) It takes too long a time.C) It has to wait for the state's final approval.B)It costs too much moncy.D) It faces strong opposition from many villagers.Questions 5 to 7 are based on the news report you have just heard.5. A) To investigate whether people are gratefulfor help.B) To see whether people hold doors open for strangers.C) To explore ways of inducing gratitude in people.D) To find out how people express gratitude.6. A) They induced strangers to talk with them.B) They helped 15 to 20 people in a bad mood.C) They held doors open for people at various places.D) They interviewed people who didnt say thank you.7. A) People can be educated to be grateful.C) Most people have bad days now and then.B)Most people express gratitude for help.D) People are ungrateful when in a bad mood.
A.What's important for you to be happy? Choose five things from the list below.-|||-Rank them from 1 (most important) to 5.-|||-square hobbies square helping other people square friends-|||-square family square a good education square enough money-|||-square good health square a nice house square a pet-|||-square a lot of money square having goals square other __
填空题 3分pledge, pose, attain, pursue, reap, emerge, transmit, inherit1. China's development does not [填空1] a threat to any other country. No matter what stage of development it reaches, China will never seek hegemony or engage in expansion.2. There is a fundamental improvement in the environment; the goal of building a Beautiful China is basically [填空2].3. Our government has [填空3] to become carbon neutral before 2060.
Murrey decided to go to high school，_ she was still homeless.A. even thoughB. as ifC. as thoughD. only if
(阅读理解,10.0分)根据文意选择适当的词语填空。Dear Mr. John Smith, I am __1__ of ABC Clothing Company. We were very pleased to receive your letter of June 15 inquiring about shirt ordering. The price of the shirt __2__ the order quantity. If your order number is less than 100 pieces, the price for one piece is 80 yuan and if you want more than 100 pieces (including 100 pieces), each piece will be 75 yuan. The shirts __3__ are novel in style and reasonable in price. If you want to learn more about our products, you can visit our company's website (www. abcclothing. com). __4__ our company's product price list is enclosed with the letter. We are appreciating to provide thoughtful service for you. Thank you for your previous letter again and __5__ your reply. Yours sincerely Wang Hua A BesidesB I am looking forward to C the sales manager D produced by our company E depend on(1)(2)(3)(4)(5)
Fill in the blanks with words or phrases from the box below . Change the form where necessary . awkward,blog, cable ,capture , craft ,crash, emotional, nest, solo, be obsessed with, but then, by one’s side, for once, in the form of, run through ,settle down, in total .1 Accidentally the whole incident was ____ by a young American photographer .2 . Those who had been kidnapped ( 绑架 ) described how they were scared and in physical and ___ pain .3 It was not long before help arrived ___ ten police officers.
Language in useComplete the sentences by translating the Chinese in brackets into English.1. It is high time that you____ (开始认真修改) your term paper.2. The solution to that math problem____ (突然出现在脑海中) when I was folding my clothes last night.3. She is____ (绝非一个没有经验的教师), but there is room for improvement in her teaching.4. George____ (回顾) his college years with a great deal of delight.5. Researchers need to____ (更仔细地观察) how students interpret the recognition and praise they get from their teachers.6. In Professor Smith's class, no one can____ (不交not handing in their homework on time.
Thomas Edison is often cited as an example of a great inventor who would never yield to hardships in his quest for new inventions and deserve his _ success.A. resultantB. resultingC. resultedD. result
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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.
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
Responsibilities ______becoming a father.A. charge forB. go withC. save forD. go through
In some families,new adults and kids seem to slip in effortlessly, ____ they have been there all along.A. whileB. thoughC. becauseD. as though
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.
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.
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
Dreams can be a rich source of ___________ for an artist. (inspire)
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.
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
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.
Elder and weaker Mr. Mag paid_visits to his old friends.A. scarceB. rare()C. insufficientD. inadequate
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
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.
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
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
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