To change you must not be afraid to take the first step. We will fail when we fail to try.A. bring upB. care aboutC. bring aboutD. set up
D Some radio signals were heard in 1967. They were coming from a point in the sky where there was unknown star. They were coming very regularly, too — about once a second, as if they were controlled by clock. The scientists who heard the signals did not tell anybody else. They were rather afraid to tell in case they frightened people. The signals were coming from a very small body—no bigger, perhaps than the earth. Was that why no light could be seen from it? Or were the signals coming from a planet that belonged to some other star? There was no end to the questions, but the scientists kept the news secret. "Perhaps there are intelligent beings out there." they thought, "who are trying to send messages to other planets, or to us?" So the news was not given to the newspaper. Instead, the scientists studied the signals and searched for others like them. Well, all that happened in 1967 and 1968. Since then scientists have learnt more about those strange, regular, radio signals. And they have told the story, of course. The signals do not come from a planet; they come from a new kind of star called a "pulsar"(脉冲星). Pulsars are strong radio stars. They are the smallest but the heaviest stars we know at present. And we can be sure of this: no intelligent beings are living on them. Until now over a hundred other pulsars have been found, and most of them are very like the first one. Recently, Chinese researchers have discovered six pulsars, which are super heavy remains of massive stars, using its Five-hundred-meter Aperture Spherical Radio Telescope, known as FAST, thus opening a "new era of Chinese original space discovery". Li Di, the telescope's deputy chief engineer, said FAST is set to be fully operational by the end of 2019. Meanwhile, scientists there will continue to test FAST and cooperate with foreign scientists on space exploration.The radio signals discussed in this passage _____.A. were regularB. were controlled by a clockC. were heard in 1967 onlyD. were secret messagesThe scientists did not tell people about the signals because _____.A. the signals stood for secret messagesB. people might be frightenedC. the signals stood for unimportant messagesD. people would ask them too many questionsA pulsar _____.A. is a well-known satelliteB. is a small and light starC. has intelligent beings that were known at that timeD. is a small heavy star sending out strong radio signalsWhich of the following is TRUE?A. The radio signals were sent by a sky body which was known at that time.B. Scientists have searched for pulsars for many years but found none.C. Chinese researchers have discovered six pulsars using FAST.D. Now is the new era of Chinese space discovery with perfect FAST.
大学生们主动教附近社区里的老人们使用智能手机和互联网。(take the initiative)______
The human brain contains 10 thousand million cells，and each of these may have a thousand connections．Such large numbers used to discourage us and cause us to dismiss the possibility of making a machine with human-like ability，but now that we have grown used to moving forward at such a pace we can be less sure．Quite soon，maybe in only 10or 20years perhaps，we will be able to create a machine as complex as the human brain，and if we can we will．It may then take us a long time to make it intelligent by loading in the right software or by changing the architecture but that too will happen．As the intelligence of robots increases to rival that of humans and as their cost declines through economies of scale，we may use them to expand our frontiers（前沿），first on earth through their ability to remain unharmed in the environments which are harmful to us．Thus，deserts may bloom and the ocean beds may be mined．Further ahead，by a combination of the great wealth this new age will bring and the technology it will provide，the construction of a vast，man-created world in space，home to thousands or millions of people，will be within our power．28．In what way can we make a machine intelligent？ ____ A．By collecting its 10 thousand million cells．B．By working hard for 10 or 20 years．C．By properly programming it or changing its structure．D．By moving forward at a pace as fast as possible．29．The underlined word"rival"means" ____ "．A．confirm B．anchor C．betray D．match30．What does the writer think about machines with human-like ability？ ____ A．He believes they will be useful to human beings．B．He believes that they will control us in the future．C．He is not quite sure in what way they may influence us．D．He doesn't consider the construction of such machines possible．31．What can be the best title of the article？ ____ A．What is the future world like？B．Will future machines replace humans？C．Future intelligent machines for humansD．Future intelligent machines out of control．
A _ addiction to money may not always be hurtful， but when taken in excess ，it is nearly always bad for the health .A soft B moderateC modernD middle
As kids we get used to asking for things, but somehow we lose this ability in adulthood. We ___ all sorts of excuses and reasons to avoid any possibility of criticism or rejection.A. put up withB. grapple withC. cope with D. come up with
eBay eBay is a global phenomenon-the world’s largest garage sale, online shopping center, ear dealer and auction site with 147 million registered users in 30 countries as of March 2005. You can find everything from encyclopedias to olives to snow boots to stereos to airplanes for sale. And if you stumble on it before the eBay overseers do, you might even find a human kidney or a virtual date. eBay Basics eBay is, first and foremost, an online auction site. You can browse through categories like Antiques, Boats, Clothing Accessories, Computers Networking, Jewelry Watches and Video Games. When you see something you like, you click on the auction title and view the details, including pictures, descriptions, payment options and shipping information. If you place a bid on an item, you enter a contractual agreement to buy it if you win the auction. All auctions have minimum starting bids, and some have a reserve price-a secret minimum amount the seller is willing to accept for the item. If the bidding doesn’t reach the reserve price, the seller doesn’t have to part with the item. In addition to auctions, you can find tons of fixed-price items on eBay that make shopping there just like shopping at any other online marketplace. You see what you like, you buy it, you pay for it and you wait for it to arrive at your door. You can pay for an item on eBay using a variety of methods, including money order, cashier’s check, cash, personal check and electronic payment services like PayPal and BidPay. It’s up to each seller to decide which payment methods he’ll accept. Just as you can buy almost anything on eBay, you can sell almost anything, too. Using a simple listing process, you can put all of the junk in your basement up for sale to the highest bidder. When you sell an item on eBay, you pay listing fees and turn over a percentage of the final sale price to eBay. Once you register (for free) with eBay, you can access all of your eBay buying and selling activities in a single location called "My eBay." eBay Infrastructure A series of service disruptions in 1999 caused real problems for eBay’s business. Over the course of three days, overloaded servers intermittently shut down, meaning users couldn’t check auctions, place bids or complete transactions during that period. Buyers, sellers and eBay were, very unhappy, and a complete restructuring of eBay’s technological architecture followed. In 1999, eBay was one massive database server and a few separate systems running the search function. In 2005, eBay is about 200 database servers and 20 search servers. The architecture is a type of grid computing that allows for both error correction and growth. With the exception of the search function, everything about eBay can actually run on approximately 50 servers-Web servers, application servers and data-storage systems. Each server has between 6 and 12 microprocessors. These 50 or so servers run separately, but they talk to each other, so everybody knows if there is a problem somewhere, eBay can simply add servers to the grid as the need arises. While the majority of the site can run on 50 servers, eBay has four times that. The 200 servers are housed in sets of 50 in four locations, all in the United States. When you’re using eBay, you may be talking to any one of those locations at any time--they all store the same data. If one of the systems crashes, there are three others to pick up the slack. When you’re on the eBay Web site and you click on a listing for a Persian rug, your com-puter talks to Web servers, which talk to application servers, which pull data from storage servers so you can find out what the latest bid price is and how much time is left in the auction, eBay has local partners in many countries who deliver eBay’s static data to cut down on download time, and there are monitoring systems in 45 cities around the world that constantly scan for problems in the network. Using eBay: Security In order to make buyers feel safer when making purchases on eBay, all tangible (有形的) items are automatically insured for 200. A recipe that was supposed to be delivered to you via e-mail is not considered a tangible item. But if you purchased a set of speakers that never arrived, and you go through the dispute process and eBay determines you were defrauded (欺骗), you can get your money back up to 200. Buyer Fraud Buyer fraud is typically less damaging than seller fraud. The most common type of fraud a buyer can commit is simply not paying for an item. Sellers can deal with non-paying bidders by filing an Unpaid Item dispute, eBay will then attempt to contact the buyer and get her to pay. If she does not respond to eBay’s attempts after eight days, the seller is reimbursed (赔偿)for eBay’s cut of the final sale price and can relist the item for free. If the buyer does respond, the dispute can end in one of three ways: The buyer decides to pay, and everybody’s happy. The buyer and the seller decide together to abandon the transaction, the seller gets reimbursed for the final-value fee and relists the item for free, and everybody’s happy. The seller decides not to deal with the buyer, the buyer gets an unpaid-item strike against her, and the seller gets reimbursed for the final-value fee and relists the item for free. In the end, the damage to the seller is relatively small. Another type of buyer fraud occurs when a buyer sends false payment. In most cases, this is in the form of a bounced check, and the seller finds out about it before shipping the item. Bounced checks are as common on eBay as they are in the rest of the world, and many sellers choose not to accept personal checks for this reason. Seller Fraud Seller fraud is what most people think about when they worry about using eBay. There are two main ways in which a buyer can be defrauded by a seller. The item the buyer purchased is dramatically different from how it was described in the listing; or the item simply never arrives. One thing to keep in mind when you think you’ve been defrauded is that miscommunication is common on eBay. For instance, if you didn’t read every word of the auction listing for your item, you may have missed the part that said the seller would be out of town for three weeks and wouldn’t be able to ship the item until she returned. This could be why you don’t have your item and the seller isn’t answering your e-mails. Also, e-mail is not the most straightforward form of communication. If your item hasn’t arrived after two weeks, and you’ve e-mailed the seller but haven’t heard back, it’s a good idea to check your junk mail folder. Your seller may have sent a response e-mail that just never made it to your inbox. If there’s nothing from the seller in your junk folder, you can request that eBay reveal your seller’s phone number so you can give him a call and see what’s going on. If you don’t get an answer to your phone call (or if your seller lives in another country and it would cost too much money to call), your next step is to start the dispute process. When a buyer believes he has been defrauded, he can file a complaint, and eBay will work to solve the problem. When you file a complaint in eBay’s "Item Not Received or Significantly Not as Described" system, eBay will act as middleman between you and your seller to try to settle the dispute. If that fails, you can file a claim to get reimbursed for your purchase.Which of the following may be banned by eBay overseers A．Virtual dates.B．Any over-priced products.C．Priceless antiques.D．Rare animals for pets.
三、Cloze (共1题，30.0分)18. (2022,30.0分)Say "genius" and his name immediately comes to mind. Einstein is the closest you get to____genius even small kids know him. There is no other____in the academic world that has even half Einstein's____.There is no genius in the world as____and as loved as Albert Einstein. His picture with his____hairstyle even became a pop culture icon.Nowhere in the world could we find another____that ranks the popularity of rock superstars. His soon "Eminem" would____any Beatles' album record, his "Theory of Relativity" even____Newton's gravitationa theory off the charts.Kids would love him more if they knew that he loved music. Had he lived later, he could easily____the only male member of the Bond electric quartet. Wouldn't it be great to see Einstein____alongside there gorgeous girls?
He had a(n)_of business failures but people continue to believe him because they know he will eventually succeed.A. depressionB. routineC. associationD. sequence
16.Life is like any other sport . You may ____hardships of one sort or another. A encounter B confront C encompass D counter
热门问题
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 ) To enh ---- something means to improve its value, quality, or attractiveness.
Elder and weaker Mr. Mag paid_visits to his old friends.A. scarceB. rare()C. insufficientD. inadequate
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
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).
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.
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
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
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 ) 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
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.
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.
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.
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.
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.