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名词解释题
promoter
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B“In only six days I lost seven pounds of weight .”“Two full inches in the first three days!”These are the kinds of statements used in magazine, newspaper, radio and television ads, promising new shapes and new looks to those who buy the medicine or the device of such products say they can shape the legs, slim the face, smooth wrinkles, or in some other way to beauty or desirability.Often such products are nothing more than money-making things for their promoter. The results they produce are questionable, and some are dangerous to health.To understand how these products can be legally promoted to the public, it is necessary to understand something of the laws covering their regulation. If the product is a drug, FDA(Food Drug Administration)can require proof (证明)under the Food, Drug, and Cosmetic Act that it is safe and effective before it is put on the market. But if the product is a device, FDA has no authority to require premarketing proof of safety or effectiveness. If a product already on the market is a danger to health, FDA can request the producer or distributor to remove it from the market voluntarily, or it can take legal action ,including seizure (查封) of the product.One notable case a few years ago involved an electrical device called the Relaxacisor, had been sold for reducing the waistline. The Relaxacisor produced electrical shocks to the body through contact pads. FDA took legal action against the distributor to stop the sale of the device on the grounds that it was dangerous to health and life.Obviously, most of the devices on the market have never been the subject of court proceedings (法律诉讼), and new devices appear continually, Before buying, it is up to the consumer to judge the safety or effectiveness of such items.61．It can be inferred that ads mentioned in the text are ______.A. objective B. costly C. unreliable D. illegal
考题
有关RNA转录合成的叙述,其中错误的是()
A、转录过程RNA聚合酶需要引物B、转录时只有一股DNA作为合成RNA的模板C、RNA链的生长方向是5`3`D、所有真核生物RNA聚合酶都不能特异性地识别promoter
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Part BDirections:In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A-G to fit into each of numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1. (10 points)On the north bank of the Ohio River sits Evansville, Ind., home of David Williams, 52, and of a riverboat casino where gambling games are played. During several years of gambling in that casino, Williams, a state auditor earning $35,000 a year, lost approximately $175,000. He had never gambled before the casino sent him a coupon for $20 worth of gambling.He visited the casino, lost the $20 and left. On his second visit he lost $800. The casino issued to him, as a good customer, a Fun Card, which when used in the casino earns points for meals and drinks, and enables the casino to track the user’s gambling activities. For Williams, these activities become what he calls electronic morphine.(41)________. In 1997 he lost $21,000 to one slot machine in two days. In March 1997 he lost $72,186. He sometimes played two slot machines at a time, all night, until the boat locked at 5 a.m., then went back aboard when the casino opened at 9 a.m. Now he is suing the casino, charging that it should have refused his patronage because it knew he was addicted. It did know he had a problem.In March 1998, a friend of Williams’s got him involuntarily confined to a treatment center for addictions, and wrote to inform. the casino of Williams’s gambling problems. The casino included a photo of Williams among those of banned gamblers, and wrote to him a “cease admissions” letter. Noting the medical/psychological nature of problem gambling behaviors, the letter said that before being readmitted to the casino he would have to present medical/psychological information demonstrating that patronizing the casino would pose no threat to his safety or well-being.(42) ________.The Wall Street Journal reports that the casino has 20 signs warning: “Enjoy the fun... and always bet with your head, not over it.” Every entrance ticket lists a toll-free number for counseling from the Indiana Department of Mental Health. Nevertheless, Williams’s suit charges that the casino, knowing he was “helplessly addicted to gambling,” intentionally worked to “lure” him to “engage in conduct against his will.” Well.(43) ________.The fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) says “pathological gambling” involves persistent, recurring and uncontrollable pursuit less of money than of thrill of taking risks in quest of a windfall.(44) ________. Pushed by science, or what claims to be science, society is reclassifying what once were considered character flaws or moral failings as personality disorders akin to physical disabilities.(45) ________.Forty-four states have lotteries, 29 have casinos, and most of these states are to varying degrees dependent on -- you might say addicted to -- revenues from wagering. And since the first Internet gambling site was created in 1995, competition for gamblers’ dollars has become intense. The Oct. 28 issue of Newsweek reported that 2 million gamblers patronize 1,800 virtual casinos every week. With $3.5 billion being lost on Internet wagers this year, gambling has passed pornography as the Web’s most profitable business.41.___________________[A] Although no such evidence was presented, the casino’s marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected.[B] It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative?[C] By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit.[D] Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government.[E] David Williams’s suit should trouble this gambling nation. But don’t bet on it.[F] It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will.[G] The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so?
考题
_________[A] Although no such evidence was presented, the casino’s marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected.[B] It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative?[C] By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit.[D] Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government.[E] David Williams’s suit should trouble this gambling nation. But don’t bet on it.[F] It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will.[G] The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so?
考题
Part B Directions:In the following text, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list A- G to fit into each of numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1. (10 points) On the north bank of the Ohio River sits Evansville, Ind., home of David Williams, 52, and of a riverboat casino where gambling games are played. During several years of gambling in that casino, Williams, a state auditor earning $35,000 a year, lost approximately $175,000. He had never gambled before the casino sent him a coupon for $20 worth of gambling. He visited the casino, lost the $20 and left. On his second visit he lost $800. The casino issued to him, as a good customer, a Fun Card, which when used in the casino earns points for meals and drinks, and enables the casino to track the user's gambling activities. For Williams, these activities become what he calls electronic morphine. (41)______________. In 1997 he lost $21,000 to one slot machine in two days. In March 1997 he lost $72,186. He sometimes played two slot machines at a time, all night, until the boat locked at 5 a.m., then went back aboard when the casino opened at 9 a.m. Now he is suing the casino, charging that it should have refused his patronage because it knew he was addicted. It did know he had a problem. In March 1998, a friend of Williams's got him involuntarily confined to a treatment center for addictions, and wrote to inform. the casino of Williams's gamblers. The casino included a photo of Williams among those of banned gamblers, and wrote to him a” cease admissions” letter noting the medical/psychological nature of problem gambling behaviors, the letter said that before being readmitted to the patronizing the casino would pose no threat to his safety have to his safety or well-being. (42) ______________. The Wall Street Journal reports that the casino has 20 signs warning: “Enjoy the fun ... and always bet with your head, not over it”. Every entrance ticket lists a toll-free number for counseling from the Indiana Department of Mental Health. Nevertheless, Williams's suit charges that the casino, knowing he was “helplessly addicted to gambling”, intentionally worked to ”love” him to “engage in conduct against his will” well. (43) ______________. The fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) says “pathological gambling” involves persistent, recurring and uncontrollable pursuit less of money than of taking risks in quest of a windfall, (44) ______________.Pushed by science, or what claims to be science, society is reclassifying what once were considered character flaws or moral failings as personality disorders akin to physical disabilities. (45) ______________. Forty-four states have lotteries, 29 have casinos, and most of these states are to varying degrees dependent on --you might say --addicted to--revenues from wagering. And since the first Internet gambling site was created in 1995, competition for gamblers' dollars has become intense. The Oct. 28 issue of NEWSWEEK reported that 2 million gamblers patronize 1,800 virtual casinos every week. With $3.5 billion being lost on Internet wagers this year, gambling has passed pornography as the Web's most profitable business.第41题：______________.(A). Although no such evidence was presented, the casino's marketing department continued to pepper him with mailings. And he entered the casino and used his Fun Card without being detected. (B). It is unclear what luring was required, given his compulsive behavior. And in what sense was his will operative? (C). By the time he had lost $5,000 he said to himself that if he could get back to even, he would quit. One night he won $5,500, but he did not quit. (D). Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease. Now it is a social policy: the most important and aggressive promoter of gambling in America is government. (E). David Williams’s suit should trouble this gambling nation. But don’t bet on it. (F). It is worrisome that society is medicalizing more and more behavioral problems, often defining as addictions what earlier, sterner generations explained as weakness of will. (G). The anonymous, lonely, undistracted nature of online gambling is especially conductive to compulsive behavior. But even if the government knew how to move against Internet gambling, what would be its grounds for doing so?
考题
What role does the teacher play at the feedback stage?
A．Assessor.
B．Promoter.
C．Controllor.
D．Resource-provider.
考题
在真核生物的转录起始点上游约25bp左右的区域有一段保守序列，可能与RNA酶的正确定位结合及转录起始有关，这段序列是（）A、CAATboxB、EnhancerC、TATAboxD、Promoter
考题
关于RNA转录合成的叙述，其中错误的有（）A、转录过程RNA聚合酶需要引物；B、转录时只有一股DNA链作为合成RNA的模板；C、RNA链的伸长方向是5’—3’；D、所以RNA聚合酶都不能特异性地识别promoter。
考题
问答题Practice 2 Transgenic plants and animals result from genetic engineering experiments in which genetic material is moved from one organism to another, so that the latter will exhibit a characteristic. Business corporations, scientists, and farmers hope that transgenic techniques will allow more cost-effective and precise plants and animals with desirable characteristics that are not available using up to date breeding technology. Transgenic techniques allow genetic material to be transferred between completely unrelated organisms. In order for a transgenic technique to work, the genetic engineer must first construct a transgene, which is the gene to be introduced plus a control sequence. When making a transgene, scientists usually substitute the original promoter sequence with one that will be active in the correct tissues of the recipient plant or animal. The creation of transgenic animals is one of the most dramatic advances derived from recombinant DNA technology. A transgenic animal results from insertion of a foreign gene into an embryo. The foreign gene becomes a permanent part of the host animals’ genetic material. As the embryo develops, the foreign gene may be present in many cells of the body, including the germ cells of the testis or the ovary. If the transgenic animal is fertile, the inserted foreign gene (transgene) will be inherited by future progeny. Thus, a transgenic animal, once created, can persist into future generations. Transgenic animals are different from animals in which foreign cells or foreign organs have been engrafted. The progeny of engrafted animals do not inherit the experimental change. The progeny of transgenic animals do. The techniques for creating a transgenic animal include the following: 1) picking a foreign gene, 2) placing the foreign gene in a suitable form called a “construct” which guides the insertion of the foreign gene into the animal genome and encourages its expression, and 3) injecting the construct into a single fertilized egg or at the very early embryo stage of the host animal. Much genetic engineering goes into the choice of a foreign gene and building a construct. The construct must have promoters to turn on foreign gene expression at its new site within the host animal genome. By choosing a particular promoter and splicing it in front of the foreign gene, we can encourage expression of our transgene within a specific tissue. One of the most important applications of transgenic animals is the development of new animal models of human disease. Transgenic animals can serve as models for many malignant tumors. Mice have been the most frequent hosts for transgenic modification, other domestic animals have also been used. One idea has been to create transgenic cows which secrete important pharmaceutical substances in their milk. Other attempts are being made to express human interferon in the milk of sheep. A transgenic crop plant contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination. The inserted gene sequence (known as the transgene) may come from another unrelated plant, or from a completely different species: transgenic BT corn, for example, which produces its own insecticide, containing a gene from a bacterium. Plants containing transgenes are often called genetically modified or GM crops although in reality all crops have been genetically modified from their original wild state by domestication, selection and controlled breeding over long periods of time.
考题
单选题启动子（promoter）是指（ ）。A
mRNA开始翻译的序列B
RNA开始转录的序列C
DNA开始复制的序列D
DNA模板结合RNA－pol的特殊序列E
DNA领头链上的特殊序列
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