单选题According to the passage, which of the following statements is NOT true?A Smell is the most emotional of the senses.B Smell stimulates our memory more than the other senses.C Smell is considered to be mysterious, as it is untouchable.D Smell is the most difficult sense to identify.

考题 The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, __1__ this is largely because, __2__ animals, we stand upright. This means that our noses are __3__ to perceiving those smells which float through the air, __4__ the majority of smells which stick to surfaces. In fact, __5__, we are extremely sensitive to smells, __6__ we do not generally realize it. Our noses are capable of __7__ human smells even when these are __8__ to far below one part in one million.Strangely, some people find that they can smell one type of flower but not another, __9__ others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate __10__ smell receptors in the nose. These receptors are the cells which sense smells and send __11__ to the brain. However, it has been found that even people insensitive to a certain smell __12__ can suddenly become sensitive to it when __13__ to it often enough.The explanation for insensitivity to smell seems to be that brain finds it __14__ to keep all smell receptors working all the time but can __15__ new receptors if necessary. This may __16__ explain why we are not usually sensitive to our own smells we simply do not need to be. We are not __17__ of the usual smell of our own house but we __18__ new smells when we visit someone else’s. The brain finds it best to keep smell receptors __19__ for unfamiliar and emergency signals __20__ the smell of smoke, which might indicate the danger of fire.1________________[A] although[B] as[C] but[D] while

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考题 Are holds free of smell?

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考题 Our__________ sensitivity decreases with age． By age 60, most people have lost 40 percent of their ability to smell and 50 percent of their taste buds．A.sensible B.senseless C.sensitive D.sensory

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考题 Our ______ sensitivity decreases with age. By age 60, most people have lost 40 percent of their ability to smell and 50 percent of their taste buds.A.sensible B.senseless C.sensitive D.sensory

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考题 The brain finds it best to keep smell receptors（）for unfamiliar and emergency signals such as the smell of smoke,which might indicate the danger of fire.A.available B.reliable C.identifiable D.suitable

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考题 Which of the following is NOT true according to the passage?__________A.Skyscrapers provide more usable space than other buildings B.The skyscrapers first appeared in the late 1960s C.Where there are skyscrapers, television reception is poor D.The two World Trade Center towers are skyscrapers

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考题 Primer on Smell In addition to bringing out1 the flavor of food, what does the sense of smell do for us ? Smell “gives us information about place, about where we are,” says Randall Reed, a Johns Hopkins University professor whose specialty is the sense of smell. ___1___ “Whether we realize it or not, we collect a lot of information about who is around us based on smell,” says Reed. Even at a distance, odors can warn us of2 trouble — spoiled food, leaking gas, or fire. “It’s a great alert,” offers Donald Leopold, a doctor at Johns Hopkins. For example, if something in the oven is burning, everyone in the house knows it. With just a simple scent, smell can also evoke very intense emotion. Let’s say, for example, that the smell is purple petunias. ___2___ Now let’s imagine that your mother died when you were three, and she used to have a flower garden. You wouldn’t need to identify the smell or to have conscious memories of your mother or her garden. You would feel sad as soon as you smelled that spicy odor. Compared with3 animals, how well do people detect smelts ? That depends on what you mean by “how well”. We are low on receptor cells ： current estimates say that humans have roughly five million smell-receptor cells, about as many as a mouse. ___3___ Reed says that, across species, there is a relatively good correlation between the number of receptor cells and how strong the sense of smell is. “You can hardly find the olfactory bulb in a human brain —— it’s a pea-sized object. In a mouse, it’s a little bigger. It’s bean-sized in a rat, about the size of your little finger in a rabbit, and the size of your thumb in a bloodhound.” Does that mean that our sense of smell is not very acute ? Not exactly. While we may not have the olfactory range of other creatures, the receptors we do have are as sensitive as those of any animal. ___4___ A trained “nose”, such as that of a professional in the perfume business, can name and distinguish about 10,000 odors. Reed says that a perfume expert can sniff a modem scent that has a hundred different odorants in it, go into the lab, and list the ingredients. “In a modest amount of time, he comes back with what to you or me would smell like a perfect imitation of that perfume. It’s amazing.” What happens to4 our sense of smell as we age ? Many people continue to have good olfactory function as they get older. ___5___ Leopold says that smell is generally highest in childhood, stays the same from the teens through the 50s, and drops starting at about 60 for women and 65 for men. “The average 80-year-old is only able to smell things half as well as the average 20-year-old,” says Leopold. 词汇： scent /sent/ n. 气味，香味 petunia /p 'tju:ni / n. 喇叭花 olfactory / l'f kt( )ri/ adj. 嗔觉的，味道的 sniff /snif/ v. 嗅，闻，用力吸注释： 1. bring out：使……显出，使……变得明显 2. warn of：发出关于……的警告。warn sb. of sth.：警告某人某事 3. compare with：与……相比 4. happen to：发生于，发生在练习： A These flowers have a rich spiciness that no other petunia has. B Odors, or smells, can warn us about trouble. C That’s not the rule, however. D And smell tells us about people. E We can also think, and we make conscious (and successful) efforts to tell the difference between one smell and another. F A rat has some 10 million, a rabbit 20 million, and a bloodhound 100 million.

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考题 A. smell B. evidence C.sound D.color

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考题共用题干第一篇The Smell of MoneyFor many years large supermarkets have been encouraging us to spend money by pumping the smell of freshly-baked bread into their stores. Now Dale Air, a leading firm of aroma（香气）consultants, has been approached by Barclay's Bank to develop suitable artificial smells for their banks.Researchers have suggested that surrounding customers with the"smell of money"will encourage them to feel relaxed and optimistic and give them added confidence in the bank's security and professionalism.But before a smell can be manufactured and introduced into banks' air conditioning systems,it must be identified and chemically analyzed,and this has proved to be difficult.The problem is that banknotes and coins tend to pick up the smell of their surroundings.So cash that has been sitting in a cash register at a fishmonger's（鱼贩）will smell of fish,and banknotes used to pay for meals in restaurants will tend to smellof food.It may be a challenge,but aroma experts have little doubt that the use of artificial smells can be an effective form of subconscious advertising. Lunn Poly,a British travel company,introduced the smell of coconuts（椰子）into its travel agencies and saw a big increase in spending by holiday makers.Many cafs now have elec-tric dispensers（自动售货机）that release the smell of freshly roasted coffee near their entrances, subtly encouraging customers to come in and have a drink or snack. Even prestigious car maker Rolls-Royce has been spraying the inside of its cars to enhance the smell of the leather seats."The sense of smell is probably the most basic and primitive of all human senses,"explains researcher Jim O'Riordan. "There is a direct pathway from the olfactory（嗅觉的）organs in the nose to the brain."It is certainly true that most people find certain smells incredibly strong,stirring memories and feelings in a way that few other stimulants（刺激物）can rival. It is a phenomenon marketing consultants have long recog- nized,but until recently have been unable to harness."We've made great progress but the technology of odour production is still in its infancy,"says O'Riordan."Who knows where it will take us."Researchers believe that introducing the"smell of money"into banks will encourage people_________.A:to spend moneyB:to feel confident about banksC:to earn more moneyD:to withdraw money from banks

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考题共用题干第一篇The Smell of MoneyFor many years large supermarkets have been encouraging us to spend money by pumping the smell of freshly-baked bread into their stores. Now Dale Air, a leading firm of aroma（香气）consultants, has been approached by Barclay's Bank to develop suitable artificial smells for their banks.Researchers have suggested that surrounding customers with the"smell of money"will encourage them to feel relaxed and optimistic and give them added confidence in the bank's security and professionalism.But before a smell can be manufactured and introduced into banks' air conditioning systems,it must be identified and chemically analyzed,and this has proved to be difficult.The problem is that banknotes and coins tend to pick up the smell of their surroundings.So cash that has been sitting in a cash register at a fishmonger's（鱼贩）will smell of fish,and banknotes used to pay for meals in restaurants will tend to smellof food.It may be a challenge,but aroma experts have little doubt that the use of artificial smells can be an effective form of subconscious advertising. Lunn Poly,a British travel company,introduced the smell of coconuts（椰子）into its travel agencies and saw a big increase in spending by holiday makers.Many cafs now have elec-tric dispensers（自动售货机）that release the smell of freshly roasted coffee near their entrances, subtly encouraging customers to come in and have a drink or snack. Even prestigious car maker Rolls-Royce has been spraying the inside of its cars to enhance the smell of the leather seats."The sense of smell is probably the most basic and primitive of all human senses,"explains researcher Jim O'Riordan. "There is a direct pathway from the olfactory（嗅觉的）organs in the nose to the brain."It is certainly true that most people find certain smells incredibly strong,stirring memories and feelings in a way that few other stimulants（刺激物）can rival. It is a phenomenon marketing consultants have long recog- nized,but until recently have been unable to harness."We've made great progress but the technology of odour production is still in its infancy,"says O'Riordan."Who knows where it will take us."Researchers think__________.A:artificial smells help to improve people's memoryB:the technology to produce artificial smells is in the early stageC:artificial smells are harmfulD:the production of artificial smells is profitable

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考题 The chemist analyzed that there was no trace of poison in the coffee.A: indication B: taste C:color D: smell

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考题共用题干第一篇The Smell of MoneyFor many years large supermarkets have been encouraging us to spend money by pumping the smell of freshly-baked bread into their stores. Now Dale Air, a leading firm of aroma（香气）consultants, has been approached by Barclay's Bank to develop suitable artificial smells for their banks.Researchers have suggested that surrounding customers with the"smell of money"will encourage them to feel relaxed and optimistic and give them added confidence in the bank's security and professionalism.But before a smell can be manufactured and introduced into banks' air conditioning systems,it must be identified and chemically analyzed,and this has proved to be difficult.The problem is that banknotes and coins tend to pick up the smell of their surroundings.So cash that has been sitting in a cash register at a fishmonger's（鱼贩）will smell of fish,and banknotes used to pay for meals in restaurants will tend to smellof food.It may be a challenge,but aroma experts have little doubt that the use of artificial smells can be an effective form of subconscious advertising. Lunn Poly,a British travel company,introduced the smell of coconuts（椰子）into its travel agencies and saw a big increase in spending by holiday makers.Many cafs now have elec-tric dispensers（自动售货机）that release the smell of freshly roasted coffee near their entrances, subtly encouraging customers to come in and have a drink or snack. Even prestigious car maker Rolls-Royce has been spraying the inside of its cars to enhance the smell of the leather seats."The sense of smell is probably the most basic and primitive of all human senses,"explains researcher Jim O'Riordan. "There is a direct pathway from the olfactory（嗅觉的）organs in the nose to the brain."It is certainly true that most people find certain smells incredibly strong,stirring memories and feelings in a way that few other stimulants（刺激物）can rival. It is a phenomenon marketing consultants have long recog- nized,but until recently have been unable to harness."We've made great progress but the technology of odour production is still in its infancy,"says O'Riordan."Who knows where it will take us."The difficulty of producing the"smell of money"lies in that___________. A:people's attitudes toward money are different B:it's hard to identify and analyze itC:no technology can do itD:experts have no motive

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考题共用题干 Study Says Dogs Can Smell CancerDogs are known for their sense of smell. They can find missing people and things like bombs and illegal drugs .Now a study suggests that the animal known as man's best friend can even find bladder（膀胧）cancer.Cancer cells are thought to produce chemicals with unusual odors（气味）.Researchers think dogs have the ability to smell these odors,even in very small amounts,in urine（尿）.The sense of smell in dogs is thousands of times better than in humans.The study follows reports of cases where,for example,a dog showed great interest in a growth on the leg of its owner. The mole（痣）was later found to be skin cancer.Carolyn Willis led a team of researchers at Amersham Hospital in England.They trained different kinds of dogs for the experiment. The study involved urine collected from bladder cancer patie nts,from people with other diseases and from healthy people.Each dog was tested eight times.In each test there were seven samples for the dogs to smell.The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.Two cocker spaniels（短腿长毛垂耳小猎犬）were correct fifty-six percent of the time. But the scientists reported an average success rate of forty-one percent.As a group,the study found that the dogs chose the correct sample twenty-two out of fifty-four times .That is almost three times more often than would be expected by chance alone.The British Medical Journal published the research .In all,thirty-six bladder cancer patients and one hundred and eight other people took part.During training,all the dogs reportedly even identified a cancer in a person who had testedhealthy before the study.Doctors found a growth on the person's right kidney（肾）.Bladder cancer is the ninth most common cancer worldwide.The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year. Doctors say cigarette smoking is the leading cause of bladder cancer. Which is NOT true of bladder cancer?A: It is the 9th most common cancer worldwide.B: It can be identified only by dogs.C: It kills more than 100,000 people each year.D: It is mainly caused by smoking.

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考题 The user turns on the computer and hears a popping sound and detects a burning smell. Thesystem will not power on. Which of the following is the MOST likely problem?（）A、Power supply has blown.B、CPU fan is faulty.C、Motherboard has overheated and shutdown.D、UPS has been tripped.

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考题问答题Having such acute senses of hearing, smell and sight, zebras often provide early warning to other grazers that　　　　　　　　A　　　　　　　　　　　　　　　　　 B　　　　　　　　　　　C　　　　　　　　　　　　 Dpredators are approaching. No error　　　　　　　　　　　　　　　E

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考题单选题（）the factory doesn't smell terrible.A AmazingB AmazedC AmazinglyD Amazedly

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考题单选题Research into customer satisfaction showed that ______.A the right smell made people think a product was betterB people preferred the smell of lemon to coconutC certain smells could make people dislike a shopD customers rated the goods on sale as more inviting

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考题单选题Some people argue that it would do more harm than good for plants and animals to develop through artificial selection. Which statement best supports this argument?A Roses no longer smell like roses.B Purebred dogs are disappearing.C Humans are harmful agents of plant and animal evolution.D Many domesticated plants and animals can no longer survive in the wild.

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考题单选题The author collects hair in bags to prevent the invasion of deer because he knows that _____.A deer like the smell of human hairB deer can be repelled by the smell of human hairC deer die when eating human hairD deer flee at the sight of human hair

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考题单选题Which of the following statements is NOT true according to the passage?A The women having children show a rise in cold infections than those without children.B People with low income will surely more colds than people with high income.C Juniors are easier to have colds than seniors.D It has not been proved scientifically that poor nutrition affects susceptibility to colds.

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考题单选题The user turns on the computer and hears a popping sound and detects a burning smell. Thesystem will not power on. Which of the following is the MOST likely problem?（）A Power supply has blown.B CPU fan is faulty.C Motherboard has overheated and shutdown.D UPS has been tripped.

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考题单选题What a smell, _____?A is itB isn’t itC does itD doesn’t

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考题单选题According to the passage, which of the following countries attracts more tourists than the others?A ItalyB spainC FranceD Greece

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考题单选题According to the passage, which of the following statements is true?A Transporting goods and people is the most important technology in the history of mankind.B Technology in transporting goods and people has changed human conditions more than anything else.C Technology in spreading information has changed human conditions more than transportation technology.D Technology in spreading information can’t change the economic development of society.

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考题单选题Our _____ sensitivity decreases with age. By age 60, most people have lost 40 percent of their ability to smell and 50 percent of their taste buds.A sensibleB senselessC sensitiveD sensory

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考题单选题—Oh，dear，I smell something _____.—God. my fish!A burntB burningC burnD is burning

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考题单选题Which of the following statements is true ?A Swimming across the Channel takes less than four hours.B The idea of a Channel tunnel or bridge is a very new one.C It is considered to be more difficult to swim across the channel than any other means.D A tunnel or bridge would only reach as far as the coast.

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