Dogs have a very good ______ of smell and ate often used to search for survivors in an earthquake.
A．sense B．view C．means D．idea
高三英语单项填空中等难度题
Dogs have a very good ______ of smell and ate often used to search for survivors in an earthquake.
A．sense B．view C．means D．idea
高三英语单项填空中等难度题查看答案及解析
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
A. sense B. view C. means D. idea
高三英语单项填空简单题查看答案及解析
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
A. sense B. view C. means D. idea
高三英语单项填空中等难度题查看答案及解析
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
A. sense B. view C. means D. idea
高三英语单项填空中等难度题查看答案及解析
Dogs have an amazing sense of smell thanks to 300million smell receptors in their noses, compared to only five million in the human nose. Medical dogs are trained by smelling samples of people already diagnosed with cancer and those of people without the disease so they can learn to tell the difference.
Dr Claire Guest began training her dog Daisy to smell out the killer disease in urine(小便) and breath samples（样品） when she was young. So far Daisy has found cancer in 551 patients, of which 93 per cent were accurate. And she discovered Dr Guest’s breast cancer before it was diagnosed– the first time she has discovered the disease actually growing in someone’s body, rather than by smelling a sample.
Dr Guest, 50, chief executive of charity Medical Detection Dogs, said: “She pushed against my body with her nose repeatedly – I pushed her away, but she pushed against me again, clearly upset. She pushed me so hard that it hurt me. “Her behaviour was totally out of character – she was normally such a happy dog ... I felt the tender area where she’d pushed me, and over the next few days I discovered the tiniest lump(肿块).
“If it wasn’t for Daisy it would have gone hidden for much longer and could have been more serious,” Dr Guest added. “My own pet labrador saved my life.”
Animal rescue charity Blue Cross presented Daisy with a medal for her achievements. She faced tough competition, including JJ, a bomb detection dog who has saved soldiers’ lives in Afghanistan.
Steve Goody, the charity’s deputy chief executive, said: “Cancer affects the lives of thousands of people and Daisy has made a huge contribution to the diagnosis and early treatment of cancers – she’s a very deserving medal recipient.”
Daisy is now helping to train a team of 12 dogs at Medical Detection Dogs and is a ‘senior consultant’ for the UK’s first ever trial using dogs to discover breast cancer.
1.Why was Daisy awarded a medal?
A. Because she can help discover cancer early.
B. Because she can smell the urine and breath samples.
C. Because she has saved many people’s lives by barking.
D. Because she has saved many soldiers’ lives in Afghanistan.
2.Which of the following words is closest in meaning to “recipient” in the last paragraph ________but one?
A. contributor B. ancestor C. helper D. receiver
3. How did Daisy discover Dr Guest’s cancer?
A. By smelling the urine sample.
B. By smelling the breath sample.
C. By smelling the hidden cancer.
D. By pushing Dr Guest hard.
4. From the text we can infer that __________.
A. Cancer is easy to cure.
B. Daisy and JJ competed hardly for the medal.
C. Daisy is training other dogs to discover breast cancer.
D. Dogs’ special sense of discovering cancer is highly valued.
高三英语阅读理解中等难度题查看答案及解析
Adult butterflies use their senses of sight, touch, hearing, smell, and taste to survive in the world, find food and mates, lay eggs in an appropriate place, migrate, and avoid hungry predators.
Sight
Butterflies have large, compound (multifaceted) eyes, which allow them to see in all directions without turning their heads. Like most insects, butterflies are very nearsighted, so they are more attracted to a large stand of flowers rather than individual plants. Butterflies do not "see" colors such as red, green, and yellow, but sense polarized（偏振的） light, which indicates the direction the sun is shining, as well as ultraviolet light, which is present on many flowers and guides butterflies to nectar （花蜜）sources.
Smell
Butterflies have a very well-developed sense of smell, but it's not in their nose (since they don't have one). Sense receptors located in their antennae, feet, and many other parts of the body help butterflies find food (usually flower nectar), and mates (the female smells the male's pheromones).
Taste
Butterfly's feet have sense organs that can taste the sugar in nectar, letting the butterfly know if something is good to eat or not. Some females also taste host plants in order to find appropriate places to lay their eggs. Adult butterflies and moths feed using a proboscis, a long, coiled tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube.
Hearing
Butterflies don't have ears. Instead they "hear" sounds through their wings by sensing changes in sound vibrations.
Butterflies may possess senses we don't even know about yet because their anatomy is very different than ours, and therefore difficult to understand when perceived through our own human senses.
1.From the passage we can know that butterflies can see_____
A. thing behind them B. thing in the distance
C. most bright colors D. flower nectar from a distance
2. Butterflies can easily find food resources by using their______.
A. sense organs of sight and smell B. sense organs of sight and taste
C. sense organs of smell and hearing D. sense organs of smell and taste
3. How do butterflies feed themselves?
A. by using their feet B. by using a tube.
C. by using sense receptors D. by using their wings.
4.What is the passage mainly about?
A. The food sources of butterflies. B. The habits of butterflies.
C. The unusual body of butterflies. D. the sense of butterflies.
高三英语阅读理解中等难度题查看答案及解析
Dogs 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（膀胱）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 man 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 patients, from people with other diseases and from healthy people．Each dog was tested 8 times．In each test there were 7 samples for the dogs to smell．The dog should signal the one from a bladder cancer patient by lying down next to it．Two cocker dogs were correct 56 percent of the time．But the scientists reported an average success rate of 41 percent．The British Medical Journal published the research．In all, 36 bladder cancer patients and 108 other people took part．During training, all the dogs reportedly even identified（认出）a cancer in a person who had tested healthy before the study．Doctors found a growth on the person’s right kidney（肾）．Carolyn Willis says dogs could help scientists identify the combined chemicals produced by bladder cancer．That information could then be used to develop machines to test for the chemicals．The team also plans to use dogs to help identify markers for other kinds of cancer．
49．What’s the general idea of the text?
A．Dogs have a good sense of smell B．Dogs can help cure cancer
C．Dogs can smell cancer D．Dogs help perform experiments
50．According to the text, people who suffer bladder cancer_____
A．often have urine with unusual smell B．probably smoke cigarettes in their life
C．can easily make dogs lie down
D．are likely to die within nine years
51．The underlined word “involved” in the text is closest in meaning to _____．
A．showed B．used C．proved D．preferred
52．What can we conclude from the last paragraph?
A．Dogs can only smell bladder cancer．
B．Dogs have a good knowledge of cancer．
C．Cancer doesn’t have any sign in the beginning．
D．Scientists might invent some equipment to test cancer．
高三英语阅读理解中等难度题查看答案及解析
Dogs are known for a strong sense of smell. Their noses can be trained to identify different smells. Dogs are often used in search and rescue operations and to sniff for things like drugs and explosives. Some dogs have even been trained to sniff for cancer in people.
Researchers have been trying to reproduce the extraordinary sense of smell that real dogs are born with. Now, officials at the Glasgow airport in Scotland are testing a new security device called an “electronic sniffer dog”. The electronic sniffer dog represents one of the latest developments in the area of smell technology.
A Scottish company, Cascade Technologies, joined with the French security company Morpho to develop it. The device uses lasers to identify explosive materials in gases in the air. The purpose is to identify explosives that may be hidden on a person’s body.
The machine looks similar to the metal detectors now used at airports. Passengers walk through the machine as the lasers test the surrounding air. People are not required to take off their coats, belts or shoes as part of the security process. And, unlike full-body scanners, the new device does not show images of the passengers.
Officials at Cascade Technologies say the machine can process one person per second and produce almost immediate results. They say future development could cut security processing times at airports by screening all passengers at walking speed.
Professor Yushan Yan, the head of Chemical and Environmental Engineering at the University of California, Riverside, points out that unlike real dogs, electronic devices do not get tired or need to be walked or require food and water. Professor Yan says real dogs also have other needs. “They also need very extensive training that could be expensive. And when they work they have to have a very skilled handler around them.”
But Professor Yan says there is an important area where man’s best friend still wins compared to technology. “In terms of sensitivity and selectivity, the current technology out there is still inferior. The real dog has amazing capability of identifying some really minor amount of explosives.”
1. The electronic sniffer dogs will be used to____
A. replace real dogs to be as pets for people
B. search for and rescue people who are in trouble
C. help people look after patients in the hospital
D. identify drugs and explosives in places like the airport
2.Which of the following is true of the electronic sniffer dog?
A. The device uses lasers to examine for explosive materials.
B. People have to take off their clothes when walking through the device.
C. The device will show images of the passengers.
D. The device can process all passengers at walking speed.
3. The advantages of the electronic sniffer dog over the real dog include the following EXCEPT______
A. its convenience B. its high efficiency
C. its sensitivity D. its low consumption
4.The underlined word “inferior” in the last paragraph most probably has the meaning of_____.
A. concentrating all one’s effort on a specific area
B. not as good as sb. / sth. else
C. that cannot be clearly understood
D. necessary for completeness
高三英语阅读理解中等难度题查看答案及解析
Today, dogs are found 1. (help) to all who fly in airplanes. They are trained to smell, track, and find bombs on planes and in luggage. Dogs are easy to train because they already have deep connection to humans. Many of these dogs are donated to the safety program, where they2. (give) a good home. The partnership between dogs and humans allows each to profit from the special talents of the other as they work together 3.（save）lives.
高三英语语法填空中等难度题查看答案及解析
The police always take advantage of dogs’ ____ sense of smell to search for something.
A. sensitive B. sharp C. practical D. tremendous
高三英语单项填空中等难度题查看答案及解析