Thesoundofamosquitocanmeantrou

更新 2022-09-03
科目英语
题型阅读理解
难度较难
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The sound of a mosquito can mean trouble in many parts of the world. The bite of the mosquito can be deadly. The insects carry serious diseases like malaria. It is estimated that almost 630,000 people died from malaria and malaria-related causes in 2012, and most of these cases were in African countries.
In the United States, a group of California scientists is working to develop a more effective and less costly substance(物质)to protect people from mosquitoes. The researchers are investigating the sense of smell in mosquitoes. They found the insects use the same receptor(感受器)for identifying carbon dioxide in human breath as they do for the smell of our skin. Anandasankar Ray, who is leading the investigation, says scientists tested more than a million chemical compounds(化合物)until they found a substance called Ethyl pyruvate. He says Ethyl pyruvate makes the mosquitoes' receptor inactive. ”When we apply Ethyl pyruvate to a human arm and offer it to hungry mosquitoes in a cage, very few of the mosquitoes are attracted to the human arm because only a few of them are able to smell it out,” said Ray.
Genevieve Tauxe, a member of the research team, says it was not easy to find the neurons (神经元)of nose cells that recognise both the smell of human breath and skin. "With the device used to examine mosquitoes, we are able to insert a very small electrode(电极)into the part of the mosquitoes' nose, where its smelling neurons are and where the smell is happening," said Tauxe.
Anandasankar Ray says a product based on Ethyl pyruvate may cost less to produce than DEFT，the most effective chemical treatment now in use. He says DEFT is too costly for most people who live in areas affected by malaria.
“Perhaps by finding smells that can attack other target receptors, we will be able to improve upon DEFT and finally have the next generation of insect behavior control products," said Ray.
The best title for the passage is most probably _______________________________.

A．Scientists Find New Substance to Fight Mosquitoes

B．A New Generation of DEET Has Been Developed to Kill Mosquitoes

C．Malaria一a Serious Disease Causing 630,000 Deaths

D．Ethyl Pyruvate一an Insect Behavior Control Product

According to the passage, Ethyl Pyruvate can_______________________________.

A．kill the mosquitoes' smelling neurons

B．cause the mosquitoes to lose their sense of smell

C．result in the inactiveness of the mosquitoes' receptor

D．make the mosquitoes uninterested in human breath and skin smell

Through the passage, the writer aims to_______________________________.

A．inform readers of the new development in fighting mosquitoes

B．praise the achievements made in the battle against malaria

C．introduce a cheaper product in fighting mosquitoes

D．tell the differences between Ethyl Pyruvate and DEET

This passage most probably appears in_______________________________.

A．the column of newspaper ads

B．the health column of a magazine

C．a textbook of medical schools

D．a collection of doctors' essays

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III. 阅读理解（共15小题，每小题1分，满分15分）
A
"As sure as you're alive now, Peter Rabbit, some day I will catch you," shouted Reddy Fox, as he put his black nose in the hole between the roots of the Big Hickory-tree which grows close to the Smiling Pool. "It is lucky for you that you were not one jump farther away from this hole."
Peter, safe inside that hole, didn't have a word to say, or, if he did, he didn't have breath enough to say it. It was quite true that if he had been one jump farther from that hole, Reddy Fox would have caught him. As it was, the hairs on Peter's funny white tail actually had tickled Reddy's back as Peter ran wildly through the root-bound entrance to that hole. It had been the narrowest escape Peter had had for a long, long time. You see, Reddy Fox had surprised Peter eating sweet clover (苜蓿) on the bank of the Smiling Pond, and it had been a lucky thing for Peter that that hole, dug long ago by Johnny Chuck's grandfather, had been right where it was. Also, it was a lucky thing that old Mr. Chuck had been wise enough to make the entrance between the roots of that tree in such a way that it could not be dug any larger.
Reddy Fox was too shrewd (机灵的) to waste any time trying to dig it larger. He knew there wasn't room enough for him to get between those roots. So, after trying to make Peter as uncomfortable as possible by telling him what he, Reddy, would do to him when he did catch him, Reddy walked across the Green Meadows. Peter remained where he was for a long time. When he was quite sure that it was safe to do so, he crawled out and hurried to the Old Orchard. He felt that that would be the safest place for him, because there were ever so many hiding places in the old stone wall along the edge of it.
56. Where is Peter Rabbit hiding?
A. On the bank of a pond                       B. In a hole
C. In a tall tree                                             D. Behind a room
57. Which of the following statements is NOT TRUE according to the story?
A. Reddy Fox might find rabbit hairs on him.
B. Old Mr. Chuck took advantage of the roots to dig the hole.
C. The hole could be made larger.
D. Reddy almost caught Peter this time.
58. Why did Peter Rabbit wait so long before leaving?
A. Because Reddy was trying to get him.
B. Because it was cold outside.
C. Because his grandfather would help him dig a large hole.
D. Because the Old Orchard was not so safe as this hole.

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One bitterly cold day, a snowstorm blew into our area. Needing firewood, I quickly set out with my best friend, Bruce, to look for a tree to cut down. I was glad to have Bruce along. Cutting down a tree in a snowstorm can be dangerous. So it was important to have a friend who could warn me of dangers.
When I chose a big 23-meter-tall tree and prepared to cut it down, my best friend suddenly warned me,“Don’t cut down that tree! It’s too close to the power line!”I wasn’t sure about it. So I decided to disregard his warning. I wanted to finish the job quickly and go home. So I began cutting down the tree. When the tree fell, there was no longer any doubt whether my friend was right.
The tree caught the power line, bringing it to the ground. I considered cutting the tree off the line. After all, electricity can’t travel through wood, so I could safely remove the tree. As I reached out my finger to touch the tree, pain ran up my arm and through my head. I had been shocked!
After I returned home and told my mother what had happened, she quickly called the power company. Workers from the power company soon arrived on the scene. One of them asked if I had touched the tree, and when I told him I had, his face turned pale.
“You should have been killed,”he said.
So why am I still alive? It was my boots that saved my life.
Within two hours, the workers removed the tree. Soon the snowstorm calmed down—but not my mother.
Even though she was glad I wasn’t hurt, my mother was still serious with me. After all, I shouldn’t have brushed off my friend’s warning.
Through this experience, I learned it’s important to listen to people who offer a different perspective. Taking the time to listen might actually save a lot of time and trouble. It certainly would have kept me from getting the“shock of my life.”
57．The underlined word“disregard”in the second paragraph means“___________.”
A．pay no attention to B．take notice of C．consider D．follow
58．In spite of Bruce’s warning, the author still cut the tree because___________.
A．he was sure there would be nothing to happen
B．he knows electricity can’t travel through wood
C．he didn’t hear his friend’s warning at all because of the blowing wind
D．he wasn’t sure if Bruce was right and was anxious to go home
59．Which of the following statements is NOT true according to the passage?
A．But for his boots, the writer would have died.
B．The writer regretted having brushed off his friend’s warning.
C．The writer knew nothing about electricity.
D．When the tree was cut down, the writer realized his friend was right.
60．The author wrote the passage mainly to .
A．give an account of one of his terrible experiences
B．make us know it’s important to listen to people who offer a different perspective through his experience
C．tell us not to cut trees down any more
D．remind us to be careful while working

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Reading poems is not exactly an everyday activity for most people．In fact, many people never read a poem once they get out of high school．
It is worth reminding ourselves that this has not always been the case in America．In the nineteenth century, a usual American activity was to sit around the fireside in the evening and read poems aloud．It is true that there was no television at the time, nor movie theaters, nor World Wide Web, to provide diversion．However, poems were a source of pleasure, of self-education, of connection to other people or to the world beyond one’s own community．Reading them was a social act as well as an individual one, and perhaps even more social than individual．Writing poems to share with friends and relations was, like reading poems by the fireside, another way in which poetry has a place in everyday life．
How did things change? Why are most Americans no longer comfortable with poetry, and why do most people today think that a poem has nothing to tell them and that they can do well without poems?
There are, I believe, three factors：poets, teachers, and we ourselves．Of these, the least important is the third: the world surrounding the poem has betrayed us more than we have betrayed the poem．Early in the twentieth century, poetry in English headed into directions unfavorable to the reading of poetry．Readers decided that poems were not for the fireside or the easy chair at night, and that they belonged where other difficult-to-read things belonged．
Poets failed the reader, so did teachers．They want their students to know something about the skills of a poem, they want their students to see that poems mean something. Yet what usually occurs when teachers push these concerns on their high school students is that young people decide poems are unpleasant crossword puzzles．
53. Reading poems is thought to be a social act in the nineteenth century because___________．
A. it built a link among people                                 B. it helped unite a community
C. it was a source of self-education                           D. it was a source of pleasure
54. The underlined word “diversion” most probably means “___________”．
A. concentration            B. change                            C. amusements              D. stories
55. According to the passage, what is the main cause of the great gap between readers and poetry?
A. Students are becoming less interested in poetry．
B. Students are poorly educated in high school．
C. TV and the Internet are more attractive than poetry．
D. Poems have become difficult to understand．
56. In the last paragraph, the writer question___________．
A. the difficulty in studying poems              B. the way poems are taught in school
C. students’ wrong ideas about poetry             D. the techniques used in writing poem

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“Can I see my baby?” asked the happy new mother. The bundle (婴儿包) was placed in her arms and when she moved the fold of cloth to look upon his tiny face, she held her breath—the baby had been born without ears. Time, however, proved that the baby’s hearing was perfect except his appearance.
One day when he rushed home from school and threw himself into his mother’s arms, he cried out bitterly, “A boy, a big boy … called me—a f-…freak.” She sighed, knowing that his life was to be endless of heartbreaks.
He grew up, handsome for his misfortune. A favorite with his fellow students, he might have been class president but for that. He developed a gift for literature and music.
The boy’s father had a talk with the family doctor. Could nothing be done? “I believe we could transplant on a pair of outer ears, if they could be donated ,” the doctor decided. So the search began for a person who would make such a sacrifice for a young man. Two years went by. Then, “You’re going to the hospital, son. Mother and I have someone who will donate the ears you need. But it’s a secret.” said the father.
The operation was brilliantly successfull. His talents blossomed into genius. School and college became a series of successes. Later he married and entered the diplomatic(外交) service. “But I must know!” he urged his father. “Who gave so much for me? I could never do enough for him.”
“I do not believe you could,” said the father, “but the agreement was that you are not to know … not yet.” The years kept the secret, but the day did come … one of the darkest days that ever pass through a son. He stood with his father over his mother’s casket(灵柩). Slowly and tenderly, the father stretched forth a hand and raised the thick, reddish-brown hair to let out the secret.
49.The story is mainly about _______.
A．how a boy had new ears through an operation
B．what a devoted parent privately did for the child
C．how a disabled boy turned into a useful person
D．why a donator made a sacrifice to a bright boy
50.From the first paragraph we know that the mother _______.
A．was determined to donate her ears to perfect her son
B．kept her husband unknown about the baby’s situation
C．felt shocked and disappointed to see her new baby
D．complained of her bad luck to have a disabled child
51.What can be inferred from the passage?
A．The agreement was between the donator and the family.
B．The boy was so popular that he was made class president.
C．Finally the boy came to know who the donator was.
D．The mother donated her ears to her son after she died.
52.What moral lesson can we draw from this reading?
A．Real love lies in what is done unknown rather than what is done known.
B．It is up to parents to help their children heart and soul.
C．True beauty lies only in the heart not in appearance.
D．It is a virtue for young generations to learn to be grateful.

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When I asked my daughter which item she would keep; the phone, the car, the cooker, the computer, the TV, or her boyfriend, she said “the phone”. Personally, I couldn’t do without the phone entirely, which makes me unusual, Because the telephone is changing our lives more than any other piece of technology.
Point 1 The telephone creates the need to communicate, in the same way that more roads create more traffic. My daughter comes home from school at 4:00 pm and then spends an hour on the phone talking to the very people she has been with at school all day. If the phone did not exist, would she have anything to talk about?
Point 2 The mobile phone means that we are never alone. “The mobile saved my life,” says Crystal Johnstone. She had an accident in her Volvo on the A45 between Otley and Skipton. Trapped inside, she managed to make the call that brought the ambulance to her rescue.
Point 3 The mobile removes our secret. It allows marketing manager of Haba Deutsch, Carl Nicolaisen, to ring his sales staff all round the world at any time of day to ask where they are , where they are going, and how their last meeting went.
Point 4 The telephone separates us. Antonella Bramante in Rome says, “We worked in separate offices but I could see him through the window. It was easy to get his number. We were so near——but we didn’t meet for the first two weeks!”
Point 5 The telephone allows us to reach out beyond our own lives. Today we can talk to several complete strangers simultaneously (同时地) on chat lines (at least my daughter does. I wouldn’t know what to talk about). We can talk across the world. We can even talk to astronauts (if you know any) while they’re space-walking. And, with the phone line hooked up to the computer, we can access the Internet, the biggest library on Earth.
1．How do you understand ‘Point 1 —The telephone creates the need to communicate,…’？
A．People don’t communicate without telephone.
B．People communicate because of the creating of the telephone.
C．People communicate more since telephone has been created.
D．People communicate more because of more traffic.
2．Which points do you think support the idea that phones improve people’s life?
a．Point 1． b．Point2．   c．Point3．   d．Point 4．   e．Point 5．
A．c, d B．a, e C．a, c D．b, e
3．It is possible to talk to several complete strangers simultaneously through        .
A．the TV screen              B．a fax machine
C．the phone line hooked up to the computer     D．a microphone
4．The best heading for the passage is .
A．Phone Power                 B．Kinds of Phone
C． How to Use Phones          D．Advantage of Phones

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