年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語 來源:必修二學(xué)習(xí)高手英語人教 人教版 題型:050
|
查看答案和解析>>
科目:高中英語 來源:2013屆吉林省長(zhǎng)春市十一中高三上學(xué)期期初考試英語試卷(帶解析) 題型:閱讀理解
When many people see birds cleaning their feathers, they attribute it to vanity on the part of the bird. But, in reality, what they are doing is maintaining their wings, the instruments that they depend on for safe flight. If a bird’s wings are not in perfect condition, the bird either won’t be able to fly or won’t be able to control its flight. That is why after a long flight and even throughout the day, you will see them cleaning their feathers.
Most birds, if they get a chance, will take a bath at least once a day. They do this to get rid of the dust that has accumulated in their feathers throughout their flight s during the day. In dry or desert areas, birds will not always be able to find water in which to bath, but they still need to clean their feathers. What many birds will do is to take dust baths. They will roll around in dust until it covers their feathers. They will stand up, shaking the dust out, and then clean their feathers with their beaks (鳥嘴) as usual.
Baths are important for another reason. During the course of the day and night, many parasites (寄生蟲) are attracted to birds. Bugs, mites, fleas and so on will try to reach birds and suck from their blood. Daily baths help to keep the parasites to a minimum.
Some birds, especially those that spend a lot of time in or around water, have skin glands (皮膚腺) that produce oil. After bathing, these birds will squeeze the glands to spread the oil over their wings to keep them free of water.
If you are a bird lover and have bird houses in your yard, it can be good to go to the extra step, providing a bird bath. Once the birds in your neighborhood discover it, you will be surprised at how popular it becomes as they periodically stop by to take their daily bath.
【小題1】What’s the passage mainly about?
A.How birds clean themselves. | B.What birds enjoy doing. |
C.Why baths matter so much to birds. | D.What bird lovers should do. |
A.Most people think it good for birds to clean their feathers. |
B.Most people show much interest in how birds clean themselves. |
C.Most people believe that birds’ keeping themselves clean is necessary. |
D.Most people think birds’ cleaning their feathers of no practical significance. |
A.helps keep them healthy | B.keeps them free of any parasite |
C.makes them more attractive | D.helps them relax enough |
A.we should love birds as much as possible |
B.birds enjoy cleaning themselves by bathing |
C.we can be good bird lovers by bathing birds |
D.birds like to come close to the people in a yard |
查看答案和解析>>
科目:高中英語 來源:2013屆東北三校高三第二次聯(lián)合模擬考試英語試卷(帶解析) 題型:閱讀理解
Deception (騙術(shù))is something that people do all the time ,and it plays an important role in military (軍事的)strategy. Now some researchers are trying to figure out how to get robots to do it, by looking at the behavior of squirrels and birds.
At Georgia Tech, a team led by Ronald Arkin , a professor at the School of interactive Computing, studied the literature on squirrels hiding their acorns (橡果).Squirrels will hide their food m a certain place, but when they see other squirrels trying to steal from them, they attempt to fool the thieves by running to a fake location.
Ronald Arkin and his Ph. D. student Jaeeun Shim used that as a model for robot behavior. They programmed the robot into tricking a “predator (捕食者)” machine by doing what εi squirrel does: showing the enemy a false location for an important resource.
The team also looked at how other animals in this case,a species of bird called Arabian babbler~ drive off predators. A babbler will make an alarm call when they see a predator and other babblers will join the bird and make more calls. They then surround the predator, all the while flapping (拍打)wings and making noises. The babblers don’t ever actually fight the animal they want to drive off; they just make enough noises and flaps around enough so that it seems that attacking a babbler isn’t worth it
They found that the deception works when the group reaches a certain size—essentially, when enough birds arrive to convince the enemy that it’s best to back off . Davis modeled that behavior in software using a military scene and found that it worked even if the group didn’t have the firepower to confront the enemy directly.
The military is interested in this because a robot that can fool an opponent is a valuable tool. It could lead an enemy down a fake trail or make itself look more dangerous than it actually is.
【小題1】Why does the military want to take advantage of squirrels’trick?
A.It can reduce the use of firepower to confront the enemy. |
B.It can fool the enemy into believing it is more dangerous. |
C.It can lead the enemy in a wrong direction to avoid losing resources. |
D.It can scare the enemy away who wants to destroy the acorns. |
A.One bird makes an alarm call and other birds will join it |
B.They fight the enemy bravely face to face. |
C.They make noises and flaps around the predator. |
D.They force the predator aware that it isn't worthwhile to attack. |
A.Animals' behaviors are researched to be applied to the study of military robots. |
B.Robots, fooling tricks are applied to the study of animals’behaviors. |
C.Birds and squirrels are the animals that are good at deception. |
D.Researchers are interested m animals’military-related behaviors. |
查看答案和解析>>
科目:高中英語 來源:2012-2013學(xué)年吉林省吉林市普通中學(xué)高一上學(xué)期期末考試英語試卷(帶解析) 題型:閱讀理解
For 40 years, the people of London have been happy to discover in their parks a bird that seems to have made its way from the Himalayas to the capital of England. With its shocking green body, red mouth, long tail and noisy screech(尖叫), the rose-ringed parakeet (長(zhǎng)尾小鸚鵡) brought a vivid colour to parks in and around London.
However, the parakeets are no longer welcome. The government has suddenly woken up to the fact that there are many more parakeets in and around London making life harder for the local bird population. Government experts put the number of parakeets at around 30,000. They fear that if the number of parakeets keeps rising, these birds will push out local birds like wood-peckers, starlings and nuthatches from trees to build their own nests.
Not only that. According to an online report by The Independent, the parakeets will then also get control of most of the food available in the parks — seeds, berries, fruit and nuts. The local bird population will then have a hard time staying alive. An organization called the Royal Society for the Protection of Birds (RSPB) has asked the government to investigate (調(diào)查) what kind of a threat the parakeet brings to local birds. If the government decides that these birds are indeed a threat to local birds, steps will be taken to control the number of parakeets.
The most surprising thing about the case of the rose-ringed parakeet is that no one quite knows how the parakeets came from India and started breeding (繁殖) in areas around London.
【小題1】Parakeets are no longer welcome mainly because ______.
A.the local birds are being driven out |
B.the government doesn’t like the birds |
C.they are a threat to people’s health |
D.people have a great fear of this kind of birds |
A.the parakeets’ future threat is impossible |
B.the number of the parakeets is around 3,000 |
C.the parakeets should fly back to the Himalayas |
D.the local birds won’t have enough food |
A.where the parakeets live |
B.how the parakeets breed |
C.how they flew to London |
D.when they started living in London |
A.Help the parakeets | B.Pretty birds have trouble |
C.Birds invade London | D.Pretty birds |
查看答案和解析>>
科目:高中英語 來源:2010年衡水中學(xué)高二下學(xué)期二調(diào)考試(英語) 題型:閱讀理解
Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.
There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.
A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹頂鶴) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .
“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”
Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.
49.When did Christmas bird – watching begin?
A.Sometime during Christmas holiday. B.At the beginning of 20th century.
C.In the early 19 th century. D.Since there was Christmas Day
50.What do bird – watchers do when they are bird – watching?
A.They kill birds and beasts. B.They watch birds and beasts.
C.They watch and count birds. D.They look at the sky and write diaries.
51.The following are all reasons for red – crowned cranes flying in “human” shape except .
A.they can help each other and ensure their safety
B.they can communicate with each other in order to reduce tiredness.
C.they can make use of the air produced by each other’s wings.
D.they can look stronger in case they come across enemies
52.This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.
a. How the bird – watchers divided their watching task and what was done.
b. How Christmas bird – watching came into being.
c. Christmas bird – watching is of great importance environmentally and scientifically.
d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.
e. Red – crowned cranes fly in “human” formation for quite good reasons.
A.a(chǎn) – b – c – d – e B.b – c – e – d – a C.b- a – d – e – c D.b – d – e – a – c
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com