题目
题型：不详难度：来源：
What are the advantages of the Greenbelt?
The Greenbelt has many advantages for people in the Bay Area, which include:
l walking and biking areas close to the cities and towns;
l places for wild plants and animals;
l cleaner air and water;
l income from farms.
Is the Greenbelt in danger?
Five hundred seventy thousand acres of the Greenbelt are in danger. There are builders who want to build suburbs on them. If those acres become suburbs, many things will change:
l the urban and suburban area will almost double;
l many farms will disappear;
l traffic will become worse;
l the air will become dirtier.
What is Greenbelt Alliance (联盟)?
Greenbelt Alliance, an organization that saves land in the San Francisco Bay Area, works alone and with other groups to save the Greenbelt in four ways:
1. Try to persuade people to build new buildings on land that is already urban, not on open land.
2. Make sure that the city and town governments are all making plans to save the Greenbelt.
3. Help Bay Area towns and cities to buy pieces of open land to make into natural areas.
4. Teach people in the Bay Area why the Greenbelt is important and what they can do to help save it.
小题1:What can we learn about the Greenbelt from the first paragraph?
| A．The Greenbelt is the largest open land in the United States. |
| B．The Greenbelt covers much more than half of the Bay Area. |
| C．There are few farms on the open land of the Greenbelt. |
| D．There are more than 8,500 natural areas on the Greenbelt. |
| A．convenience for exercise | B．income from sightseeing |
| C．cleaner city streets | D．more plants and animals |
| A．traffic is getting worse |
| B．some plans to build suburbs on it |
| C．the suburban area has doubled |
| D．pollution is becoming serious |
| A．It builds new buildings on open land. |
| B．It buys large open land for the Bay Area. |
| C．It educates people how to save the Greenbelt. |
| D．It helps the city governments make plans. |
答案
小题1:B
小题2:A
小题3:B
小题4:C
解析
试题分析：本文叙述了在美国的旧金山周围有一个非常大的绿化带，文中介绍了它的优点人们可以锻炼身体，呼吸新鲜空气等，但是五千零七万亩的绿地正处于危险中，一些人计划在这里盖楼，当然会带来一些问题，这样绿地联盟就开始做工作来阻止这样的事情发生。
小题1:细节理解题。根据includes about 3.75 million of the Bay Area’s 4.5 million acres故选 B。
小题2:细节理解题。根据walking and biking areas close to the cities and towns;可以去锻炼，故选A。
小题3:细节理解题。根据There are builders who want to build suburbs on them.一些人想把它建成郊区，故选B。
小题4:细节理解题。根据works alone and with other groups to save the Greenbelt 和Teach people in the Bay Area why the Greenbelt is important and what they can do to help save it.教育人们如何保护绿化带，故选C。
点评：细节理解题可以分为集中型细节理解题和分散型细节理解题。集中型：就文章的单个细节提问，答案在原文中出现的位置一般也位于单句话或几句话中。因为具体细节不同，出题形式千变万化，因题而异。分散型：题目涉及到文章某一段或几段，甚至贯穿全文的各个位置，需要考生寻找文章中的多个细节。请注意，分散型细节理解题并不意味着题目的正确答案出现在文章的不同位置，正确答案往往也是关于文章的某一个句子或细节。只是说文章的干扰选项是关于不同的细节，需要我们在定位的时候阅读某一个区域。
核心考点
试题【The Greenbelt, a wide belt of open land around the cities and towns of the San F】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
By studying these flies, the researchers discovered that mutations(变异) in the insomniac gene were associated with a great reduction in sleep. While a typical fruit fly slept for an average of 927 minutes a day, the mutant flies slept for just 317. They also slept for shorter periods of time, and slept and woke more frequently.
“The results showed a great loss of both the time that the flies’ sleep lasted and their ability to remain asleep after they slept,” says researcher Nicholas Stavropoulos.
The researchers also examined the link between sleep and lifespan, finding that flies with mutations to the insomniac gene lived only about two-thirds as long as unchanged flies. But when the scientists removed insomniac only in neurons（神经细胞）---allowing it to remain in the rest of the flies’ bodies---this difference disappeared; the resulting animals slept poorly but lived just as long.
“This suggests that reduced sleep can be ‘uncoupled’(分开) from reduced lifespan, supporting the idea that some interruptions of sleep do not affect overall health, at least as far as lifespan is concerned,” Stavropoulos says.
Although flies and humans would appear to have little in common when it comes to lifestyle, scientists say that the mechanisms of sleep and wakefulness are likely to be quite similar.
“Sleep is a fundamental behavior in all animals, and it is poorly understood from a scientific standpoint, says Stavropoulos. This work could prove useful in understanding and treating sleep disorders”
小题1:The text is mainly about____.
| A．the progress in cloning fruit flies |
| B．the methods of cloning fruit flies |
| C．the link between gene and lifespan |
| D．the influence of a gene on the ability to sleep |
| A．slept about 5 hours a day |
| B．had problems waking up |
| C．didn’t seem sleepy at all |
| D．could not fall asleep |
| A．sleep and health go hand in hand |
| B．sleep can be controlled by humans |
| C．research into sleep is very fruitful |
| D．the findings are useful in medical treatment |
What is headache? What causes it? What can be done about a headache? What research is being done on headaches?
The dictionary defines(下定义) headache simply as “a pain in the head.” What most people mean by headache is a pain which lasts several minutes or hours.It covers the whole head, or one side of it, or perhaps the front or the back of the head.To add to the confusion(困惑) about a definition, some people call tight feeling in the head a headache.
A headache is important because it can be the first warning of a serious condition which probably could be controlled if discovered early.If a person removes the warning, day after day, with a pain-killer, he may pass the point of easy control.
The professional name for covering up a symptom(症状) is “masking” (遮蔽).A headache specialist once said, “Masking symptoms is not the best way of treatment.” He compared taking a pain-killer for a headache before a cause is known with taking iron pills for anemia(贫血症) while bleeding continues undiscovered.He added, “Sometimes it is wiser to stand still than to advance in darkness.”
A headache is important also because it affects normal, happy living.The employee with a headache does less work.In a flash of temper he may upset his fellow workers or customers, causing a direct or indirect loss to his organization.The mother with a headache suffers and disturbs the family.She upsets her husband and children.
小题1:Which is true according to the passage?
| A．Headache has no effect on others. |
| B．Headache may cover the whole body. |
| C．Headache may last several minutes or hours. |
| D．Headache is just the tight feeling in the head. |
| A．you should not advance in darkness whatever happens |
| B．you’d better do nothing before you know how to deal with it |
| C．you’d better still stand there without moving when it is dark at night |
| D．you should take some pain-killers for your headache if you want to cover it up |
| A．Treatments of headaches | B．The definition of headaches |
| C．Symptom of headaches | D．Bad effects of a headache |
| A．the reason of headache |
| B．headache and its effect |
| C．everyone suffers from a headache |
| D．a headache is a symptom of something serious |
Launched on the sidelines of global climate negotiations in Durban, the report by the United Nations Food and Agriculture Organization shows how higher temperatures, the rise in sea levels, deforestation and excessive land use have damaged the habitats of certain species, especially in Africa.
“Many ecosystems have already been stressed by increasing population, historical and recent deforestation, unsustainable management practices and even invasive (入侵的) species,” Eduardo Rojas-Briales, assistant director general at the FAO"s forestry department, said at the launch of the report.
The most affected areas include mountains, isolated islands and coastal areas, which limit the possibilities for animals to migrate elsewhere and create new habitats.
“The remaining populations become surrounded in very small ecosystems, they have inbreeding (近亲交配) problems ... and at the end these species may disappear,” he added.
Other examples of affected animals included elephants in Mali, lions in the Serengeti and crocodiles in Malawi.
The report said an estimated 20-30 percent of plant and animal species will be at higher risk of extinction due to global warming and a significant proportion of native species may become extinct by 2050 as a consequence.
Other consequences could include the spread of invasive species and infectious diseases, it said.
The report urges more focus on restoration of damaged ecosystems, especially those key to dealing with climate change such as mangroves(红树林), inland waters, forests, savannahs(非洲大草原) and grasslands.
The FAO also called for the creation of migration corridors for animals in areas where their movement was limited.
The organization said while more resources were flowing to biodiversity conservation, more action at the government and policy level was needed.
It also urged local communities to develop projects that mitigate the impact of climate change on wildlife, naming eco-tourism activities as an example.
小题1:What does the author tell us in Paragraph 2?
| A．The theme of global climate negotiations in Durban. |
| B．The subject of research done by Eduardo Rojas. |
| C．Causes of damage done to ecosystems. |
| D．Harmful effects of damage done to ecosystems. |
| A．They are frequently attacked by invasive species and infectious diseases. |
| B．They have difficulty finding enough food for survival. |
| C．They can hardly find mates to produce their young. |
| D．They have little chance of moving to other places. |
| A．restoring damaged ecosystems |
| B．limiting world population growth |
| C．creating movement channels for animals |
| D．urging governments and local communities to take action |
| A．increase or further improve something. |
| B．Make full use of something. |
| C．Make something become less serious. |
| D．Move from one place to another. |
| A．Animals at risk due to climate change. |
| B．Global warming and its consequences. |
| C．Climate change and ecotourism. |
| D．Solutions to animal distinction. |
Any vehicle is a hybrid when it combines two or more sources of power. Hybrid cars run off a rechargeable battery and gasoline. Hybrid cars have special engines, which are smaller than traditional gasoline engines. They run at 99 percent of their power when the car is cruising (匀速行驶). A specially designed battery motor provides extra power for running up hills or when extra acceleration is needed.
Step into a Prius, and turn on the engine. The first thing you notice is how much quieter it is than a traditional car. At this point, the car"s gasoline engine is dormant (休眠). The electric motor will provide power until the car reaches about 24 km/h. If you stay at a low speed, you are effectively driving an electric car, with no gasoline being used, and no waste gas gives off.
The onboard(车载的) computer makes the decision about when to use a gas engine, when to go electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas pedal (油门), you are actually telling the computer how fast you want to go.
The electronic motor recharges automatically using a set of batteries. When driving at high speed, the gasoline engine not only powers the car, but also charges the batteries. Any time you use the brake, the electric motor in the wheels will work like a generator and produce electricity to recharge the batteries. As a consequence, the car"s batteries will last for around 200,000 miles.
小题1:The author writes this passage mainly to________.
| A．teach people how to drive a hybrid car |
| B．introduce a new kind of “green” car |
| C．show how to save their gasoline when driving a car |
| D．announce plans to develop hybrid vehicles for China |
| A．there will be more and more green land in China |
| B．China is still young and lacking experience |
| C．China"s new cars are combinations of different green models |
| D．China has started producing environmentally friendly cars |
| A．The hybrid cars reduce air pollution and oilshortages. |
| B．The car"s gasoline engine doesn"t work until it reaches about 24 km/h. |
| C．This kind of car is completely controlled by an onboard computer. |
| D．A specially designed battery motor provides extra power when needed. |
| A．They are powered by both a rechargeable battery and gasoline. |
| B．They are much quieter than traditional cars. |
| C．They only use 99 percent of their power to run up hills. |
| D．They have smaller engines than traditional gasoline ones. |
Pan Shiyi, a celebrity real estate developer said he is planning to propose (提案) a Clean Air Act to the local government. As a representative to the Beijing Municipal People"s Congress, he started an online survey at 9:20 a.m. Within three hours, more than 25,000 web users, or 99 percent of total respondents（应答者）, welcomed his proposal on Sina Weibo, China"s Twitter.
They have good reasons to stand alongside Pan. The latest round of haze（雾霾）reduced visibility to under 500 meters in many parts of the city. The smog has also led to a great increase in respiratory illnesses, particularly among children and the elderly. Anxious parents and doctors almost all blame the smoggy air for the illnesses. Though most schoolchildren are home for the winter holidays, the bad air can easily move indoors. Besides, ordinary medical masks fail to provide adequate protection, so some people have turned to gas masks and respirators（呼吸器）.
The causes of the scary smog are rather mysterious, though experts blame excessive emissions and the mountains around Beijing that trap pollution in winter, unless there is adequate wind to clear it away. Some critics have pointed fingers at China’s top two oil firms, China National Petroleum Corp and China Petrochemical Corporation, saying the companies’ outdated production technologies produce large quantities of substandard, high-polluting gas fuel.
Meanwhile, concerned Beijingers have moved their brainstorming sessions to cyberspace. If Pan’s proposal for a Clean Air Act is adopted, netizens say the new law should include items providing for “car-free days” in times of smog, higher standards for vehicle fuel, stricter restrictions on industrial and exhaust gas emissions, and more effective protection for the public.
Beijing is not the only city that has ever lost the blue sky. Five days of thick fog caused thousands of deaths in Britain in December 1952, urging the government to pass the first Clean Air Act in 1956, which introduced smokeless zones and cleaner fuels to reduce pollution. That may provide some experience for Beijing to refer to.
小题1:What can we learn from the passage?
| A．People are clear about the causes of the smoggy weather. |
| B．Children staying indoors will not get respiratory illnesses. |
| C．Smog is worse for people with lower resistance to diseases. |
| D．Masks can give people protection against the smoggy weather. |
| A．suggest Beijing should learn from other countries |
| B．let people know many places have this problem |
| C．tell people the situation in Britain is worse |
| D．call on the government to pass Britain’s Clean Air Act |
| A．The Use of Gas masks and Respirators |
| B．Beijingers Call for Clean Air Act |
| C．Effective Protection for Blue Sky |
| D．The Mysterious Causes of the Scary Smog |
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