题目
题型：不详难度：来源：
Many animal and plant species have become extinct（灭绝的）and many more are in critical danger. Finding ways to protect the earth"s wildlife and conserve（保护）the natural world they inhabit（居住）is now more important than ever.
Dodo
The Dodo is a classic example of how human caused damage to the earth"s biology. The flightless Dodo was native to the Island of Mauritius in the Indian Ocean. It lived off fruit fallen from the island"s trees and lived unthreatened until humans arrived in 1505. The easily controlled bird became a source of food for sailors and was attacked by animals introduced to the island by humans such as pigs, monkeys and rats. The population of Dodos rapidly decreased and last one was killed in 1681.
Rhinos
The Rhino (犀牛) horn is a highly prized item for Asian medicine. This has led to the animal being hunted in its natural habitat. Once widespread in Africa and Eurasia, most rhinos now live in protected natural parks and reserves（保护区）. Their numbers have rapidly decreased in the last 50 years, and the animals remain under constant threat from poachers（偷猎者）.
The Giant Panda
The future of the World Wildlife Fund"s symbol is far from certain. As few as 1000 remain in the wild． The Chinese government has set up 33 panda reserves to protect these beautiful animals and made poaching them punishable with 20 years in prison. However, The panda"s distinct black and white patched coat fetches a high price on the black market and determined poachers still pose（造成）one of the most serious threats to the animals continued existence.
Whales
The International Whaling Commission is fighting to ensure the survival of the whale species. Despite the fact that one-third the world"s oceans have been declared whale sanctuaries（保护区）, 7 out of 13 whale species remain endangered． Hunted for their rich supply of oil, their numbers have decreased to just 300. Collisions（碰撞）with ships, poisonous pollution and being caught in fishing nets are other major causes of whale deaths.
Tigers
The last 100 years has seen a 95% reduction in the numbers of remaining tigers to between 5000 and 7000 and The Bali, Javan, and Caspian tigers are already extinct. The South China tiger is precariously close to disappearing, with only 20 to 30 still alive. Like the Rhino horn, tigers’ bones and organs are sought after for traditional Chinese medicines. These items are traded illegally along with tiger skins.
小题1:It implies that _______.
| A．The Dodo lacked the ability to protect itself from other animals |
| B．Sailors to the Island of Mauritius lived mainly on the Dodo |
| C．The Dodo used to be a strong animal that liked fighting. |
| D．The Dodo, pigs, monkeys and rats were the natives to the Island of Mauritius |
| A．The Dodo, Rhino and Giant Panda． |
| B．The Rhino, Whale and South China Tiger. |
| C．The Rhino, Panda, Whale and Tiger. |
| D．The Dodo and the Bali, Javan, and Caspian tigers. |
| A．The whale’s rich oil |
| B．The panda"s black and white patched coat |
| C．The Rhino horn and tigers’ bones and organs |
| D．The Dodo’s delicious meat |
| A．The number of South China tigers has reached crisis point. |
| B．Many animals are threatened with extinction as a result of human activity. |
| C．People hunt for the endangered animals for high profit. |
| D．The Whale is the representing mark for the World Wildlife Fund． |
答案
小题1:A
小题2:D
小题3:C
小题4:D
解析
小题1:推测题。从文章中的“flightless, lived off fruit fallen from the trees, easily controlled”等这些词中可推测出Dodo鸟缺少保护自己的能力。
小题2:细节归纳题。根据文章第二段的“The population of Dodos rapidly decreased and last one was killed in 1681”一句可判断Dodo是灭绝的动物之一，再根据最后一段中的“The Bali, Javan, and Caspian tigers are already extinct”一句可得出其他几种。
小题3:细节理解题。文章的第三段和最后一段提到“犀牛角和虎骨及器官”有很高的药用价值。
小题4:判断题。从第四段中的“The future of the World Wildlife Fund"s symbol is far from certain.”一句可得出“世界野生动物基金”的图案标记是“大熊猫”，而不是“鲸”。
核心考点
试题【Animal ConservationMany animal and plant species have become extinct（灭绝的）and man】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
European researchers are now conducting hibernation experiments. The study may help them understand whether humans could ever sleep through the years it would take for a space flight to distant planets. "If there was an effective technology, it could make deep-space travel a reality," said Mark Ayre of the European Space Agency last month.
What seems like a science fiction is not completely unlikely. Researchers have been able to use chemicals to put living cells into a sleep-like state where they don’t age. They have now moved on to the small, non-hibernating mammals (哺乳动物) like rats.
A major challenge is the fact that cells can be very simple systems, whereas body organs are far more complex (复杂的). "It’s like moving from a simple Apple computer to a supercomputer," said Marco Biggiogera, a hibernation researcher at Italy’s University of Pavia．Just like bears and frogs, the hibernation of human beings would cause a person’s metabolism (新陈代谢) to lower so they would need less energy.
Medical research, however, is just half of a space flight hibernation system. There is a challenge of designing a suitable protective shelter (栖身所). Such a shelter would provide the proper environment for hibernation, such as the proper temperature. It would also have to monitor (监控) life functions and serve the physiological needs of the hibernator.
According to Ayre, the six-person Human Outer Planets Exploration Mission (使命) to Jupiter’s moon (木星的卫星) Callisto could be an opportunity to use human hibernation. The mission aims to send six persons on a five-year flight to Callisto, where they will spend 30 days, in 2045.
小题1:According to the article, the hibernation research ______.
| A．is just an idea | B．is always a science fiction |
| C．has already finished successfully | D．has made some progress |
| A．less sleep | B．more food | C．less energy | D．more movement |
Exploration Mission to Jupiter’s moon Callisto.
| A．will be | B．has been planned for |
| C．is certain to be | D．may be |
| A．Hibernation Study For Space Travel | B．Welcome To Our Space Travel |
| C．To Hibernate, To Live Longer | D．Welcome To The Milky Way |
A NASA satellite called QuikSCAT has discovered highways of wind over the Earth"s oceans. Scientists believe these invisible roads may explain why many nonflowering plants, such as mosses (苔) and lichens (地衣), grow where they do.
The satellite is able to send microwaves (微波) from space to the surface of the ocean. The pattern of signals that come back shows which way the winds are blowing.
Using this data, the scientists studied a group of islands in the southern hemisphere (半球), near Antarctica．Winds tend to blow anticlockwise (逆时针) in this region, but there are lots of local differences.
When the researchers compared these local patterns to botanical (植物学) data, they found that the wind had an important effect on where species of mosses, lichens, and other nonflowering plants grow.
For example, Bouvet Island and Heard Island, share 30 per cent of their moss species, 29 per cent of liverworts (叶苔), and 32 per cent of lichens — even though they are 4,430 kilometers apart. In contrast, Gough Island and Bouvet Island, separated by just 1,860 kilometers of sea, share only 16 per cent of mosses and 17 per cent of liverworts. They have no lichens in common.
Ferns (蕨类植物) and flowering plants don"t travel as well in the wind, so they don"t show the same kinds of distribution (分布) patterns.
小题1:This story is about _____.
| A．the discovery of wind highways | B．how wind travels |
| C．how wind affects different plants | D．one function of the wind |
| A．signal | B．pattern | C．information | D．research |
| A．Bouvet Island, Heard Island and Gough Island are all in the southern hemisphere. |
| B．Winds in the researched area blow anti-clockwise. |
| C．The scientists shouldn"t base this research on how winds affect where ferns grow. |
| D．Without the discovery of QuikSCAT, the research wouldn"t have made sense. |
Since the earth"s creation millions of years ago, the ecosystem has worked as an interdependent system relatively undisturbed by outside forces. But recently, especially since the Industrial Revolution, human beings have begun to disturb the balance of nature. Natural resources have been severely depleted (消耗) (forests have been destroyed, fertile land worn away, water polluted, and minerals used up), and the life-support system of air, water, and land has been poisoned by a variety of waste products and chemicals.
The degree of these problems was noted in a report by the U.N. Developing Council on Environmental Quality. This report predicted that if present trends continue, the world will be more crowded and polluted and less stable ecologically and politically than the world we live in now.
The twin problems of resource shortages and pollution are caused by three social forces. First, the tremendous increase in population growth constantly increases the demand for food, energy, and other products. As the current population continues to increase, the stress on an already overburdened environment will be increased．A second source of the problem is the concentration of people in urban areas, where the ecosystem simply cannot absorb their waste products. Finally, environmental problems are worsened as more and more nations move toward modem development: an increased reliance on modern technology. As these nations become more technological, they will consume more energy, deplete more natural resources, and create more waste products than the biosphere can absorb.
小题1:The life-support system is composed of _____.
| A．air, water and land | B．the earth, the sun and energy |
| C．food, land and energy | D．food, energy and the sun |
| A．change energy from the sun into food for humans |
| B．depends on the sun for enough supplies of air, water and land |
| C．exists in the surface layer of the earth and the surrounding atmosphere |
| D．is a complex but independent system |
| A．natural forces | B．human activities | C．social movements | D．political changes |
| A．the effects of Industrial Revolution on human beings |
| B．the importance of life-support system to human beings |
| C．the significance of balance of nature |
| D．the destruction of life-support system and its causes |
The team has just finished a second year of work on the 1,020-mile highway. "The road is the greatest single footprint of activity we"ve seen in the Antarctic (南极洲)," said Alan Hemmings, an Australian environmentalist.
The highway will provide a new way for supplies to be trekked (拉, 搬) across the earth on tractor-pulled sleds (雪橇). This method will use a lot less fuel than an aircraft, the current (当前的) way that scientists and supplies reach the Amundsen-Scott Base, a U.S. research station in the South Pole. The highway will also allow for equipment that is too big for planes to carry to be brought to Antarctica．Even with these benefits, there is one disadvantage—a round trip on the road will be 30 days, compared to a few hours by plane.
Making this 20-foot-wide road isn"t easy, and it takes a lot of time. The crew (工作队) has been working on the road for two summers, when it"s warmer and easier to work with the ice. It probably won"t be completed until 2006.
Crevasses (裂缝), or cracks, in the land often make the construction difficult. Crevasses are kind of like pot holes that form when surface ice is stretched．This can be very dangerous, especially when the crevasses are hidden under a layer (层) of snow and can"t be seen.
"Last year it took us three months to go three miles across a crevasse field, full of dangerous, hidden crevasses," said the project"s manager, John Wright. Each year, more crevasses appear and they have to be filled with snow and ice so the road is safe for travel. The road will also be lined with green flags so travelers know where the safe surface is.
小题1: It will probably take ______ years to complete the ice highway.
| A．2 | B．4 | C．6 | D．8 |
| A．giving supplies to the research station in the South Pole |
| B．taking scientists to the South Pole |
| C．taking travelers to a tour of Antarctic |
| D．bringing huge equipment to Antarctic |
Pole?
| A．30. | B．34. | C．68. | D．88. |
| A．Other crevasses won’t appear if a crevasse has been filled. |
| B．Many new crevasses will form after a crevasse has been filled. |
| C．Travelers can drive their sleds on the ice highway freely. |
| D．There will be less danger if the crevasses are covered by snow. |
Today, more and more schools are reaching out to involve parents, community members and businesses（工商企业）to help shape a child"s future.
Parents need to be involved in their children"s education in many ways. Helping children with homework and studying, going on a field trip, teaching a craft（手工艺）or coaching a child"s sports team are all great ways to be involved with your child"s education. And don"t forget to communicate with teachers ---- they need and respect your input. Studies show that children learn more and schools function better when parents and schools work together. It"s important to stay in touch with your child"s education all through his or her school career.
Communities can help children create and achieve new goals. Help with homework, read to a child, coach a children"s team, or provide emotional（情感上的）support. Help solve problems and build self-esteem（自尊心）. Kids need role models and advisers can be role models by sharing their experiences and wisdom.
Businesses can also help shape our children"s future. Invite a class from your local school to visit your workplace. You may be providing a glimpse that opens a new world of possibilities. Show students what goes on during a typical day. Give a mini course for students: how to use a computer; how products are made; how machinery works. You may have a developing electrician, teacher, nurse, or even a newspaper reporter on your hands.
It really does take an entire village to raise a child．So share the responsibility（职责）-- and the joy -- of bringing a child to his or her full potential（潜能）.
小题1:The implied advice in the proverb "It takes an entire village to raise a child." is that ______.
| A．All the people in a village should give food to a child. |
| B．Schools, parents, and other organizations should share the responsibility of shaping a child"s future. |
| C．Children should be brought up in the village where they were born. |
| D．Schools should be set up in the village where a child was raised. |
| A．parents and members in organizations |
| B．teachers and students |
| C．newspaper reporters and developing electricians |
| D．education experts and government officials |
| A．parental involvement | B．community activities |
| C．business training | D．school teaching |
| A．Parents play an important part in children’s education. |
| B．Communities have not a bit effect on the way to new and high ideal. |
| C．Educating a child well demands of the work not only from school but from other organizations. |
| D．Businesses may arrange some training courses for students. |
最新试题
- 1下列句子中没有通假字的一句是 [ ]A．齐人固善盗乎 B．缚者曷为者也C．圣人非所与熙也
- 2过椭圆左焦点F且倾斜角为的直线交椭圆于A、B两点，若，则椭圆的离心率为（ ）A． B.
- 3定义：如果函数在区间上存在，满足，则称是函数在区间上的一个均值点。已知函数在区间上存在均值点，则实数的取值范围是
- 4（4分）工业上用饱和电解食盐水来制取氯气。现取500mL 含NaCl为11.7g的饱和食盐水进行电解。⑴在标准状况下制得
- 5进入血液的氧，通过血液循环输送到全身各处的组织细胞内的什么部位被利用?[ ]A．细胞核B．细胞质C．叶绿体D．线
- 6读“中国政策与棉花生产的关系图”,完成小题。小题1:影响我国1998~2000年棉花播种面积变化的主要因素是( )
- 7在平面直角坐标系中，点到原点的距离是_______.
- 8下列式子正确的个数是（ ）①4=(±4)2 ②(-3)2=-3 ③(3)2-(2)2=1 ④7=(7
- 9从含有100个个体的总体中抽取10个个体，请用系统抽样法给出抽样过程．
- 10下列各项没有错别字的一项是（ ） A．惫懒寒喧尘芥堆雕梁画栋B．纳罕纨绔捐门槛顾盼神飞C．杜撰草巢罥烟眉峥嵘崔嵬D．潦
热门考点
- 1若一个正方体的表面积为S1，其外接球的表面积为S2，则＝________.
- 2关于南极的说法正确的是（ ）A．南极地区有“冰雪高原”、“白色沙漠”和“风库”之称B．南极地区比北极地区温暖一些C．南
- 3先根据要求编写应用题，再解答所编写的应用题。编写要求：（1）编写一道关于行程问题的实际问题，使根据题意所列出的方程是；
- 4当为何值时，关于x的一元二次方程有两个相等的实数根？此时这两个实数根是多少？
- 5阅读常建的《题破山寺后禅院》回答问题。1、这首诗中以声衬静的一联是：__________________________
- 62011年利比亚反对派在以美国为首的北约支持下，通过半年多战争推翻了以卡扎菲为首的政府。战争期间，利比亚政局动荡，人民流
- 7误服氯化钡溶液后会引起中毒，采用下列解毒方法正确的是（ ）A．服用稀的硫酸铜溶液，使Ba2+变成BaSO4不溶物B．
- 8防锈和回收废旧金属都是保护金属资源的重要途径。为测定一种待回收的废铁中铁的锈蚀程度，某同学取该部分锈蚀的铁片样品(仅由铁
- 9 (8分)已知A、B分别是稀盐酸、氢氧化钠溶液中的一种。某化学兴趣小组同学
- 10将某一元酸HA溶液与NaOH溶液等体积混合：（1）若c （HA）=c （NaOH）=0．lmol/L，测得混合后溶液的p