阅读理解 Biodiversity.or biological diversity, is a wide-ranging concept that covers all the different kinds of plant and animal species present on earth．Environmentalists believe that many millions of 题目和参考答案——青夏教育精英家教网—

阅读理解

　　Biodiversity(生物多样性)，or biological diversity, is a wide-ranging concept that covers all the different kinds of plant and animal species present on earth．Environmentalists believe that many millions of species exist．As all these living organisms are dependent on each other in some way, biodiversity is desirable．Any loss to the planet is actually a loss for mankind as well, and it is our responsibility to try and save Earth's biodiversity．

　　Biodiversity has a vital role to play in the evolution(演变)of species．Species become extinct, but new species evolve, and this is how a balance is maintained．This may sound pretty simple, but it takes millions of years for changes to take place．

　　Biodiversity is also very important to the stability of food webs．Damage to them can mean disaster for an entire ecosystem．The extinction of a single animal species can put huge pressure on the numerous other species dependent on it．

　　Biodiversity also has an important role to play in human society．Apart from being the most intelligent species on earth, human being are also the most dependent．We depend on nature to meet our basic needs．When we change the balance of nature to create our cities and bring about our technical advances, we knowing or unknowing cause great damage to the ecosystem．This must be understood, and the damages must be reversed(颠倒)in any way they can to ensure that the balance of the ecosystem is maintained．

(1)

We learn from the first paragraph that ________．
[　　]
A．	biodiversity can be seen
B．	all living species are found on earth．
C．	people everywhere are aware of the importance of biodiversity
D．	the loss of any species can affect humans

(2)

Why can change in food webs lead to disaster?
[　　]
A．	Because it can make people suffer from disease
B．	Because it can put huge pressure on some species
C．	Because it takes a long time for such changes to take place
D．	Because it will damage ninety-nine percent of species

(3)

What does the underlined word probably mean?
[　　]
A．	Immovability
B．	Peace
C．	Strength
D．	Variety

(4)

We learn from the last paragraph that ________．
[　　]
A．	humans are as independent as they are intelligent
B．	the balance of the ecosystem is easily maintained
C．	nature has given us a lot
D．	nature is taking revenge on us

(5)

Which of the following may be the best title for this passage?
[　　]
A．	Food Webs are Closely Related to Biodiversity．
B．	Biodiversity Plays a Very Important Role in Evolution
C．	How Biodiversity Affects Human Society．
D．	Understanding Biodiversity and Its Importance．

答案：1．D;2．B;3．A;4．C;5．D;

练习册系列答案

优化学习暑假40天江苏人民出版社系列答案

快乐暑假学段衔接提升方案新疆美术摄影出版社系列答案

假期作业济南出版社系列答案

快乐假期暑假生活延边人民出版社系列答案

学练快车道快乐假期暑假作业新疆人民出版社系列答案

文轩图书小学升初中衔接教材山东数字出版传媒有限公司系列答案

新校园暑假生活指导山东出版传媒股份有限公司系列答案

浙大优学小学年级衔接导与练浙江大学出版社系列答案

小学暑假作业东南大学出版社系列答案

津桥教育暑假拔高衔接广东人民出版社系列答案

年级	高中课程	年级	初中课程
高一	高一免费课程推荐！	初一	初一免费课程推荐！
高二	高二免费课程推荐！	初二	初二免费课程推荐！
高三	高三免费课程推荐！	初三	初三免费课程推荐！
更多初中、高中辅导课程推荐,点击进入>>

相关习题

科目：高中英语 来源：北京市海淀区高三第二学期期末练习（一） 题型：050

阅读理解

　　During the fourth China Beijing High-tech Industries Week, exhibitions, feature presentations, technological Exchanges and trade talks, and other events are organized.

　　Exhibitions

　　·China International Exhibition Center

　　* Section for China's key science and technology achievements of the Ninth Five-Year Plan (1996---2000)

　　* Environmental protection and energy section

　　* Section for exhibitors from other provinces and municipalities (自治市) and regions of China

　　·China World Trade Center

　　* Exchange and Trade Fair for Science and Technology Books and Sports Information Media

　　* The Trade Fair for Modern Intelligent Houses and Beijing Urban Real Estate

　　·China Millennium Monument

　　* Forum (论坛) and Exhibition of Foreign SciTech Universities

　　·China Agricultural Culture Center

　　* High-tech Construction Products Exhibition

　　Feature Presentation

　　·Science and Education

　　* Scientists Forum on the New Century High-tech Industry

　　* Forum on Environmental Protection

　　* 2001 Forum on Bio-technology on Traditional Chinese Medicine and Natural Medicine Technical exchanges and Trade Talks

　　·Trade talks on financial capital transformation

　　·Sino-Italian Forum and Trade Fair for the Development of IT and Communications Technology

1．If you want to know more about the high-tech achievements of different parts of China, you should go to ___________.

[　　]

A．China World Trade Centre

B．China Millenium Monument

C．China International Exhibition Centre

D．China Agricultural Cultural Centre

2．These sessions mark the achievements of mankind in the fields of ___________.

[　　]

A．electronic communications, energy and education

B．sports technology, film-industry and environmental protection

C．network technology, high-tech industries and traffic

D．medicine, weather broadcast and finance

3．The advertisement is mainly about ___________.

[　　]

A．the major activities of the high-tech week

B．the time-table of high-tech week

C．the names of the meeting places

D．the topic of trade talks

查看答案和解析>>

科目：高中英语 来源：2012届高三英语一轮复习精品同步练习(人教新课标)必修1　Unit 5　Nelson Mandela－a modern hero 题型：050

阅读理解

　　Britain’s seed bank, the only one in the world aiming to collect all of the planet’s wild plant species, has reached its goal of banking 10 percent by 2010．

　　The Millennium Seed Bank Project, run by Kew Gardens－one of the oldest botanical gardens－will officially deposit the 24,200th species on Thursday, a pink, wild banana from China．

　　More than 50 countries are now on board with Kew’s giant task but vast places of the globe, including India and Brazil, still need to join in and donate seeds, director Paul Smith said．

　　The seed bank is one of the largest and most diverse in the world with more than 1.5 billion seeds．Its goal is to help protect the planet’s bio-diversity during a time of climate change．

　　The wild banana seed is under threat of extinction(灭绝)in Southwest China from agricultural development．It is a vital food source for Asian elephants and important for growing bananas for human consumption．

　　Stored at minus 20 degrees centigrade, the seeds can last for thousands of years and await the day that scientists hope never comes－when the species no longer exist in the wild．

　　It is a race against time, Smith said, because in the last decade alone,20 plants held in the bank have already been wiped out in the wild．He estimates that between a third and a quarter will become extinct this century．

　　“It is urgent and it is happening now．An area, the size of England, is cleared of primary vegetation(植被)every year，”Smith said．

　　Because most of the world’s food and medicines come from nature, protecting wild plant species is quite important, scientists say．There are already many other seed banks safeguarding food crops, which only account for 0.6 percent of plant diversity．

　　For Kew’s next goal－to collect a quarter of wild varieties by 2020－the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted．

(1)

What’s the final purpose of the Britain’s seed bank?
[　　]
A．	To collect enough money for the project．
B．	To safeguard food crops．
C．	To protect wild plants from extinction．
D．	To help scientists study wild plants．

(2)

The wild banana seed in China is in danger because of ________．
[　　]
A．	the expanding of farming work
B．	the climate change in this area
C．	the large number of Asian elephants
D．	human’s large consumption

(3)

We can learn from the passage that ________．
[　　]
A．	the seeds in the bank can be used now and then spread all over the world
B．	India and Brazil haven’t joined in the Seed Bank Project at present
C．	there is only one seed bank in the world at present
D．	the wild plants in places like India and China will never die out

(4)

What does the underlined word “It” in Paragraph 7 refer to?
[　　]
A．	The extinction of plant species．
B．	The Millennium Seed Bank Project．
C．	Britain’s seed bank．
D．	Kew Gardens’ next goal．

(5)

Which of the following information isn’t mentioned in the passage?
[　　]
A．	The global partnership of collecting wild plant species．
B．	The temperature condition of the conservative wild plant species．
C．	The government’s financial support for the seed bank project．
D．	Scientists’ concern on the extinct wild plant species．

查看答案和解析>>

科目：高中英语 来源：必修二导学英语译林译林版 题型：050

阅读理解

　　Exciting places to go and fun things to do

　　Want an exciting holiday but don’t know what you can do or where you can go? Don’t worry．Here are the top five adventure destinations selected by ?Vogue? magazine this year．

　　Diving

　　Wherever there’s a coral reef(珊瑚礁), the chances are there are divers nearby．Diving is one of the fastest-growing water sports in the world．Among the world’s favourite diving spots are the northern edge of Australia’s Great Barrier Reef(大堡礁)and the Maldive Islands(马尔代夫群岛)in the Indian Ocean．There is enough underwater activity to satisfy the most demanding diver．

　　Skiing

　　People have been skiing since 3000 BC, but the birth of modern skiing－for pleasure rather than necessity－only began in the late 19th century．Since then, winter’s top sport has become an industry．European countries, especially those along the Alps(阿尔卑斯山), are famous for their skiing spots．Norway, France and Switzerland are good choices．There you can enjoy plenty of exercise among the mountainous forests while breathing the fresh air．Within a couple of lessons, you will be gliding(滑行)through the trees in style．

　　Many beautiful mountain paths are now linked by steel cables(钢索)and ladders．You can work your way up the kind of rocks that would otherwise be only fit for birds．Besides the proper equipment, you often need a strong will．Europe’s highest mountain, Mont Blanc(勃朗峰)at 4807 metres, is a common goal for climbers worldwide．

　　White water

　　At first it all seems rather easy as you drift(漂流)along with the gentle current(水流)－the water only occasionally reaching over the sides of your raft．And then suddenly, you realize why they call it white-water rafting．

　　First comes the dull, distant roar of rapids(水流的咆哮声), then a wash of white water and finally the roller-coaster(过山车)ride that turns you at top speed down the river．The Bio-Bio River in Chile(智利)and the Colorado River in the US are among the finest white-water destinations．

　　Safari

　　In a zoo without bars, safaris(游猎)are adventure in the purest form．Out on safari, it is the animals who rule the land．From jeeps, you can see the struggles of life and death in a wide variety of wildlife, such as elephants, lions, birds and snakes．

　　The national parks in Africa are the perfect places for safaris．

(1)

Which is the favorite spot for diving?
[　　]
A．	Australia．
B．	Indian Ocean．
C．	Alps．
D．	Great Barrier Reef．

(2)

If you want to enjoy yourself by skiing along the Alps, you need ________．
[　　]
A．	to learn about Alps
B．	to attend several courses
C．	to become used to snow
D．	to go to Europe

(3)

The underlined sentence means________．
[　　]
A．	it is difficult to climb up
B．	we can easily climb up
C．	birds like to climb up
D．	it is too high for us to climb up

(4)

This passage is actually taken from ________．
[　　]
A．	geography book
B．	travel guide
C．	sports magazine
D．	magazine about man and nature

查看答案和解析>>

科目：高中英语 来源：江西省赣县中学2011届高三适应性考试英语试题 题型：050

阅读理解

　　Researchers in Britain are driving the environmental movement to a new level．A team from the University of Warwick has built what it calls the world’s first completely environmentally friendly Formula Three racing car．

　　The car is made mainly of renewable materials, like plants and vegetables．The structure around the car is made from natural plant fibers and potatoes．The steering wheel(方向盘)is made from root vegetables like carrots．The engine uses bio-fuel made from vegetable oil and waste chocolate．

　　The new racing car is extremely fast．The car has a top speed of two hundred fifteen kilometers

　　an hour．And it can go from zero to ninety-five kilometers an hour in just two and a half seconds．

　　The racing car meets all of the Formula Three racing requirements except for its biodiesel(生物柴油)engine．

　　Automobile racing is one of the most widely watched sports in the world．But it is also considered one of the least friendly sports to the environment．Racing cars burn a lot of fuel, and create a lot of air pollution．In recent years, the racing industry has taken steps to protect the environment．More racing companies are now producing cars that use less energy．These cars produce less pollution than cars that depend on traditional fuel, like gasoline．

　　Last month, the new racing car was set to run in its first competitive race at the Formula

　　Three Championship Final at Brands Hatch．It would have been the first biodiesel-powered car to raceat Formula Three．Current Formula Three rules let only gasoline-powered car to compete．Officials needed permission from all of the Formula Three racers for the biodiesel-powered car to compete．They were unable to contact one of the drivers, so the new racing car didn’t appear in the event．In test runs, the new racing car was the fifth fastest among the Formula Three race cars．Supporters are hoping to have the fuel problem solved in time to compete in the next season．

(1)

What’s the second paragraph mainly about?
[　　]
A．	What materials the new racing car is made of．
B．	Why researchers built the new racing car．
C．	The characteristics of the new racing car．
D．	The process of the new racing car being designed．

(2)

According to the passage, the _________ of the new racing car doesn’t meet the Formula Three racing requirements．
[　　]
A．	speed
B．	appearance
C．	weight
D．	engine

(3)

It can be inferred from the passage that _________．
[　　]
A．	the new racing car is the first environmentally friendly car
B．	automobile racing could be forbidden in the near future
C．	many people like to watch automobile racing
D．	the new racing car will be allowed to compete in the next season of Formula Three racing

(4)

In recent years, racing companies are producing cars that _________．
[　　]
A．	burn more fuel
B．	go more quickly
C．	produce less pollution
D．	cost less money

(5)

Why didn’t the new racing car compete at the Formula Three Championship Final last month?
[　　]
A．	Because the new racing car still needs testing．
B．	Because officials needed each racer’s permission but failed to contact one．
C．	Because there’re some technical problems to be solved．
D．	Because few drivers think it is fast enough．

查看答案和解析>>

科目：高中英语 来源：湖北省钟祥一中2012届高三5月适应性考试(三)英语试题 题型：050

阅读理解

　　As a boy growing up on a farm near the Caribbean coast of Colombia(哥伦比亚), Alvaro Cogollo loved both plants and vallenato, the traditional music of the region．As a biology student in the 1970s, Cogollo traveled around the country to document its rich botanical heritage and, informally, studied the music that tells an important story of Colombia．

　　“We were colonized by the Spanish; later, Africans were brought as slaves to exploit gold mines; and the native peoples were already here,” he says．“That is what authentic vallenato represents with its three instruments：the accordion(手风琴), from a European origin; la caja drum, which is of African origin; and la guacharaca, a beating instrument made from a palm tree, which is from native American origin．”

　　Over the course of his nearly four-decade career, Cogollo has discovered more than 150 new species of plants, 17 of which bear his name．Although Cogollo never earned a PhD, his colleagues say he's made invaluable contributions to knowledge of Colombia's plant at a time when deforestation(砍伐森林)is a big threat to the country' s biodiversity．Governments have focused on trying to move the country out of poverty and conflict through exploiting its natural resources, not through scientific resource development．But Cogollo sees things a different way．By educating the public about alternative uses for the land, and researching plants' potential uses－including as medicines, foods, and bio-fuels－Golombia could improve its economy and quality of life without neglecting conservation, Cogollo says．

　　Cogollo's other major achievement has been the transformation of a neglected botanical garden in a Medellm neighborhood into a well-known center for research, environmental education, and community gatherings．What had been a club for wealthy orchid enthusiasts now offers free admission and attracts rich and poor alike．The success of the botanical garden has in turn contributed to the transformation of Medellm．Once seriously damaged, by violent wars between armed groups, the city has had some improvements that include better public safety, tougher pollution controls and the creation of green spaces．

　　What Cogollo has focused his latest efforts on is teaching Colombians from all social classes and backgrounds about the importance of biodiversity and conservation through a shared musical heritage．“The fact that Alvaro's been able to give talks to audiences filled with all kinds of people is very important, and that's what happened in Medellm the first time he talked about vallenato music,” Dr．Forcro says．“People sitting there had no idea of environmental conservation, and then they did．”

(1)

What's the main feature of vallenato music?
[　　]
A．	It records the history of Colombia．
B．	It sounds like the voice of plants．
C．	It plays with local instruments．
D．	It has origins from all over the world．

(2)

While protecting the environment, Cogollo attached importance to ________．
[　　]
A．	the research of music
B．	the protection of plants
C．	the improvement of people's life
D．	the communication with different people

(3)

The purpose of rebuilding the botanical garden is ________．
[　　]
A．	to raise the public's environmental consciousness
B．	to set up a club for rich orchid enthusiasts
C．	to give talks about vallenato music
D．	to create a fair economic system

(4)

People from different backgrounds came to Cogollo's reports about biodiversity mainly because of ________．
[　　]
A．	their common interest in Vallenato music
B．	their improved environmental consciousness
C．	his popularity in environmental protection
D．	his previous achievements in the city development

查看答案和解析>>

同步练习册答案