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Clean energy may also be called renewable energy or green energy,and it specifically refers to energy produced from renewable resources without creating environmental debt.There are several other ways that this term can be explained,however.It may refer to energy processes that pollute less or,alternately,to energy that doesn't pollute at all and doesn't use resources that can't be easily renewed.The basic forms of clean energy are often referred to as those that come from water,wind,or sun.
It's hoped that by using this type of energy,especially as a total substitute for use of things like oil,might help to reduce global warming and greenhouse gas emission,creating a safer planet for all people.In reality,clean energy has its problems too,which have not been fully realized because it is not a complete replacement for energy created by non-renewable resources.For instance,wind farms that can provide power may have significant effect on local bird populations,and birds of some types can face serious reduction of numbers when they live near wind farms.
Nevertheless,these negative consequences tend to be relatively small in comparison to the use of oil or non-clean coal.Many environmentalists reason that,though no power source is completely without risk,green energy could have a wide-reaching effect on healing the planet and perhaps stopping the tide of global warming.An additional reason why it can be so desirable is because it tends to come from sources that are free.While controlling this energy costs money,wind and sun aren't owned by anybody in particular.Otherwise,political problems may be created and wars may be fought for a certain resource.For example,most
of the oil in the world is gathered in a few places,and the majority is located in the Middle East.So they believe that wind or solar energy could lead not only to a cleaner planet,but also a more peaceful world.
Much remains to be done to figure out how to best control renewable energy sources and how to use them to their best advantage.One issue is how to transport collected energy from one place to another,since many places that produce this energy are located in remote locations.Changing the power net to adapt to
different sources of energy can help this problem,but this has yet to occur on a wide scale.
(1)What is the first paragraph mainly about? AA
A.The definition of clean energy.
B.The importance of clean energy.
C.The basic forms of clean energy.
D.The bright future of clean energy.
(2)What can be inferred from paragraph 2? BB
A.Clean energy can be a total substitute for other resources.
B.New problems may be brought about by using clean energy.
C.It is not a good idea to build wind farms for producing energy.
D.The efficiency of clean energy is great enough to stop global warming.
(3)Many environmentalists hold the view that DD .
A.the power from wind and sun is open to everyone
B.it is free of charge for people to control clean energy
C.using clean energy may lead to wars between countries
D.the negative part of clean energy can be totally ignored
(4)How does the author sound at the end of the text? CC
A.Ambiguous.
B.Positive.
C.Cautious.
D.Puzzled.
【考點】說明文.
【答案】A;B;D;C
【解答】
【點評】
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發(fā)布:2024/5/23 20:38:36組卷:10引用:2難度:0.6
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1.Most of us spend our lives seeking the natural world.We go fishing,sit in the garden,have a picnic,live in the suburbs or go to the seaside.The most popular leisure activity in Britain is going for a walk.When joggers jog,they don't run on the streets.Every one of them tends to go to the park or the river.
But despite this,our children are growing up naturedeprived(剝奪).I spent my boyhood climbing trees.These days,children are robbed of the ancient freedom,due to problems like crime,traffic,the loss of the open space and strange new ideas about what is best for children,that is to say,things that can be bought,rather than things that can be found.
The truth is to be found elsewhere.A study in the US:families had moved to better housing and the children were assessed for ADHD—Attention Deficit Hyperactivity Disorder(注意力缺陷多動癥).Those whose accommodation had more natural views showed an improvement of 19%;those who had the same improvement in material surroundings but no nice view improved just 4%.
ADHD is one of the great problems of modern childhood.One study after another indicates that contact with nature gives huge benefits to ADHD children.However,we spend money on drugs rather than on green places.
The life of old people is measurably better when they have access to nature.The increasing concern for the growing population of old people is in quality rather than quantity of years.And study after study finds that a garden is the single most important thing in finding that quality.Even problems with crime and aggressive behaviour are reduced when there is contact with the natural world.
We need the wild world.It is essential to our wellbeing,our health and our happiness.
(1)According to the author,people enjoy
A.jogging on the street
B.running in the gym
C.shopping in the supermarket
D.sitting in the garden
(2)From the second paragraph,we can see that
A.Children don't want to approach nature
B.children probably spend less time in nature nowadays
C.climbing trees will certainly do good to the children
D.children tend to be happier as a result of their material satisfaction
(3)In what way do people benefit from their contact with nature?
A.Children with ADHD can be cured.
B.Children's performance at school is greatly improved.
C.Problems with crime and violent behavior will easily be solved.
D.A garden nearby improves the quality of old people's life.
(4)what is the main idea of this passage?
A.Access to nature improves our life.
B.Nature treats children for ADHD.
C.Getting close to nature reduces crime.
D.Man can't live without natural areas.發(fā)布:2025/1/6 16:30:6組卷:0引用:1難度:0.5 -
2.It is widely believed that biodiversity(生物多樣性)is promoted to save species.But in reality species exist only as part of ecosystems and cannot survive unless their ecosystems are protected along with as much as possible of the diversity they contain.
Protecting habitats(棲息地)is important for keeping biodiversity.In 2003,over 102,000 habitats covering nearly 19 million square kilometres,or 11.5% of the world's land surface,were under some form of protection.Though this is a great improvement since 1962,when just 1,000 protected habitats were listed,it is still not considered enough to stop the ecocide that is endangering the world's biodiversity.
For a number of environmentalist,protecting the world's 25 biodiversity hotspots(熱點地區(qū))is critical to saving habitats and species.But many hotspots are endangered already,having lost up to three-quarters of their original plants.
The poor state of most biodiversity hotspots results directly from population growth and migration(遷移) into these areas.A study found that by the mid-1990s around 1.1 billion people lived in these hotspots.Moreover,the annual population growth rate in these areas was 1.8%,higher than the global average of 1.4%.The PAI report concluded that human-related environmental changes will continue to put pressure on hotspots.Therefore,keeping biodiversity requires paying close attention to population size.
Protecting hotspots is not simply a matter of putting up fences and employing guards.The best results are achieved when local people are educated about the value of wildlife,and actually gain a share of the benefits from eco-tourism.Only then do they have a chance to see the benefits of protecting hotpots.
(1)What can we infer from paragraph 1?
A.The loss of any species can affect humans.
B.Endangered species are paid more attention to by humans.
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(2)What does the underlined word "ecocide" in paragraph 2 mean?
A.Ecosystem protection.
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(3)What's the direct cause of the terrible state of the hotspots?
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(4)What's the author's opinion on protecting the hotspots?
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D.To inform diverse views on the changes of Roald DahI's books.發(fā)布:2025/1/30 8:0:1組卷:1引用:1難度:0.4