欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

閱讀理解
     In a world with limited land,water and other natural resources,the harm from the traditional business
model is on the rise.Actually,the past decade has seen more and more forests disappearing and the globe
becoming increasingly warm.People now realize that this unhealthy situation must be changed,and that we must be able to develop in sustainable ways.That means growth with low carbon or development of
sustainable products.In other words,we should keep the earth healthy while using its supply of natural
resources.
     Today,sustainable development is a popular trend in many countries.According to a recent study,the
global market for lowcarbon energy will become three times bigger over the next decade.China,for
example,has set its mind on leading that market,hoping to seize chances in the new round of the global
energy revolution.It is now trying hard to make full use of wind and solar energy,and is spending a huge
amount of money making electric cars and highspeed trains.In addition,we are also seeing great growth in
the global markets for sustainable products such as palm oil,which is produced without cutting down
valuable rainforest.In recent years the markets for sustainable products have grown by more than 50%.
     Governments can fully develop the potential of these new markets.First,they can set high targets for
reducing carbon emissions (排放) and targets for saving and reusing energy.Besides,stronger arrangement of public resources like forests can also help to speed up the development.Finally,governments can avoid
the huge expenses that are taking us in the wrong direction,and redirecting some of those expenses can
accelerate the change from traditional model to a sustainable one.
     The major challenge of this century is to find ways to meet the needs of a growing population within the limits of this single planet.That is no small task,but it offers abundant new chances for sustainable product
industries.
1. The traditional business model is harmful because of all the following EXCEPT that  ________.
A. it makes the world warmer
B. it consumes natural resources
C. it brings severe damage to forests
D. it makes growth hard to continue
2. What can we infer from Paragraph 2?
A. China lacks wind and solar energy.
B. China is the leader of the lowcarbon market.
C. Highspeed trains are a lowcarbon development.
D. Palm oil is made at the cost of valuable forests.
3. To full develop the lowcarbon markets,,government can ________.
A. cut public expenses
B. forbid carbon emission
C. develop public resources
D. encourage energy conservation
4. We can learn from the last paragraph that businesses have many chances to ________.
A. develop sustainable products
B. explore new natural resources
C. make full use of natural resources
D. deal with the major challenge
5. What is the main purpose of the passage?
A. To introduce a new business model.
B. To compare two business models.
C. To predict a change of the global market.
D. To advocate sustainable development.

FITNESS CENTRE TIMETABLE
 
 


     Body Power: This class uses weights and aerobic movements to increase strength while burning fat. It is suitable for all levels of fitness.
     Aerobics(有氧運動): This is a low to medium level of difficulty aerobics class. It is good for beginner
to average levels of fitness.
     Beginner Aerobics: This class has low levels of difficulty and simple aerobic movements. It is mainly for people who have not exercised before or who are just returning after a long break or injury.
     Body Stretch: This is relaxation class which stretches all the muscle groups. It is suitable for all levels of fitness. People who exercise regularly or have a stressful lifestyle would also benefit from this class.
     Body burn: This is a high level of difficulty aerobics class that mainly targets fat burning. It is only for
those people with a very high level of fitness.
1. On Wednesday the fitness class at 6:30 pm is ________.
A. Aerobics  
B. Body Power      
C. Body Burn  
D. Beginner Aerobics
2. The two classes that are suitable for all levels of fitness are ________.
A. Aerobics and Body Power      
B. Body Power and Body Stretch
C. Body Burn and Aerobics
D. Body Stretch and Beginner Aerobics
3. Lena wants to go to the city Gym on Saturday. She has not exercised for a long time. The best time for her to go would be ________.
A. 3:00 pm  
B. 5:30 pm  
C. 7:15 am  
D. 7:30 pm
4. In which class are weights used?
A. Aerobics  
B. Body Burn.  
C. Body Power  
D. Body Stretch
5. The main goal of the Body Burn class is to _________.
A. reduce stress  
B. reduce fat levels  
C. increase strength  
D. increase muscle size

閱讀理解
     Trees are useful to man in three important ways: they give him wood and other useful things, they give
him cool places, and they help to stop drought and flood.
     Unluckily, in many parts of the world, man has not found that the third of these points is the most
important. Man wants to make money from trees, so he has cut them down in large numbers, only to find
that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.
     This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil, make the rain in, and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.
1. The most important points of trees to man is ________.
A. they help him to make money            
B. they give him cool
C. they give him wood and other things      
D. they help him to stop drought and floods
2. In many places forests slowly disappear because ________.
A. many trees have been cut down by man            
B. new trees are not well looked after
C. man has not paid enough attention to planting trees    
D. all the above
3. Land becomes desert after all trees are cut down because ________.
A. roots of trees break up the soil      
B. there are too many rainfalls to make it
C. strong winds bring a lot of sand      
D. no tree keeps the rain and protects the top-soil.
4. Which title best fits the passage?
A. Trees and Man                        
B. The Function of Tree Wood
C. How do People do with Trees?            
D. The Usage of Tree Roots

閱讀理解

     The hole in the Earth's ozone layer (臭氧層)has until now protected Antarctica from the worst effects
of global warming. But scientists have warned that as the hole closes up in the next few decades,
temperatures on the continent could rise by around 3C on average, with melting ice contributing to a
global sea level increase of up to 1. 4 metres.
     In the past decades the western Antarctic has seen rapid ice loss as the world has warmed,but the
other parts of the continent have, paradoxically, been cooling,resulting in a 10% increase in ice in the seas
around the region. This is because the hole in the ozone layer has increased cold winds in Antarctica,
making much of the continent surface colder than usual.
     But now that the gasses that cause the ozone hole have been banned, scientists expect the hole to
repair itself within the next 50 to 60 years. By then the cooling effect will have faded out and the
Antarctic will face the full impact of global warming. This means an increase in average air temperatures
of around 3? and a reduction in sea ice by around a third.
     The biggest threat to the continent comes from warming seas. Robert Johnson, a scientist who
monitors Antarctica ice sheets, said, "The ice sheets in Antarctica are hundreds of metres thick. But
once warm ocean waters start flowing underneath, the ice will begin thinning and could break up very
quickly. " Thinning ice sheets cause ice to break away from the continent and to melt even faster.
Escaping ice from western Antarctica has already resulted in a 10% rise in global sea level in recent
decades.
     Johnson believes that international action to reduce global warming is required immediately or it may
be too late. "Everything is connected-Antarctica may be a long way away but it is an important part of
the Earth's  system," said Johnson. "It contains 90% of the world's ice, 70% of the world's fresh water
and that is enough, if it melts completely,to raise sea levels by 63 metres. "
     Even in a worsecase situation scientists don't expect the ice to entirely disappear,but predict that,
because of the melting ice sheets,average sea level rise will be around 1. 4 metres higher by the end of
the century.

閱讀理解

根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項，選項中有兩項為多余選。

閱讀理解

     Scientists studying the impact of climate change on the Arctic need to consider ways to reduce their
own carbon footprints(碳排放量), says Ryan Brook, a researcher who regularly flies north to study the
health of caribous (馴鹿). He calls on scientists to show leadership by examining and sharing ways to
reduce the impact of working in polar regions.
     "The importance of the research is not at question here. It is important to our understanding of and
adapting to climate change. But we need to think about better approaches." says Brook.
     "This is an issue for all scientists, though polar researchers often travel particularly long distances
using commercial air travel. We also rely extensively on small aircraft, icebreakers, and snowmobiles, all
of which produce large amounts of carbon. "
     Brook studies the health of caribous herds in Nunavut and Northwest Territories. He works with
northern wildlife managers. This work typically takes him north five or six times per year and when he
calculated his own carbon footprint, he was not happy with the result.
     "My research footprints are about the same as the annual footprints of an average Toronto resident.
Basically, I have two footprints-my own personal life, which is moderate, and my research footprint."
     Climate scientists can rightly argue that Arctic research is a specialized field and the community of
scientists who travel north is relatively small. Even if all scientists working in the north reduced their
carbon emissions, it would not make a big impact on the global scale. For Brook, it's the option that
matters.
     There are ways researchers can reduce the amount of carbon they use. Some helicopters use less
fuel than others. Solar and wind power are alternatives to gasfired generators. And while carbon offsets
(抵消) don't reduce the amount of carbon emitted, they are an easy first step.
     "There aren't necessarily any easy answers, but we need to start talking about it." says Brook. "This is
particularly important for the next generation of scientists being trained and I hope to see them become
leaders in this issue."