radios, cellular telephones and other electronic equipment.
Electronic trash, or e-waste, is piling up faster than ever in American homes and businesses. People
do not know what to do with old televisions or computers so they throw them in the trash.
National Solid Wastes Management Association (NSWMA) state programs director Chaz Miller says
the large amount of electronic waste Americans produce is not unexpected.
The US Environmental Protection Agency (EPA) estimates more than 400 million consumer electronic
items are dumped each year, and there is a push by more states to ban the waste from landfills (垃圾填埋场)
and create recycling programs. They can be torn apart and sorted for useable parts.Mike Fannon who runs
the plant in Baltimore, says, "There are a lot of valuable metals that can be recovered and reused instead of
just putting them in the landfill, and in certain components there are some materials that should not really
be in the landfill," Fannon explained.
Fannon says nearly 20 percent of electronic waste is recycled nationwide.Thirteen years ago, it was only
about 6 percent.Recycling rates continue to rise as more communities have banned electronics from landfills
in an effort to keep e-waste poisons like lead (铅) and mercury (汞) out of garbage dumps.
This year several states like Vermont imposed a ban on electronic waste in landfills. More than 25 other
states have also adopted landfill bans, e-waste recycling programs or both.Chaz Miller says more can be
done to boost electronic waste recycling.
"We can do much better," noted Miller. "I think clearly our goal should be to do as well as we do recycling
newspapers."
B. Old computers.
C. Old cell phones
D. Old newspapers.
B. Because it might damage the environment.
C. Because it can be shipped to other countries.
D. Because the landfills are already full.
B. Selling it.
C. Burying it.
D. Breaking it.
B. Chaz Miller works for EPA.
C. All states in the US have banned e-waste from landfills.
D. Experts are optimistic about the future of e-waste.
very few people have deeply considered what it"s really about.
When you ask people what it means to relax, most will answer in a way that suggests that relaxing is
something you plan to do later-you do it on vacation, when you retire, or when you get everything done. This
means, of course, that most other times (the other 95 percent of your life) should be spent nervous, restless,
rushed, and mad. Could this explain why so many of us perform as if life were one great big emergency
(紧急事件)? Most of us put off relaxation until our " in-basket (收文篮)" is empty. Of course it never is.
It is useful to think of relaxation as a quality of heart that you can own on a regular basis rather than
something left for some later time. You can relax now. It"s helpful to remember that relaxed people can still be
super achievers and, in fact, that relaxation and creativity go hand in hand. When I"m feeling upright, for
example, I don"t even try to write. But when I feel relaxed, my writing flows quickly and easily.
Being more relaxed includes training yourself to react differently to the dramas (戏剧) of life-turning your
melodrama (情节剧) into a sweet-drama. It comes, in part, from reminding yourself over and over again
(with loving kindness and patience) that you have a choice in how you respond to life. You can learn to relate
to your thinking as well as your situation in new ways. With practice, making these choices will translate into
a more relaxed self.
B. what realxation really means
C. when to relax
D. the ways to relax
B. emergency
C. relaxation
D. in-basket
B. something to be done now
C. something never to be done
D. something to be done like a dream
B. No one really understands what relaxation is.
C. relaxation is a good state of mind one should keep every day.
D. 95 percent of your life should be spent in a relaxed way.
to go. This battery-powered, zero-emission (meaning it doesn"t pollute the air) vehicle runs mainly on
renewable energy. Solar panels on the Eclectic"s roof absorb sun rays when you"re driving. On windy
days, you can connect a machine to the car"s roof that collects energy from the wind while you"re parked.
The Eclectic"s top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged.
Zipping (迅速行进) around the neighborhood has never been better.
Here"s an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock"s tank (箱) with
water, add some lemon juice, and the clock will display the time without the need for environmentally harmful
batteries. There are two sets of metal electrodes (电极) inside the water tank. Water contains ions (离子)
that carry negative and positive charges. These ions complete a charge between the electrodes, creating
enough energy to power the clock. Just refill the tank every few weeks, and this clock will keep on ticking.
Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier.
(The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its original push
to 350 miles an hour from a jet engine. Then a rocket fires up, pushing the SSC past 1,000 miles an hour.
In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle (角度).
You"re having a blast at your friend"s birthday party. But when it"s time to bring out the cake, everyone
crowds around, blocking your view. No worries. Throw the Triops into the air, and this clever camera
captures the view from above. The Triops can take three pictures at once, each from different angles. You
can also record sounds and command the Triops to start shooting whenever it hears that noise. That"s one
smart camera.
B. They are difficult to operate.
C. They can be powered by water.
D. They are environmentally friendly.
B. is suitable for a long trip
C. can turn wind into energy
D. has only a little gas emission
B. enjoying yourself
C. blowing out a candle
D. recording sounds
B. The driver of the SSC must be of great size.
C. The color of the Bedol Water-powered Clock is like that of lemon.
D. The SSC doesn"t have anything to do with a rocket actually.
Besides giving off gases and dusts into the air, humans produce waste that is poured on the environment.
Often, this waste produced by major industries and people is harmful to both nature and human life.
One of the main causes of the large amount of dangerous waste is that people do not realize how large a
problem it is. Because it can be simply removed and sent to a landfill (废渣填埋场), the problem is often
believed to end there. In addition, industries have often shown an unwillingness to find ways to deal with
dangerous waste because of the related expenses. Many industries and governments build simple landfills to
store waste, and often just pour waste chemicals into nearby bodies of water. Often, chemicals used for
industrial production cause dangerous forms of waste. The amount of these chemicals has increased greatly in
the past, but it is often difficult and expensive to get rid of these chemicals or to store them in a way safe to
human life and the environment.
Every year, major health problems result from dangerous waste. Sadly, it is often only after someone has
died or become seriously ill that governments will take measures to reduce levels of harmful waste.
Some governments have realized how serious the dangerous waste problem is and are now trying to settle
this problem. They are also trying to limit the amount of waste industries are allowed to produce.
Not only governments but ordinary people as well must work together to solve the problem. They can
choose not to buy those products which require the production of dangerous waste, and produce less harmful
waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at
least one third using existing technologies and methods.
B. Danger of Harmful Waste to Mankind
C. Dangerous Waste and Water Pollution
D. Environmental Protection
B. do not know where to place the dangerous waste
C. are not clear about how serious the dangerous waste problem is
D. are not sure about where harmful waste ends
B. How to increase their production.
C. How to store harmful waste.
D. How to cut down the related costs.
B. Present technologies have settled the harmful waste problem.
C. Everyone should obey the government rules for the problem.
D. To solve the problem requires the efforts of the whole society.
They collected or killed only enough for the clan"s survival. Early clans were nomadic, which means that
they did not stay in one place. Instead, they moved around, following the animals that were their main
food source and seeking areas where seasonal plants grew wild. Moving around seasonally helped to
protect the environment. The land had time to recover and animals had time to breed (繁殖) before the clan
returned for the next season.
As time went by, these small family clans joined with others to form larger groups for protection. Joining
with other clans gave them more hunters and more women to help cut up the meat and share it between
families. Eventually, people tamed (驯养) wild animals such as dogs and horses. People settled around rivers
and fertile plains to share responsibilities and duties. Then, people began to plant crops instead of moving to
areas where the plants grew. This development changed the environment.
Traditional forms of work also changed. Some people were hatter at performing a particular task than
other clan members, so they began to specialize in things they were good at doing. This also meant that they
began to exchange their goods for things that others produced.
People began to communicate with distant tribes. Land was cleared for roads. Foreign plants and animals
were transported to places where they had not existed before. Specialization also gave people more free time.
So art, dance and music became important ways of expressing feelings and thoughts. This was how many
great civilizations started.
Compared to the past, modern civilization has experienced many changes to become the highly developed
society that exists today. Populations have increased rapidly. Forests have been cleared for farms. Inventions
and technology have made work easier.
However, pollution and other serious problems have also resulted from human progress. As concerned
citizens, it is up to us to learn from past mistakes and to help maintain and improve our environment.
B. they ate only vegetables
C. they killed only enough for food
D. they loved animals
B. to seek safety
C. to share caves
D. to protect environment
B. Modem civilization began when people started to live together in big groups.
C. Modem advancements are always good for the environment.
D. People began to exchange goods because they didn"t have enough money.
B. civilization has improved traditional forms of work
C. our environment has been affected by human progress
D. early people understood environmental protection
In yesterday"s circus (马戏团) show, a tiger suddenly attacked its trainer and had to be shot dead.
As the circus packed up and left, circus officials said the show would go on, even without tigers.
However, the officials can"t simply turn a blind eye to the ethical problems left behind. Even before
this tragedy (悲剧), animal rights activists protested against keeping wild animals in unnatural conditions
and forcing them to suffer for the profit (利润) of circus organizers.
It is now time for us to take effective steps to make sure that circus animals are treated properly.
Circus Safe for Animals
Our circus recently suffered a most tragic event in its history. While we are thankful for the pity from
the public, we are also astonished by the opinion expressed in "Tragedy at the Circus."
First, our performing animals are not taken from the wild. As to the ethical problems. we always believe
humans and animals can-and should-live together nicely. To us, the performing animals are representatives
of their species (物种), and our circus is one of the only places left willing to support this special role of
performing animals in the existence of the species. Those who argue that circus life is harmful to animals
show little knowledge of these facts. Life in the "wild" is unsafe, but a continuous struggle for existence.
To overlook these reslities is the greatest fault against the animal kingdom.
This circus has proven that animals are stronger and smarter than we could imagine. Within the circus
is a joyful atmosphere for both animals and humans: people are educated, and species saved.
B. To express worries about ainimal trainers"safety.
C. To deal with the difficult situations of the circus.
D. To call for action to protect circus animals.
B. Continue its performances.
C. Use fewer wild animals.
D. Limit its profit.
B. They struggle continuously with human beings for existence.
C. They are helpful in saving their species.
D. They have equally natural living conditions as wild animals.
B. A newspaper article and a reply to it.
C. Two parts of a newspaper article.
D. Two newspaper reports.
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- 2溴化碘(IBr)的化学性质跟卤素单质相似,它跟水反应的化学方程式为: IBr + H2O =" HBr" + HIO,下
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- 4植物的叶芽中具有分裂能力和将来发育成侧芽的结构分别是( )A.叶原基和芽原基B.生长点和芽轴C.生长点和叶原基D.生长
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- 6下列做法能使pH增大的是 [ ]A. 浓盐酸放置在空气中 B. 食盐水露置在空气中 C. 先将pH试纸湿润后测碱
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- 9文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加:在缺词处加一个漏字符号( ∧),并在
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- 2人与自然应如何相处?__________________________________________________
- 3写出你最喜欢的一句名言,并说说喜欢它的理由。名言:_____________理由:_____________
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