During the 19th century, it was common to hear people in Europe and America say that the resources o——青夏教育精英家教网—

     During the 19th century, it was common to hear people in Europe and America say that the
resources of the sea were unlimited. For example, a noted biologist writing in the mid-19th century
commented that none of the great sea fisheries(渔业) are to be exhausted. Today though, there is
evidence that the resources land and the air,  and that the endangered species (种类) include Herring
and Carp as well as the African Elephant, Indian Tiger, and the American Eagle.
     Further, the threats to fish are more alarming in some ways than the threats to animals and birds.
     This is because fish are a much needed food resource and people throughout the world depend on
fish as an important part of their dish,  and the decline (下降) in the fish supply could have extensive
effects on hunger and population.
     Fishermen in the North Atlantic alone annually harvest 20 billion pounds of fish to satisfy food
demands, but it is important to recognize that these practices cannot continue without depleting (耗尽)
fish storage within the next few years. Sea resources are rapidly declining in many parts of the world,
and the problem cannot he ignored (忽视) .
     We can predict that food supplies in the sea can not last forever.

A. Sea resources can last forever.
B. None of the great sea fisheries are to be exhausted.
C. Fish supply has no effects on people.
D. Sea resources are important to people.

4. Which of the following best describes the purpose of the lecture?

A. Unlimited Sea Resources
B. Threats to Animals and Birds
C. Sea Resources on the Decline
D. Protection of Fish

阅读理解。

     Sometime early in the next century, human beings will move to Mars. They will live
there for about a year, and then will be replaced with another group of pioneers. Building
the base on Mars will advance our knowledge of the solar system and aid in our
understanding of the earth.
      We already know that Mars resembles the earth in many aspects : general size,
presence of water, lengthof day, range of temperatures. These resemblances have
caused many people to consider a centuries-long project: to transform Mars.
Transforming means alterinB a planet's surface so that the Earth's life forms can
survive there. This concept, previously found only in science fiction is now being
seriously considered by scientists.
     Transforming Mars is theoretically simple : add nitrogen (氮气)and oxygen to the
atmosphere; pump water to the surface; and add the earth's plants and animals in the
order in which they developed on the Earth. But it will take at least 300 years.
     Some people think that such a project is too huge for humans to undertake, but
there are very good reasons to make the attempt. The earth now contains some 6
billion people and no one has any idea of how many humans the earth can support.
Our very existence and numbers are threatening many other species. We also have
had some experience with transforming our own planet : altering thelandscape ,
theatmosphereand the climate. Currently transforming earth has become a wiser activity
as we try to control global warming, air and water pollution, and' preserve some natural
living places.
      While the possibility of such a project is small, it is not impossible. Even if earthbound
societies come and go in the next 300 years, the project can continue through the work
of the Mars settlers without the need for constant backing from the earth.
The future existence of all the people in our world may very well depend upon our ability
to transform Mars.

1. What does the underlined word " altering"mean in the second paragraph?_______

A. Warming.
B. Changing.
C. Planting.
D. Building.

2. According to the passage the main purpose of transforming Mars is to._______

A. do some scientific research work
B. find out its similarity to the Earth
C. avoid the dying way of many other species
D. find on Mars living place for the increasing human beings

3. The main reason for causing many people to consider transforming Mars is that._______

A. there are some resemblances between the Earth and Mars
B. transforming Mars is theoretically simple
C. our existence and numbers are threatening many other species
D. the development of science and technology is very rapid

4. What's the author's attitude towards the project?______

A. Optimistic.
B. Negative.
C. Sceptical(怀疑的 ) .
D. Objective.

阅读理解。

Most scientists agreed that cloning an entire human being-besides morally
questionable-was filled with technical problems. After all, research into animal cloning
has already shown that there are hundreds of failures, includingmanybadlydeformed
(畸形的)creatures that were usually miscarried.
Now comes word that it might be easier to clone humans than was previously
believed. People have a genetic quirk(怪癖) that might prevent some of the
developmental deformities associated with animal cloning. One gene, called IGF2R,
is normally imprinted in sheep, cows and mice but not in humans. Human clones would
always inherit non-imprinted IGF2R genes, so there would be no chance of a mix-up
and, their growth would be normal. But what of the other 49 0r so imprinted genes
(遗传基因 ) ?No one knows what troublethey might cause. So the fact humans have
one less imprinted gene than mice, sheep or cows means that human
cloningmightbemarginally (轻微地 ,很少地 ) easier , but not necessarily safer.

1. At present, scientists' opinion about cloning human is that_____

A. it will bring out many developmental deformities
B. it faces no moral problems now
C. it might be easier but still not safer
D. it is proved by practice that it is easier, only not so safe

2. What caused many badly deformed creatures in animal cloning?______

A. A gene called IGF2R.
B. A genetic quirk.
C. A non-imprinted IGF2R.
D. Not clearly found.

3. How many imprinted genes might bring danger to human cloning?______

A. 51.
B. 50.
C. 49.
D. 48.

4. The writer didn't say but we can infer that his attitude towards cloning human is that______

A. it should be encouraged
B. it should be properly controlled
C. it should be stopped
D. it should be forbidden by law

阅读理解.

     Climate change could make much of the world too hot for human habitation (居住)
within just three centuries, according to some scientists.
     These scientists found that rising temperatures in some places mean humans would
be unable to adapt or survive. "' It would begin to occur with global - mean warming
of about 7℃, calling the habitability of some regions into question," the researchers
wrote in a paper.
     With 11-12℃ warming, such regions would spread to include the majority of the
human population as currently distributed. Professor Steven said there was no chance
of the earth heating up by 7℃ this century, but there was a serious risk that the
continued burning of gas and coal could create the problem by 2300. "'There's
something like a 50/50 chance of that over the long term," he said.
     The study, which examined climate change over a longer period than most other
research, looked at the "heat stress" produced by combining the influence of rising
temperatures and increased humidity (湿度).
     Professor Steven said climate change research had been "short-sighted" not to
realize the long-term consequences of the influence of greenhouse gases blamed for
global warming. "It needs to be paid attention to," he said. "There's not much we can
do about climate change over the next two decades but there's still a lot we can do
about the longer term changes." "Near 2300, we may be faced with temperature
increases of 12 degrees or even more," Professor Tony Michael said." If this happens,
our current worries about sea level rise, occasional heat waves and bushfires,
biodiversity (生物品种) loss and agricultural difficulties will appear in front of us -- as
much as half the currently inhabited globe may simply become too hot for people to
live there. "

1. Which of the following statements is supported by Professor Steven?______

A. The earth will heat up by 7℃ this century.
B. Burning of fuel adds to the earth's heating.
C. We may be faced with temperature increases of 12 degrees.
D. Climate change would not stop until 2100.

2. From the underlined part in Paragraph 5 we learn that Professor Steven______

A. thinks scientists should do more research on climate change
B. doesn't think we can do anything to avoid global warming
C. believes we can do much to prevent the longer term changes
D. wishes to examine climate change over a longer period

3. The author mainly wants to tell us that _____.

A. the human population is not distributed properly
B. large parts of the earth may be too hot for humans to live on by 2300
C. greenhouse gases are to blame for global warming
D. human beings will die out three centuries later

阅读理解.

     TeleNav Shotgun is a next-generation, Internet - connected GPS navigation device
(导向设备) built for the active business traveler.
     The three C's of value for Internet-connected GPS:
     ●Confidence: Get to meetings on-time and stress-free with real-time traffic alerts.
Find what you need from Internet- connected search.
     ●Convenience :Plan your trips online before you head out of the door. Access the
latest maps automatically.
     ●Current: Get new features as we continuously innovate (创新). Save money on
gas with fuel prices that are updated regularly.
     Many features are specially designed to help the active business traveler.
      ●While driving, TeleNav Shotgun checks for traffic updates along your route every
five minutes. If there's trouble ahead, TeleNav Shotgun will let you know with a friendly
voice and a visual sign. With one tap, you can choose to change course, taking into
account the latest traffic conditions in the area.
     ● In your world, it's often one busy day after another. The last thing you need is the
trouble of writing down addresses so you can put them into your navigation system later.
When life is very busy, TeleNav Shotgun helps keep you organized. With our online
pre-planning feature, you can easily forward addresses to your TeleNav Shotgun from
the convenience of your home or office computer.
     ●We have built one of the largest up-to-date databases of business listings available
online and on a personal navigation device. Look up more than 11 million points of
interest.
Some features that we are currently working on:
     ●Address Share -- Share addresses or your location to meet up with friends more
efficiently.
     ●Weather -- Get up -to -date, detailed weather information.
     ●Commute (通勤) Alerts -- Get emailed alerts about traffic conditions on your
daily commute.
     Price of TeleNav Connected Service
     TeleNav Connected Service Plan Price
     Month - to - Month payment $12
     1-Year Plan $129
     2-Year Plan$239
     "If I was to get a stand alone, it would be the Shotgun." -- JG Mason, Gadgetell
     "I'm connected with TeleNav Shotgun and my whole world is easier to navigate."
-- Dory Delvin

1. When you select your destination, TeleNav Shotgun will ______.

A. judge whether it is convenient for you to take the trip
B. help reserve tickets and rooms in a hotel
C. offer the route with the least traffic delays
D. show the scenery of the place

2. Which of the following statements is NOT an advantage of TeleNav Shotgun?

A. Making your world easier to navigate.
B. Making your busy days easier to manage.
C. Finding what you need with ease.
D. Helping improve your work performance.

3. Which of the following statements agrees with the value of Convenience of TeleNav Shotgun?

A. It is connected to the Internet.
B. It saves money for the users.
C. It can access the latest maps automatically.
D. It has real -time traffic alerts.

4. If you buy TeleNav Connected Service on a 2 - Year Plan rather than the monthly pay,
you can save ______.

A. $12
B. $49
C. $129
D. $239

阅读理解.

     Researchers have discovered that January's huge quake in Haiti caused a tsunami
(海啸). Along with four Haitian colleagues, Dr Hermann Fritz, a professor, travelled
around the coast of Haiti. He wanted to find out what had happened before the
evidence disappeared forever. He had heard reports and saw evidence that a wave
up to 3-meter high had hit some areas of the coast south of the capital following the
quake near Port au Prince. It had killed at least three people and engulfed (吞没)
buildings.
     Dr Fritz presented some of his findings at the Ocean Sciences meeting in Portland
in the US. "This was a relatively small event," he told BBC News." Most of the deaths
were due to the earthquake, but at least three victims we know survived the earthquake
and were hit by the wave."
     These three victims were a father and his two young sons. They were standing
close to the shore in Petit Paradis, watching the wave instead of heading for higher
ground. Draw-back in the water level is a sign that a big wave is coming. "It clearly
showed a lack of tsunami education," Dr Fritz said. "It was pure luck that the wrong
information did not kill more people in this case."
     Despite the great damage it caused, the Haiti earthquake was not of the type
or magnitude (级) usually associated with tsunamis. It had a magnitude of 7.0.
     "Generally anything over 7.5 is cause for concern," explained Eddie Bernard, a
tsunami researcher." But anything between 7 and 7.5 can cause smaller, local tsunamis."
It also occurred on land and, to cause a tsunami, it must happen under the sea.
     "Anything that moves water generates a wave," said Dr Bernard. "And the deeper
the event, the bigger the wave." Dr Fritz explained that the main causes of the Haitian
tsunami were "local landslides". "'But there are fault lines in this region that are in areas
which are more likely to cause a tsunami and, if you have a much bigger landslide, you
could have a much bigger wave," he said.

1. Dr Fritz travelled around the coast of Haiti with his colleagues to ______.

A. find out the magnitude of the quake
B. check the damage to the coasts
C. gather evidence about the wave
D. study the power of the wave

2. The three people who died stood close to the shore in Petit Paradis because ______.

A. their attention was fixed on the beautiful scenery
B. they cared little about the direction of the big wave
C. they didn't see the signs of big waves
D. they didn't know it was time to run for higher ground

3. What Dr Fritz said suggests that ______.

A. the three victims are not worthy of sympathy
B. it was lucky that the loss wasn't greater
C. earthquakes of the magnitude of 7.0 are common in Haiti
D. few Haitians know about tsunamis and earthquakes

4. If the passage is taken from a newspaper, which section should it be in?______

A. Science.
B. Business.
C. Sports.
D. Entertainment.

阅读理解.

     On April twenty-second, some American children stayed out of school but they were
not punished. They were with their parents. As Faith Lapidus tells us, it was Take Our
Daughters and Sons to Work Day.
     The Ms. Foundation for Women started the program seventeen years ago, in 1993.
At first it was just called Take Our Daughters to Work. Gloria Steinem and other
foundation leaders pointed to studies showing that self-image suffers as girls become
teenagers. They can lose trust in their abilities and intelligence, especially in areas like
science, math and technology. So the Ms. Foundation planned a day for parents in
New York City to show girls all the possibilities for them in the professional world.
But there was so much interest, the organizers decided to make it national.
     At first, girls mostly followed their mom or dad around at work to learn about their
jobs. Later, employers and schools began to offer organized activities. But from the
beginning there were protests (反对) from parents and others about the exception of
boys. So in 2003 the day was renamed Take Our Daughters and Sons to Work.
     2007 was the last year that the Ms. Foundation for Women headed the program.
Now, the event is run by a twelve-person group called the Take Our Daughters and
Sons to Work Foundation.
     Carolyn McKecuen is president of the foundation. She says a total of about
thirty-three million children and adults are involved in the program. About one-third
of the adults work at large companies or nonprofit organizations. Another third are
in small businesses. The rest work in education.
     Carolyn McKeeuen says the numbers from this year's event are not final yet. But
early reports suggest that participation was up at least ten percent from last year. And
she says the foundation is hoping to find support to expand the program internationally.
She says there are lots of requests from other countries for information about how to
set up similar programs.