In the movie Aquamam（海王），there are many big toothy sea creatures（生物）.But it's the city of Atlantis that really draws more people's attention.Atlantis here is an entire underwater kingdom.Whales swim through disk-shaped buildings.It's enough to make anyone wish for life under the sea.But while that underwater life looks peaceful，it comes with a lot of pressure（壓力）.
Above water，you—and everything on the planet—are under a bit of pressure.But you don't notice it because your body is used to this pressure.Climb to the top of a mountain and there will be less air above you.That means there is less pressure.But dive into the ocean，you'll quickly discover what real pressure is.
Water is heavier than air.The deeper you swim below the surface，the more strongly you feel water pressure.Every 10 meters（or about 33 feet ）of depth adds another 6.6 kilograms per square centimeter of pressure."If you took an empty plastic water bottle and went down 75 feet，it would be pressed to change its shape，"notes George Elvin.He works at North Carolina State University in Raleigh.
People are a bit stronger than empty plastic water bottles，of course.But they can be hurt."The deepest human dive（潛水）unprotected by anything is about 1，000 feet，"Elvin says.At this depth，the body is experiencing 100 times the amount of pressure it experiences above the surface.At a deeper depth，Elvin explains，there's so much pressure that many parts of your body—such as your lungs—would simply fail to work.If your lungs don't work，you can't breathe.
Most people live on the dry ground，but there are a few who live underwater for short periods，where the pressure is not too high.Even then，though，they require time to get used to water pressure，notes Roger Garcia，director of the Aquarius Reef Base.It's an underwater living place where scientists can live for a few days when they study the ocean.The inside of this place is filled with air kept at the same pressure as the water outside.At that depth，Garcia says，it doesn't really feel like the water is pressing in on all sides，and he's got plenty of experience with it.There's only one thing he notices."The gas is denser（密度大的）than that at sea level，"he notes，"so most of the time your voice is a little bit deeper."Returning to the surface，however，isn't ejye.aiy.As someone swims to the surface，water pressure drops.This can form bubbles in the body.If those bubbles form in the blood or brain，they can cause pain in your body.
（1）What can we know about Atlantis shown in the movie Aquamam according to paragraph 1？ DD
A．It is just partly under the water.
B．It's built by big toothy sea creatures.
C．It attracts people more than the sea creatures.
D．It's in danger because of high water pressure.
（2）What should you do if you make an unprotected dive？ DD
A．Dive at most 75 feet for safety.
B．Swim quickly and breathe deeply.
C．Take a plastic bottle to reduce water pressure.
D．Avoid going anywhere deeper than about 1，000 feet.
（3）Why is people's voice a little bit deeper at the Aquarius Reef Base？ BB
A．Water pressure is too high in it.
B．Denser air there changes sound a bit.
C．Bubbles in the deep water deepen voice.
D．There isn't so much gas in the deep water.
（4）Which of the following can be the best title for the text？ CC
A．Atlantis in the movie Aquaman.
B．Pressure we can feel under the sea.
C．Dangers of living undersea for long.
D．Ways to deal with high water pressure.
【答案】D；D；B；C
【解答】
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發(fā)布：2024/5/27 14:0:0組卷：0引用：1難度：0.5
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1．If you see a group of people dancing and singing on the street or in the railway station，you don't need to feel surprised.They are a flash mob（快閃族），which is a group of people who come together suddenly in a public place，do something unusual for a brief period of time，and then quickly break up.They are usually organized with the help of the Internet or other digital communication network.
At a predetermined time，they gather and perform some distractions（消遣）such as waving their hands and exchanging books.Then，they quickly break up before the police can arrive.Using mobile phones the flash mob can change its location if the first one has been replaced for any reason.
Bill Lasik，senior editor of Harper's Magazine，organized the first flash mob in Manhattan in May 2003 and the first successful flash mob came together on June 3，2003--after the first attempt was foiled at Macy's department store.Lasik claimed that the activity was designed to make fun of hipsters（時髦的人），and call attention to the cultural atmosphere.
Flash mob gatherings can sometimes shock people.Such an activity might seem amusing and untrue，but it also might frighten people who are not aware of what is taking place.Undoubtedly，flash mobs can serve as good political tools in any direction.They also have great economic potential，such as using flash mobs to advertise a product.
The flash mob is now becoming more and more popular.People use it to do many things.For example，in 2009，Michael Jackson's fans took part in a flash mob to remember him.Hundreds of his fans gathered singing and dancing Michael's famous song Beat It together.Flash mobs give people from all walks of life an opportunity to come together to create a memory.
（1）The underlined word "foiled" in Paragraph 2 can be replaced by "".
A．forgotten
B．prevented
C．a(chǎn)nnounced
D．confirmed
（2）What can you learn about the flash mob from the passage？
A．The flash mob usually breaks up quickly for lacking enough time.
B．Once the place for the activity is determined，it can't be changed.
C．The flash mob can be made use of in many fields for fun.
D．It gives people the chance to come together to do something unusual.
（3）The main purpose of the passage is to.
A．entertain
B．encourage
C．inform
D．persuade
（4）The writers attitude towards the flash mob is.
A．negative
B．objective
C．favorable
D．doubtful發(fā)布：2024/12/20 8:0:13組卷：17引用：2難度：0.5 -
2．The world is a greener place than it was 20 years ago．Recent NASA satellites data（2000-2017）have shown that human activities in China and India dominate this greening of the planet，thanks to ambitious tree-planting programmes in China and intensive agriculture in both countries．
The researchers from Boston University found that global green leaf area has increased by 5 percent in the new century，an area equal to all of the Amazon rainforest．China alone accounts for 25% of the global net increase in leaf area with only 6.6% of global vegetated area．China's contribution comes in large part from its programmes to conserve and expand forests，taking up about 42 percent of the greening．The greening from farmlands in China is about 32%，but that in India is about 82%．
Rama Nemani，a research scientist at NASA's Ames Research Centre and a co-author of the study said， "When the greening of the Earth was first observed，we thought it was due to a warmer，wetter climate and fertilization from the added carbon dioxide in the atmosphere．But with data from NASA satellites，scientists realized that humans are also contributing，which was all against our expectations．"
Nemani sees a positive message in the new findings． "Once people realize there is a problem，they tend to fix it，" he said． "In the 1970s and 1980s in India and China，the situation around vegetation loss was not good．In the 1990s，people realized it，and today things have improved．Humans are incredibly resilient．That is what we see in the satellite data．"
However，the researchers rang bells as well．They said that the gain in global greenness did not necessarily make up for the loss of natural vegetation in regions like Brazil and Indonesia．
（1）What is the second paragraph mainly about？
A．The decreasing size of the Amazon rainforest．
B．China's bigger contribution to global greening．
C．Total global green leaf area in the new century．
D．China's programmes to conserve and expand forests．
（2）What surprised scientists regarding global greening？
A．Human activities．
B．Suitable for analyzing data．
C．A warmer and wetter climate．
D．Carbon dioxide in the atmosphere．
（3）What does the underlined word "resilient" probably mean？
A．Good at making programmes．
B．Suitable for analyzing data．
C．Able to make corrections．
D．Active in planting trees．
（4）What does the last paragraph imply？
A．It is urgent to protect global natural resources．
B．Much remains to be done for global greenness．
C．Brazil and Indonesia lose most of their vegetation．
D．Global greenness needs all countries to work together．發(fā)布：2024/12/20 5:0:3組卷：7引用：1難度：0.6 -
3．Our dog Sandy is a golden retriever（尋回犬）.Once we performed an experiment to see how keen his nose was.There was one particular pile that must have had hundreds of sticks.We picked up one stick carved an X on it，walked away from the pile and then threw it back into the pile，not once but a dozen times into the pile.It was impossible for us to tell with any certainty which slick we had originally chosen.Each time he brought back that stick，It wasn't the shape or the size or the look of the stick that he used to pick it out from all the others.It was the smell we left on the stick.It is hard to imagine，hut for dogs every living creature has its own distinctive smell.
The noses of people have about 5 million cells that sense smell.Dogs' noses have anywhere from 125 to 300 million cells.Moreover，these cells are closer to the surface than cells in our noses，and more active.It has been estimated that dogs such as Sandy have noses that are a million times more sensitive than ours.Clothes that we haven't worn for weeks，and places we've only touched lightly indicate our presence to dogs.
His ears are also remarkable.He can hear sounds that humans can't and at distances which are astonishing.It is over our head to know and understand that world.Yet we have the advantage of being able to imagine what his experience is like，though he probably doesn't think too much about how we see the world.
The environment is the world that all living things share.Living creatures are born into the environment and are part of it.Yet there is no creature who perceives（感知到）all of what is and what happens.For a dog like Sandy a book isn't much different than a stick，whereas for us one stick is pretty much like every other stick.There is no one world experienced by all living creatures.
（1）Why did the author conduct the experiment？
A．To train Sandy to pick out sticks.
B．To show how fast Sandy found sticks.
C．To prove sensitivity of Sandy's nose.
D．To teach Sandy to tell different smells.
（2）What does the author intend to do in paragraph 2？
A．Support the conclusion with numbers.
B．Summarize the previous paragraph.
C．Provide some advice for the readers.
D．Introduce a new topic for discussion.
（3）What does the underlined idiom in paragraph 3 mean？
A．Amazing.
B．Difficult.
C．Reasonable.
D．Inconvenient.
（4）Which of the following best expresses the authors opinion in the last paragraph？
A．Worlds to experience.
B．An environment to share.
C．No environment，no creatures.
D．One environment，many worlds.發(fā)布：2024/12/18 14:30:1組卷：5引用：2難度：0.5
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