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Plastics are considered one of the most serious pollutants causing environmental problems. The garbage containing plastics end up in the waterways that eventually flow into the oceans. Accumulation (聚集)of plastic in the ocean endangers marine life and pollutes the water.
Does a plastic continent exist? Yes, a plastic continent does exist and was discovered by Captain Charles Moore a decade ago. The plastic continent is twice the size of Britain and it is the region between the Hawaii Islands and California in the central Pacific Ocean.
One of the causes of the lack of marine life in this region is due to pollution and pollutants are none other than plastics. Captain Charles Moore believes plastic waste started accumulating in the 1950s.
The plastic continent is the man-made continent of floating plastic waste. The fisher men and the sailors have avoided this region for years. The reasons are:
1. There are no fish here because of the lack of nutrients.
2. The zone also lacks the wind that is essential for sailing.
To do research on the ocean pollution, Captain Moore founded Algalita Marine Research Foundation. Other organizations such as Greenpeace supported his cause. The reports of The United Nations Environment Program show that millions of seabirds and marine animals are dying due to the invasion(入侵)of plastics. The waste plastics can be recycled, but in fact they are being thrown into the oceans. The marine animals mistake these for food and eat them. This leads to their death that affects the marine food chain.
To save the oceans from the plastic continent you need to reduce the use of plastics, reuse plastic bags and recycle plastics.
小题1: What can we learn from the first paragraph?
A.A plastic continent does exist in the Pacific Ocean
B.Endangered marine life is well protected.
C.Plastics are one of the main causes of water pollution.
D.Plastics should be forbidden in people’s daily life.
小题2: What is the direct influence of the plastic continent?
A.Local fishermen have to fish in other areas.
B.The water becomes shallow and fish have to move away.
C.The wind is too strong there and it makes sailing more difficult.
D.It makes people realize the importance of protecting the environment.
小题3: It is implied that the work of plastic recycling proves to be ______.
A.effectiveB.expensiveC.a difficult taskD.not good enough
小题4:What can we learn from the passage?
A.Many marine animals are dying due to the broken marine food chain.
B.Captain Moore founded Greenpeace to do research on the ocean pollution.
C.The marine animals have no choice but to eat plastics for lack of food.
D.There are three ways to prevent the oceans from becoming a plastic continent.

答案

小题1: C           
小题1:A
小题1:D
小题1:D
解析

核心考点
试题【Plastics are considered one of the most serious pollutants causing environmental】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Motorists who used to listen to the radio or their favorite tunes on CDs may have a new way to entertain themselves, after engineers in Japan developed a musical road surface.
A team from the Hokkaido Industrial Research Institute has built a number of“melody roads,”which use cars as tuning forks to play music as they travel.
The concept works by using grooves(凹槽).They are cut at very specific intervals in the road surface. The melody road uses the spaces between to create different notes.
Depending on how far apart the grooves are, a car moving over them will produce a series of high or low notes, and designers are able to create a distinct tune.
Paten documents for the design describe it as notches “formed in a road surface so as to play a melody without producing simple sound or rhythm and reproduce melody-like tones”.
There are three musical strips in central and northern Japan—one of which plays the tune of a Japanese pop song. Reports say the system was invented by Shizuo Shinoda. He scraped some markings into a road with a bulldozer before driving over them and found that they helped to produce all kinds of tones.
The optimal speed for melody road is 44kph,but people say it is not always easy to get the intended sound.
“You need to keep the car windows closed to hear well,”wrote one Japanese blogger.“Driving too fast will sound like playing fast forward, while driving around 12mph[20km/h]has a slow-motion effect, making you almost car-sick.”
小题1:According to the passage, melody roads use        to create different notes.
A.carsB.groovesC.spaces between intervalsD.bulldozers
小题2:We can learn from the passage that the highness of notes is depended on        .
A.how far the grooves areB.how big the grooves are
C.the number of the groovesD.the speed of the car
小题3:The underlined word “optimal” in the passage might mean        .
A.fastestB.possibleC.bestD.suitable
小题4:In order to hear the music well, you have to        .
A.drive very fastB.drive slowly
C.open the windows wideD.keep the windows closed
小题5:What’s the best title of the passage?
A.A New Type of MusicB.Melody Roads in Japan
C.A Musical Road SurfaceD.A New Invention in J

题型:不详难度:| 查看答案
In the future your automobile(汽车) will run on water instead of gas! You will be able to buy a supercomputer that fits in your pocket! You might even drive a flying car!
For each prediction that has come true today, several others have missed by a mile. Many of these predictions didn’t consider how people would want to use the technology, or if people really needed it in their lives or not. Let’s look at some predictions from the not-too-distant past.
Robot Helpers
Where’s the robot in my kitchen? Nowhere, of course. And he’s probably not coming anytime soon. Robots do exist today, but mostly in factories and other manufacturing environments.
Back in the 1950s, however, people said that by now personal robots would be in most people’s homes.
So why hasn’t it happened?  Probably because robots are still too expensive and clumsy. And maybe the idea of robots cooking our dinners and washing our clothes is just too weird. At home we seem to be doing fine without them.
Telephones of Tomorrow
In 1964 an American company introduced the video telephone. They said by the year 2000 most people would have a video phone in their homes. But of course the idea hasn’t caught on yet.
Why? The technology worked fine, but it over—looked something obvious: people’s desire for privacy(隐私). Would you want to have a video phone conversation with someone after you just step out of the shower(淋浴)?  Probably not---it could be embarrassing! Just because a technology available doesn’t always mean people will want to use it.
And finally, how about that crazy prediction of the flying car? It’s not so crazy anymore! But a flying car remains one of the most fascinating technology ideas to capture our imagination. Keep watching the news, or perhaps the sky outside your window, to see what the future will bring.
小题1:
The whole passage is mainly about ________________.
A.predictions that have come true.B.predictions that haven’t come true.
C.why predictions don’t come true easily.D.what technology will bring about.
小题2:
The author of this passage won’t believe that _________________.
A.predictions needn’t consider people’s practical use of technology.
B.the future isn’t always easy to guess.
C.not all past predictions have come true.
D.many of the high—tech things our parents thought we’d be using by now
simply never appeared.
小题3:
The underlined word “weird” probably means __________.
A.wonderfulB.stupidC.practicalD.strange
小题4:
What does the author think of the flying car?
A.It is too difficult to imagine.B.It is too crazy an idea.
C.It is likely to be made.D.It is often reported in the news.

题型:不详难度:| 查看答案
Construction workers in Southern California have made a wild discovery. They were digging at a building site in San Timoteo Canyon (峡谷) when they unearthed hundreds of ancient animal fossils. Researchers say the bones hold important clues about the history of the region.
Nearly 1, 500 fossils were recovered from the dusty canyon. The remains are about 1.4 million years old. They include the bones of a new species of deer, several small rodents (啮齿目动物) and more. A giant cat fossil was also found. Scientists believe the animal was an ancestor of the saber- toothed tiger. Signs of plant life were uncovered as well.
“This is a huge find,” says Rick Greenwood, a scientist studying the site. “I don’t think most people had any idea that those types of animals were wandering around here more than a million years ago.”
San Timoteo Canyon is located about 85 miles from Los Angeles. The area of the canyon where the fossils were found was once part of a green river valley. Today, the region is dry and plant life is rare.
Most of the fossils are well preserved. Experts say a muddy lake bed may have trapped thirty animals that wandered over for a drink. The mud helped to protect the animal fossils.
The remains are a million years older than those discovered at the famous La Brea Tar Pits in Los Angeles. Scientists studying the bones will be able to learn more about how the animals adapted to changes in the environment.
“We have a confused view of what this time period was like, ” says another scientist. “A discovery like this could really be an important contribution.”
About 35 different animal species are represented in the fossil collection. Scientists began removing bones from the site last fall. The project was completed this summer. Starting next year, the fossils will be on display at the Western Science Center in the nearby city of Hemet, California.
小题1:
What does the passage mainly focus on?
A.The secret of ancient animals’ deaths.
B.The preparation for a future fossil exhibition.
C.A great discovery of fossils.
D.The history of San Timoteo Canyon.
小题2:
From what Rick says, we know ________. (原创)
A.fossils were discovered in the canyon for the first time.
B.the canyon in ancient times was quite different.
C.more research work will be carried on in the canyon.
D.the river water helped to protect the animal fossils.
小题3:
Compared to the discovery at the La Brea Tar Pits, the canyon-involved fossils _______.
A.are far olderB.include more species
C.are better preservedD.make experts more confused
小题4:
What do we know about the fossils from the passage?
A.All of them are of new species.
B.Some of them have been destroyed
C.They were looked for under experts’ guidance.
D.They will be on show in the near future.

题型:不详难度:| 查看答案
You know that pearls grow inside oysters(牡蛎), but would you ever think to look for diamonds inside an ostrich(鸵鸟)? Well, a hunter once shot an ostrich and discovered, to his great surprise, that the big bird had swallowed a bunch of diamonds. How could such a strange thing happen?
Like many other birds, the ostrich swallows small stones that stay inside its “gizzard”. The gizzard is a bird’s second stomach. It is where the food is ground up. The small stones help to grind up the food so it can be digested. The small stones do the chewing because birds don’t have teeth. In that case of the ostrich with the diamonds, the bird simply had expensive taste in rocks. It used the diamonds to digest its dinner.
Diamonds and stones aren’t all that an ostrich will swallow. If there are no stones around, it will eat just about anything. Sadly for ostriches in zoos, this can be a fatal habit. The tendency to swallow anything it sees has caused the death of many an ostrich. Cruel or careless people often throw things into the bird’s living space. They throw keys, coins, and even large objects such as horseshoes. The ostrich swallows them without hesitation. Coins can be the worst. Inside the ostrich they wear down to a razor-sharp edge. They will cut open the bird’s gizzard from the inside. When one young zoo ostrich died, 484 coins weighing more than eight pounds were found in its gizzard.
小题1:
Which of the following best expresses the main idea of the passage?
A.Birds often eat strange and funny things.
B.Ostriches will swallow anything to help them digest food.
C.One ostrich died with 484 coins in its gizzard.
D.Ostriches are often hurt by cruel or careless people.
小题2:
The ostrich is not smart enough to ______.
A.digest its own foodB.eat only diamonds
C.avoid eating harmful objectsD.escape from the zoo
小题3:
The sentence “the small stones do the chewing” makes rocks seem as though they were ______.
A.importantB.alive
C.dangerousD.uncomfortable
小题4:
he word “fatal” in the third paragraph is another word for “______”.
A.foolishB.carelessC.deadlyD.cruel

题型:不详难度:| 查看答案
It’s always great to hear news about wildlife returning to where they once lived. For the first time in 8 years the small blue --- British’s smallest butterfly--- has been seen back at a nature reserve in Hertfordshire.
This nature reserve has had a lot of work done recently in order to help butterflies. Management of the land has included bringing in sheep to keep the grass under control in a more natural way and planting wild flowers for butterfly species. The nature reserve is home to a number of butterfly species. In fact the way that this reserve has been managed means that it is probably the best reserve in Hertfordshire to see butterflies with at least 25 species now living in the area.
There are a number of threats to British butterflies and the greatest threat is the loss of their habitat. Changing farming practice has affected British native butterfly species greatly with many more now being at risk. Butterflies are such an excellent species that they can clearly tell the situation of local environment because they are easily influenced by environmental changes, A wide species of butterflies will generally mean a healthy environment.
The type of land management at the nature reserve in Hertfordshire offers a hope for many species of butterfly to live as usual. Butterflies need all the help they can get at the moment. Although the number of butterflies is beginning to increase, many are still at risk.
小题1:What has the nature reserve done to help butterflies return ?
a. changing the reserve place     b. bringing in sheep
c. planting wild flowers         d. changing farming practice
A.a.bB.c,dC.a,dD.b,c
小题2:Why did the butterflies fly away eight years ago?
A.The weather is changingB.The flowers have died out
C.Their habitat has been lost.D.The environment has changed
小题3:What can we infer from the passage?
A.The environment has changed healthier a lot than before.
B.All the butterflies have returned to the reserve.
C.There is no threat to the British butterflies.
D.Over 25 species is living in the reserve now.
小题4:What does the underlined sentence mean?
A.The butterflies changed as the environment changed.
B.Butterflies are very beautiful.
C.Butterflies are sensitive to the environment the live.
D.Butterflies can tell us what is happening.

题型:不详难度:| 查看答案
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