题目
题型：不详难度：来源：
B
As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things.
Pollution in water is not simply a matter of “poisons” killing large numbers of fish overnight, Very often the effects of pollution are not noticed for many months or years because the first organisms（生物体）to be affected are either plants or plankton(浮游生物). But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die too. In this way a whole food chain can be wiped out, and it’s not until dead fish and water birds are seen at the river’s edge or on the seashore that people realize what is happening.
Where do the substances which pollute the water come from? There are two main sources of sewage（下水道污物）and industrial waste. As more detergent（洗涤剂）is used in the home, so more of it is finally put into our rivers, lakes and seas. Detergents harm water birds, dissolving the natural substances which keep their feathers water-proof (防水). Sewage itself, if not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful as there are many highly poisonous things in it, such as copper and lead.
So, if we want to stop this pollution, the answer is simple: sewage and industrial waste must be made clear before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.
70. Pollution of water is noticed________.
A. when the first organisms are affected
B. when a good many fish and birds die
C. when poisonous things are poured into water
D. as soon as the balance of nature is destroyed
71.The living things die because there is no ________in the lake or river.
A. water B. fish C. poison D. oxygen
72. Which of the following is harmful according to the passage?
A. Organisms B. Plants and plankton in the water
C. Waste water from cleaning D. Industrial waste made clear before flowing into the water
73. The way to stop water pollution is to________.
A. realize the serious situation clearly
B. put oxygen into the river
C. make the waste material harmless before flowing into the water
D. make special room in the sea for our rubbish
答案
70---73 BDCC
解析
核心考点
试题【 BAs a result of pollution, Lake Erie, on the borders of the USA and Canada, is 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
D
Can trees talk? Yes --- but not in words. Scientists have reason to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First a willow tree (柳树) attacked in the woods by caterpillars (毛毛虫) changed the chemistry of its leaves and made them tasteless so that the caterpillars got tired of the leaves and stopped eating them. The even more astonishing, the tree sent out a special vapor--- a signal causing its neighbors to change the chemistry of their own leaves and make themselves taste also terrible.
Communication, of course, doesn’t need to be always in words. We can talk to each other by smiling, raising our shoulders and moving our hands. We know that birds and animals use a whole vocabulary of songs, sounds and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar (花蜜) for honey. So shy shouldn’t trees have ways of sending messages?
71.When attacked, a willow tree will protect itself by _______.
A. changing its leaves’ chemistry B. changing its leaves’ color
C. talking to caterpillars D. sending a special vapor
72. From the passage we know that caterpillars _______.
A. like willow trees B. enjoy eating fallen leaves
C. feed on willow tree leaves D. could communicate with willow trees
73.Caterpillars will stop eating willow tree leaves which _______
A . have a chemical change and become tasteless B. have a pleasant taste
C. are being attacked D. are communicating
74.According to the passage, how do willow trees communicate with each other?
A. They talk in words. B. They send a special vapor.
C. They wave their leaves. D. They make special sounds.
75.According to the passage, bees communicate with each other by _______.
A. talking B. making unusual sounds
C. singing D. flying in certain patterns
第三部分阅读理解（共20小题；每小题2分，满分40分）
A
Experts around Europe are discussing the embarrassing museum safety following the theft of two art masterpiece paintings on Sunday. A large hunt got under way Monday for thieves who walked into a lightly guarded museum in Oslo, Norway, tore two paintings off the wall and ran away.
Some expressed fear that works of art are in increasing danger from violent robbery — unless, said Deputy Culture Minister Yngve Slettholm, "we lock them in a mountain bunker(碉堡)."
Armed, masked robbers stole the Edvard Munch masterpiece "The Scream" and another of Munch"s works, "Madonna," from Oslo"s Munch Museum on Sunday as visitors watched in disbelief.
The purpose behind the robbery also remained unknown. But art experts guessed the thieves were either looking for money or wished to impress other criminals since it would be nearly impossible to sell such famous pieces of art.
This is the second time in a decade that a version of the painting has been stolen. Another version of "The Scream" was stolen from Oslo"s National Gallery in February 2004, but recovered three months later. The Munch works were not insured against theft, because it was impossible to set a price on them, said John Oeyaas, managing director of Oslo Forsikring, the city-owned company that insured the paintings against damage. But he said the theft in broad daylight from one of Norway"s most visited museums raises the question of security — "How can we make these artworks available to the public while still ensuring their safety?"
56. The stolen paintings were drawn by ______.
A. Oslo Forsikring B. Yngve Slettholm C. Edvard Munch D. John Oeyaas
57.Which of the following description is correct about the theft?
A.The two paintings were stolen on Monday
B.Visitors to the museum saw the faces of the robbers
C.The thieves were looking for money
D.The thieves had weapons with them during the theft
58. The Oslo’s Munch Museum ______.
A.is one of the most popular museum in the country
B.had all its paintings insured against theft
C.were going to lock the paintings in a mountain bunker
D.had another version of “The Scream” stolen in 2004
59. What could be the best title for this passage?
A.Dangers of Violent Robbery
B.How to Ensure Safety of Artworks
C.Priceless Art Lost in Bold Theft
D.Famous Art Works Favored by Thieves
E
Everyone has heard of the San Andreas fault (断层), which constantly threatens California and the West Coast with earthquakes. But how many people know about the equally serious New Madrid fault in Missouri?
Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe. Buildings in the area were almost destroyed. Whole forests fell at once, and huge cracks opened in the ground, allowing smell of sulfur （硫磺）to filter upward.
The Mississippi River itself completely changed character, developing sudden rapids and whirlpools. Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Madrid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earthquakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington, D.C.
Scientists now know that America’s two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the movement of these two masses suddenly lurches (倾斜) forward.
The New Madrid fault, on the other hand, is a vertical fault; a some point, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now, the rock continues to settle downwards, and sudden sinking motions trigger (触发) earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern lllinois.
Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but the scientists say have no method of predicting when a large earthquake will occur.
72. This passage is mainly about__________.
A. the New Madrid fault in Missouri
B. the San Andreas and the New Madrid faults
C. the causes of faults
D. current scientific knowledge about faults
73. The New Madrid fault is__________.
A. a horizontal fault
B. a vertical fault
C. a more serious fault than the San Andreas fault
D. responsible for forming the Mississippi River
74. We may conclude from the passage that__________.
A. it is probably as dangerous to live in Missouri as in California
B. the New Madrid fault will eventually develop a mountain range in Missouri
C. California will become an island in future
D. A big earthquake will occur to California soon
75. This passage implies that__________.
A. horizontal faults are more dangerous than vertical faults.
B. Vertical faults are more dangerous than horizontal faults
C. Earthquakes occur only around fault areas
D. California will break into pieces by an eventual earthquake
There were three little boys, Harry, Td and Gavin, who were always __2__. Gavin was the worst. Everything about his family was always __3__ or the biggest or the most expensive. __4__ other others said, he could always go one better.
One day when they were walking to __5__ Harry said, “My father has a bath twice a week.” Ted spoke next. “That’s __6__,” he said. “Having a bath twice a week is __7__. My father has a bath every day, sometimes twice a day.”
Ted looked at Gavin. Now it was his __8__. But what could he say? “This time I’m going to win.” Ted thought.
Gavin didn’t know what to say. He couldn’t say that his father had a bath three times a day. That was __9__. He walked on his silence. Ted smiled at Harry, and Harry smiled back. They were sure that for once they had __10__ Gavin. They reached the school gates. Still Gavin said nothing.
“We’ve won,” Ted said to Harry, but he spoke too soon. Gavin said, “My Dad’s do clean that he doesn’t have to bathe at all.”
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The good teacher works in __6__ different way. His audience takes an active part in his play, they ask and answer question, they __7__ orders, and if they don’t understand something, they say so. The teacher therefore has to suit his act __8__ the need of his audience which is his class.
I have known many teachers who were fine actors in __9__ but were unable to play a part in a stage-play because their brains would not keep discipline; they could not keep strictly to __10__.
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