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A new report says sea ice in the Arctic Ocean is melting more quickly than expected. American scientists say the ice is melting even faster than computer programs had estimated.
Scientists know that climate change has a major effect on the Arctic Ocean partly because sea ice is disappearing. They also know that areas of open seawater are expanding. Such areas are known to take in sunlight and increase temperatures. Scientists say this has helped to cause the loss of the Arctic’s ice cover.
For the study, the American scientists compared eighteen computer programs with observations made by satellites and other instruments. The Intergovernmental Panel on Climate Change used the computer programs to prepare its 2007 estimates of climate change.
The computer programs gave estimates of the amount of ice in the Arctic Ocean in the month of September. September is when the Arctic has the least ice, after the warm, summer months. The computer estimates suggested an ice loss of two and a half percent for every ten-year period between 1953 and 2006.  
Newer studies of the Arctic have used information gathered by aircraft, satellites and ships. This information showed a loss of September ice cover of almost eight percent for every ten-year period between 1953 and last year. This means the ice is disappearing about thirty years faster than the computer programs estimated.
The scientists say the programs might not have recognized the full effect of increased carbon dioxide and other gases in Earth’s atmosphere. They say their study suggests the gases may have more of an effect than had been thought.
小题1:It is reported that sea ice in the Arctic Ocean is melting more quickly than expected mainly because _________.
A.climate changeB.sea ice’s disappearance
C.seawater’s expansionD.the loss of the Arctic’s ice cover
小题2: How did the scientists draw the conclusion that sea ice in the Arctic Ocean is melting more quickly than expected?
A.The scientists have been observing the Arctic Ocean for many years.
B.The scientists have compared the computer programs with observation made by satellites and other instruments.
C.The scientists have figured out many numbers with the help of computer.
D.The scientists have found that the seawater take in sunlight and increase temperatures.
小题3:If the ice melts at the present speed, by the end of this century the ice loss in the Arctic Ocean will be _________ according to newer studies.
A.22.5%B.35%C.72%D.100%
小题4:Which of the following is TRUE according to the passage?
A.The figures of the computer estimates are wrong.
B.Scientists study climate change through studying sea level.
C.Newer studies show gases may have more effect on sea ice in the Arctic Ocean.
D.The ice is melting even faster than satellites have estimated.
小题5:This report mainly warns human to _________.
A.prevent the sea ice in the Arctic Ocean from melting any more
B.pay more attention to the loss of the Arctic’s ice cover
C.take necessary steps to protect the environment of our earth
D.stop summer sea ice in the Arctic from disappearing so fast

答案

小题1:A
小题2:B
小题3:D
小题4:C
小题5:C
解析

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试题【A new report says sea ice in the Arctic Ocean is melting more quickly than expec】;主要考察你对题材分类等知识点的理解。[详细]
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Dogs can be worried and pessimistic just like people, researchers report in a new study in Current Biology. And they aren’t talking about basset hounds (短脚猎狗): those dogs just look as if they expect the worst.
What the scientists say is that dogs that exhibit anxiety when left home alone by their owners may have bigger problems — they may be in a permanent bad mood.
This pessimistic outlook may not otherwise be easily apparent in a dog’s other characteristics, like running speed or learning ability, the study reports.
Dogs are similar to humans in the role that emotional state plays in decision making, said Michael Mendel, a veterinary scientist at the University of Bristol and the study’s lead author. The study’s researchers looked at 24 dogs in shelters in Britain.
They placed the dogs in isolated settings and observed their reactions — many barked, jumped on furniture and scratched at the door.
Then they placed bowls in two rooms. One bowl contained food, while another was empty. After training the dogs to understand that bowls can sometimes be empty, and sometimes full, they began to place bowls in ambiguous locations.
Dogs that quickly raced to the locations were more optimistic, and in search of food. Those that did not were deemed pessimistic.
The more separation anxiety a dog expressed while in isolation, the more likely the dog was to have a pessimistic reaction, the researchers found.
The study carries an important message for dog owners, Dr. Mendel said.
Dogs that express serious anxiety when alone may need treatment, as it could be a sign of unhappiness and instability.
小题1:This passage can be classified as _________.
A.an advertisementB.a feature story
C.a news reportD.a book review
小题2: In the study, many dogs barked, jumped and scratched because __________.
A.they couldn’t find the bowl with food in it
B.they were left alone
C.they needed to be treated
D.they wanted to be active and optimistic
小题3:According to Dr. Mendel, which statement is true?
A.Like humans, dogs are good at decision making.
B.Dog owners should train dogs to find food.
C.Emotional state works sometimes when humans make decision.
D.Dogs can always find the bowl with food quickly.
小题4:What can we learn from the passage?
A.Dogs will be optimistic as long as they are left alone.
B.Dogs must be in a permanent bad mood when their owners left.
C.Dogs that express anxiety don’t need treatment.
D.Dogs may easily show their pessimistic outlook in learning ability.

题型:不详难度:| 查看答案
MIANYANG—At a corner of the city’s Jiuzhou Stadium, one of the biggest camps set up for those left homeless in the earthquake, 62-year-old Liu Yaorong was leaning against a window on Thursday.
Pointing to a quilt and clothes he received from the local government, he said: “These are all I have. My home collapsed in the quake, and everything in the town was flooded.”
He used to live in Xuanping town of Beichuan county which was destroyed by the quake. Adding to his misery, rivers blocked by landslides(山崩) led to flooding in the town.
But Liu said he was lucky because he was healthy, otherwise he would not have the energy to walk 10 hours on damaged and dangerous mountainous roads to escape the flood on Monday. He said the trip used to take him about 90 minutes when the roads were in good condition.
The journey was difficult and “rocks kept falling,” he said, showing injured legs and black, split toenails.
Liu said his three sons were working in eastern cities as migrant workers.
“I’ve been living alone in the mountains for more than 20 years. My wife died 30 years ago,” he said in a low voice.
During his journey to Mianyang, Liu said he saw many elderly people who chose to stay.
“Soldiers were persuading them to leave for fear of floods,” he said.
Talking about his home before the quake struck, Liu’s mood lifted. “I raised pigs and chickens, and grew vegetables. I could have rice, meat and greens almost every day,” he said.
“But now, I have only biscuits and instant noodles.”
Liu said one of his sons returned home from Wenzhou, Zhejiang Province, after the quake, but left because the father refused to go with him.
“I don’t want to leave home. And I know it is difficult for them out there. How could I add to their burden?” he asked, his eyes red.
“I still want to go back to my home. Given a small piece of land, I could live by myself.”
It is learnt that resettlement plans for displaced people have not been finalized.
However, not every elderly person is as strong-willed as Liu.
Psychologists said the elderly need as much comfort as children. Lu Jianguo, a psychologist from Chengdu Medical College, said “We will first let them cry and tell their stories, and then help them regain confidence.”
小题1:Which of the following is TRUE according to the passage?
A.Liu Yaorong spent 8.5 hours more than usual covering the roads in escaping the flood.
B.The flood was followed by an earthquake in Xuanping in the same day.
C.Liu Yaorong was in time to escape the quake without being hurt.
D.Being healthy, Liu Yaorong was the only old man to escape the flood.
小题2:The underlined word “ misery  ”in the third paragraph most probably means “      ”.
A.happinessB.fortuneC.puzzleD.suffering
小题3:What’s Liu Yaorong’s attitude towards self-relief after the earthquake?
A.Positive.B.Negative.C.Aggressive.D.Dependent.
小题4: What would be the best title for the news report?
A.Elderly react more quickly to flood disaster
B.Elderly try hard to deal with quake disaster
C.Elderly prefer to stay at their own home
D.Elderly are well cared for by government

题型:不详难度:| 查看答案
阅读下面短文,从每题所给的四个选项中,选出最佳答案。
This year some twenty-three hundred teenagers(young people aged from13~19)from all over the world will spend about ten months in U.S. homes. They will attend U.S. schools, meet U.S. teenagers, and form impressions of the real America. At the same time, about thirteen hundred American teenagers will go to other countries to learn new languages and gain a new understanding of the rest of the world.
Here is a two-way student exchange in action. Fred, nineteen, spent last year in Germany with George’s family. In turn, George’s son Mike spent a year in Fred’s home in America.
Fred, a lively young man, knew little German when he arrived, but after two months’ study the language began to come to him. School was completely different from what he had expected—much harder. Students rose respectfully when the teacher entered the room. They took fourteen subjects instead of the six that are usual in the United States. There were almost no outside activities.
Family life, too, was different. The father’s word was law, and all activities were around the family rather than the individual. Fred found the food too simple at first. Also, he missed having a car.
“Back home, you pick up some friends in a car and go out and have a good time. In Germany, you walk, but you soon learn to like it.”
At the same time, in America, Mike, a friendly German boy, was also forming his idea. “I suppose I should criticize(批评)American schools,” he said. “It is far too easy by our level. But I have to say that I like it very much. In Germany we do nothing but study. Here we take part in many outside activities. I think that maybe your schools are better in training for citizens. There ought to be some middle ground between the two.”
小题1:This year ________teenagers will take part in the exchange programme between America and other countries.
A.twenty-three hundred
B.thirteen hundred
C.over three thousand
D.less than two thousand
小题2:The whole exchange programme is mainly to__________.
A.help teenagers in other countries know the real America
B.send students in America to travel in Germany
C.let students learn something about other countries
D.have teenagers learn new languages
小题3:Fred and Mike agree that__________.
A.America food tasted better than German food
B.German schools were harder than American schools
C.Americans and Germans were both friendly
D.There were more cars on the streets in America
小题4:What is particular in American schools is that________.
A.there is some middle ground between the two teaching buildings
B.there are a lot of after-school activities
C.students usually take fourteen subjects in all
D.students go outside to enjoy themselves in a car

题型:不详难度:| 查看答案
XI’AN---Seven people died in a fire early on Wednesday morning in Xi’an, capital of Shanxi Province. A restaurant with a karaoke hall in the southern suburbs caught fire around 2 a. m. and seven waitresses who were sleeping on the second floor of the restaurant were killed. The restaurant was completely destroyed and the waitresses, the local police said, were killed by toxic smoke from burning decorations.
MANILA---Four people were killed yesterday in the central Philippine island of Tacloban when a bomb they had dug up exploded, local police were quoted as saying. The four people were digging to set up a septic(poisonous)tank in their house when they dug up the bomb. It went off, killing all four people, local police were quoted by radio station DZBB as saying. The police did not say where the bomb came from. Unexploded bombs from World War II are still discovered around the Philippines once in a while.
TEL AVIV---An Israeli couple kissed for 30 hours and 45 minutes which, a spokeswoman said yesterday, was a world record. The couple, both in their twenties, started kissing on Monday at 8:30 p.m. along with 250 other couples in a contest. “For nearly 31 hours they didn’t eat, drink, talk or even go to the bathroom. And the whole time, they were standing up”, said Arielle Goldman, who handled public relations for the event. She said a representative of the Guinness Book of World Records was on hang to witness the event, recorded on video. The previous record was 29 hour and 37 minutes, Goldman said. The winning couple received two round-the-world plane tickets and $2,500. (277 words)
小题1:Which of the following statements is right?
A.The news report didn’t mention the loss caused by the fire.
B.After reading the report we know how the fire broke out.
C.The reporter tended to think the bomb had something to do with World War II
D.The police refused to admit the bomb had anything to do with World War II.
小题2: The underlined word “toxic” means _____.
A.poisonousB.dangerousC.hotD.thick
小题3: The Israeli couple kissed for nearly 31 hours_____.
A.to test their enduranceB.to set a new world record
C.to show their special loveD.to prove they are very healthy
小题4:Why did so many couples take part in the contest?
A.Because it was a good chance to enjoy themselves.
B.Because they were poor and wanted to gain the 2,500 dollars.
C.Because they wanted to attract people’s attention.
D.Because they aimed at the honor and prize.

题型:不详难度:| 查看答案
Wong Fuk-wing(黄福荣), a Hong Kong volunteer(志愿者)at an orphanage(孤儿院)in Yushu, was killed in the earthquake when he was trying to save others on April 14, 2010.
Wong managed to run safely out of the building with some children when the first quake happened at 7:50 am on April 14, but he went back inside to rescue three other children and three teachers inside, although he knew the danger of aftershocks(余震).
At 10 am, all the children and one of the teachers were saved. However, Wong was buried under the fallen building and died. The other two teachers were still waiting to be rescued.
46-year-old Wong was a truck driver, who often said he could only give his efforts to charity(慈善)instead of money, as he did not earn a lot. His tragic(悲剧的)end touched the hearts of many people both in Hong Kong and on the mainland.
Wong began volunteering in 2002. In 2003, Wong was told by the doctor he got serious illness, which gave him a great blow. However, the illness did not deter the warm-hearted man. When the earthquake struck Wenchuan is Sichuan Province in 2008, Wong rushed to the disaster area of Shifang to offer his help though his family did not want him to go.
In fact, Qinghai is a place Wong had often visited since 2006. As a volunteer, he gave out medicine and clothing to the orphanage there. No one could expect that Wong would die helping others.
Hong Kong Chief Secretary Henry Tang Ying-yen said he had “the highest respect” for the hero who gave his life for others. “What he did has shown the Hong Kong spirit.” The citizens of Hong Kong called him “ the pride of Hong Kong’s people” and people on the mainland have also praised him as “ a true hero”.
小题1:Wong died in the earthquake          .
A.after he sent medicine and clothing to the orphanage
B.when he returned to save the teachers and students
C.because he suffered from his serious illness again
D.as the first earthquake happened
小题2:The underlined word “ deter” in Para. 5 refers to “      ”.
A.preventB.refuseC.beatD.encourage
小题3:What can we know about Wong from the passage?
A.He never visited Qinghai before 2010.
B.He was supported by his family being a volunteer.
C.He was thought highly of by the Chinese.
D.He was a taxi driver before he died.
小题4:Why are so many people deeply moved by the story of Wong?
A.He always offered money to the orphanage.B.He fought against his illness bravely.
C.He helped the orphanage though being poor.D.He put other people’s lives above own.

题型:不详难度:| 查看答案
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