题目
题型:不详难度:来源:
A new report says virus may be at least partly responsible for the disorder in honey bee colonies in the United States. This virus is called Israeli Acute Paralysis Virus. It was first identified in Israel in 2004. Ian Lipkin at Columbia University in New York and a team reported the new findings in Science magazine. Doctor Lipkin says the virus may not be the only cause. He says it may work with other causes to produce the collapse disorder.
The team found the virus in colonies with the help of a map of honey bee genes that was published last year. They examined thirty colonies affected by the disorder. They found evidence of the virus in twenty – five of them, and in one healthy colony. The next step is further testing of healthy hives.
The researchers suggested that the United States may have imported the disorder in bees from Australia. They say the bees may carry the virus but not be affected.
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite. This insect attacks honey bees, which could make the disorder more likely to affect a hive. Australian bee producers reject these suspicions.
And some researchers suspect that bee production in the United States is down mainly because of the weather. Honey bees gather nectar(花蜜) from flowers and trees. The sweet liquid gives them food and material to make honey. But cold weather this spring in the Midwest reduced the flow of nectar in many flowers. Many bees may have starved. Dry weather in areas of the country could also be playing a part.
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time. He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.
小题1: What is the author’s attitude to the causes of the bee disorder?
A.critical | B.neutral |
C.supportive | D.negative |
A.American beekeeping industry has been strongly influenced by the bee disorder. |
B.Studies are being carried out on the causes of the bee disorder, but questions remain. |
C.How the causes of the bee disorder in U.S have been found. |
D.The bee production in U.S is down. |
A.Three | B.Four | C.Five | D.Six |
A.Israeli acute paralysis virus should be responsible for the disorder. |
B.The solution to the disorder will be found eventually. |
C.American bees are more likely to defend themselves against hurt from other insects than Australian ones. |
D.Many crop and plant production in U.S may be influenced by the bee disorder. |
答案
解析
核心考点
试题【American beekeeping operations have been hit hard by what scientists call Colony】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
The next morning he said to the men, “Have you provided me with that sunset?”
“No, Sir,” the men answered.
The director was angry. “Why not?” he asked.
“Well,” one of the men answered, “we are on the east coast here, and the sun sets in the west. We can get you a sunrise over the sea, if necessary, but not a sunset.”
“But I want a sunset!” the director shouted. “Go to the airport, take the next flight to the west coast, and get one.”
But then a young secretary had an idea. “Why don’t you photograph a sunrise,” she suggested, “and then play it backwards, Then it’ll look like a sunset.” “That’s a very good idea!” the director said. Then he turned to the camera team and said, “Tomorrow morning I want you to get me a beautiful sunrise over the sea.”
The camera team went out early the next morning and filmed a bright sunrise over the beach in the middle of a beautiful bay. Then at nine o’clock they took it to the director. “Here it is, Sir,” they said, and give it to him. He was very pleased.
They all went into the studio. “All right,” the director explained, “now our hero and heroine are going to say goodbye. Run the film backwards so that we can see the sunset behind them.”
The “sunset” began, but after a quarter of a minute, the director suddenly put his face in his hands and shouted to the camera team to stop. The birds in the film were flying backwards away from the beach.
小题1:One evening, the director sent his camera team out ______.
A.to watch a beautiful sunset. |
B.to find an actor and an actress. |
C.to film a scene on the sea. |
D.to meet the audience. |
A.Because he changed his mind about getting a sunset |
B.Because he was angry about his team |
C.Because it was his secretary’s suggestion |
D.Because he wanted to get a scene of sunset |
A.The team followed the secretary’s advice. |
B.If you want to see a sunrise, the east coast is a place to go to. |
C.The camera team wasn’t able to film the scene the first day. |
D.The director ordered his team to stop filming the “sunset” |
A.it went well with the separation of the hero and heroine |
B.when they arrived at the beach it was already in the evening |
C.it was more moving than a sunrise |
D.the ocean looked more than a sunrise |
A.because he was moved to tears |
B.as he saw everything in the film moving backwards |
C.as the sunrise did not look as beautiful as he had imagined |
D.because he was disappointed with the performance of the hero and the heroine |
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小题1:This advertisement is designed especially for those who____________.
A.like eating in restaurants | B.have little time |
C.prefer home-cooked meals | D.want to save money |
A.Different kinds. | B.High quality. | C.Exact prices. | D.Good taste |
A.Pasta Salad | B.Dried Fruit. | C.Noodles. | D.Nuts. |
A.full of freedom | B.comfortable | C.full of activities | D.flexible |
阅读下面短文,掌握其大意,然后从下列各题所给的四个选项中,选出最佳选项。
Perhaps you’ve attended some parties. But like New York,where a party or dinner often __36__ business with pleasure, a Washington party is a __37__ part of the business of politics, the business of making __38__ connections.
Some Washington parties have a __39__ aura (气氛) about them, depending on who gives them and who is there, but most parties are open-house __40__ in fact, with the hosts not knowing most of the __41__ who are there.
I went to a few of these parties __42__ I wanted to see the inside of some of the Washington mansions (公馆) I had __43__ so much about. Almost every time during the evening some man would come close to talk with me __44__, we didn’t know each other at all. Such a __45__ exchange clearly proves “a gathering of friends” __46__ Washington party standards. You don’t even need an __47__ to attend many Washington parties. You just have to know about them. No Washington hostess would __48__ her servants to ask you who you were. Most of the bigger parties, those with 300 or 400 guests, __49__ to impress somebody, and Washingtonians __50__.
Most members of the Congress ,for example, __51__ middle-class backgrounds in smaller communities __52__ the country. They are dazzled (眼花缭乱的) by __53__. They are dazzled by big names. They are ready to help Washington __54__ hostesses. They go along with them because they are good friends or they don’t notice that they __55__ or they don’t care if they are.
小题1:.
A.follows | B.connects | C.mixes | D.goes |
A.daily | B.necessary | C.chief | D.cheap |
A.still | B.cruel | C.mental | D.important |
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Best time to visit is during the off-season, from early May to mid-June, or in October. This way you can avoid sharing the high way with mobile homes which can be pulled by cars. But whatever the season, take some lunch with you from Banff, because there are only a few food stops on the road.
Forty minutes north of Banff, side by side with the Banff National Park, sits world-famous Lake Louise. This surprisingly small body of water is attractive with towering mountains around it. Glaciers, huge masses of ice, moving very slowly against rocks, produce what is called glacier rock flour, making its water dark to see. It is worth taking a walk around the grounds of the Chateau Lake Louise, another beauty, proud of its early 20th century history.
Back on the road, and it’s time to continue north past the astonishing Columbia Icefield, then turn off the highway and take the short road to the base of the Athabaska Glacier. You can rent ice cleats (夹板) and do some climbing or do a more pleasant snowmobile tour. Either way, you can enjoy endless beautiful sights.
Finally you’ll reach Jasper, the usual turning around the place for the Banff-Jasper loop (回路). It’s worth riding the Jasper Skytram, and be sure to visit the wonderful Jasper Park Lodge, also dating back to the 1920s. If you can have lunch there, do it. The restaurant has an adventurous menu and their wine list would put a smile on any visitor’s face.
小题1:According to the passage, The Pines is a ________.
A.place in which you can see many mobile homes |
B.mountain where you can get a good view of the valley |
C.town which happens to be near the Banff National park |
D.restaurant where you can ask for some special kinds of food |
A.They may have trouble finding a restaurant. |
B.They may come across traffic jams. |
C.They may travel more easily with cars. |
D.They may do much more sightseeing. |
A.the Banff National Park is to the west of Banff |
B.the Columbia Icefield lies between Lake Louise and the Banff National Park |
C.the Jasper Skytram has a history of more than 80 years |
D.the Jasper Park Lodge was built in the 1920s |
A. taking the Jasper Skytram and eating in the restaurant
B. taking the Banff-Jasper loop and Jasper Skytram
Beyond the value of the journal as record, there is the value of the discipline it teaches. The journalist begins to pay closer attention to what happened to and around himself. He develops and sharpens his skills of observation. He learns the usefulness of languages as a means of representing what he sees, and gains skill and certainty in the expression of his experiences. To have given up one’s experience to words is to have begun marking out the limits and potential of its meaning. In the journal that meaning is developed and clarified (澄清、阐明) to oneself. When the intention of the development of that meaning is the consideration of another reader, the method of the journal redirects itself and it becomes the essay.
小题1:According to the author, keeping a journal is good for ________.
A.observation and expression |
B.certainty and discipline |
C.experience and adventure |
D.consideration and development |
A.develop the usefulness of language |
B.develop his memory |
C.clarify the consideration to everyone |
D.have a thorough understanding of his experience |
A.The journalist can express what has happened. |
B.A journal can serve as a record of the past happening. |
C.The journalist must be able to observe closely. |
D.Writing helps develop the consideration of others. |
A.how to write a journal |
B.the expressions of a journal |
C.the values of keeping a journal |
D.how to solve the problems in a journal |
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