Scientists from the United States say they have found fish and other creatures living under key waters in Antarctica. They made the announcement after completing three months of research at the Ross Ice Shelf, the world's largest floating ice sheet. The researchers hoped to find clues to explain the force of the melting ice and its effect on sea level rise. Reed Scherer and Ross Powell are with Northern Illinois University in DeKalb, Illinois. They just finished up their research on our southernmost continent. Money for the project came from America's National Science Foundation. "We chose a study site where, in the first year ,We went into the subglacial lake and tried to understand the environment in there, both ecologically and in terms of the ice dynamics about how the lake operates ,and how the sediment underneath the ice sheet operates, as well, because it's the water and the sediment underneath the ice that controls how fast the ice is flowing into the ocean" says Ross Powell, who led the investigation. The team included scientists ,engineers, machinery and other supplies across the ice from the main U.S. scientific base at Mc Murdo Station to the researcher's camp .The camp was near a subglacial lake ,where an earlier study took place, Ross Powell says the latest study may provide evidence that can help predict the effect of climate change on rising sea levels. "What we have found is that these are very sensitive areas to the stability of how dynamic the ice is and how fast the ice may react to increases of melting both from the ocean and the atmosphere." Among the new instruments built for the project was a powerful hot water drill. The researchers used the drill to dig down some 740 meters. They collected water ,sediment and other material from the grounding zone. Working around the clock before the deep hole refroze, they sent a video camera down to the 400-square-meter undersea area. Reed Scherer says the video images they saw in the Command Center were a total surprise. "It's a very mobile... What can be inferred from the passage? A) Scientists will conduct a follow-up study on the frozen continent. B) No creatures once appeared or lived in icy water in Antarctica. C) America's National Science Foundation is in complete charge of the research. D) Researchers have found how the sediment underneath the ice sheet operates.
A
(Question)
Not everyone can afford their own vehicle,and with the high demands of consumers and incredible expectations of today g leading engineers,public transportation needs all the improvement it can get. Nowadays,there aren't many comfortable alternatives to owning your own car,unless you're happy with inaccessible and expensive rental Pars.To fight against this.the City Car appeared and it's stackable electric car with room for two.Saving the burden of paying for gas and spending times searching for parking in a crowded city, the City Car would be an ideal and inexpensive form of transportation with easy storage. But for those of you that want to stick to trains on tracks,China's 3 D Express Coach is the answer.Unlike trains that must run far from shopping areas or even stay underground because there's simply no room for tracks,the Express Coach runs on rails positioned above the freeway.With more Express Coaches, public transportation would be more time-efficient and energy-efficient. Have you heard of the Nano car? The Tata Nano from India is ten percent of the cost of most new cars.Because of its current lack of an airbag and difficult access to the trunk,the Nano does not meet certain safety standards in other countries but after improvements are made,you may be able to buy a new car for less than$3.000 and enjoys its fit in a motorcycle parking space. The pioneer of hybrid cars,the Toyota Prius,is the shining model of the alternatively fueled vehicle.Due to the Prius' great success,the Lexus RX 450h,Honda Insight and Ford Fusion Hybrid quickly followed.A hybrid car alternates gas and electric power,but contains a complete electric motor.When you drive a hybrid,it's mostly run electrically,but some gasoline powers the generator . Cars like these are no longer imaginary.They are being planned and built,making them not just a fantasy anymore. We can't see trains near shopping areas because _ . A) there's no room for the tracks B) they often run underground C) their rails are positioned above the freeway D) shopping areas are always Ideated underground
(Answer)
A
Ques: In the United States, friendships can be close, constant, intense, generous, and real, yet fade away in a short time if things change. Neither side feels hurt by this. Both may exchange Christmas greeting for a year or two, perhaps a few letters for a while--then no more. If the same two people meet again by chance, even years later, they pick up the friendship where it's left off and are delighted. In the States, you can feel free to visit people's homes and share their holidays without fear that you are taking on a lasting obligation. Do not hesitate to accept hospitality because you cannot give it in return. No one will expect you to do so for they know you are far from home. Americans will enjoy welcoming you and be pleased if you accept their hospitality easily. Once you arrive there, the welcome will be full and warm and real. Most visitors find themselves easily invited into many homes there. In some countries it is considered inhospitable to entertain at home, offering what is felt as "merely" home cooked food, not "doing something" for your guest. It is felt that restaurant entertaining shows more respect and welcome. Or for various other reasons, such as crowded space, language difficulties, or family custom, outsiders are not invited into homes. In the United States, both methods are used, but it is often considered more friendly to invite a person to one's home than to go to a public place, except in pure business relationships. So, if your host or hostess brings you home, do not feel that you are being shown inferior treatment. . A) different languages B) naughty children C) different customs D) small houses
Ans: B
Ques:When I was 16 years old, I made my first visit to the United States. It wasn't the first time I had been abroad. Like most English children, I learnt French at school and I had often been to France, so I was used to speaking a foreign language to people who didn't understand English. But when I went to America I was really looking forward to having a nice easy holiday without any language problems. How wrong I was! The misunderstanding began at the airport. I was looking for a public telephone to give my American friend Danny a ring and tell her that I had arrived. A friendly old man saw me looking like being lost and asked if he could help me. "Yes,"I said."I want to give my friend a ring." "Well, that's nice,"he exclaimed ."Are you getting married? But aren't you a bit young?" "Who is talking about marriage?" I replied. "I just want to give my friend a ring to tell her I've arrived. Can you tell me where there's a phone box?" "Oh!"he said."There's a phone downstairs." When at last we did meet up, Danny explained the misunderstanding to me."Don't worry," she said to me."I had many difficulties at first. There are lots of words which the Americans use differently in meaning from us British. You'll soon get used to all the funny things they say. But most of the time British and American people can understand each other!" Where was the writer from? _ . A) America B) France C) England D) China

Ans:
C