Read the article and select the best answer. Article: What was the origin of the oil which now drives our motorcars and aircraft? Scientists are confident about the formation of coal, but they do not seem so sure when asked about oil. They think that the oil under the surface of the earth originated in the distant past, and was formed from living things in the sea. Countless billions of small sea creatures and plants lived and sank to the seabed. They were covered with huge deposits of mud and by process of chemistry, pressure and temperature were changed through long ages into what we know as oil. For these creatures to become oil, it was necessary that they should be imprisoned between layers of rock for a great length of time. The statement that oil originated in the sea is confirmed by a glance at a map showing the chief oilfields of the world. Very few of them are far distant from the oceans of today. In some places gas' and oil come up to the surface of the sea from its bed. The rocks in which oil is found are of the marine origin too. They are rocks which were laid down by the action of water on the' bed of the ocean. Almost always the remains of shells, and other proofs of sea life are found close to the oil. A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the seabed. And when there is shale, there is likely to be oil. There is a lot of luck in drilling for oil The drill may just miss the oil although it is near; on the other hand, it may strike oil at a fairly high level When the drill goes down, it brings up soil. The soil from various depths are examined for. Traces of oil. If they are disappointed at one place, the drillers go to another. Great sums of money have been spent, for example, in the deserts of Egypt, in looking for oil. Sometimes little is found. When we buy a few gallons of petrol for our cars, we pay not only the cost of the petrol, but also part of the cost of the search that is always going on. There are four main areas of the world where deposits of oil appear. The... Question: Which of the following might be the best title for the passage? Options: A: How to explore and drill for the Oil B: The Oil in Oceans C: The Origin and Distribution of the Oil D: The Elements of the Oil
C

Read the article and select the best answer. Article: Humans: It's time to give up the earth or face extinction . It could be the plot of a summer blockbuster , but this prediction isn't science fiction. It's a glimpse of the future, according to famous British scientist Stephen Hawking. "I see great dangers for the human race," he said in an interview with global forum Big Think. "There have been a number of times in the past when its survival has been a question of touch-and-go." Hawking, an award-winning physicist, says humans must evacuate our home planet within the next two centuries and expand into space to survive. "I believe that the long-term future of the human race must be in space," he said. "It will be difficult enough to avoid disasters on our planet in the next hundred years, let alone the next thousand, or million." Hawking, who was awarded the Presidential Medal of Freedom last year, has recently voiced many concerns about the future of life on the earth. In April, he spoke about his fear of aliens in an interview for the Discovery Channel. "If aliens visited us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said. "Such advanced aliens would perhaps become wanders, looking to conquer and colonize whatever planets they can reach." But Hawking says he is still hopeful for the future of humanity. "I'm an optimist," he told Big Think. "We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space." Getting to another planet will prove a challenge, not to mention colonizing it for humanity. University of Michigan astrophysicist Katherine Freese told Big Think that "the nearest star to the earth is Proxima Centauri which is 4.2 light years away. That means, if you were travelling at the speed of light the whole time, it would take 4.2 years to get there--or about 50,000 years using current rocket science." Question: Hawking's attitude towards the future of humans is _ . Options: A: objective B: positive C: subjective D: negative
B

Q: Read the article and select the best answer. Article: 'As I stood in front of the grave of President Richard Nixon, I was thinking about the time 25 years ago when this president helped bring the United States and China closer together. Young people of our two countries should help this relationship grow.' This remark was made by a Shanghai student when speaking to his fellow students at the Nixon Library in California, U.S.A. He was one of 80 middle school students from China attending a month-long 'Youth Summit'. The Summit was to mark the 25th anniversary of President Nixon's journey to China, which was the turning point in China-U.S. relations. The Youth Summit was aimed at increasing understanding and friendship between young students of the two countries through visits and discussions. Seventy-five American students were selected to visit China. They also visited the Nixon Library on July 21 before leaving for Beijing the next day. The head of the Library said he was pleased to see the American and Chinese students talking and laughing together. One Chinese student said, 'I didn't find it particularly difficult to talk with Americans. We have our differences, but we have a lot in common. Dialogue is good for us.' Question: The words 'Youth Summit' in the text refer to _ . Options: A: visits to the Nixon Library B: the Chinese students' visit to the U.S. C: a meeting discussing relations between China and the U.S. D: activities to make the ties between the Chinese and American students stronger
A: D

Read the article and select the best answer. Article: Welcome to the Ambassador Hotel. To make your stay as enjoyable as possible, we hope you will use our facilities to the full. _ Breakfast is served in the dining mom from 8 to 9:30 a.m.. Alternatively, the room staff will bring a breakfast tray to your room at any time after 7 a.m., if you place an order for it by telephone. In this case, please fill out a card and hang it outside your door when you go to bed. Lunch: 12:00 to 2:30 p.m. Dinner: 7:30 to 9 p.m. Telephone:48752 _ This operates 24 hours a day. Phone the Reception Desk, and your message will be passed on to the room staff. Telephone:48759 _ To make a telephone call, dial 0 for Reception and Laundry , and ask to be connected. We apologize for delays in putting calls through when the staff are very busy. There are also public telephone booths near the Reception Desk. Early calls should be booked with Reception. _ The hotel shop is open for souvenirs , gifts and toiletries from 9 a.m. to 5:30p.m. Telephone:48687 _ We have a laundry on the premises and will wash, iron and return your clothes within 24 hours. Ask the room staff to phone the laundrymen to collect them. Telephone:48867 _ The hotel bar is open from 12 to 2 p.m., and 7 p.m. to 2 a.m.. The Reception staff will cash cheques and exchange money in many foreign currencies . Question: The announcement mainly gives us information about _ . Options: A: facilities in the hotel B: providing passengers all kinds of service C: the ways of serving D: carrying out the promise of the hotel
B