(Question)
Can you speak to dolphins? Of course you can but you won't be able to understand them! We interviewed a biologist and asked her what research on dolphin communication has shown. This is what she told us. Just like dogs, cats and other mammals, dolphins communicate by using sound, vision , touch and taste. Each dolphin has its own signature whistle to identify itself and to call others. Dolphins don't have the ability to smell, but their hearing and eyesight are excellent. We also asked Jane if dolphins have got their own language. She told us that they have and that dolphins started talking to each other from birth. They make different sounds, including whistles, squeaks and click. Sometimes they even sound like a heavy metal band! We then asked Jane if any interesting experiments have been done. She told us that a very interesting experiment had been done with a mother dolphin and her two-year-old baby in an aquarium. They talked to each other over the telephone! The two dolphins were in separate tanks which were connected by a special under water system. Unfortunately the biologists couldn't understand what the dolphins were talking about because they haven't been able to decode dolphin language yet. However, it was very clear that the dolphins knew what they were talking about. Finally we asked Jane if there was hope that we would be able to understand dolphins in the near future. She told us that she and her team have been listening to dolphins for more than 17 years, using special equipment to record and analyze their language. Unfortunately they haven't been able to decode it yet, but who knows -- maybe one day we'll get a phone call from a dolphin. The best title of the reading may most probably be _ . A) An Interesting Experiment B) Mother Dolphin and Baby C) Animal Talk D) Further Research
(Answer)
C

(Question)
The planets aren't the only wanderers of the sky. There're some things even farther and longer. Long after people were no longer afraid of planets, they still thought the comets were bad objects that traveled in the sky. They were afraid that the comets would suddenly land on the earth and hurt them. But, in fact, even if a comet did hit the earth, nothing much happened. A comet is really a harmless thing. Comets have round heads and long tails , and they are very bright. Sometimes they look like heads with long hair flying with them. That's why they're called comets. Comet means long-haired. Like the stars and planets, comets are far away. But we can know its size. The head of a small comet is as wide as the Pacific Ocean. And a big comet's head is ten times as big as the earth. Its tail is millions of kilometers long. Then why wouldn't the great big thing hurt us if it hit the earth? Because it isn't solid. It's thin like cloud. Its tail is nothing but bright gas. And its head is made of small pieces and they could not hurt the earth. Some comets can be seen for a few months. Then they go away. Some of them come back in a certain number of years. Some are never seen again. Perhaps these comets that never return have broken into pieces. For some _ think that shooting stars are pieces of broken comets. From the passage we know the tails of comets are made of _ . A) water B) solid C) gas D) small stones
(Answer)
C

(Question)
Harry is eight years old. He goes to school near his home. He always goes there and comes home on foot. One day he came home from school late. His mother saw him and asked him, "Why were you late, Harry?" "My teacher was very angry and asked you to go to her office tomorrow." "To her office? Why?" his mother asked. "Because she asked a question in the class." said Harry. "Nobody could answer it, but I could. " "You are so clever, my son. " his mother said with a smile." What is her question?". Her question is "Who put the tomato on my chair and made my trousers dirty?" said Harry. The teacher's trousers were dirty because _ . A) she sat on the ground B) it was raining hard . C) she sat on the tomato D) she had it for a long time
(Answer)
C