One of the greatest warriors of history, Genghis Kahn, came from the Mongolian people. He controlled many countries in Asia and Europe because of his bravery and leadership in battle. This time period was known as the Yuan Dynasty in the 13th and 14th centuries. Genghis decided to go hunting one day and many of his warriors went with him. Genghis had his favorite hawk on his wrist. The hawk was trained to fly high in the air to look for game like deer, rabbits or wild birds. When his bird flew to the ground, Genghis would follow it and shoot the wild game with his arrows. It was his favorite hobby. This particular day, game was hard to find. Toward evening, Genghis sent all the men home and decided to go another way by himself. He even let his hawk go, thinking it would fly home as well. He became thirsty so he stopped by some rocks where he noticed water was dripping. He took a cup from his pack and filled it slowly. When he put it to his mouth, he was surprised for his hawk came and spilled all the water in his cup. He thought this was very unusual so he filled the cup again. The hawk rushed down and knocked the cup free from his hand. Genghis was now thirsty and angry. As he filled the cup a fourth time, he drew his sword to stop the bird interrupting him. As the bird flew down, Genghis killed it but his cup fell deep into the rocks in the scuffle . He decided to crawl up the rock of the mountain to find the source of the water. He found a pool and noticed a huge poisonous snake was dead in the water. He realized the hawk had saved his life. His anger had caused him to kill his favorite bird. In his despair , he promised to make sure of everything before he would become angry again. When the hawk tried to stop Genghis, he thought his hawk was trying to _ . A) save him B) bother him C) help him D) comfort him
B
In American crime movies, policemen search crime scenes for anything that might belong to a criminal-- bits of fingernail , blood or hair-- in order to find out who they are. What they hope to find is the key to their identity--their DNA. DNA is the chemical that contains a person's genetic makeup. Every person, except for identical twins, has unique DNA information. That is why we can use it to identify someone. There is no doubt that DNA evidence is becoming a very powerful tool for law enforcement officers. In the US, all 50 states and the federal government keep DNA databases of some criminals after they have been convicted . Whenever a crime happens, the police collect DNA from the crime scene and compare this with samples they already have in the criminal database. If they match any suspect in the database, then they've caught their criminal. Even if they don't, the DNA sample can still be used to determine the person's sex, height, hair and eye color1 and other characteristics. This helps police to create a physical profile of the criminal. Some people feel that the database should be made bigger to contain everyone's DNA and help to solve many more crimes. This would also avoid mistakes when someone is wrongly convicted of a crime. DNA doesn't make mistakes. However, other people are worried that it would violate their privacy. Someone's DNA can be used to gather information such as the person's family and ethnic background, whether he or she has a gene mutation or certain genetic diseases, and other personal issues. People are afraid that this information might be used inappropriately. They may fear that employers might read it and treat them differently. People may also be afraid that personal data might get into the hands of insurance firms or loan companies. For example, if they knew from your DNA that you had a genetic risk of a serious disease, they might be able to refuse you life insurance, a loan, or even a job. Clearly, the use of DNA evidence will continue to help the police solve... Which is TRUE according to the article? A) DNA evidence has been widely used in criminal law cases. B) Everyone in the world has their own unique DNA composition. C) In America, anyone who has been convicted must submit a DNA sample. D) America's DNA database is the biggest national DNA database in the world.
A
Q: A person steps on what seems like solid ground but discovers with horror that the ground is giving way underfoot. The person struggles desperately but is trapped. There is no escape. Slowly the person sinks deeper and at last is gone. The solid ground was solid only in appearance. It was actually quicksand, which is a deep mass of fine sand mixed with water. How is quicksand formed? Water pushes up from below the surface and is held by the sand. The grains of sand are forced apart by the water. They cannot hold any weight. The subsurface water may have come from a spring, a river, or a stream. Sometimes pools of water near beaches become filled with sand. When the soil under these pools does not allow for good drainage , the sand can become stretches of quicksand. Is it true that a person who steps into quicksand is doomed to die? No, for people have fought their way from quicksand to firm land again. It is panic that creates the condition that can result in death, for the more a person struggles, the worse matters become. Quick movements will make the sand yield for a time, but then it rushes back and settles solidly around the body. People trapped in quicksand should either lie back with arms outstretched, or not move at all. When the weight of the sand around his body has displaced equals that person's weight, the victim will stop sinking. With feet held still, and with slow movements of the arms, as in the backstroke in swimming, people have managed to roll to safety and reach firm ground. Quick movements by a person trapped in quicksand will _ . A) help the person reach firm ground B) help prevent panic C) make the same sand yield temporarily D) make the sand hold the person's weight
A: C
Q: John Smith was a writer, who wrote detective stories for magazines , though he never dealt with criminals . One evening he could not finish an end for a story. He sat in his study , but he had no ideas. So he decided to go to the cinema. When he came back, he found that he had had a visitor. Someone had broken into his house. The visitor had had a drink, smoked several of his cigarettes and had read his story. The visitor left him a note. "I have read your story and I don't think it is very good. Please read my suggestions and you can finish it. By the way, I am a thief. I'm not going to steal anything tonight. But if you become a successful writer, I will return." John read the thief's suggestions. Then he sat down and wrote the rest of the story. He is still not a successful writer, and he is waiting for his "visitor" to return. Before he goes out in the evening, he always leaves a half-finished story in his study. Detective stories are stories about _ . A) science B) children C) the future D) the police
A: D