Q: Read the following article and select the best answer. Article: Is there a strange something high up in the world's tallest mountains? If so, is it a big bear? Is it a monkey? Or is it a kind of man? No one knows. This mystery has puzzled the world for years. In 1887, a mountain climber found large footprints in the snow. They looked like the footprints of a very large man. But men don't walk without shoes in the snow! In 1906, other climbers saw more than footprints. Far away they saw a very large animal standing on two legs. As they watched, it ran very quickly. Fifteen years later, newspapers, had new stories about the "something". A mountain climber said he had seen the "snow man" walk slowly across the snow, far below him. He said it looked like a very large man. From then on, more and more people had stories to tell. But not until 1951 did a mountain climber bring back pictures of large footprints. His pictures showed clearly that the snowman walked on two legs, so it was not a bear or a monkey. Could it be an ape man? The mystery grew! And the mystery keeps growing. Some day we may find out just what it is that makes the large footprints. Question: The passage is about _ . - some mountain climbers - some strange animals - some large footprints - the mystery of the snowman
A: the mystery of the snowman

Q: Read the following article and select the best answer. Article: The Luck of the Irish Look at a map of Britain, and the island on the left is Ireland. It's a small but beautiful country with a long tradition of folk music. Up until 10 years ago just about the only thing that Ireland was famous for was its specialty black beer. Now Ireland is famous around the world for its music with names like "Kenya","U2" ,"Van Morrison"and more recently "the Corers". "Boyzone",one of the world's top boy bands ,is from Ireland too.What's more,Boyzone member shane has twin sisters,Adele and Heavy,who are members of "B Witched" The "Boyzone"story is interesting because they were created in 1993 by Dublin nightclub owner John Reynolds.They advertised in newspapers to find members for the group and 300wannabe pop stars applied! Ronan,who was just 17 when he dropped out of school to make his bid for stardom,and shane,who had been working as trained mechanic in his father's garage when he left to join Boyzone,were both lucky enough to be chosen. The other members are shoe-shop attendant stephen lately,former mechanic Mike Graham and one-time clothes store assistant Keith Dully. Many people expect bands that have been created by the music industry to produce boring music which doesn't become popular. Even the boys themselves knew they the would not easily achieve international pop music success. Boyzone quickly proved that they were more than just pretty faces and have sold millions of records around the world.At the moment ,they are not big stars in America,but they say that will change,when they begin a tour of the United States. Ronan will shortly also start recording as a solo artist. That does not mean the band will spilt yet,but we can expect Boyzone to split sometime in the next 18 months or so.Ronan has also recently become involved as one of the managers of new Irish boy band "West Life" whose song "Swear It Again"has recently been Number 1 in the British charts. Question: Acording to the passage, we know that _ . - Boy zone will split some day - Boy zone was successful because it was created by music industry - The boys in Boy zone were certain that they would be famous one day - Boy zone are going to perform in the States for Americans love them very much
A: Boy zone will split some day

Q: Read the following article and select the best answer. Article: A story tells that a senior villager led some other villagers carrying salt day and night to a town in order to trade rice as food the winter.One night they camped in a wilderness with a starry sky above.The senior villager,obeying the tradition passed down from forefathers,took out three blocks of salt and threw them into the campfire,probably to predict the changes of weather in the mountains. All eagerly waited for the old man's"weather report":if the salt in the fire produced crackling sound,they would have good weather in store;if no sound was produced,it then meant the good weather would soon end and a storm would come at any moment. The senior villager looked serious.The salt in the campfire made no sound at all.Convinced by this bad sign,he urged the whole team to set out immediately after daybreak.A young man in the group,however,insisted that they should not start in such a hurry,considering it superstitious to"forecast weather by using salt. It was not until the next afternoon that the young man caught up on the wisdom of the old man when the weather suddenly changed,with cold winds blowing and a snowstorm raging.In fact,the method used by the clan head could be well explained by modem science:whether or not salt produces sound in campfire depends on air humidity .That is to say,when a storm approaches,due to high humidity,the dampened salt blocks will not produce any sound in fire. Question: After reading the passage,we can know _ . - the lower humidity is,the bigger sound salt will produce in fire - the higher humidity is,the bigger sound salt will produce in fire - dampened salt blocks will result in winds and storms - the young man never wanted to understand the old man
A: the lower humidity is,the bigger sound salt will produce in fire

Q: Read the following article and select the best answer. Article: Based on new analysis, we are rapidly approaching major climate change and the effects on society and the environment could be quite severe. Geographers predict that within the next eighty years, current world climate zones could shift and some could completely disappear. Polar regions will get colder while tropical regions will get even hotter, forcing animals to migrate north. Climate changes like these could lead to the spread of diseases. Tropical storms and hurricanes will not only increase but may also become more intense. If the changes come too quickly, animal and plant species may not be able to adapt fast enough and could disappear. According to Science Daily, a new study predicts that by the year 2100, many of today's familiar climates will be replaced by climates unknown in today's world. It is urgent that we reduce the risks of these far-reaching consequences for the whole world. The planet itself has been showing signs of change. In 2004, a serious tsunami created by a major earthquake killed thousands in Sumatra and in 2008, thousands died in China because of another severe earthquake. Egypt was hit in 2009 with a major earthquake and Haiti was _ in 2010 by yet another massive earthquake. Within just the last few months, new reports from around the world have been coming in and most agree that our climate situation is much worse than previously thought. At this point, it doesn't matter what is causing it, but rather, what can be done about it. What's more, our world is getting more and more unstable every year. There is war and threat of war everywhere. Natural disasters are becoming more frequent and serious. However, other planets are experiencing global warming as well as our own and some scientists believe there may be some connection between this. No one knows anything for sure at this point because there is simply not enough data. Question: What is the author's purpose in using the examples of earthquakes? - To show the damage earthquakes caused. - To remind people to prevent future earthquakes. - To show major changes are taking place on the planet. - To tell us more earthquakes will happen in the future.
A: To show major changes are taking place on the planet.