People who are hit by lightning and survive often have long-term effects. These may include memory loss, sleep disorders, muscle pain and depression . Experts tell people to seek the safety of a building or a hard-top vehicle any time they hear thunder, even if it is not raining. They say lightning can strike as far as sixteen kilometers from any rainfall. Lightning can travel sideways. And at least ten percent of lightning happens without any clouds overhead that you can see. People who are outdoors should make sure they are not the tallest thing around. Bend low to the ground, but do not lie down. And do not stand near a tree or any tall object. Get away from water and anything made of metal. A car is safe, but do not touch any metal inside. Safety experts say people in buildings should stay away from anything with wires or pipes that lead to the outside. The National Weather Service says if you plan to _ any electronic equipment, do so before the storm arrives. Do not use a wired telephone. Do not use water. All these can carry electricity. Some people think a person struck by lightning carries an electrical charge afterward. Experts say this is not true. It is safe to begin emergency treatment. Each year about four hundred people in the United States are struck by lightning. Last year forty four people died. The average is close to seventy. The National Weather Service says that is more than the number of people killed by severe storms. Which of the following is the main idea of the passage? A) The latest information about lightning. B) Some common knowledge about lightning safety. C) How lightning comes into being. D) Where we should hide in case of lightning.
B
Recently,scientists attending a meeting in Chicago presented new studies showing how food and its production affect global warming.They offered some suggestions for how to eat in a more environmentally friendly way. For many years,scientists have warned us that our planet is getting warmer.If current trends continue,animals may start to die off and life could get very difficult for everyone.The temperature is rising because humans have been releasing massive amounts of greenhouse gases into the atmosphere,which surround the planet and keep heat from escaping.One of these gases is carbon dioxide. Most carbon dioxide we produce comes from the process of making and eating food,the scientists reported in Chicago.The production of meat contributes to a lot of carbon dioxide.And much of meat's contribution comes from beef,which is responsible for releasing even more greenhouse gases into the atmosphere. The process of making a hamburger,for example,requires a lot of energy.A cow has to be fed and raised,and cow's wastes are a major source of greenhouse gases.After the cow is killed,the meat has to be processed and shipped to a consumer,which takes fuel.And most of the cow won't even be used for meat people eat. By the time a hamburger finally lands on a dinner plate,it has taken a heavy toll on the environment.It is believed that the process of making a halfpound allbeef burger adds about 19 times the weight of hamburgers in carbon dioxide. The message is clear:We can greatly reduce the production of greenhouse gases by eating less beef.Other kinds of meat like pork and chicken do less harm to the environment--at least in terms of the amount of greenhouse gases released.Nathan Pelletier,a scientist at Dalhousie University in Canada,reported that if everyone in industrial countries ate chicken instead of beef,we would cut the Earth's greenhouse gases by more than half. All kinds of meat,the scientists reported,are harder on the planet than vegetables.To grow and eat a pound of potatoes,for example,sends less than... What is likely to happen if the climate is getting warmer according to the passage? A) Sea level will continue to rise sharply. B) Human beings won't have enough food. C) It would be very hard for man to survive. D) All the animals and plants will disappear.
C
Q: An old problem is getting new attention in the United States--bullying.Recent cases included the tragic case of a fifteen-year-old girl whose family moved from Ireland.She hanged herself in Massachusetts in January following months of bullying.Her parents criticized her school for failing to protect her.Officials have brought criminal charges against several teenagers. Judy Kaczynski is president of an anti-bullying group called Bully Police USA.Her daughter Tina was the victim of severe bullying starting in middle school in the state of Minnesota.She said, "Our daughter was a very outgoing child.She was a bubbly personality, very involved in all kinds of things, had lots of friends.And over a period of time her grades fell completely.She started having health issues.She couldn't sleep.She wasn't eating.She had terrible stomach pains.She started clenching her jaw and grinding her teeth at night.She didn't want to go to school." Bullying is defined as negative behavior repeated over time against the same person. It can involve physical violence.Or it can be verbal -- for example, insults or threats.Spreading lies about someone or excluding a person from a group is known as social or relational bullying. And now there is cyberbullying, which uses the Internet, e-mail or text messages.It has easy appeal for the bully because it does not involve face-to-face contact and it can be done at any time. The first serious research studies into bullying were done in Norway in the late 1970s.The latest government study in the United States was released last year.It found that about one-third of students age twelve to eighteen were bullied at school. Susan Sweater is a psychologist at the University of Nebraska-Lincoln and co-director of the Bullying Research Network.She says schools should treat bullying as a mental health problem to get bullies and victims the help they need.She says bullying is connected to depression, anxiety and anti-social behavior, and bullies are often victims themselves. Which of the following can be the best title of the text? A) Bullying--Old Irish Girl Committed Suicide B) 15-Year-Old Irish Girl Committed Suicide C) Cyberbullying-Taking Off in Schools D) How to Find Bullying among Teens
A: A
It was a very foggy day in London. The fog was so thick that it was impossible to see more than a foot or so. Buses, cars and taxis were not able to run and were standing by the side of the road. People were trying to find their way about on foot but were losing their way in the fog. Mr. Smith had a very important meeting at the House of Commons and had to get there but no one could take him. He tried to walk there but found he was quite lost. Suddenly he bumped into a stranger. The stranger asked if he could help him. Mr. Smith said he wanted to get to the Houses of Parliament. The stranger told him he would take him there. Mr. Smith thanked him and they started to walk there. The fog was getting thicker every minute but the stranger had no difficulty in finding the way. He went along one street, turned down another, crossed a square and at last after about half an hour's walk they arrived at the Houses of Parliament. Mr. Smith couldn't understand how the stranger found his way. "It is wonderful," he said. "How do you find the way in the fog?" "It is no trouble at all to me," said the stranger, "I am blind." According to the passage, we can infer that "bump into" means _ . A) knock off B) meet by chance C) strike D) traffic accident
B