Article: Millions of people die of hunger in southern Africa every year, but when Zambia was offered thousands of tons of free maize by the US, the government politely said no. "We don't know whether the food is safe," said Zambia's commerce, Trade and Industry Minister Dipak Patel. His worries are shared by countries around the world that are in two minds about America's genetically modified(GM,)crops.Just last week, EU member nations were discussing whether or not to import GM sweet corn from the US. Ever since people started farming, they have tried to crossbreed plants to make them stronger or better tasting. At one time, only related plants could be crossed with each other. But when GM techniques were developed in the 1970s, scientists were able to put a single gene from a living creature into an unrelated creature. This means they can make crops more productive and resistant to disease by adding genes from other species.They can also create food with special characteristics, such as "golden rice", which is enriched with vitamin A. But many people believe GM foods are a health risk. At the moment, the official argument is that GM foods "are not likely to present risks for human health". But there are still many questions to be answered as the foods are produced in different ways. Some experts believe the genetic material added to plants can transfer to humans and give damage to our bodies. Further harm could be caused by the genes from GM plants crossbreeding with naturally produced crops. People in China are also getting worried about GM foods. More than 70 percent of the country's soybean oil is produced from imported GM soybeans. Meanwhile, an investigation last November found that 12 of 60 famous foods sold across the country were GM products. The government has begun to introduce a marking system for GM goods so that people can choose whether or not to eat them. Question: Why has Zambia refused the American free maize? Yes or no, is the answer "they are concerned about the safety of GM foods"?
No

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Article: Edward Nino Hernandez is 24 years old. In many ways,he is a traditional Colombian man. He loves to dance, dreams of owning a fast car and wants to see the world. However, he has just been officially _ as the world's shortest living man by Guinness World Records with a height of 27 inches( [?]0. 7m). Although he has cataracts in both of his eyes that require an operation that the family can't afford, he said, " I feel happy because I'm special. " He also said he has a girlfriend. Nino works part time as a dancer. Recently, he has won a part in a new film, playing a drug thief. Nino said there are some disadvantages of being the world's smallest man. "It bothers me that people are always touching me and picking me up,"he said. Nino's mother, Noemi Hernandez,has 5 children and Nino is the oldest. She said, " He hasn't grown since he was 2 years old. " She added that doctors could not explain why Nino was so small. She said Nino weighed just 3. 3 lb( 1. 5kg) when he was born and was just 15 inches long. Doctors at first wondered why he was so small and studied him until he was three years old, but then" lost interest" . She and her husband lost a daughter who was born similarly small in 1992. Their youngest child, Miguel Augel, 11, stands 37 inches tall. The other three boys are of normal height and appearance. Nino had to repeat several years of school before dropping out when he was about 13. His mother said he loves to travel, though he hasn't been outside Colombia. The former smallest man in the world was He Pingping of China ,who was 1. 5 inches taller than Nino and recognized by Guinness as the shortest man. He died in March. Question: From the text we can know _ . Yes or no, is the answer "Nino didn't grow after the age of 2"?
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No

Ques: Article: I always avoid going on field investigations with the toxics team, unless it's ly necessary. It's not that I mind the hard work, or am afraid of coming into contact with toxic substances. What I fear is quickly losing hope about the work I do. However, doing field research with the toxic team, all I see and feel is filth---nothing else. Even if I close my eyes, I can smell the smell of food processing, rotting organic waste from paper mills and chemicals from clothing manufacturers. One morning, I went to investigate a discharged pipe to document and collect samples of pollutants secretly being emitted by a textile mill. I had to work with the utmost secrecy in order to avoid being discovered by the textile mill. I dipped a long measuring pole into the large polluting pipe to measure the volume of polluted water being emitted. But the surface of the water, covered in oil and filth, made me feel as if to vomit . All of a sudden, I felt someone hit me on my back, it frightened me so much that I almost fell into the water. I grasped the pole and looked behind me to see an old man standing there. He asked: "Can you catch fish here?" I realized that he thought I was holding a fish pole, so I kept calm and said: "Yes, I heard that there's a kind of small fish living in this water, and it has medicinal benefits." The old man grew quite curious and replied: "That may be. If a fish can survive in water as dirty as this, it must have a lot of resistance. So it wouldn't be too strange if such fish had medicinal benefits." It was clear he was just passing by, so I answered: "Yeah, survival of the fittest. Fish that adapt can survive, just like us humans." He kept talking to me and didn't want to leave. He wanted to see whether or not I would catch the small fish with medicinal benefits. Question: The text is mainly about _ . Yes or no, is the answer "an experience of doing research on pollution"?
Ans: No

Article: It's great fun to explore new places--it feels like an adventure, even when you know you're not the first to have been there. But make sure not to get lost or waste time going round in circles. * Do the map reading if you're being driven somewhere. It'll be easier if you keep turning the map so it follows the direction you' re traveling in. Keep looking ahead so that you can give the driver lots of warning before having to make a turn, or you'll have to move to the back seat. * Get a group of friends together and go exploring. You'll need a good map, a compass , a raincoat, a cell phone to call for help in case you get lost, and a bit of spare cash for emergencies . Tell someone where you're going before you set out and let them know what time you expect to be back. The test is in not getting lost, not in seeing how fast you can go, so always stick together, waiting for slower friends to catch up. * See if your school or a club organizes orienteering activities, in which you need a map and a compass to find your way. This can be done as a sport, with teams trying to find the way from A to B (and B to C, etc. ) in the fastest time, or simply as a spare-time activity. Either way, it's not only good fun, but a great way to keep fit. Question: Orienteering activities can _ . Yes or no, is the answer "help people stay healthy"?
No