Q: Sometimes people are not clear about what kind of food is healthy, and what kind of food may do harm to our health. The USDA has prepared a food guide to help people learn about which kind of food is the healthiest to eat. The food guide describes six main food groups: meat (like fish and chicken), dairy (like milk and cheese),grains (like bread and rice), fruit and vegetables. The last group is fats and sweets. The USDA also suggests how much of each food group is healthy to eat daily. Though this guide was prepared by the US government, it is very useful for people all over the world. As a _ of years of study, we know that too much animal fat is bad for our health. For example, Americans eat a lot of meat and only a small amount of grains, fruit and vegetables. Because of the way they eat, they have a high rate of cancer and heart disease. In Japan, people eat large amounts of grains and very little meat. The Japanese also have a very low rate of cancer and heart disease. The Japanese live longer than anyone else in the world. However, when Japanese people move to the US, the rate of heart disease and cancer goes up as their eating habit changes. And as hamburgers, ice creams and other high-fat foods become popular in Japan, the rate of heart disease and cancer is going up there as well. People are also eating more meat and dairy food in other countries, in which the disease rate is going up along with the change of the way people eat. Doctors everywhere suggest people eat more grains, fruit and vegetables and less meat and dairy food. Eating healthily is important for children as well as their parents. When parents have poor eating habits, their children usually do, too. After all, children eat in the same way as their parents. When parents eat healthy food, the children will learn to enjoy it, too. Then they will develop good eating habits. Doctors suggest parents give their children healthier food such as fruit, vegetables and juice. Everyone wants to live a long, healthy life. We know that the food we... What is the USDA in the passage? A) A group of doctors in the US. B) An office of the US government. C) A report on diseases in the US. D) An order given by the US President.
A: B

Q: It is evening,an old cock is sitting in a tall tree. A fox comes to the tree and looks at the cock . "Hello,Mr Cock. I have some good news for you," says the fox. "Oh?" says the cock,"what is it?" "All the animals are good friends now. Let's be friends,too. Please come down and play with me." "Fine!" says the cock,"I'm very glad to hear that." Then he looks up."Look! There is something over there." "What are you looking at?" asks the fox. "Oh,I see some animals over there. They are coming this way." "Animals?""Yes,oh,they are dogs." "What? Dogs!" asks the fox,"Well...well,I must go now. Goodbye." "Wait,Mr Fox," says the cock,"Don't go. They are only dogs. And dogs are our friends now." "Yes. But they don't know that yet." "I see,I see," says the cock .He smiles and goes to sleep in the tree. Where is the cock? A) under the tree B) near the tree C) on the tree D) in the tree
A: D

Q: There is an elephant and a monkey. They're friends. But one day they want to know who is stronger. One of them says, "Who can get apples over there, who is stronger." There is a river over there. The monkey says, "I can't swim." The elephant says, "I can swim. Please sit on my back." They go across the river. The apple trees are very tall. The elephant can't reach the apples. The monkey climbs up the tree and gets many apples. Now they know they should help each other. From the story we should _ . A) learn from the elephant B) learn from the monkey C) A and B D) help each other
A: D

Q: Penguins are lovely animals. Most people like them. But now as many as 10 of the 17 kinds of penguins are in danger of disappearing. The number of penguins has decreased by ( ) 30% since 1987. Penguins are black and white birds that live in the southern part of the world. They are common in the Antarctic Continent ,New Zealand, Australia and South America. Many live near cold waters . But some live near warm waters in Galapagos Islands. Penguins cannot fly, but they are fine swimmers. The shape of their body helps them to survive. Penguins eat fish and krill . They have short wings that help them to dive up to 900 feet to catch larger fish. They can swim 10-15 kilometers an hour which lets them protect themselves. They also have lots of body oil that helps in keeping them dry in the water. The warming of the earth is the reason for the decrease in the number of penguins. The hotter and hotter air has caused ocean waters to become warmer. Higher water temperature has decreased the fish and krill. Some years later these birds are completely unable toreproduce. And many adult penguins die of hunger. Too much fishing, exploration for oil and oil leaks also make penguins be in danger. Poisonous things in ocean waters are another danger. Penguins also have their enemies, including sharks, seals and sea lions. What's the passage mainly about? A) Fish and krill have decreased. B) Ocean waters are polluted. C) Sharks and seals are the enemies of penguins. D) The decrease in the number of penguins.
A: D