Bluebirds looking secretly from nest boxes. Tadpoles swimming in a pond. Tiger swallowtails flying quickly around a butterfly bush. And over here, a class of students watching it all. A field trip to a nature center? No, it's a schoolyard. With some work on your part, it could even be your schoolyard. Interested in building a schoolyard habitat? Here's how to get started. Gather a Team Students can do a lot on their own, but you'll need adults for a project this big. Get teachers, parents, and even the headmaster interested. Don't forget the maintenance staff--they know more about your school's yard than anyone else and can give you lots of help. Also, ask around your neighborhood for gardeners, naturalists, and others willing to give advice. Map Your Site Which part of the schoolyard can you turn into a habitat? Is there an unused corner of the playground? Part of a lawn or field you could let go wild? You'll need to make a map of the area showing what's there now. Then you can figure out how you want to change it. For that, you need a plan. Plan a Habitat Here's what you'll need to make your area attractive to wildlife. Food: Plant flowers, bushes, and trees. These provide seeds, berries, leaves, flowers, and sweet liquids. And all of these feed birds, and insects. You can also add some feeders for squirrels and birds. Where possible, stick with native plants--wild plants that grow naturally in your area. They need less care, which means less work for you. Water: A small pond, birdbath, or even a shallow dish of clean water in the ground will attract birds. Other small animals like insects may visit as well. Shelter: Bushes and trees make great escapes for birds. Tall grass and "weeds" are home to grasshoppers, garter snakes, and some ground-nesting birds. You can also add stone piles and brush piles. Places to Raise Young: Butterflies need special plants to lay their eggs on. Frogs and toads lay eggs only in shallow water. Many birds... What is this article mostly about? A) How to start a wildlife habitat. B) Making a place where animals can hide. C) How to gather food for a wildlife habitat. D) Creating places for people to plant gardens.
A
Everybody hates rats. But in the earthquake capitals of the world - Japan, Los Angeles, Turkey - rats will soon be man's new best friends. What happens after an earthquake? We send in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can't get into small spaces. So now a new research project is using a smaller animal to save lives: the rat. How does it work? First, the rat is trained to smell people. When this happens, the rat's brain gives a signal .This is sent to a small radio on its back, and then the rescuers follow the radio signals. When rat's brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person. Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, "Robots' noses don't work well when there are other smells around. Rats are good at that. " Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don't need electricity! The "rat project" is not finished, but Julie Ryan of International Rescue Corps in Scotland says, "It would be fantastic. A rat could get into spaces we couldn't get to, and a rat would get out if it wasn't safe." Perhaps for the first time in history, people will be happy to see a rat in a building(but only after an earthquake, of course.) After reading the passage we can know _ . A) at present rats have taken the place of dogs in searching for people B) the "rat project" has been completed C) people are now happy to see a rat in a building D) now people still use dogs and robots in performing rescues
D
(Q).
We arranged that Kissinger would fly to Vietnam early in July and then stop in Pakistan on the way back. There he would develop a stomachache that would require him to stay in bed and not be seen by the press. Then, with President Yapha's help, he would be taken to the airport where a Pakistani jet would fly him over the mountains to China. Kissinger's trip was given the name Polo after Marco Polo, another Western traveler who made history by journey in China. Everything went quite smoothly. His slight illness in Islamabad received only small attention from reporters covering him. They accepted the story that he would be kept shut up for at least a few days and began making arrangements for their own activities. Because of the need for complete secrecy and the lack of any direct communication facilities between Beijing and Washington, I knew that we would have no word from Kissinger while he was in China. Even after he had returned to Pakistan, it would still be important to keep it secret, so before Kissinger left, we agreed on a single code word - Eureka - which he would use if his missions were successful and the presidential trip had been arranged. On July 11, Al Haig, who knew our code work, phoned to say that a cable from Kissinger had arrived. "What's the message?" I asked. "Eureka". he replied. From the passage we can infer that Kissinger's cable carrying the message "Eureka" must have been sent _ . A) before he had left Beijing B) soon after he had returned to Pakistan from China C) as soon as he had arrived in Washington on July 11 D) before he returned to Pakistan on July 11
(A).
B