中考英语阅读科学园地.docVIP

第 篇 科学园地 [材料1] Robots seem very new to most people. But they have a long history. The first one was made by a Greek inventor. You may have seen robots in some films. The robots in these films are stronger, faster and cleverer than people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring jobs. Some people can’t look after themselves and robots are used to help them. For example, some people can’t see. Many of these people use a dog to help themselves move around. This dog is called a guide dog. Scientists are making a robot to help them. In the future, robot dogs might take the place of these guide dogs. Robots are also used in American hospital. At one hospital, a robot takes meals from the kitchen to the sick people’s rooms. It never loses its way because it has a map of the hospital in its computer system The first robot was invented by a Greek. Robots can only be seen in films. Robots can help some people look after themselves. Today’s robots have quite a few different uses. A robot cooks meals for the sick people at an American hospital. Key: 1.T 2.F 3.T 4.F 5.F [材料2] Why Is the Sea Salty? There is a lot of salt on the earth, and it mixes very well with water. There is some salt in all water. Water on the land runs into lakes and rivers. These rivers run into the seas and oceans. They carry a little salt with them. Some of the ocean water moves into the air and clouds. It evaporates. Salt cannot evaporate. It stays in the ocean. The water in the oceans has more salt than river water. Ocean water is about 3.5% (three and a half percent) salt. Some seas have more salt than others. Some lakes do not have a river to carry the water and salt away. Some of the water leaves the lakes. It evaporates, but the salt cannot. These lakes are very salty. There are two famous lakes like this. They are the Dead Sea in the Middle East and Great Salt Lake in the state of Utah in the United States. Th