鲁教版英语九年级单元测试-unit3

鲁教版英语九年级单元测试-unit3内容摘要：

lute our air every day. Sometimes the polluted air is so thick that it is like a quilt over a city. This kind of quilt is called smog（烟雾） . Many countries are making rules to fight pollution. Factories must now clean their water before it is thrown away, they mustn’t blow dirty smoke into the air. We need to do many other things. We can put waste things in the dustbin and not throw it on the ground. We can go to work by bus or with our friends in the same car. If there are fewer people driving, there will be less pollution. Rules are not enough. Every person must help to fight pollution. 1. Hundreds of years ago, life was much harder than it is today because _______. A. there were not any modern machines B. there was no modern medicine C. both A and B D. there were not many people 2. What is the biggest problem in today’s life? A. Water pollution B. Air pollution C. Noise D. Pollution 3. The most serious kind of pollution is ________. A. noise pollution B. air pollution] C. water pollution D. A, B and C 4. Factories must clean their water ________. A. before they are thrown away B. when they are thrown away C. after it is thrown away D. before it is thrown away 5. From the passage we know that ________. A. a few years ago, there was no smog at all B. today people don’t have to talk to each other in a loud voice C. we can drink water from the polluted rivers and lakes’ D. people are making rules in order to fight pollution C Popular music in America is what every student likes. Students carry small radios with earphones and listen to music before class， after class， and at lunch. Students with cars buy large speakers and play the music loudly as they drive on the street. Adult(成年的 ) drivers listen to music on the car radio as they drive to work. They also listen to the news about sports， the weather， and the life of American people. Most of the radio programmers are music. Pop or popular music singers make much money. They make a CD or tape which radio stations use in many places. Once the popular singer is heard all over the country， young people buy his or her tape. Some of the money from these tapes goes to the singer. Wherever the singer goes， all the young people want to meet him or her. Now the singer ahs bee a national star. There are。