九年级英语全册unit13we'retryingtosavetheearthperiod1同步练习新版人教新目标版

Unit13 Were trying to save the earth.Section A Period1同步练习1、 单词填空。1Lets pick up the _ (垃圾)and put it into the bin.2Factories should burn less _to reduce air pollution.3The book I want is right at the _ (底部)of the shelf. 4Many people prefer _ (木头的)floors to those covered with bricks.5.The f _ lost his boat in the storm. 2、 单选。1.Its necessary for the phubbers(低头族) to _ the time they spend on their smart phones. Acut in Bcut off Ccut down Dcut up2.Everyone was afraid of him because there were deep_lines(皱纹)on his face. Augly Bkind Cbeautiful Dpeaceful3. Li Ming used _ on the right in China, but he soon got used _ on the left in England.A . to drive; to drive B . driving; driving C . to driving; to drive D . to drive; to driving 4. A study shows that good habits play a very important _in childrens education. I think so. Asense Bpart Creason Dmeaning5._ .Sorry，I wont.Ill pick it up.ATry to keep the classroom clean.BDont throw litter everywhere.CDont make any noise in public.DLets pick up the litter on the ground.三、情景对话。A. What should we do to protect our Earth?B. What are you reading? C. What will our life be like in the future?D. What should we do in public places?E. Because our Earth is being damaged seriously now.F. We should also learn to save water. G. What can you do to help us?A: Hi, Millie _ B: Im reading a report about our life in the near future. A: _ B: It says we have to move to another planet in the future.A: Why?B: _ It will not be a good place for people to live after a few years.A: _ B: We should plant more trees.A: I agree. What else?A: _ A: Yes. We can do it by taking a shorter shower.B: Youre right,四、阅读。（2017台州)Our factories and homes burn coal and oil. Every year we have forest fires somewhere. Many scientists believe that the weather is changing. The earth will perhaps be warmed by about 7 at the South Pole(极) and the North Pole. The ice will be melt(融化). The sea level(平面) will rise by about 7 meters. As a result, water will cover cities like London, Tokyo and New York. Some ports(港口) and towns along the coasts will disappear under water. Some other scientists think that the dust, smoke and pollution from coal, wood and oil fires will block out(封闭) the ultraviolet rays(紫外线). Then the earth will become colder and great sheets of ice will cover Europe and North America. When chemicals in the air mix with rain, we have acid(酸) rain. Acid rain can bring us great harm. It destroys(破坏) forests and kills life in lakes and rivers. People are beginning to see how serious the problem is. They find it important to work with nature instead of against it. They are trying to save the earth in many different ways. But one of the most important things to do is to make people understand that saving the earth is saving ourselves.（1）What do our factories and homes do?A . They burn coal and oil. B . They cut down the trees. C . They burn down forests. D . They have acid rain.（2）Some scientists believe that _ . A . the earth is growing warmer B . we have to burn down the forests every year C . we can find oil in our forests D . we need coal in our forests（3）Ice at the poles will _ if the earth gets warmer. A . become thicker by seven meters B . cover cities like London and Tokyo C . raise the sea level by 7 degrees D . become water and make the sea rise（4）What can we learn from the third paragraph?A . The dust together with pollution from coal, wood and oil fires will bring us more heat from the sun. B . The ultraviolet rays will come more because of the dust and pollution from fires. C . According to the scientists, the change in weather hardly has anything to do with the pollution. D . As a result of the dust and pollution from coal, wood and oil fires, the earth will