Unit 13 We are trying to save the earth单元复习课件 2023-2024学年人教版九年级英语全册

Unit 13 We are trying to save the earth 单元复习 Game time The earth is a planet in the solar system(太阳系). True False The earth is 4.6 thousand years old. True False billion It takes the earth about 24 hours to spin around(自转). True False The earth goes around the Moon. True False sun Most of the earth's surface is covered by trees. True False water The World Earth Day is on April 22. True False Know the earth The earth is the ________planet from the sun. More than _____of the earth’s surface is covered by oceans. Because the earth has so much water on it, it is sometimes called the ___________. The earth is important to us, because it is our_______ . About 7 billion _______ live on the earth right now, as well as millions of species of ________and________. So far, we have not found any other planet in the entire universe(宇宙) that would make a good home for us. So it is important that we___________ the planet we have. third take care of animals plants home people blue planet 70% Gifts from the earth We use ...to.... We can get...from... ...can be used to ... ...provide sb with sth... ...give sb sth ... Save the earth Have we taken good care of the earth? Save the earth-why 1.Choose suitable titles for Paragraphs 1-4. A. Traffic pollution B. More carbon dioxide C. Fewer trees D. Factory pollution 2.Fill in the blanks. Problem Effect on the environment fewer trees pollute the land and water; rivers and lakes are dead polluted air; health problem traffic pollution factory pollution more carbon dioxide The earth is taken away; forests have become deserts; animals and plants are disappearing harmful radiation from the sun reaches to the earth--cause cancer Save the earth-how(government) to fight dealing countries with the first making selling cleaner making has planted Save the earth-how(middle school students) Work in groups and try to write at least three ways to help save the earth