八年级英语课件Goforit911-12复习课件.ppt

* * 第一部分JBⅢ第六课时： Units 11-12 复习策略 课前热身 要点、考点聚焦 典型例题解析 课时训练 复习策略 1.掌握情态动词的被动语态的结构及其用法。  2.掌握计量表达方式。 3.熟练运用英语表达种树的步骤及用英语制定布告、广告等。 4.熟练描述宇宙及人造卫星。   课前热身 1.地面一定要刚好——既不太湿也不太干。 The ground must be just right—neither too wet nor too dry. 2.为树挖一个大洞。 Dig a hole large enough for the tree. 3.确保它是直的。 Make sure that it is straight. 4.把树系在木棍的上部保持树直。 Tie the tree to the top of the stick to keep it straight. 5.你听说过绿色长城吗? Have you ever heard of the Great Green Wall? 6.森林里的树木可以阻止雨水直接冲击土壤。 The trees in the forests can keep rain drops from hitting the soil directly. 7.因此他们沿着国家的北部修建了一道新的长城。 So they have built a new Great Wall across the northern part of the country. 8.它将阻止沙地向南方肥沃的农田迁移。 It will stop the sand from moving towards the rich farmland in the south. 9.几年之后，那些山上也都将树木葱葱。 In a few years time, those mountains will be covered with trees, too. 课前热身 10.多亏了绿色长城，土地里能产更多的庄稼。 Thanks to the Great Green Wall, the land produces more crops. 11.学生们应该在课内课外讲英语。 Students should speak English in and out of the class. 12.还有20多棵树要种。 There are twenty more trees to be planted. 13.“菜单”用来展示一系列信息，让你选择去做什么。 The menu is used for showing a list of information and letting you choose what to do.  课前热身 14.调制解调器是把电脑连接到电话线上的。 The moden is used for connecting a computer to a telephone line. 15.月球围绕着地球旋转。 The moon travels round the earth. 16.到目前为止，没有人去过比月球更远的地方，但是无人驾驶的宇宙飞船到过宇宙其他的一些地方。 So far, no man has travelled farther than the moon, but spaceships without people have reached other parts of the universe. 17.许多国家已经向太空发射了人造卫星。 Manmade satellites have been sent up into space by many countries. 课前热身 18.例如，在卫星的帮助下，中国能向世界的另一端发射电视 和无线电广播节目。 For example, with their help China can send its TV and radio programmes to the other side of the world. 19.我们对宇宙的认识一直在增长。 Our knowledge of the universe is growing all the time. 20.这世界本身正变得越来越小，在不同国家的人民能更好地 加深相互间的理解。 The world itself is becoming a much smaller place and the people from different