初三英语42课PPT课件.ppt

内蒙古山西河北新疆青海甘肃宁夏陕西黑龙江吉林辽宁天津北京三北防护林 Lesson 42 THE GREAT GREEN WALL THE GREAT GREEN WALL THE GREAT GREEN WALL 1 Spell out every word which has the meaning of the first letter is given. 1 p______ stop something from happening. 2 d_____ a long time when there is little or no rain. 3 t______ (moving) near a place. 4 f_______ land used by farmers to grow things. 5 a _____ in the middle of 6 d _____ (go from one place to another) without anything between 7 f ______ a great overflow of water. 8 h ___ __ hear about something. 9 w_____ the opposite of long. revent rought owards armland mong irectly lood ear of ide Why has China built the Great Green Wall? What does Wang Feng do? Because Chinese people do not want to see more floods and droughts. He is a worker of the Great Green Wall. the forests → help to keep water from____ ____ the trees → keep rain drops from _______the _____directly the dead leaves → keep the water from ____ ____ the water → then stays in one place → is used by the _____ in the forest. So ______ are prevented and _______ does not often happen. running away hitting soil running away trees floods drought THE GREAT GREEN WALL It stops the ____ from ________________. It stops _______from _________________ __________in the south. It has saved _____________________. Functions (作用) Across the __________ part of China, ______ kilometres long, between ____and _____ kilometres wide. Features (外貌) northen 7,000 400 1700 wind blowing the earth away the sand moving toward the rich farmland a lot of land Wang Feng and other workers They work at ________ in _________ . They have planted ______ ________ trees this year. It`s ________ to work on the Great Green Wall. They have to ________ their own _______. But _______ ______ the Great Green Wall,the land ________more crops. So ____ _____ trees there are, ____ ____ harvests they have. Yulin ShanXi ten thousand diffcult grow food thanks