初三英语42课.ppt

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1、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天津津北京北京三北防护林Lesson 421 Spell out every word which has the meaning of the phrase.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 mid

2、dle of6 d _ (go from one place to another) without anything between7 f _ a great overflow of water.8 h _ _ hear about something.9 w_ the opposite of long.revent roughtowardsarmlandmongirectlyloodear of ideWhy has China built the Great Green Wall?What does Wang Feng do?Because Chinese people do not w

3、ant 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 _directlythe 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 ofte

4、n happen.running awayhittingsoilrunning awaytreesfloodsdroughtTHE GREAT GREEN WALLFeatures(外貌)Across the _ part of China,_ kilometres long,between _and _kilometres wide.Functions(作用)It stops the _ from _.It stops _from _ _in the south.It has saved _.northen 7,0004001700 windblowing the earth awaythe

5、 sandmoving toward the rich farmlanda lot of landWang Feng and other workers They work at _ in _ .They have planted _ _ trees this year.Its _ 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.Y

6、ulin ShanXiten thousanddiffcultgrowfoodthanks to producesthe morethe betterThe key words of Lesson 42The key words of Lesson 42Lesson 42 The Great Green Wall is 7,000 kilometres long and between 400 and 1,000 kilometeres wide. They must be built all over the world. The more, the better.Goodbye!Goodbye!