英语阅读理解带翻译-importantways

　　Unfortunately，in many parts of the world，man has not realized that the third of these services is the most important.Inhis eagerness to draw quick profit from the trees，he has cut them down in large numbers Two thousand years ago，a richand powerful country cut down its trees to build warships，with which to gain itself an empire It gained the empire

but，without its trees，its soil became bare and poor.When the empire fell to pieces，the country found itself faced by floodsand starvation.

　　Even where a government realizes the importance of a plentiful supply of trees，it is difficult sometimes to make thepeople realize this.They cut down the trees but are too careless to plant and look after new trees So，unless the governmenthas a good system of control，or can educate the people，the forests slowly disappear

　　This does not only mean that there will be fewer trees.The results are even more serious：for where

　　there are trees，their roots break the soil up，allowing the rain to sink in， and also bind the soil.This prevents the soilfrom being washed away.But where there are no trees，the rainfalls on hard ground and flows away on the surface，andthis causes floods and the rain carries away the rich topsoil in which crops grow When a11 the topsoil is gone.nothingremains but worthless desert.

　　41.Trees are useful to man mainly in three ways，the most important of which is that they can ____　　A. keep him from the hot sunshine　　B.enable him to build warships　　C.make him draw quick profit from them　　D .protect him from droughts and floods　　42.It’s a great pity that ____

　　A.man is only interested in building empires　　B.man is eager to profit from trees

　　C.man hasn‟t realized the importance of trees to him　　D. man hasn‟t found out that he has lost all trees　　43.Sooner or later the forests will disappear ______.　　A. unless a country has a plenty supply of trees　　B.unless people stop cutting down their trees

　　C.unless aIl people are taught the importance of planting trees

　　D.unless the government punishes those who cut trees instead of planting them　　44.The word“bind”in Paragraph 5 means“____”　　A.to wash away　　B.to make wet

　　C.to make stay together　　D.to improve

　　45. When there is a heavy rain.trees can help to prevent floods.as they can.　　A.keep rain from falling down to soft ground　　B，cause the soil to allow rainwater to sink in　　C.prevent the soil from being washed away

　　D .make the topsoil stick together　答案：DCCCB　　　　Passage 3

　　树⽊对于⼈来说有3个重要益处：树⽊给⼈类提供⽊材和其他产物;树⽊可以让⼈们乘凉;树⽊可有效地防⽌旱涝灾害。　　可惜的是，在世界上许多地⽅，⼈类没有认识到以上三个作⽤中，第三个是最重要的。⼈们急切于从树⽊上快速的谋取利益，于是⼤量的砍伐森林。

　　两千年之前，有⼀个富裕和强⼤的国家。为了建⽴帝国，砍倒了树⽊来造战舰。帝国建⽴了，但是，没有树⽊的⼟地变得荒芜和贫瘠。当帝国四分五裂的时候，整个国家发觉⾃⼰⾯临的是⽔灾和饥荒。 就算在政府认识到⾜够的树⽊储备的重要性时，有时却很难让⼈民也意识到这点。⼈们砍倒了树⽊，却疏于种植和照料树苗。因此，除⾮政府建⽴⼀套体制来控制或者教育⼈们，否则森林就会渐渐消失。

　　森林的消失不仅仅意味着树⽊的减少，还有更严重的后果。在有树的地⽅，树根不仅把⼟壤粉碎成⼩块，便于⾬⽔的渗⼊，还可以牢牢的抓住泥⼟，防⽌泥⼟被冲刷⾛。但是在没有书的地⽅，⾬⽔直接落在坚硬的地⾯，在⼟地表⾯流⾛。这不仅会导致洪⽔，⾬⽔还会带⾛庄稼赖于⽣长的肥沃的表层⼟。当所有的表层⼟被冲⾛之后，除了毫⽆价值的沙漠之外，什么也没有了。