字典翻译 问答 小学 英语 阅读理解。Treesareusefultomaninthreeimportantways:theygivehimwoodandotherusefulthings,theygivehimcoolplaces,andtheyhelptostopdroughtandflood.Unluckily,inmanypartsoftheworld,manhasnotfound
问题标题：
阅读理解。Treesareusefultomaninthreeimportantways:theygivehimwoodandotherusefulthings,theygivehimcoolplaces,andtheyhelptostopdroughtandflood.Unluckily,inmanypartsoftheworld,manhasnotfound
问题描述：

阅读理解。
    Treesareusefultomaninthreeimportantways:theygivehimwoodandotherusefulthings,theygive
himcoolplaces,andtheyhelptostopdroughtandflood.
    Unluckily,inmanypartsoftheworld,manhasnotfoundthatthethirdofthesepointsisthemost
important.Manwantstomakemoneyfromtrees,sohehascutthemdowninlargenumbers,onlytofind
thatwithoutthemhehaslostthebestfriendshehad.Andalso,heisusuallytoocarelesstoplantandlook
afternewtrees.Sotheforestsslowlydisappear.
    Thisdoesnotonlymeanthatmanwillhavefewertrees.Theresultsareevenworse:forwherethereare
trees,theirrootsbreakupsoil(土壤)-maketherainin-andalsobind(粘合)thesoil,thus(这样)stoppingit
frombeingwashedawayeasily;butwheretherearenotrees,therainfallsonhardgroundandflowsaway,
causingfloodsandcarryingawaytherichtop-soil.Whenallthetop-soilisgone,nothingisleftbutuseless
desert.
1.Themostimportantpointsoftreestomanisthat________.
A.theyhelphimtomakemoney
B.theygivehimcool
C.theygivehimwoodandotherthings
D.theyhelphimtostopdroughtandfloods
2.Inmanyplacesforestsslowlydisappearbecause________.
A.manytreeshavebeencutdownbyman
B.newtreesarenotwelllookedafter
C.manhasnotpaidenoughattentiontoplantingtrees
D.alltheabove
3.Landbecomesdesertafteralltreesarecutdownbecause________.
A.rootsoftreesbreakupthesoil
B.therearetoomanyrainfalls
C.strongwindsbringalotofsand
D.therearenolongertreestokeeptherainandprotectthetop-soil.
4.Whichtitlebestfitsthepassage?
A.TreesandMan
B.TheFunctionofTreeWood
C.HowdoPeopledowithTrees
D.TheUsageofTreeRoots

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