高一英语阅读

Onewayofpreventingfloodsmaybebymakingrain!Thismaysoundratherstrange.Asweknow,heavyrainisthecauseoffloods,andinMalaysiamostofthefloodsarecausedbyannualmonsoon(季风),whichbringsheavyraintotheeastcoast.If,however,theraincouldbemadetofallintheChinaSea,therewouldbenomorefloodssincetheraincloudswouldnotreachtheeastcoast.

Isitpossibletomakecloudstogiveuptheirrain?Yes,itis,andin1973theNationalInstituteofScientificandIndustrialandResearchersuggestedthatitwouldbetried.TheInstituteknewofcoursethatitisnotpossibletomakeallcloudsgiveuptheirrain.Itcalculated,however,thatifthefrequencyofrainfallcouldbereducedby10％,andtheamountofrainthatfelleachtimecouldbereducedby15％,thetotalamountofflooddamagewouldbereducedby40％～50％.

Asyouprobablyknow,cloudsarecausedbyaircontainingwatervapor.Theairrisesand,sincewatervaporbecomeswaterwhenitcools,verytinydropsofwaterareformed.Sincethesedropsareverysmall,theyfloatintheair,andformacloud.Whenthecloudrises,however,thedropsbecomecolder.Becauseofthis,theyjointogetherandbecomebigdrops.Thebigdropsarenolongerabletofloatbecauseoftheirsize,andtheyfall.Asthyfall,theypickupmoredropsandbecomebigger.Thisisthecauseofrain.

59.Accordingtothepassage,onewayofpreventingfloodsis__________.

A.tobringheavyrain

B.tomaketherainclouds

C.tocausemonsooninthesea

D.tomaketherainfallintheseabeforeitreachesthecoast

60.WhichofthefollowingstatementsisNOTtrue?__________

A.InMalaysia,themonsoonoftenresultsinfloods.

B.Itislikelytocauseallcloudstogiveupalltheirrain

C.Thefrequencyofrainfallcouldbecutdown,andsocouldthemountofrainfall

D.Ifpeoplefoundwaysofreducingtheamountofrainfall,therewouldbelessflooddamage

61.Thethirdparagraphisconcernedwith_________.

A.howcloudscauserain

B.howrainisformed

C.howcloudsrisetheair

D.whywatervaporcanfloatintheair

62.Itcanbeinferredfromthispassagethat__________.

A.thehigh