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1、—轮复习阅读材料Unit20NewFrontiers阅读下列文章，完成阅读任务AInthefuture,theInternetwillbedifferentfi-omwhatitisnow.Therewillbemanymorewebsites.Itispredictedthatintheyear2100,therewillbehundredsofbillionsofwebsites.Thismeansthattheuseofsearchengineswillbecomemuch1(importance).Andtherewillalsobem
2、anymoresitesindifferentlanguages.Thismeansthatoneveryproperwebsite,therewillbe2(link).withthelanguageyouwant.AnotherpredictionontheInternetis3datatransmission(传输)speedwillincrease4(global).AccordingtoAkamaiTechnologies,theaverageglobaldatatransmissionspeedinlate20095(be)1.7m
3、egabitspersecond.ComparethattotherecordfordatatransmissionspeedsetbyBellLabs：100billionmegabitspersecond・6thatspeed,youcouldtransmit400DVDsworthofdataeverysecond・That's7enormousgapbetweenwhat'scurrentlypossibleandwhafscommerciallyavailable・Butastime8(pass).thecostsofproducin
4、gsuper-high-speednetworkswilldecrease・Inthefuture,peoplewillliveundertheseaandthehousingshortagewill9(solve).Therewillbelotsofglassdomes(穹状建筑物)underthesea,10allowpeopletolookallaroundintothesea・Airwillbeprovidedviaairpipeswhichleadtotheopenair.Youcantravelfromonedometoanothe
5、rviaakindofsubmarinewhichwillalsobemadeofglass.Thedomeswillbesobeautifulandtheviewundertheseawillbesoimpressivethatmanypeoplewillprefertoliveunderwater,andlesspeoplewillprefertoliveonland・Thiswillhaveapositiveeffectontheenvironmentonland.Inthefuturewewon'tuseoilorgasasenergy
6、anymore・Wewillmakeuseofsunlight,waterandwind.Carswillrunonwater.Justfillyourtankwithwater,andyoucandrivefurtherthanyoucoulddrivewiththesameamountofgasoline・Also,theexhaustwon'tbedamagingtotheenvironment,becauseit'lljustbewatervapor.Sothewatercyclewontchange,we'llkeepthesamea
7、mountofwaterontheearth,andwewon'trunoutofwater.Also,allenergywillbesuppliedbynaturalsources:sunlight,windandwater.Taskl:FillintheblanksTask2：Summarizethemainideaofthepassage.Task3:Choosethebestanswers1•WhatcanweknowabouttheInternetinthefuturefromthefirsttwoparagraphs?A.Itwil
8、lbemoreimportanttousesearchengines.B.MostofthewebsiteswillbedesignedinEngli
