更新时间：2018-07-29 16:49作者：李天扬老师
58.Thechangebagswereput_____.
A.onthebusesB.atthebusstopsC.underthedesksD.neartheparks
59.Ittook_____thewholeweekendtomakethechangebags.
A.theparentsB.theteachersC.thepassengersD.thefourboys
60.WhichofthefollowingisTRUEaccordingtothepassage?
A.Theideaofsmallchangebagscamefromfourboys.
B.Thepassengersrefusedtoputmoneyinthebags.
C.Theteachersgaveupwhenthebagsweretaken.
D.Thesmallchangedidn’thelpthepassengersmuch.
61.What’sthemainideaofthispassage?
A.MakingchangebagsisdifficultB.Pocketmoneycanbehelpful
C.GivinghelpbringsushappinessD.Everycoinhastwosides
D
Whenacomputerworksonagroupofprograms,itcangetveryhot.Coolingthecomputercancostalot.Sosomescientistswonderwhatwouldhappeniftheheatfromthecomputercouldbeused.
LargeInternetcompanies(公司)suchasGoogleandMicrosofthavethousandsofcomputers.Asthesecomputersdealwithinformation,theyproducelotsofheat,sotheyneedhugecoolingsystems(系统).Thesesystemssendtheheatintotheair.