86.beavailableto 使可得到 Theirreportsoftheclimate,theanimalsandbirds,thetreesandplants,andtheIndiansoftheWestweremadeavailabletoscientists. 87.beaware 意识到 I’msureyouareawarethatone-thirdofyourfinalgradeisbasedonyourlabwork. 88.bebareof Writtentobeperformedonastagebareofscenery,ThorntonWilder’splayOurTowndepictslifeinasmallNewEnglandcommunity. 89.bebeat beverytired精疲力尽 M:It’salmostmidnight.Whydon’tweleavethosedishesuntiltomorrow? W:Goodidea!I’mbeat. 90.bebehindinsth 延迟,落后 M:Hey,Larry.Wanna(=Wantto)meetafewofusforcoffeeinalittlewhile? W:Hmm,IwouldifIweren’tsofarbehindinthisreadingI’mdoingforhistory. 91.bebehindtime 落后 M:Boy,howquicklytechnologychanges!Somanypeoplehaveacomputerintheirhomenowadays. W:Iknow.Ifeelsobehindthetime. 92.bebesetwith Totroublepersistently;harass By1970,therailindustrywasbesetwithproblems. 93.bebetteroffdoingsth 境况好 Wouldn’tshebebetteroffgettingagoodnight’ssleepsoshe’llfeelfreshinthemorning? 94.beboundtodosth becertaintodosth It’sboundtorainsoon. Withoutaplentifulandconvenientsupplyofsomesuitablewritingmedium,developmentofthearithmeticprocesswasboundtobehampered. 95.bebroughtup MercyWarrenwasbroughtupwiththevaluesofgentility在上流社会的价值观影响下长大. 96.becapableof Snakesarecapableofgracefulmotionthroughouttheentirelengthoftheirrubberybodies. 97.becharacteristicof Geologistsfinditusefultoidentifyfossilsinarocksamplebecausecertainassemblagesofspeciesarecharacteristicofspecificgeologictimeperiods. 98.becloggedwith becrowdedwith Theroadsarecloggedwiththetrafficbetweenthesuburbsandthecitieseverymorningandevening. 99.becomingintoitsown 正在立国时期 AtatimewhenCanadawascomingintoitsown,theyfeltthatamajorfactor因素inthedevelopmentofastrongandhealthynationwasavital有生气的andrelevant实质性的art. 100.beconcernedwith LangstonHughes,aprolificwriterofthe1920’s,wasconcernedwiththedepictingtheexperienceofurbanBlackpeopleintheUnitedStates.