爱华网托福IBT，官方指南OG，阅读例题解…
OG：THEORIGINSOFCETACEANS
OG:DESERTFORMATION
OG:EARLYCINEMA
OG:AGGRESSION
OG:ARTISANSANDINDUSTRIALIZATI…
OG:SWIMMINGMACHINES
OG:NIETEENTH-CENTURYPOLITICSI…
OG:THEEXPRESSIONOFEMOTIONS
OG:GEOLOGYANDLANDSCAPE
OG:FEEDINGHABITSOFEASTAFRIC…
OG:LOIEFULLER
OG:GREENICEBERGS
TPO1：GROUNDWATER
TPO1:THEORIGINSOFTHEATER
TPO1:TIMBERLINEVEGETATIONONM…
TPO3：ARCHITECTURE
TPO3：DEPLETIONOFOGALLALAAQUI…
TPO3:THELONG-TERMSTABILITYOF…
OnlineTest：OPPORTUNISTSANDCO…
OnlineTest：LASCAUXCAVEPAINTI…
OnlineTest:ELECTRICITYFROMWI…
TPO4：CAVEARTINEUROPE
TPO4：DEERPOPULATIONSOFTHEP…TPO4:PETROLEUMRESOURCE
TPO5:MINERALSANDPLANTS
TPO5:THEORIGINOFPACIFICISLA…TPO5:THECAMBRIANEXPLOSION
TPO6:POWERINGTHEINDUSTRIALRE…
TPO6:WILLIAMSMITHTPO6:INFANTILEAMNESIA
TPO7：THEGEOLOGICHISTORYOFTH…
TPO7:ANCIENTROMEANDGREECE
TPO7:AGRICULTURE,IRONANDTHEB…
TPO8:THERISEOFTEOTIHUACAN
TPO8:EXTINCTIONOFTHEDINOSAUR…
TPO8:RUNNINGWATERONMARS
TPO9:COLONIZINGTHEAMERICASVI…
TPO9:REFLECTIONINTEACHING
TPO9:THEARRIVALOFPLANTLIFE…
TPO10:CHINESEPOTTERYTPO10:VARIATIONSINTHECLIMATE
TPO10:SEVENTEENTH-CENTURYEUROP…
TPO11：ANCIENTEGYPTIANSCULTPUR…
TPO11：ORIENTATIONANDNAVIGATIO…
TPO11：BEGGINGBYNESTLINGSTPO12:WHICHHANDDIDTHEYUSE?
TPO12:TRANSITIONTOSOUNDINFI…TPO12:WATERINTHEDESERT
TPO13:TYPESOFSOCIALGROUPS
TPO13:BIOLOGICALCLOCKS
TPO13:METHODSOFSTUDYINGINFAN…
TPO14:CHILDRENANDADVERTISING
TPO14:MAYAWATERPROBLEMS
TPO14:PASTORALISMINANCIENTIN…TPO15:THEWARM-BLOODEDTURTLE
TPO15:GLACIERFORMATION
TPO15:MASSEXTINCTIONSTPO16：TRADEANDTHEANCIENTMID…
TPO16：DEVELOPMENTOFTHEPERIO…
TPO16：PLANETSINOURSOLARSYST…
TPO17：EUROPE'SEARLYSEATRADE…
TPO17:ANIMALSIGNALSINTHERAI…TPO17:SYMBIOTICRELATIONSHIP
TPO18:INDUSTRIALIZATIONINTHE…
TPO18:THEMYSTERYOFYAWNING
TPO18:LIGHTNINGTPO19:THEROMANARMY'SIMPACTO…
TPO19:SUCCESSION,CLIMAX,ANDE…
TPO19:DISCOVERINGTHEICEAGES
TPO20:WESTWARDMIGRATIONTPO20：EARLYSETTLEMENTSINTHE…
TPO20:FOSSILPRESERVATION
TPO21:GEOTHERMALENERGYTPO21:THEORIGINSOFAGRICULTUR…
TPO21:AUTOBIOGRAPHICALMEMORY
TPO22:SPARTINATPO22:THEBIRTHOFPHOTOGRAPHY
TPO22:THEALLENDEMETEORITE
TPO23:URBANCLIMATES
TPO23:SEVENTEENTH-CENTURYDUTCH…
TPO23:ROCKARTOFTHEAUSTRALIA…TPO24:LAKEWATER
TPO24:BREATHINGDURINGSLEEP
TPO24:MOVINGINTOPUEBLOSTPO25: THE SURFACEOF THE MARSTPO25:THEDECLINEOFVENETIANSHIPPINGTPO25:TPO25:THEEVOLUTIONARYORIGINOFPLANTS
TPO26:ENERGYANDINDUSTRIALREVOLUTION
TPO26:SURVIVALOFPLANTSANDANIMALSINDESERTCONDITION
TPO26:SUMERANDTHEFIRSTCITIESOFTHEANCIENTNEAREAST
TPO27:CRAFTSINTHEANCIENTNEAREASTTPO27:THEFORMATIONOFVOLCANICISLANDS
TPO27:PREDATOR-PREYCYCLES
TPO28:GROUNDWATER
TPO28:EARYSAHARANPASTORALISTSTPO28:BUCKRUBSANDBUCKSCRAPESTPO29:CHARACTERISTICSOFROMANPOTTERY
TPO29:COMPETITIONTPO29:THEHISTORYOFWATERPOWER
TPO30:ROLEOFPLAYINDEVELOPMENT
TPO30:THEPACEOFEVOLUTIONARYCHANGETPO30:THEINVENTIONOFTHEMECHANICALCLOCK
TPO31:SPECIATIONINGEOGRAPHICALLYISOLATEDPOPULATION
TPO31:EARLYCHILDHOODEDUCATIONTPO31:SAVANNAFORMATION
