托福TPO45独立写作题目+综合写作文本.pdf

在托福写作练习过程中，相信TPO材料中的作文题目都会是大家的首选练习材料。小编给
考生们带来了托福写作TPO45，希望可以帮助广大托福考生轻松备考托福。

托福TPO45综合写作

Didbees(atypeofinsect)existonEarthasearlyas200millionyears

ago?Suchatheoryissupportedbythediscoveryofveryoldfossilstructures

thatresemblebeenests.Thestructureshavebeenfoundinside200-

million-year-oldfossilizedtreesinthestateofArizonainthesouthwestern

UnitedStates.However,manyskepticsdoubtthatthestructureswerecreatedby

bees.Theskepticssupporttheirviewwithseveralarguments.

NoFossilsofActualBees

First,nofossilremainsofactualbeeshaveeverbeenfoundthatdateto

200millionyearsago.Theearliestpreservedbodyofabeeis100millionyears

old—onlyhalfasoldasthefossilizedstructuresdiscoveredinArizona.

AbsenceofFloweringPlants

Asecondreasontodoubtthatbeesexisted200millionyearsagoisthe

absenceoffloweringplantsinthatperiod.Today'sbeesfeedalmostexclusively

ontheflowersoffloweringplants;infact,beesandfloweringplantshave

evolvedaclose,mutuallydependentbiologicalrelationship.Floweringplants,

however,firstappearedonEarth125millionyearsago.Giventhebees’close

associationwithfloweringplants,itisunlikelybeescouldhaveexistedbefore

thattime.

StructuresLackSomeDetails

Third,whilethefossilizedstructuresfoundinArizonaaresomewhat

similartonestchambersmadebymodernbees,theylacksomeofthefiner

detailsofbees’nests.Forexample,chambersofmodernbeenestsareclosedby

capsthathaveaspiralpattern,butthefossilizedchamberslacksuchcaps.

Thatsuggeststhefossilizedstructuresweremadebyotherinsects,suchas

wood-boringbeetles.

Directions:Youhave20minutestoplanandwriteyourresponse.Your

responsewillbejudgedonthebasisofthequalityofyourwritingandonhow

wellyourresponsepresentsthepointsinthelectureandtheirrelationshipto

thereadingpassage.Typically,aneffectiveresponsewillbe150to225

words.

Question:Summarizethepointsmadeinthelecture,beingsuretoexplain

howtheycastdoubtonthespecificpointsmadeinthereadingpassage.

托福TPO45独立写作

2.Directions:Readthequestionbelow.Youhave30minutestoplan,write,

andreviseyouressay.Typically,