21世纪大学英语第四册课后习题答案(全).pdf

Unitone

TEXTA

II

1.Hedefinesgreatnessasthelastingcontributionwhichapersonmakesorhasmade

tohumancivilization.

2.TheexampleofChurchillshowstheimportanceofpersistenceanddedicationin

achievinggreatness.

3.Firstbornsandonlychildrentendtomakegoodleadersintimesofcrisis,but

middle-bornchildrenarebetterpeacetimeleaders.

4.A20thcenturypoliticianshouldbeaneffectivepublicspeakerandasocialperson.

5.Intelligenceseemstobelessimportantthanotherfactors,suchastheabilityto

communicateeffectively.

6.Theabilitytoovercometraditionalwaysofthinkingisalsocrucial.

7.Theysimplydon’tdevotetheamountoftimerequired.

8.Thestudyshowedthatenjoyingone’sworkisthebestformofmotivation.

IV

1.chat2.acknowledge3.motivated4.charcteristic

5.despite6.influential7.cited8.obstacle

9.intrinsic10.criteria11.obsession12.innate

13.contribution(s)14.contemporary15.submitted16.morale

V

1.leftbehind2.rise3.madehistory4.wereendowedwith

5.putupwith6.goingnowhere7.ifocuseson8.bebuilton

9.putin10.comeupwith11.takecharge12.set...apart

VI

efficiencyemergencyfluencyfrequency

proficiencytendencyurgencysufficiency

1.fluency2.proficiency3.emergency4.Efficiency

5.tendency6.frequency

VII

1.Forsomestudents,itsnotthattheydontputinenoughtime—itsthattheydont

havegoodstudyhabits.

2.Childrenperformdifferentlyatschool.ItsnotthattheyhavedifferentIQs—its

thattheyarebroughtupindifferentenvironments.

3.Thecompanyisnotveryproductive.Itsnotthatitsstaffarenttalented—itsthat

theirenergyhasntbeenchannel