2019年6月大学英语四级真题完整版(第3套).doc

文档介绍：2019年6月大学英语四级真题完整版（第3套）
PartIWriting(30minutes)
Directions:Forthispart,youareallowed30minutestowriteanewsreporttoyourceglobe,occupyingeveryoceanbasinontheplanet,,differentpopulationsofkillerwhaleshavehadtolearndifferenthuntingtechniquesinordertogaintheupperhandovertheirlocalprey(猎物).This,inturn,hasamajoreffectontheirdiet,leadingscientiststo__35__thattheabilitytolearnpopulation-specifichuntingmethodscouldbedrivingtheanimals'geneticdevelopment.
acquired
adaptations
brutal
deliberately
expressed
extends
habitats
humble
image
J)literally
K)refined
revolves
M)speculate
N)structure
O)thrive
SectionB
Directions:Inthissection,.
Livingwithparentsedgesoutotherlivingarrangementsfor18-to
34-year-olds
Broaddemographic(人口的)shiftsismaritalstatus,,andanewPewResearchCenteranalysishighlightstheimplicationsofthesechangesforthemostbasicelementoftheirlives—,forthefirsttimeinmorethan130years,adultsages18to34wereslightlymorelikelytobeliving