完形填空4.
二、完形填空
4.Lookatyourwatchforjustoneminute._1___thattime,thepopulationof
theworld__2___259.Perhapsyouthinkthatisn’tmuch.However,duringthenexthour,over15,540morebabieswill3_____ontheearth.
Soit___4____on,hourafterhour.Inoneday,peoplehavetoproducefoodforover370,000moremouths.Multiplythis__5___365.Justthinkhowmanymoretherewillbeinoneyear!What__6___inahundredyear?
Theincreasingpopulationmaybe__7___challengeoftheworldtoday.Theworld’spopulationisgrowing___8___.Twothousandyearsago,therewereonly2509peopleontheearth.Fourhundredyearsago,thenumberwasover500million.Atthebeginningof__10__century,theworld’spopulationwasabout1.7billion.In1970,thisnumberwasover3.6billion.In1990,itreachedmorethanfivebillion.Nowatthebeginningofthe21stcenturytheworld’spopulationhaspassedsixbillion.Peoplesaythatbytheyear2010,itmaybesevenbillion.Thatmeansthatinabout600years,therewillbestandingroomonlyontheearth.Eachpersonwillhaveonesquaremetreofspacetolivein.Therewillbehardlyenoughspaceforanybodyelse.
1.
A.
Before
B.
During
C.
Between
D.
In
2.
A.
increaseto
B.
increaseby
C.
increasedto
D.
increasedby
3.
A.
born
B.
beborn
C.
beenborn
D.
havebeenborn
4.
A.
goes
B.
went
C.
go
D.
going
5.
A.
to
B.
in
C.
by
D.
on
6.
A.
willhappen
B.
happen
C.
hashappened
D.
ishappening
7.
A.
thelarger
B.
thelarge
C.
thelargest
D.
largest
8.
A.
largerandlarger
B.
smallera
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