Theflooroftheoceanhavemanyrichesthatcanbeusedbyman.Oilandchemicalsandmineralsalreadyaretakenfromthesea.Byusingnuclearenergy,oceanwatercanbeturnedintofreshwaterbytakingthesaltout.Inthenearfuture,itispossibleforhumanbeingstoproducefoodfromfarmsunderthesea.Foodgrownintheseacouldhelptomeettheneedsofpopulationallovertheworldwhichisincreasingfast.Thousandsofpeoplegohungryeveryday.Abouttentofifteenpercentoftheworld’speopledonothaveenoughfood.Somescientistsbelievethatsomedaytheseawillbeusedtomakeelectricpower.Thiswouldhelptomeettheneedformorepowerfortheworld’sindustries.Thedecreasingsupplyofcoal,oilandgasshowsthattheneedtofindnewkindsofpowerisurgent.

36.Humanbeingshavealreadymadeuseof__________.

A)unclearenergyinthelabunderthesea

B)saltwaterresourcesasfreshwater

C)minerals,chemicalsandoiltakenfromthesea

D)farmsunderthesea

37.Wecanlearnfromthepassagethat_________.

A)therearenowmanyfarmsundertheseaproducingfood

B)morethanonetenthoftheworld’speoplearesufferingfromhunger

C)thesupplyofoil,gasandcoalareincreasingrapidlythroughouttheworld

D)itisunnecessaryformantomakefulluseoftherichesofthesea

38._____________canbeusedtoturnsaltwaterintofreshwater.

A)Nuclearpower

B)Electricpower

C)Newkindsofpower

D)Chemicalsandmineralstakenfromthesea

39.Itisurgenttofindnewkindsofpowerbecause__________.

A)theworld’spopulationisincreasingdaybyday

B)scientistsareworded(宣告)abouttheideaofmakingfulluseoftheseaintorealities

C)nuclearenergycannotmeettheneedformorepowerfortheworld’sindustries

D)thesupplyofcoal,oilandgasisdecreasingwhiletheneedfortheworld’sindustriesisincreasing

40.Thebesttitleofthepassageis___________.

A)ToFindNewKindsofPowerIsUrgent

B)TheIncreasingoftheWorldPopulation

C)RichesoftheSea

D)ManCanFarmundertheSeaintheFuture