【阅读理解.Itmaybestrangethatthreefourthsoftheworldiscoveredwithwater,butwestilldon’thaveenoughflesh,cleanandsafedrinkingwater.Mostoftheearth’swaterissaltwateroftheseas.Lessthan3％ofthewaterinth】

阅读理解. Itmaybestrangethatthreefourthsoftheworldiscoveredwithwater,butwestilldon’thaveenough

flesh,cleanandsafedrinkingwater.Mostoftheearth’swaterissaltwateroftheseas.Lessthan3％of

thewaterintheworldisflesh.68.7％offleshwaterisintheformoficeinthepolarareas,andmuchfreshwaterispollutedanddangeroustouse.Pollutedwaterusuallycausesdeathamongchildrenunderfivein

thepoorcountries.

Insomecountries,womenandchildrenspendmuchoftheirtimegoingouttocollectwater.Theyoftenwalkmanykilometerseachdaytogetjustenoughwaterfortheirfamiliestocook,washanddrink.And

theycan’tcarrybackmuchbecausetheyhavetowalkoverrough(坑洼的)fieldsandcarryaheavybucket(桶).

Childrenhavetohelptheirmotherscarrywater,sotheymaynotbeabletogotoschool,ortheymay

besotiredwhentheygettherethattheyhavedifficultystudying.Theymayevenhavetospendthewhole

daywithoutdrinkinganywaterastheremaynotbeanycleanwateratschool,either.

AlargepartofUNICEF’sworkisbringingsafewatertopeopleinneedofit.Lastyear,UNICEFbuiltupalmost90,000watersystems(系统)for20millionpeople.Itjustwantstohelpmorepeoplekeepalive.Awell(井)maymeanthedifferencebetweenlifeanddeath.1.Whichmaynotbethereasonfornothavingenoughfreshwater?

A.Mostofthefreshwaterispolluted.

B.Muchofthefreshwaterisintheformofice.

C.Mostofthewaterissalty.

D.Therearetoomanypeopleontheearth.

2.Thewriterwantstotellus_______throughthesecondandthirdparagraphs.

A.watercanspreaddiseases

B.therewouldbenolifewithoutwater

C.waterisImportant

D.itishardforsomepeopletogetwater

3.WhichofthefollowingisNOTtrue?

A.About70％oftheearthiscoveredwithwater.

B.Insomecountriespeoplehavetogoalongwaytogetwater.

C.Ifchildrenaren’tabletogetwaterhome,theycan,tgotoschool.

D.UNICEFistryingitsbesttohelppeopleinneedofwater.

4.Thelastsentencemeansthat_______.

A.deathisdifferentfromlife

B.awellcansavesomeon