【阅读理解IfyoutravelbyairacrossthecentreofAfricaorsouth.Americayouflyoverforestsforthousandsofkilometres.Thesegreatforestsaretheoceansoftrees.Therearefullofthousandsandthousandsofd】

阅读理解

IfyoutravelbyairacrossthecentreofAfricaorsouth.

Americayouflyoverforestsforthousandsofkilometres.Thesegreatforestsaretheoceansoftrees.Therearefullofthousandsandthousandsofdifferentkindsofplantsandanimals.

Howevertheworldsforestsaregettingsmallerallthetime.Wearecuttingdownthetreesbecauseweneedwoodandweneedmorefarmland.Somepeoplesaythattherewillnotbeanyforestslikethesein20or30years.Whatwillhappeniftheydisappear?

Ifwecutdownourforestsalotofplantsandanimalswilldisappearfromtheworld.Inalotofplacesthenewfarmlandwillsoonlookliketheolddeserts.Cropswillnotgrowthere.Itwillnotrainveryoftenandtheweatherwillgetveryhot.Perhapstheclimateoftheworldwillchange.Thiswillbedangerousforeveryoneintheworld.Thatiswhywemusttakecareofourforests.

1．Thepassagemainlytellsusabout________.

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A．theimportanceoftakingcareofourplants

B．theresultofcuttingdownthetrees

C．thelocationsofgreatforests

D．thereasonsforformingthedeserts

2．Whichofthefollowingistrueaccordingtothepassage?

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A．AfricaandSouthAmericaaretheoceansoftrees.

B．Forestsarehomesfordifferentkindsofanimals.

C．Forestsareusuallyseveralsquarekilometreslarge.

D．Differentplantscan’tbefoundinthesameforest.

3．Theneedformorewoodandmorelandresultsin________.

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A．thechangeoftheworldclimate

B．thedisappearanceofmanyplantsandanimals

C．moredesertsandlessfarmland

D．alloftheabove

4．Whatwillhappenin20or30yearsinsomepeople’sview?

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A．We’llhavemoreandgreaterforests.

B．We’llhaveenoughlandtosupportourpeople.

C．We’llhavenoforestslikethoseinthecentreofAfrica.

D．We’llhaveenoughwoodtodosomecooking.

5．Thewriterthinks________.

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A．itdangerousforeveryonetocutdowntheforests

B．itnecessaryforeveryonetoprotecttheforests

C．itimpossibleforeveryonetotakecareoftheworld