【Whatisatthetopofthew_______foodchain?是填world's还是whole?why?Whatisatthetopofthew_______foodchain?附全文：Wesometimessaythelionis"thekingofthejungle,(丛林)"becauseitisstrongerandmoredangerousthantheo】

　　Whatisatthetopofthew_______foodchain?是填world's还是whole?why?

　　Whatisatthetopofthew_______foodchain?

　　附全文：

　　Wesometimessaythelionis"thekingofthejungle,(丛林)"becauseitisstrongerandmoredangerousthantheotheranimals.Itcanrunfasterthanmostotheranimalsanditcanhunt(捕猎)thebest.Thelionisthehighestanimalinthelandfoodchain.Inthesea,thesharkisatthetopofthefoodchain.Itcan,swimfasterthanmostotherseaanimals.Itcanalsouseitsbigteethtocatchotherseaanimalsandeatthem.

　　Whatisatthetopofthew_______foodchain?Peopleare!Wearenotthebiggestorfastest,butwearethecleverest.Wecouldnotrunfasterthanmostanimals,soweinventedcarsandnowwecanmovethefastest.Wecouldnotfightbetterthanalion,soweinventedguns.Nowwecanhuntthebest.

　　People'sinventionsareclever,buttheycanbedangerous,too.Forexample,manyyearsagoinInnerMongolia,peopleusedgunstokillalotofwildwolves.Thewildwolvesusuallyeatwildrabbits.Butinrecent(近来的)years,thenumberofwildrabbitsisbecomingbiggerandbiggerbecausethenumberofwildwolvesisgettingsmallerandsmaller.Thewildrabbitscompeted(竞争)forthegrasswiththesheepandcows.Muchofthegrasslandbecamedesertbecauseitwasseriouslydestroyed(毁坏)bytherabbits.

　　Rememberthatweareapartofthefoodchain,soweareindanger,too!Ifweprotectanimals,weareprotectingourselves.