Protect-sharks-(保护鲨鱼)英语课堂演讲PPT

Weknowsolittleaboutshark……whaleshark(鲸鲨)whaleshark(鲸鲨)whaleshark(鲸鲨)isthemostbiggestanimalintheworld.TheycanReachlengthsofupto50feet,Thisgentlegianthassmallteethlikewhalebaleen.Buttheyfeedonplankton（浮游生物），andtheyalwaysswimextremelyslow….SoYoucandealsafelywiththem...theyneverwanttobiteyou.Hammerheadshark(锤头鲨）Theyhavegreathammerheads,andtheymayaslongas4.5meters,Hammerheadsharkareaggressivehunters,feedingonsmallerfish,octopuses(章鱼）,squid（乌贼）,andcrustaceans(甲壳类动物）.Theydonotactivelyattackpeople。Whiteshake(大白鲨）BestknownfromthemovieJaws,thegreatwhiteisalarge,heavy-bodiedshark,about20feetlong,withlargebladeliketeeth.Widelythemost-fearedofsharks,greatwhiteattacksarerare.sharkshavebeenaroundforabout400millionyears.Theyareimportantfortheworld’senvironment.Sharksareoftenthoughtofascold-bloodedkillersthatpreyonhumans.However,theyarereallyhardlybitepeople,Thesharkmaymistakeapersonstandingorfloatinginwaterfornaturalprey.Thesharkgoesinforthekillbut,afteronetaste,usuallygivesuptheattack.Thechancesofbeingattackedbyasharkareverysmall,Infact,everyyearapersonwaskilledbysharklessthan5.apersonis30timesmorelikelytobekilledbylightningthanbyashark.Dogbitesare1,000timesmorecommonthansharkbites.Theyareincrediblyshyanimals.Itisveryhardtoapproachawhiteshark.ButpleasehavealookhowselfishweareSharkfinFinning,asitiscalled,meanscuttingthefinsoffaliveshark。Infactsharkfinhasverylittlenutritionalvalue,itisjustshark’scartilage(软骨).Sharkfin--------themostcruelfood!!!!!!!!!!!!SharksarefishedfortheirfinsandShark-finsoupisapopularfoodinsomeareas.Asmanyashundredsofmillionsharkscaughteachyear,mostofthetimejusttogetthefinsformakingsharkfinsoup.Sharkwascruellykilledallaroundtheworld.Ihaveaseriousproblemwithsharkfinsoup.Fishermenslice(切下)thefinoffthesharkandtossthecreaturebackintothewatertodie.Thishappenstomillionsofsharksaroundtheworld,andsomeofthosesharkpopulationsareendangered.SharksareindangerImagesomeonethinksthatyourearisyummy(美味的）andsliceyourearoffandthenthrowyouintotheseatobleedtodeath.Whatisyourfeeling??????Ithinkthatisthemostcruelthingintheworld!!!!!!Pleasesavesharks!!!!Tohelpsharkwhatcanwedo??????InChina……………China'smostpopularstar,YaoMingchampionedtheprogrampledgingtoneveragaineatsharkfinsoupAndinCostaRica(哥斯达黎加)SavingsharksmeanssavingourselvesSomanypeoplearehelpingsharkonearth.Iamverydelightedwithit.Ihopeeveryonedoyourbesttoprotectsharks.theyneedourhelpsomuch.weshouldrefusetoeatsharkfin.Andwhenyourrelativesorfriendswanttoeatsharkfin,stopthatasbestasyoucan.Sharkwillblessyou…………………..Ifyouareaanimal-protector,oryoujustintendtoknowmoreaboutshark.Youmustseethisdocumentary----sharkwater