Itwouldbedifficulttofindoneherring(鲱鱼)swimmingaloneinthesea.Herringalwaysswimingroupsc1schools.Sometimeshundredsofthousandsofsmall,silveryherringswimtogether,coveringthesurfaceoftheseaformiles.
Inaschoolofherring,allthefishareaboutthesamesizeandage.Sincen2ofthefishisolderorwiserthantheothers,thereisnoleader,or“teacher”.Allthefishisinaschoolswiminthesamed3andatthesamespeed.Whenoneturns,theyallturn.Whenthereisdanger,thefishmoveclosertogether.
One4thatherringswiminschoolsisthattheyaremoreprotectedfromdanger.Herringhavenodefenseweapons(防卫武器)tousea5theirmanyenemiesinthesea.Whentheycrowdedtogether,thefishinsidethegrouparep6bythebodiesoftheonesontheoutside.Aschoolofcloseswimmingherringmaylooklikeas7,giantfish.Someenemiesmaybefrightenedawaybythelargeshape.
Astheherringg8larger,theschoolisattackedbylarger,hungryfish.Eachtimesomeherringarelost,butmanysurvive.Thesurvivorsstayt9insmallerschoolsorjoinanotherschoolofherring.
Femaleherringdonotlayeggsu10theyarethreeorfouryearsold.Eachmaturefishcanlayasmanyas40000eggs.Fromtheseeggscomesomenewschoolsofherringtoreplacethedisappearingolderschools.
【推荐1】Theamazingplanet
TheEarthisanamazingplanet!
Someplacesareveryhot,liketheareasneartheequator.Someare1(freeze)cold,liketheNorthandSouthPoles.Thereare2(field)andmountains,riversandseas,forestsanddeserts.ThehighestmountainonEarthisover8,800metresabovesealevel.Andthe3(deep)partoftheseaismorethan10,000metresdown.
TheplantsonEartharewonderful4manydifferentways.Thetallesttreesintheworldcanreachover100metresin5(high).Thesmallestplantisassmallasagrainofrice.
TheEarthishome6millionsofanimals.Some,liketigersandlions,liveonland.Otheranimals,likebirds,enjoythewideopensky.Bigbluewhalescalltheseahome,alongwithmanyamazingfish.Frombearstobirds,frombutterfliestoseahorses,animalsmakeourplanet7(love)andinteresting.
Andwhat’smore,theEarthprovides8(we)withallthethingsweneed,suchasfood,water,airandenergy.Itisourhomeand9onlyplanetweknowthatsupportslife.Let’sexplore,learnabout10takecareofourhome.
【推荐2】DoyoulikecolaHowo1doyoudrinkcolaOnceaweek,threetimesaweekoreverydayM2childrenlikecola,butit’sbadforhealth.Colaiss3,becauseithassugarinit.It’sanu4drinkandhavingtoomuchsugarcanmakepeoplegetfat.Drinkingoneb5ofcolaeachdaycanmakeusgetaboutfifteenpounds(磅)eachyear.Andbecausethesugarincolacanmakeusfeelfull,wecan’teatmuchhealthyfood,suchasfruitandvegetables.Andcolaisbadforourt6andbones(骨头).
Drinkwater,please.Waterisveryi7toourbodyanditkeepsushealthy.Wegetwaterfromdrinksandfood,especially(特别是)fromfruitandvegetables.Butwestillneedtodrinke8watereveryday.Peoplesaythatweneedtodrinkeightglassesofwatereveryday.Ifyoudon’tliketodrinkwaterwithnothinginit,youcanaddalittlefruitjuiceinittomakeitd9.Inordertohaveahealthylifestyle,weshouldcareaboutwhatwedrink.
Sopleaseremember:drinkl10colaandmorewater.
Englishlanguageisalwayschanging.Englishwordsdon’tstay1same.Newwordsareneededfornewideasandnewinventions.Differentwordscomeintouse,oroldwordsareused2anewway.
Englishcanbechanged3borrowingwordsfromotherlanguages.Theword“tomato”was4（borrow）fromMexicoand“tea”camefromChinaandsoon.Nownewspaceandsciencewordsarebeingborrowedfromothercountries,too.
Newwordsareformedby5（add）twowordstogether.“Countryside”and“earthquake”aremadeupoftwo6（part）.
Sometimesnewwordsare7（short）formsofoldwords.Theword“photo”8（make）from“photograph”bycuttingofftheendofthelongerword,“planewasmadebycuttingoffthefrontpartof“airplane”.
Thenames9peopleandproductscanbecomenewwords,too.Our“sandwich”wasnamedafteramannamedSandwich.And“cellulosetape”（透明胶带）wasanamegivenbythecompanythat10（one）madetheproduct.
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