课下主题训练人与环境、人与动植物一、主题语基拓展练(一)主题词汇盘查(已会词汇，在□内打“√”；欠熟练词汇，多翻阅识记)①rough□②beach□③wave□④bay□⑤channel□⑥sand□⑦island□⑧harbour□⑨seashore□⑩coast□⑪action□⑫environmentally□⑬dolphin□⑭disappear□⑮habitat□⑯decrease□⑰existence□⑱severely□⑲survival□⑳protect□(二)主题词汇训练Ⅰ.选词填空(有两词多余)rough，wave，bay，channel，island，seashore，dolphin，habitat，harbour，action1．Helikedtolookforshellsontheseashore.2．Thepanda'snaturalhabitatisthebambooforest.3．Adolphinisamammalwhichlivesintheseaandlookslikealargefishwithapointedmouth.4．Livingjustafewblocksfromthebeach,Nataliecanseetheoceanandhearthewavefromherhouse.5．Anislandisapieceoflandthatiscompletelysurroundedbywater.6．TheChannelTunnellinksBritainwiththerestofEurope.7．Abayisapartofacoastwherethelandcurvesinward.8．Hismannersarerough,butheisakindmanatheart.Ⅱ.用所给词的适当形式填空1．Manywildanimalsarebattlingfortheirexistence(exist)．2．Twopeoplehavebeenseverely(severe)injuredintheaccident.3．Thelifeisagreatpuzzleandthesurvival(survive)isagreatestmystery!4．WhatcanwedotoprotecttheMiluDeerfromdisappearing(disappear)again?5．Since1945,theairforceshavedecreased(decrease)insize.6．Suchadietiswidelybelievedtoofferprotection(protect)againstanumberofcancers.7.Weshoulddoourbesttohelpputthisenvironmentally(environment)­friendlyplanintooperation.8.Weneedmoretimetoseehowthingsdevelopbeforewetakeaction(act)．二、主题语篇押题练Ⅰ.阅读理解Coralreefs(珊瑚礁)areanintegralpartofsealifeandsustainitbyprovidingshelterandhabitattovariousorganisms.Theyalsosupplyandrecyclenutrientsaswellasenableagrowingfishpopulation,alongwithotherspecies,forahealthyanddiverseecosystem.However,theriseinaveragewatertemperaturesduetoclimatechangehasresultedinmorefrequentandlong­time“coralbleaching(珊瑚白化)”eventsthatdamagetheirhealth,causingfishandotherseaspeciestoabandonthem.Inordertorestorethisdelicateecosystem,scientistsfromtheU.K.andAustraliaconductedastudythatinvolvedusingloudspeakersunderwaterneardamagedcoralreefstomakethemsoundhealthyandattractfish,potent