Unit2Welcometotheunit&Reading一、填空1.Thecompany_____(target)byanimalrightsgroupsforitsuseofdogsindrugtrialssince2018.2.Studentsarealwaysstruggling_____(balance)betweenstudyandafter-schoolactivities.3.You'dbettercalm_____andraiseyourvoicewhenyougiveaspeech.4.Parentsare_____(concern)abouttheirchildren'ssafety,dietandstudy.5.Whensheagreedtomarryhimhefelthehadachievedhisheart's_____(愿望).6.Thesnakeshedsitssonceayear.7.Aneissomeonewhopreparesabookorarticleforprintingbydecidingwhattoincludeandcheckingforanymistakes.8.Somechildrenfinditdifficulttotalkto_____(成年人).9.Doyouhavea_____(思想的)pictureofwhatitwilllooklike?10.Sincehisparentsdiedearly,hehadtoearnhisownlivingwhenhewasa_____(青少年).11.Theirwholelifewasaconstant_____(斗争)againstpoverty.12.Wehadan____(争吵)withthewaiteraboutthebill.13.Chinahas___________________(强调)theneedforcooperationamongcountriesalongtheBeltandRoad.14.Jacksaystohisparentsthatheisoldenoughtomakedecisions_________________hisown.15.Shekept_________________(wave)toherhusbandanddaughteruntiltheywereoutofsight.二、阅读理解OneofAustralia'smostfamousnaturalgifts,theGreatBarrierReefisblessedwiththebreathtakingbeautyoftheworld'slargestcoralreef.Thereefcontainsalargevarietyoflifeandover3,000reefsystemsandhundredsofislandswithsomeoftheworld'smostbeautifulbeaches.Becauseofitsnaturalbeauty,theGreatBarrierReefhasbecomeoneoftheworld'smostsought-aftertouristattractions.However,forthepastfewyears,thenewsaboutcoralshasbeendiscouraging.Currently,thereefisthreatenedbyclimatechange,tourism,waterpollution,andoverfishing.Agriculturalfertilizer(肥料)run-offfromAustralianfarmsalsohascausedthewidespreadgrowthofsea-plants,whichabsorbmostofthenutrients(养分)andleavelittleremainingforthelivingcoralreefandtheanimalsthatliveinit."Whathaschangedistheincreasingimportanceofclimatechangeasagreaterthreatthantheothers,"saysDavidWachenfeld,ascientistoftheGreatBarrierReefMarineParkAuthority.Coralreefsareextremelysensitive(敏感的)towarmingoceantemperatures.InareportonApril28,theAustraliangovernmentsaiditsetaside$500milliontohelpprotectcorals.Themoneywillbespentonreducingwaterpollutionfromagriculture,reefmonitoringandresearchonclimateinfluence.ThoughtheAustralianinvestmentiswelcome,itwillatbestonlydelaycoraldeaths.It'stoolittle,toolate,asaleadingcoral-scientistTerryHughesofJamesCookUniversityputit.Theonlywaytosavecoralsoverthelongtermistoslowdownclimatechange.Thatprocesswillrequireallcountriestoworktogethertofindthemosteffectivewayofcuttingemissions(排放)ofgreenhousegases.Themostrecentemissionsfigures,however,showthattheworldisfailingatthattask.Theyear2019hasseenanincreaseinglobalemissions.ThisweekinBonn,Germany,countriesaremeetingtodiscusshowtokeeptheirwordintheParisclimateagreement.Let'shopetheyhearaboutthesilentdeathoftheworld'scorals.1.Whydoestheauthorwritethetext?A.TointroducetheGreatBarrierReef.B.Toshowtheresultofclimatechange.C.ToofferwaysofprotectingtheGreatBarrierReef.D.TotellustheserioussituationoftheGreatBarrierReef.2.AccordingtoTerryHughes,theAustralianinvestmentinprotectingthecoralreefswas___.A.timelyB.unsatisfyingC.effectiveD.useless3.HowcanweprotecttheGreatBarrierReefeffectivelyinthelongrun?A.Byreducingtheemissionsofgreenhousegases.B.Bycuttingdownthenumberoftourists.C.Bysettingmorestrictrulesonoverfishing.D.Byinvestingmoreinclimateresearch.三、七选五HowtoEnjoyLifeAsaTe...