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1、Unit8Students’book:VocabularyA.Guessingthemeaningsofwordsandphrases1.sendout(light)inalldirections2.understandfully3.aregreaterthan4.surrounded5.aplacetolivein6.makedifficulttosee7.breaksuddenlyintosmall8.pullup,withsomeeffort9.verysmallopeninginthepiecesskinthroughwhichsweatma
2、ypass10.discovering,learningaboutB.Lookingupwordsinadictionary1.clearlymarkingapersonorthingasdifferentfromothers2.striking,outoftheordinary,amazingtosee3.thinginnatureasitappearsorisexperiencedbythesenses4.rightofholding(land)5.veryrough,stormy6.likely,tendingto,accustomedto(h
3、ere)7.(theamountof)rainfall,snowetc.whichhasfallenontotheground8.breakupintosmallparticlesorpieces,comeapart9.smallpieceslikefinegrains10.aheavysilver-whitemetalwhichisliquidatordinarytemperaturesandisusedinscientificinstrumentssuchasthermometers水银11.upset,disturb12.padding(her
4、e)Workbook:TEXTIComprehensionB.Referenceversion:1.Welearnfromtheastronautsthatifwelook"'down"fromspace,wewillfindthemostconspicuous/outstandingcharacteristicofEarthtobethethicklayeroficewhichisAntarctica,whichsendslightoverthesouthernmostpartofthesouthernhemisphere.2.Onehundred
5、andsixtyyearsago,however,nobodyhadeverseenthisenormouscontinent,andhadcertainlynotwalkedonit.Eventodaywhetherwecanoccupyitornotisstilluncertain.Further,weknowrelativelylittleaboutit.3.ThedifferencesbetweentheArcticandtheAntarcticaregreaterthanthesimilarities.(or,Therearemoredif
6、ferencesthansimilaritiesbetweentheArcticandAntarctic.)TheArcticistightlysurroundedbythecontinentsofEurope,AmericaandAsiawheretherearepermanentpopulations;whereastheAntarcticisunconnectedtoanywhereelse,separatedfromthenearestlandbyvastareasoftheworld'sroughestseas.1.Undersuchcon
7、ditions,apersoncouldonlystandforafewseconds,andthatwasbyleaningforwardtoformanangleof45~withtheground.2.Itisnotsurprisingthatalthoughmandidnothesitatetoexploreandtakepossessionofmostoftheearthintheeighteenthandearlynineteenthcenturies,thecontinentinthefarsouthwasleftuntouched.T
8、EXTIIComprehensionAnswersforreference:SectionsMainIdea
