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人教九年级英语上册Unit8ItmustbelongtoCarla.SectionB(2a-2e)LeadinginItis6,700-kilometer-long(4,161-mile-long).HewhohasneverbeentotheGreatWallisnotatrueman.HowmuchdoyouknowabouttheGreatWall?MengJiangnu'sstoryisthemostfamousandwidelyspreadofallthelegendsabouttheGreatWallLinkingwordorphrasePurposeoflinkingwordorphraseso·expressingadifferenceas,because,since·givingachoicebut,however,though·expressingaresultnotonly…butalso·expressingtwothingshappeningatthesametimeor·givingreasonswhen,while·addinginformation2a.Matcheachlinkingwordorphrasewithitspurpose.mystery['mɪst(ə)rɪ]n.神秘，神秘的事物receive[rɪ'siːv]vt.收到；vi.接收however[haʊ'evə]adv.无论如何；不管怎样conj.然而；可是medical['medɪk(ə)l]adj.医学的；purpose['pɜːpəs]n.目的；打算prevent[prɪ'vent]v.阻止ancestor['ænsestə]n.始祖，祖先enemy['enəmɪ]n.敌人，仇敌；2b.Readthearticlebelowandunderlinethelinkingwordsandphrases.Stonehenge----CanAnyoneExplainWhyItIsThere?Stonehenge,arockcircle,isnotonlyoneofBritain’smostfamoushistoricalplacesbutalsooneofitsgreatestmysteries.Everyyearitreceivesmorethan750,000visitors.PeopleliketogotothisplaceespeciallyinJuneastheywanttoseethesunrisingonthelongestdayoftheyear.Formanyyears,historiansbelievedStonehengewasatemplewhereancientleaderstriedtocommunicatewiththegods.However,historianPaulStokerthinksthiscan’tbetruebecauseStonehengewasbuiltsomanycenturiesago.“TheleadersarrivedinEnglandmuchlater”,hepointsout.AnotherpopularideaisthatStonehengemightbeakindofcalendar.Thelargestoneswereputtogetherinacertainway.Onmidsummer’smorning,thesunshinesdirectlyintothecenterofthestones.Otherpeoplebelievethestoneshaveamedicalpurpose.Theythinkthestonescanpreventillnessandkeeppeoplehealthy.“Asyouwalkthere,youcanfeeltheenergyfromyourfeetmoveupyourbody,”saidonevisitor.NooneissurewhatStonehengewasusedfor,butmostagreethatthepositionofthestonesmustbeforaspecialpurpose.Somethinkitmightbeaburialplaceoraplacetohonorancestors.Othersthinkitwasbuilttocelebrateavictoryoveranenemy.Stonehengewasbuiltslowlyoveralongperiodoftime.Mosthistoriansbelieveitmustbealmost5000yearsold.Oneofthegreatestmysteriesishowitwasbuiltbecausethestonesaresobigandheavy.In2001,agroupofEnglishvolunteerstriedtobuildanotherStonehenge,buttheycouldn’t“Wedon’treallyknowwhobuiltStonehenge,”saysPaulStoker.“Andperhapswemightneverknow,butwedoknowtheymusthavebeenhardworking---andgreatplanners!”语法重点一1.Stonehenge,arockcircle,isnotonlyoneofBritain’smostfamoushistoricalplacesbutalsooneofitsgreatestmysteries.巨石阵、岩石圈,不仅是英国最著名的历史古迹之一也是它的一个最大的奇迹之一notonly…butalso用于连接两个表示并列关系的成分，着重强调后者，其意为“不但……而且”；其中的also有时可以省略。如：Shenotonlyplayswell,butalsowritesmusic.Notonlymenbutalsowomenwerechosen.HeworksnotonlyonweekdaysbutonSundaysaswell.注意：若连接两个成分作主语，其谓语通常与靠近的主语保持一致。如：Notonlyyoubutalsohehastoleave.若连接两个句子，notonly后面的句子要用倒装如：Notonlydidhespeakmorecorrectly,buthespokemoreeasily.2.Theythinkthestonescanpreventillnessandkeeppeoplehealthy.他们认为这些石头可以预防疾病,使人保持健康。语法重点二prevent作及物动词，可是直接带宾语，表示“阻止，阻挠”的意思；常构成：protect...from...表示“保护……不受……侵袭”；preventsb.fromdoingsomething.阻止某人做某事，在主动语态中from可以省略，被动语态中不行。如：Whatcanwedotopreventthediseasespreading?Theseregulationsareintendedtopreventaccidents.Hepreventedtheboyfromclimbingthetree.Thegovernmentistakingmeasurestopreventthewildlifefrombeingkilled.3.“Andperhapswemightneverknow,butwedoknowtheymusthavebeenhardworking---andgreatplanners!”保罗•斯科特说“也许我们可能永远不会知道,但我们知道他们一定是勤奋——伟大的计划!”语法重点三musthavebeendoing:表示肯定的猜测，肯定某人一直在做的事，并且猜测这种动作,或者行为一直持续到现在。如：Hemusthavebeentryinghisbesttostudy.Sheissotired.Shemusthavebeenworkingallthemorning.如：Sincetheroadiswet,itmusthaverainedlastnight.Theymusthavelearnt5000Englishwordsbytheendoflastterm,hadn'tthey?Theroommusthavebeencleanedyesterday,wasn'tit?musthavebeendone是musthavedone的被动形式，是对过去发生的动作最有把握的猜测，意思是“一定”。MysteriesaboutStonehengeWhatStonehengemighthavebeenusedfor…Whobuiltit?2c.Readthearticleagainandcompletethechart.Whatwasitbuilt?Howwasitbuilt?.asatemplewhereancientleaderstriedtocommunicatewiththegods..akindofcalendar..haveamedicalpurpose..mightbeaburialplaceoraplacetohonorancestors..celebrateavictoryoveranenemy2d.Completethesentencesusingthewordsfromthechartin2aonpage62.1.MidsummerdayisinJune____alotofpeoplegotoStonehengeduringthismonth.2.ThesunshinesstraightintothecenterofStonehenge_________thestoneswereputinaspecialposition.sobecause3.Somepeoplethinktherockscan________stoppeoplefrombecomingill_________keepthemhealthy.4.Wedon’tknowwhobuiltStonehenge______howitwasbuilt.5.HistoriansthinkStonehengewasbuiltabout5000yearsago;______theyarenotsure.notonlybutalsoorhoweverTESTYOU1.—Howdoyoulikethetwopairsoftrousers?—Theydon'tfitmewell.Theyare___toolong__tooshort.A.notonly;butalsoB.both;andC.neither;nor2.—Whatcanwedotopreventbirdflufrom____?—Trynottobuyoreatchickensthathavenotbeenchecked.A.spreadsB.spreadingC.tospread3.—Whenareyougoingthere?—_____thismonth_____nextmonth.A.Notonly;butalsoB.Both;andC.Neither;nor4.We_______Englishsince2011.A.havelearnedB.havebeenlearningC.havebeinglearning问题探究1.根据汉语意思完成句子。汤姆肯定是一直在打篮球。Tom__________________________basketball.2.同义句转换：—Ireceivedaletterfromhimyesterday.—________________________________.3.Theboy____