新教材英語(yǔ)選擇性學(xué)案Unit5第三課時(shí)DevelopingideasPresentingideas

第三課時(shí)Developingideas&PresentingideasⅠ.詞匯初探1．mythn.神話2．legendn.傳奇；傳說(shuō)3．detectv．發(fā)現(xiàn)；察覺(jué)→detectiveadj.偵探的；n.偵探，警探→detectionn.偵查；探測(cè)4．waspn.黃蜂5．pesticiden.殺蟲(chóng)劑；農(nóng)藥6．rootn.根7．linkv.把……聯(lián)系起來(lái)；連接8．fungusn.真菌→fungaladj.真菌的Ⅱ.短語(yǔ)互譯1．畢竟；終究after_all2．把……趕走drive_away3.少量的tiny_amounts_of4．和；也as_well_as5．municatewith和……交流6．insomeways在某些方面7．steal...from從……偷8．callforhelp呼救Ⅲ.經(jīng)典句式1．AlexandertheGreatandMarcoPoloweresaidto_have_visitedsuchatreeinIndia.(P56)據(jù)說(shuō)亞歷山大大帝和馬可·波羅在印度見(jiàn)到過(guò)這樣一棵樹(shù)。2．Itappearsthatplantscanmunicateafterall.(P56)似乎植物可以交流。3．Scientistshopetolearnmoreaboutthisplantwarningsystem,so_thatwecanuseittogrowcropswithoutpesticides.(P56)科學(xué)家們希望更多地了解這種植物預(yù)警系統(tǒng)，以便我們能夠利用它來(lái)種植不用殺蟲(chóng)劑的作物。4．Usingthewoodwideweb,plantscanshareinformationandevenfoodwitheachother.(P57)利用樹(shù)聯(lián)網(wǎng)，植物可以彼此共享信息甚至食物。5．Maybeonedaywewillknowenoughaboutplantmunicationto_be_ableto“talk”withthemourselves.(P57)也許有一天，我們會(huì)對(duì)植物的交流有足夠的了解，能夠自己和它們“交談”。Ⅳ.語(yǔ)篇理解StepⅠ.ReadthetextonPage56—57andchoosethebestanswers.1．Whichofthefollowingstatementsiswrongaccordingtothepassage?A．Manycultureshavestoriesoftalkingtrees.B．AlexandertheGreatandMarcoPoloweresaidtohavevisitedsuchatree.C．Treescanmunicatewithanimalsandpeopleinsomemodernstories.D．Weusedtobelievethatthereweretalkingtrees.答案：D2．Modernresearchshowsplantscanmunicateusingsomethingexcept________.A．chemicals B．foodC．sound D．woodwideweb答案：B3．Whichplantsmunicatebymakingnoisesaccordingtothepassage?A．Cornandchilli. B．Cornandwheat.C．Wheatandchilli. D．Chilliandrice.答案：A4．Somepinetreescanmunicatewitheachotherby________.A．sound B．chemicalsC．thefungalnetwork D．light答案：C5．Fromthepassage,wecaninferthat________.A．talkingtreesaremerelylegendsB．peoplehavelongbeenexploringthesecretlanguageofplantsC．wecanmunicatewithplantsourselvesD．itisimpossibleforthewoodwidewebtobeattacked答案：BStepⅡ.Fillintheblanksaccordingtothetext.Wehavehadabeliefthattalkingplantsarefantasy,butnewresearchhasrevealedsomething__1__(amaze):itappearsthatplantscanmunicateinthreeways.First,someplantsusechemicals__2__(municate)witheachother.Forexample,whenabeanplantgets__3__(attack)byinsects,itwillreleasetinyamountsofchemicalsfromtheleavesthat__4__(eat)．Thisislikeawarningtootherbeanplants.__5__(surprise),plantsalsousesoundtomunicate.Someplantsalso“l(fā)isten”tothenoisesfromotherplants.Achilliplantcantellifaneighbouringplantishelpful__6__unfriendly.Mostsurprisinglyofall,plantshave__7__amazingsystemofmunicationcalled“woodwideweb”.Usingtheweb,plantscanshareinformationandevenfoodwitheachother.__8__，thewoodwidewebhasitsownversionof“cybercrime”．Plantscanstealfood__9__eachotherorspreadpoisonstoattackotherplants.Scientistswilllearnhowtocreatea“firewall”tohelppreventtheseattacks.Scientistsarelearningmoreaboutthesecretways__10__plantstalktoeachother.Maybeonedaywewillbeableto“talk”withplants.1．a(chǎn)mazing2.to_municate3.attacked4.are_being_eaten5．More_surprisingly6.or7.an8.However9.from10．in_which1eq\a\vs4\al(linkvt.&vi.連接；聯(lián)系n.環(huán)；聯(lián)系；紐帶)[教材原句]Mostsurprisinglyofall,plantshaveanamazingsystemofmunicationthatcanlinknearlyeveryplantinaforest.(P56)最令人驚訝的是，植物有一個(gè)驚人的通訊系統(tǒng)，幾乎可以連接森林中的每一種植物。eg.ThisoldSilkRoadlinkedChinawiththeWestinancienttimes.這條古老的絲綢之路在古代把中國(guó)和西方連接了起來(lái)。[歸納拓展](1)link...to/with...將……和……聯(lián)系或連接起來(lái)link...together把……連接在一起(2)linkupwith...與……聯(lián)合；使與……銜接linkup連接；結(jié)合alinkbetweenAandBA與B之間的聯(lián)系alinkwithsth./sb.與某事/某人的聯(lián)系(3)表示“把……和……連接起來(lái)”的短語(yǔ)還有connect...to/with/and...join...to/and...[即時(shí)鞏固]單句語(yǔ)法填空/完成句子①Thenewbridgewilllinktheislandtothemainland.②Istherealinkbetweensmokingandlungdisease?吸煙與肺部疾病之間有關(guān)系嗎？③Thereisconvincingevidencethatskincanceris_linked_toexposuretothesun.有令人信服的證據(jù)表明皮膚癌與暴露在陽(yáng)光下有關(guān)。2figuren.畫(huà)像；身材；數(shù)字；體形v.估計(jì)；計(jì)算；認(rèn)為[教材原句]Whatfigureofspeechisbeingusedwhentheplantsaredescribedascallingforhelp？(P58)當(dāng)植物被描述為需要幫助時(shí)，使用的是什么語(yǔ)言代碼？[歸納拓展](1)keepone'sfigure保持體形haveagoodfigure身材好apolitical/publicfigure一位政治/公眾人物(2)figureon打算；指望figurein算入，包括進(jìn)figureout理解；想出；計(jì)算出[即時(shí)鞏固](1)寫(xiě)出下列句子中figure的含義①Shehasagoodfigure.身材，體形②By2014,thisfigurehadrisento14million.數(shù)字③ChairmanMaoisanimportantpoliticalfigure.人物④Ifiguredthathewasdrunkandshouldn'tbeallowedtodrinkmore.認(rèn)為(2)完成句子①HowdoesMarymanagetokeep_her_figurewhensheeatssomuch?瑪麗吃得這么多，究竟是怎樣保持優(yōu)美身材的？②Wefigure_onyouringearlytohelpus.我們指望你們?cè)缧﹣?lái)幫助我們。③Ican'tfigure_outwhatitisthatmakeshimsodepressedrecently.我琢磨不透最近什么事讓他情緒這么低落。3eq\a\vs4\al(signalvi.&vt.發(fā)信號(hào)；示意n.信號(hào))[教材原句]Bees“dance”tosignaltootherbeesthattheyhavefoundfood.(P58)蜜蜂“跳舞”向其他蜜蜂發(fā)出它們找到食物的信號(hào)。[歸納拓展](1)signaltosb.todosth.示意某人做某事signal(tosb.)that...示意(某人)……(2)givesignals/asignal(tosb.)(向某人)發(fā)信號(hào)atrafficsignal交通信號(hào)sendoutasignal發(fā)出信號(hào)[名師點(diǎn)津]signal指為某一目的而有意發(fā)出的信號(hào)；symbol指象征或表達(dá)某種深邃意蘊(yùn)的特殊事物；sign普通用詞，指人們公認(rèn)的事物的標(biāo)志，也可指某種情況的征兆；mark普通用詞，含義廣泛。既可指為便于辨認(rèn)而有意做的標(biāo)記，又可指自然形成的標(biāo)記或有別于其他事物的特征。[即時(shí)鞏固]單句語(yǔ)法填空①Assoonashesatdownatthetable,hesignaledtothewaitertobringthemenu.②Thepolicemansignalledthedriverto_stop(stop)hiscarbyraisinghishand.③Hestoodup,signaling(signal)tothepoliceofficerthathehadfinishedtalkingwithhisclient.1eq\a\vs4\al(afterall畢竟；終究)[教材原句]Itappearsthatplantscanmunicateafterall.(P56)似乎植物可以交流。[歸納拓展]atall究竟(在問(wèn)句、條件句及肯定句中表強(qiáng)調(diào))not...atall根本不；一點(diǎn)也不inall總共aboveall首先；最重要的是allinall總的來(lái)說(shuō)；總而言之firstofall首先(強(qiáng)調(diào)次序)[即時(shí)鞏固]用all的短語(yǔ)補(bǔ)全句子①Bobthoughthecouldn'tgotothepartybecausehehadtowriteareport，buthewentafter_all.②Wemustwork，andabove_allwemustbelieveinourselves.③First_of_all，letmeintroducemyselftoyou.④Therearethirtyin_allinthepartywhowilltraveltoLanzhou.2eq\a\vs4\al(tinyamountsof少量的……)[教材原句]Theplantreleasestinyamountsofchemicalsfromtheleavesthatarebeingeaten.(P56)這種植物從被吃掉的葉子中釋放出微量的化學(xué)物質(zhì)。[歸納拓展]asmall/largeamountof＋不可數(shù)名詞少/大量的……amountsof＋不可數(shù)名詞大量的……theamountof＋不可數(shù)名詞……的數(shù)量amountto合計(jì)；總共；相當(dāng)于[名師點(diǎn)津]ahugeamountof用來(lái)修飾不可數(shù)名詞，“ahugeamountof＋不可數(shù)名詞”作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞用單數(shù)；“hugeamountsof＋不可數(shù)名詞”作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞用復(fù)數(shù)。[即時(shí)鞏固]單句語(yǔ)法填空/完成句子①Ahugeamountofoilwas(be)ontheroadyesterday,theeffectsofwhicharenotclear.＝Hugeamountsofoilwere(be)ontheroadyesterday,theeffectsofwhicharenotclear.②Atthestartoftheyear，foreignerslivinginItalyamounted_to4.56million.今年年初，居住在意大利的外國(guó)人數(shù)量達(dá)到了456萬(wàn)。3eq\a\vs4\al(driveaway趕跑；驅(qū)車(chē)離開(kāi))[教材原句]Someofthesechemicalsdriveinsectsaway.Othersattractinsects—thewasps.(P56)其中一些化學(xué)物質(zhì)會(huì)驅(qū)走昆蟲(chóng)，另一些則會(huì)吸引昆蟲(chóng)——黃蜂。eg.Aftertwoandahalfyears,themotherdrovetheyoungpandaaway.兩年半后，熊貓媽媽把小熊貓趕跑了。[歸納拓展](1)driveoff開(kāi)車(chē)離開(kāi)drivesb.crazy/mad把某人逼瘋drivesb./sth.outofsth.把某人/物趕出去(2)goforadrive去兜風(fēng)[即時(shí)鞏固]完成句子①Someonedrovethecarawayinthenight.有人夜里把車(chē)開(kāi)走了。②Iwatchedseveralpeoplegoby，getintotheircarsanddrive_off.我看著幾個(gè)人走過(guò)，上車(chē)然后開(kāi)車(chē)離開(kāi)。③Thechildrennearlydrovehercrazybymakingfunofher.孩子們?nèi)⌒λ?，這簡(jiǎn)直讓她發(fā)瘋。AlexandertheGreatandMarcoPoloweresaidtohavevisitedsuchatreeinIndia.P56據(jù)說(shuō)亞歷山大大帝和馬可·波羅在印度見(jiàn)到過(guò)這樣一棵樹(shù)。[句式分析]本句為sb.issaidtohavedonesth結(jié)構(gòu)，表示據(jù)說(shuō)某人做過(guò)某事。[歸納拓展](1)該句型中的不定式根據(jù)句子意思可有一般式(todo)、進(jìn)行式(tobedoing)和完成式(tohavedone)三種形式。(2)該結(jié)構(gòu)還可以轉(zhuǎn)換成Itissaidthat...結(jié)構(gòu)。類(lèi)似的結(jié)構(gòu)還有：Itisthoughtthat...大家認(rèn)為……Itisbelievedthat...人們相信……Itishopedthat...人們希望……Itisreportedthat...據(jù)報(bào)道……Itiswell-knownthat...眾所周知……Itisgenerallyconsideredthat...大家認(rèn)為……Itissupposedthat...據(jù)推測(cè)……[即時(shí)鞏固]單句語(yǔ)法填空/完成句子①I(mǎi)tissaidthatanewshoppingmallwasbuiltinthecitytheotherday.＝Anewshoppingmallissaidto_have_been_builtinthecitytheotherday.②Heisthoughtto_have_acted(act)foolishly.Nowhehasnoonebuthimselftoblameforlosingthejob.③Carbondioxideissaidto_be_heating(heat)theearthtwiceasquicklyaspreviouslyfeared.④Johnissaidto_beoneofthebestteachersintheschool.＝It_is_said_thatJohnisoneofthebestteachersintheschool.據(jù)說(shuō)約翰是這個(gè)學(xué)校最好的老師之一。Ⅰ.單詞拼寫(xiě)1．ThereisafamousGreekmyth(神話)inwhichIcarusflewtooneartothesun.2．Shewasalegend(傳奇)inherownlifetime.3．Thetestsaredesignedtodetect(發(fā)現(xiàn))thediseaseearly.4．Thesearevegetablesgrownwithouttheuseofpesticides(殺蟲(chóng)劑)．5．Ipulledtheplantupbytheroots