Unit5RevealingnatureStartingoutUnderstandingideas教學(xué)設(shè)計(jì)-高二英語選擇性

外研版（2019）選擇性必修1Unit5RevealingnatureStartingout&Understandingideas教學(xué)設(shè)計(jì)課型Reading主題語境人與自然——認(rèn)識(shí)與探索自然內(nèi)容分析該板塊分為兩個(gè)部分：第一部分通過科雜志和一段視頻激活學(xué)生已有的關(guān)于自然界動(dòng)植物的背景知識(shí)和語言知識(shí)，并引入新知，為單元后續(xù)話題及學(xué)習(xí)活動(dòng)做鋪墊和預(yù)熱。第二部分為單元主體課文，體裁為記敘文，文章以時(shí)間及行程路線為線索，介紹了著名的生物科學(xué)家達(dá)爾文著名的發(fā)現(xiàn)之旅，此次旅行，達(dá)爾文做了大量考察研究并獲取了許多關(guān)于生物進(jìn)化的信息及發(fā)現(xiàn)，并基于此次之旅，發(fā)表了后期改變世界的著名的《物種起源》一書。讀前的導(dǎo)入活動(dòng)旨在幫助學(xué)生激活關(guān)于生物進(jìn)化的相關(guān)知識(shí)及儲(chǔ)備相應(yīng)的詞匯，為課文介紹達(dá)爾文及其重要發(fā)現(xiàn)進(jìn)行學(xué)習(xí)鋪墊。讀中活動(dòng)引導(dǎo)學(xué)生通過文本解讀更深入地解讀文章標(biāo)題，理解文章內(nèi)容。讀后活動(dòng)包括判斷主旨大意、理解文章結(jié)構(gòu)和細(xì)節(jié)和開放性問答等活動(dòng)，引導(dǎo)學(xué)生進(jìn)一步理解、賞析文本，體會(huì)達(dá)爾文具有重大歷史意義的發(fā)現(xiàn)之旅，進(jìn)一步探究主題意義，感受達(dá)爾文探索科學(xué)、追求真理之路的艱難與險(xiǎn)阻，同時(shí)，也激勵(lì)學(xué)生以其為榜樣，學(xué)習(xí)他不畏困難，大膽質(zhì)疑，勇于探索的科學(xué)精神與創(chuàng)新精神。教學(xué)目標(biāo)1.熟悉話題語境，獲取文章的主旨大意；2.感知敘述類文本語篇結(jié)構(gòu)及語言特點(diǎn)，并按照事情發(fā)展順序梳理達(dá)爾文關(guān)于生物進(jìn)化的發(fā)現(xiàn)之旅；3.在語篇中學(xué)習(xí)和掌握與話題相關(guān)詞匯并能運(yùn)用所學(xué)詞匯進(jìn)行交流；4.從達(dá)爾文的故事中體會(huì)探索的艱辛，學(xué)習(xí)科學(xué)家的不畏艱難、大膽質(zhì)疑、勇敢探究的科學(xué)精神和創(chuàng)新精神；汲取積極的科研態(tài)度，指導(dǎo)實(shí)際學(xué)習(xí)生活。教學(xué)重點(diǎn)1.引導(dǎo)學(xué)生讀懂語篇，理解作者的寫作意圖，并了解爾文關(guān)于生物進(jìn)化的發(fā)現(xiàn)之旅；2.引導(dǎo)學(xué)生了解敘述類文本語篇結(jié)構(gòu)及語言特點(diǎn)。教學(xué)難點(diǎn)1.引導(dǎo)學(xué)生把握動(dòng)名詞與動(dòng)詞不定式做賓語用法并運(yùn)用其進(jìn)行表達(dá)；2.引導(dǎo)學(xué)生深度思考探索的艱辛，學(xué)習(xí)科學(xué)家的不畏艱難、大膽質(zhì)疑、勇敢探究的科學(xué)精神和創(chuàng)新精神。教學(xué)過程Step1:Warmingup.Lookatthepagefromasciencemagazineandanswerthequestions.Whatdoyouknowabouttheseanimals?Whatmakesthemspecial?Whatothersimilaranimalsdoyouknowabout?Shareyourknowledgewiththeclass.TheKomododragonisthelargestlizardintheworld.Itcangrowtothreemetresinlengthandcanweighabout135kilograms.Despiteitssizeandweight,itcanrunforshortdistancesatupto20kilometresperhour.Theduckbilledplatypusisasmallegglayingmammal(upto60cminlength)foundonlyinEasternAustraliaincludingTasmania.Asitsnamesuggests,ithasamouththatlookslikeaduck’sbill,whileitsthickfurandflattailaresimilartothoseofabeaver.Asoneoftheoldestseaanimalsintheworld,thenautilushashardlychangedinabout500millionyears,andthatiswhyitisoftengiventhename“l(fā)ivingfossil”.Jellyfisharesoftbodied,freeswimmingaquaticanimalswithanumbrellashapedbell.Theyarefoundineveryocean.帶領(lǐng)學(xué)生熟悉話題，激活己有的語言知識(shí)。Step2:Viewing.Watchthevideoandanswerthequestions.Howcanseedstravel?Howcanthisbenefitplants?Canyouthinkofanotherexampleofseedstravelling?Shareitwiththeclass.教師帶領(lǐng)學(xué)生觀看視頻，獲取信息，了解各種植物種子的不同傳播途徑。Step3:LeadinWatchavideoandtalkaboutevolution.觀看視頻，激活背景知識(shí)。Step4:PreReadingLookattheevolutionarytreeandanswerthequestions.(1)Whatspeciesdoyourecogniseinthepicture?(2)Whatfactorscancausetheprocessofevolution?教師引導(dǎo)學(xué)生看圖片，解讀該圖片所承載的語言信息及知識(shí)信息。Step5:WhileReadingReadfordetails.Para.1:Introduction(1)Whatisthefunctionofpara.1?(2)WhichofthefollowingstatementsaboutCharlesDarwinisTrue?Para.2:OnhisjourneyDarwinstudiedvariouslivingthingsintheirnaturalenvironmentsandsamplesoftheplantsandanimalshehadcollected.Henoticedthatsomespeciesofanimalswereverysimilartoeachother.Para.3:GenerateideasDarwinaskedthequestions:Howdiddifferentspeciesetoexist?Maybeanimalsevolvedastheyadaptedtotheirchangingenvironments？Para.4:LookformoreevidenceOntheGalápagosIslands:Henoticedthattherewasadifferencebetweenthefinchesoneachoftheislands.Itseemedthebeakshadevolvedaccordingtowhatfoodwasavailableonthatparticularisland.Para.5:DevelopideasDarwinsuspectedthatthefincheshadevolvedfromamonancestor,whichhadarrivedontheislandsalongtimebeforeandithadslowlyevolvedintomanynewspecies.Para.6:ProposeatheoryTheTheoryofEvolution:livingthings,includinghumans,hadevolvedfromlowerformsoflife.教師帶領(lǐng)學(xué)生進(jìn)一步梳理文章結(jié)構(gòu)，引導(dǎo)學(xué)生理解、掌握與Darwin的發(fā)現(xiàn)之旅相關(guān)的細(xì)節(jié)，檢驗(yàn)學(xué)生對(duì)課文脈絡(luò)、行文邏輯、細(xì)節(jié)內(nèi)容及話題相關(guān)語言的理解和整合情況。Step6:PostReadingThinkandshare.(1)WhatkindofpersonwasDarwinaccordingtothepassage?(2)What