學案：Unit1全國優(yōu)質課一等獎

Unit1Topic2SectionC精品學案學習目標：1.繼續(xù)學習現(xiàn)在完成時。2.學習分數(shù)和百分數(shù)表達法。3.繼續(xù)討論有關人口增長的問題，并引導學生樹立正確的人口觀念。重點：如何通過語境和構詞法，猜測生詞、短語大意，并感知其用法。如何在閱讀過程中找出文章主題和各個段落的Topicsentence。難點：在口頭報告和書面寫作時，能合理使用topicsentence和supportingdetails組織文章結構。課前預習：1.閱讀1a，1c和Part2找出下列短語并翻譯，背熟：social________natural_______worse_________government_________offer______supply_________paragraph___________opportunity_________newborn________percent__________onefifthof__________becauseof/thanksto______________takemeasurestodoworkwellin(doing)livingspace_________.beknownas…__________dailynaturalenvironments_____________controlthepopulation______________newbornbaby____________socialproblem_____________.2.閱讀1a，試著回答短文前面的問題和以下問題。思考：本篇短文主要論述的是__________(A.Theworld’spopulationB.China’spopulationC.China’spopulationproblems短文的每一自然段的主題句分別是(完成1b)1).__________________________2).__________________________3).___________________________學習指導：1).WhatsocialproblemdoyouthinkChina’slargepopulationhascaused?點撥：cause帶來，引起，導致。同義詞組：bringabout練習：a.Airpollutioncancausemanydiseases.譯：________________________b.Thebadweatheriscausingtroubleformanyfarmers.譯：___________點撥：doyouthink在句中做插入語2).…andaboutonefifthofthepeopleintheworldliveinChina.譯：__________點撥：onefifth五分之一分數(shù)表達口訣：分子基數(shù)詞，分母序數(shù)詞，分子大于一，分母用復數(shù)。試一試：1/2______________1/3__________________2/3________________3/4______________特殊情況：(a)half______________/aquarter________________拓展：幾分之幾的…分數(shù)+of…練習：a.Twofifthsofthestudents________(be)fromEurope.譯：____________b.Twofifthsofwater________(be)fromtheriver.譯：__________________鏈接：小數(shù)表達用_____________百分數(shù)表達用______________3).Mostcitiesaremorecrowdedthanbefore,andthetrafficismuchheavier.譯：_____________點撥：crowded擁擠的；heavier更繁重的。思考：句中more__________比較級;much___________比較級練習：近年來過多的人口造成了擁擠的城市和繁重的交通。譯：________________4).Sofar,ourgovernmenthastakenmanymeasurestocontrolthepopulation.譯：_________________________________________________________點撥：sofar到目前為止,常用于現(xiàn)在完成時時態(tài)。takemeasurestodosth.“采取措施做某事”練習：a.Sofar,I_______________(make)severalgoodfriendsinmyschool.b.Sofar,China__________________(have)thelargestpopulationintheworld.5).IthasworkedwellincontrollingChina’spopulation.譯：________________點撥：workwellin(doing)sth.在做某事方面很有成效。dowellin=workwellin=begoodat…練習：a.RecitingtextseveryworkswellinlearningEnglish.譯：____________b.每天跑步對預防(prevent)流感很有成效。譯：_______________________6)beknownas意為“被稱為；以.......著稱”后接表示某種職業(yè)或某物的名詞。如：JayChouisknownasarapsinger.周杰倫作為一個說唱手而出名。TeachingprocedureⅠ.預習展示GetthestudentstofinishTask1inPre-Learnigpartandassess.GetthemtotranslatethekeysentenceinPre-Learnigpartandassess.Ⅱ.合作學習展示：Getthestudentstoread1aaloudingroupsandactitout,dealingwiththelanguagepointsinthepassage.Finish1cbythemselvesafterreading1a.Finish2ingroupsthenasksomestudentstodoitandchecktheanswers.Ⅲ.鞏固落實:Finish3a:Workingroupsandsearchfortheinformationaboutthefollowingquestions.Thenshareyourideawithyourgroupmembers.Finish3b:Writeashortpassageofthreeparagraphsbasedon3a._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Ⅳ.當堂檢測：1）Choosethebestanswer.1._____ofthestudentsareboysinourschool.A.Twothird B.Twothrees C.Twothirds D.Secondthree2.Theone-childpolicyhas_____controllingChina’spopulation.A.beengoodatB.donewellinC.takencareofD.workedwellin3.Edisonisknown_____agreatinventor.A.forB.asC.inD.on4._____yourhelp,Imadegreatprogressinmath.A.Thanksfor B.ThankstoC.Thankto D.Thankfor2）根據(jù)句意及中文提示，寫出單詞：________(提供)someusefuladvice.’s_________(自然的)toworryaboutyourchildren.____________(政府)hasconsideredtheenvironmentalproblemsalready.sportshelptodevelopachild’s__________(社交的)skill.weatherwasbadyesterday,buttodayitiseven__________(更糟的)。3）根據(jù)句意及中文提示，完成句子。(每空一詞)1.因為他來晚了，所以我們錯過了火車。________________hisbeinglate,wemissedthetrain.2.我們必須采取措施阻止青少年吸煙。Wemust_______________stopteenagersfromsm