北師大版（2019） 選擇性必修第三冊 Unit 9 Human Biology Lesson 3 Epidemics Explained課件

Unit9HumanBiologyLesson3EpidemicsExplained教材分析本課是第九單元第三課，圍繞閱讀語篇展開。文章介紹了epidemic的定義，成因，并著重追溯了六種流行病，最后得出各國需要攜手合作的結論。教學目標在本課學習結束時，學生能夠：1.閱讀文章并談論關于流行病的話題；2.基于總體理解做出猜測；3.梳理大體信息和特定信息；4.注意文章的組織結構。教學重難點【教學重點】1.學生能夠閱讀文章并談論關于流行病的話題；2.學生能夠在總體理解的基礎上做出猜測；3.學生能夠梳理大體信息和特定信息?！窘虒W難點】引導學生注意文章的組織結構。ReadingSARS(SevereAcuteRespiratorySyndrome)嚴重急性呼吸道綜合癥，慣稱“非典型肺炎”，簡稱“非典”，是可致命的傳染病。EbolaVirusDisease(EVD)

埃博拉病毒性疾病，是一種死亡率高的急性出血性傳染病。Doyouknowthefollowingwordsandphrasesafterthepreview?1.在短時間內____________2.和...接觸___________3.將...分類_________________

4.一定數(shù)量的________________

5.與sth相反____________

6.創(chuàng)造一個更美好的未來________________

7.詳細敘述__________

8.有記載/記錄的

___________9.度過/熬過困難時期___

10.構成威脅_____________

11.感染率_________12.在...的過程中_____________________13.作為...的結果___________14.導致

___________15.

從...中康復過來____16.查明/發(fā)現(xiàn)___________________17.提出/想出_________________

18.在全球范圍內_________________________19.

媒體報道_20.將…和…相提并論__________________withinashortperiodoftimecomeintocontactwithbeclassifiedasacertainnumberofasopposedtocreativeamorepositivefuturegointodetailonrecordinthecourseofgetthroughposeathreatinfectionratesasaresultofresultingetovergetitcomeupwithacrosstheglobepressreportdrawparallelsbetween...and...Pre-readingWhatepidemicsdoyouknowabout?COVID-19COVID-19isanewstrainofcoronavirusthathasnotbeenpreviouslyidentifiedinhumans.TheCOVID-19isthecauseofanoutbreakofrespiratoryillnessfirstdetectedinWuhan,Hubeiprovince,China.SARSSevereacuterespiratorysyndrome(SARS)isaviralrespiratoryillnessthatwasrecognizedasaglobalthreatinMarch2003,afterfirstappearinginSouthernChinainNovember2002.EbolaVirusDiseaseEbolaVirusDisease(EVD)isadeadlydiseasewithoccasionaloutbreaksthatoccurmostlyontheAfricancontinent.EVDmostcommonlyaffectspeopleandnonhumanprimates.ItiscausedbyaninfectionwithagroupofviruseswithinthegenusEbola

virus.ReadingNamePeriodPlacesDeathtollBirdFlu×EpidemicsintheRomanEmpireTheBlackDeath×TheSpanishFlu×SARS×EVDReadthepassagecarefully.Completethetableabouttheepidemicsmentioned.Thenchooseonediseasetotalkaboutwithapartner.since1997morethanahundredlives500—550CERomehalfthepopulation1330sAsiaandEurope1918—theendofWorldWarI50millionpeople2002—2003China,Canada,VietnamandSingapore2013-2016WestAfricamorethan11310deathReadingReadthepassageagainandfindalltheepidemicsmentionedinthepassage.Epidemicsbirdflu——line191918SpanishFlu——line26BlackDeath——line33SARS——line43EbolaVirusDisease——line53短語動詞(PhrasalVerbs)是由兩三個單詞組成的動詞，可以是及物的(帶賓語)，也可以是不及物的（不帶賓語）。如：

Igetupearlyevenattheweekend.

Igetoverthedifficultiesinthetask.短語動詞比較復雜，很多短語形式相似意思卻不同，如：

takedown,takeover,takeonExploringtherules短語動詞Learnthekeypoints.有的短語動詞中間可以插入名詞，有的則不能。Exploringtherules短語動詞(1)可拆分的短語動詞，如：

IforgottoturnoffmycomputerwhenIlefttheoffice.

Iforgottoturn

my

computeroffwhenIlefttheoffice.(2)不可拆分的短語動詞，如：

Icameacrossaninterestingarticleinthenewspaper.

I’mlookingforwardtospendingtimewithmysister.學習短語動詞的困難在于：沒有規(guī)則確定短語動詞是及物或不及物，可拆分或不可拆分，必須逐一學習。Exploringtherules短語動詞verbexamplesgoaway,around,with,without,against,under,over,for,infor,through,throughwith,offgetover,through,in,into,on,with,down,at,downwith,outof,awayfrom,along,alongwithcomealong,with,over,into,out,outwith,by,downwith,on,acrossExploringtherulesWordBuilderPhrasalVerbs(2)atintooverupwiththroughunderupaway(Theprepositionsandadverbsmaybeusedmorethanonce.)gogetcomeChooseprepositionsoradverbsintheboxtomakephrasalverbwiththethreeverbsintheWordBuilder.at,into,over,throu