北師大版高中英語(yǔ)選擇性必修第二冊(cè)UNIT6 Section Ⅱ Period4課件

Period4

UNIT6

THEMEDIA主題語(yǔ)境人與社會(huì)——科技發(fā)展與信息技術(shù)創(chuàng)新

SectionⅡ

LESSON2&LESSON3課時(shí)學(xué)案單元語(yǔ)法講練usedto和would1．usedto與would的共同之處

(1)usedto與would都可用來(lái)表示過(guò)去經(jīng)常性或習(xí)慣性的動(dòng)作，常?？梢該Q用。Heusedto/wouldspendhissparetimereadingbooks．過(guò)去，他常常把空閑時(shí)間用在讀書上。(2)usedto與would都不能用來(lái)表示動(dòng)作發(fā)生的具體頻度或具體的一段時(shí)間。Iusedto/wouldgotoFrancesixtimes．(×)IhavebeentoFrancesixtimes． (√)我去過(guò)法國(guó)六次。Heusedto/wouldliveinAfricafortwentyyears．(×)HelivedinAfricafortwentyyears．(√)他在非洲住了二十年。2．usedto與would的區(qū)別(1)usedto可表示過(guò)去的習(xí)慣動(dòng)作或狀態(tài)，而would只表示過(guò)去的習(xí)慣動(dòng)作。Whenwewerekidsweusedto/wouldgoswimmingeverysummer．小時(shí)候，每到夏天我們都要去游泳。Heisnotwhatheusedtobe．他已非昔日的他了。(不能用would)(2)would表示反復(fù)發(fā)生的動(dòng)作。如果某一動(dòng)作沒(méi)有反復(fù)性，就不能用would，只能用usedto。Andfromthatdayon，assoonasthetablewasclearedandthedisheswereremoved，motherwoulddisappearintohersewingroomtopractise．從那天起，只要飯桌一清理干凈、碗盤撤掉，媽媽就馬上去做針線活的房間練習(xí)起來(lái)。(具有反復(fù)性)IusedtoliveinBeijing．我過(guò)去住在北京。(沒(méi)有反復(fù)性)[名師點(diǎn)津]

usedto的否定、疑問(wèn)式和附加疑問(wèn)句基本形式usedto否定式usednot/usedn'ttodo/didn'tuseto疑問(wèn)式Usedsb．todosth．?Didsb．usetodosth．？反意疑問(wèn)式usedn't/didn't＋主語(yǔ)/thereHedidn'tusetodrivetowork．他過(guò)去不常開(kāi)車去上班?！狣idheusetoliveinthecountryside?—Yes，hedid．/No，hedidn't．——他過(guò)去常住在鄉(xiāng)下嗎？——是的，他常住在鄉(xiāng)下。/不，他不常住在鄉(xiāng)下。Thereusedtobeachurchhere，usedn't/didn'tthere?過(guò)去這里有座教堂，是不是？[即時(shí)訓(xùn)練]完成句子①他有空時(shí)，常會(huì)過(guò)來(lái)跟我們聊天。He_____________________________________

uswhenhewasfree．②他過(guò)去常住在河邊的一座小木屋里。He_______________acottageneartheriver．③他會(huì)獨(dú)自一人坐在那兒思考。He_________________therealone,thinking．④他會(huì)幫助母親做家務(wù)。He__________________hismotherwithherhousework．usedto/wouldcometohaveachatwithusedtoliveinusedto/wouldsitusedto/wouldhelp用usedto或would填空WhenIwasalittlechild，I1．_______liveinasmallvillagewithmygrandparents．I2．______________getupearlytowalkalongthebankofariver．Mygrandfather3．______________leadmetoasmallwood．There4．_______bemanytalltrees．I5．_____________sitonthegrassandlookatthebluesky．Attimes，there6．_____besomesmallanimalspassingby．Whenthebreakfastwasready，mygrandmother7．_____________shouttous．I8．________enjoythedeliciousmealpreparedbyher．usedtousedto/wouldusedto/wouldusedtousedto/wouldwouldusedto/wouldusedtoⅠ．單詞拼寫1．TodayI_________(見(jiàn)證)arewardingactivity—TreePlantingorganisedbytheStudentUnionofourschool．2．Inordertomakemore_______(利潤(rùn))，thefirmwouldseektomaximiseoutput．3．Thebandhave________(上傳)threedemotracksrecordedlastmonth．課時(shí)分層作業(yè)（八）witnessedprofitsuploaded4．Hewasexhaustedandjustwantedtofinda____(地點(diǎn))tosleep．5．Notonlydiditarouseourawarenessofbuildingourselvesup，butalsoinspiredusto_____(促進(jìn))ourteamworkspirit．6．HetoldsomefascinatingtalesabouthislifeinIndia，whichgreatly_________(吸引)theaudience．7．Apparently,_________(使結(jié)合)myjobwithmylittlechildrenisratherdifficultforme．8．Ourcountryisaplacewhere_______(自由)ofspeechisguaranteed,socitizenscanoftenheardifferentideas．spotboostattractedcombiningfreedom9．Allthestudentswhoaregraduatingthistermarewelcomedto___________(參加)inthisactivity．10．Thefarm,_______(位于)inthesuburbofourcity，hasawiderangeofcropssuchasvegetablesandfruits．participatelocatedⅡ．選詞填空(be)suitablefor,consistof,standout,participatein,giveup,gothrough,alongwith,combine...with...1．Theancientchurch，_____________about100rooms，isamust-seeinthecity．2．Oftheteenagerswho________________thesurvey,49%saidthatlibrariesarewheretheygetmostoftheirbooks．consistingofparticipatedin3．Notuntilhe____________realhardshipsdidherealisethelovewehaveforourfamiliesisimportant．4．Itisourresponsibilitytoseizeeveryopportunitytoeducateeveryoneaboutglobalwarming，__________itscausesandimpacts．5．ItwouldbeveryniceifyoucanrecommendsomeclassicEnglishliteraryworks_____________usstudents．wentthroughalongwithsuitablefor6．Howeverdifficultitwas，noparticipants_______halfway．7．Thoughhiswaistwaspainful，heperformedwelland_________inthefinal．8．Onlywhenexercise_________________ahealthydietcanyoukeepreallyfit．gaveupstoodoutiscombinedwithⅢ．閱讀理解TheFoodandDrugAdministration(FDA)hastorecall(召回)hundredsoffoodseveryyear．Likecookiesnackpackswithpiecesofblueplastichidinginside,dressingandsaucecontainingsalmonella(沙門氏菌)orvariousjamscontaininglead(鉛)．Itcantakeafewmonthsbeforearecallisissued．Butnowresearchershavecomeupwithamethodthatmightfasttrackthatprocess,leadingtoearlydetectionand,ultimately,fasterrecalls．TheAIsystemreliesonthefactthatpeopleincreasinglybuyfoodsandspices(調(diào)味料)online．Andpeopletendtowritereviewsofproductstheybuyonline,whicharelikebreadcrumbs(面包屑)tofoodsafetyofficialssniffing(嗅)outdangerousproducts．TheresearcherslinkedFDAfoodrecallsfrom2012to2014toAmazonreviewsofthosesameproducts．Theythentrainedmachine-learningalgorithms(算法)todistinguishbetweenreviewsforrecalleditemsandreviewsforitemsthathadnotbeenflagged．AndthetrainedalgorithmswereabletopredictFDArecallsthreequartersofthetime．Theyalsoidentifiedanother20，000reviewsforpossiblyunsafefoods,mostofwhichhadneverbeenrecalled．TheresultsarepublishedinJournaloftheAmericanMedicalInformaticsAssociation．TheWorldHealthOrganisationestimatesthat600millionpeopleworldwidegetsickannuallyfrompollutedfood,andmorethan400，000peoplediefromit．“SohavingtoolsthatenableustodetectthisalotfasterandhopefullyinvestigateanddorecallsfasterwillbeusefulnotjustintheUSbutinothercountriesaroundtheworldaswell，”studyauthorElaineNsoesieofBostonUniversitysaid．Shedidaddonewarning:evenrecalledproductscanstillgetfive-starreviews．Sostarsalonedon'ttellthewholesickeningstory．Theproof,unfortunately,maystillbeinthepudding．【語(yǔ)篇解讀】本文是一篇說(shuō)明文。文章主要介紹了研究者開(kāi)發(fā)的一種新的AI系統(tǒng)，它能通過(guò)網(wǎng)上對(duì)產(chǎn)品的評(píng)論快速地篩選出不安全食品。1．WhatwillhelpFDArecallunsafefoodsfasterthanbefore?A．Effortsoffoodsafetyofficials．B．Onlinereviewsofthepollutedfoods．C．Lotsofonlinereviewsofproducts．D．Newmeasuresoffoodsafetyofficials．√C

[細(xì)節(jié)理解題。根據(jù)第二段最后一句“Andpeopletendtowritereviewsofproductstheybuyonline,whicharelikebreadcrumbstofoodsafetyofficialssniffingoutdangerousproducts．”和第三段第一句“TheresearcherslinkedFDAfoodrecallsfrom2012to2014toAmazonreviewsofthosesameproducts．”可知，網(wǎng)上大量的關(guān)于產(chǎn)品的評(píng)論有助于FDA比以前更快地召回不安全食品。故選C。]2．Howdoestheauthorintroducetheprocessoftheresearch?A．Byaskingcustomers．B．Bydescribingfacts．C．Bygivingexamples．D．Bymakingcomparisons．√B

[推理判斷題。根據(jù)第三段中的“TheresearcherslinkedFDAfoodrecallsfrom2012to2014toAmazonreviewsofthosesameproducts．Theythentrainedmachine-learningalgorithmstodistinguishbetweenreviewsforrecalleditemsandreviewsforitemsthathadnotbeenflagged．”和“Theyalsoidentifiedanother20，000reviewsforpossiblyunsafefoods,mostofwhichhadneverbeenrecalled．”可推知，作者是通過(guò)描述事實(shí)來(lái)介紹研究過(guò)程的。故選B。]3．What'sElaine'sattitudetowardsfive-starreviews?A．Doubtful． B．Careless．C．Supportive． D．Unclear．√A

[觀點(diǎn)態(tài)度題。根據(jù)最后一段中的“Shedidaddonewarning:evenrecalledproductscanstillgetfive-starreviews．Sostarsalonedon'ttellthewholesickeningstory．Theproof，unfortunately,maystillbeinthepudding．”可知，Elaine對(duì)五星評(píng)論持有懷疑的態(tài)度。故選A。]4．Whichmaybethemostsuitabletitleforthetext?A．FDADetectsUnsafeFoodsB．AISniffsOutUnsafeFoodsC．FDADevelopsSystemofJudgingReviewsD．AIHelpsFDAJudgeReviewsMuchBetter√B

[標(biāo)題歸納題。根據(jù)第二段中的“Itcantakeafewmonthsbeforearecallisissued．Butnowresearchershavecomeupwithamethodthatmightfasttrackthatprocess,leadingtoearlydetectionand,ultimately,fasterrecalls．TheAIsystemreliesonthefactthatpeopleincreasinglybuyfoodsandspicesonline．”可知，本文主要介紹了研究者開(kāi)發(fā)了一種新的AI系統(tǒng)，它能通過(guò)網(wǎng)上對(duì)產(chǎn)品的評(píng)論快速地篩選出不安全食品。故選B。]Ⅳ．完形填空Growingupandplayinghockeywithherbrothersinthearea,Manon

Rheaumelearnedprettyquicklythat,despiteher1,shewasoftencutfromteams2becauseshewasagirl．Althoughitwas

3

fortheyoungster,shecontinuedtoworkhardand4herskillstoproveshecould5withtheboys．Itdidn'ttakelongforhertomakea6forherself．In1984,shebecamethefirstgirlto7inthewell-knownQuebecCityInternationalpee-weeHockeyTournament．WhentheTampaBayLightning,aNationalHockeyLeague(NHL)team,camecallingthefollowingyear,itwasa8

Rheaumecouldnotpassup．WhenRheaumearrivedinTampaBay,sherememberstherewasabigbouquetofflowerswaitingforherinherdressingroom,alongwitha9．

“ItwasfromaradiostationinMontrealandthecard

10

‘Gofurther,good11toyou,we'reallonyour12andyou'renotalone，’”shesaid．

“WhenIgotthat,Irealisedalotofpeoplewere13metobesuccessful．”AlthoughherexperiencewiththeNHLwasbrief,Rheaumeencouragedcountlessgirlsto14theirhockeydreams．

Rheaumesaid,“Hardworkandnevergivingupiswhatmakesyou15．”【語(yǔ)篇解讀】本文是一篇記敘文。文章講述了打冰球的瑪農(nóng)·雷奧姆努力提高自己，最終進(jìn)入了坦帕灣閃電隊(duì)的勵(lì)志故事。1．A．competence

B．patienceC．difference D．influenceA

[根據(jù)下文“shebecamethefirstgirlto_________inthewell-knownQuebecCityInternationalpee-weeHockeyTournament”可知，瑪農(nóng)·雷奧姆是有能力的，盡管她有能力，但是因?yàn)樗莻€(gè)女孩，所以她經(jīng)常被球隊(duì)除名。故選A。]√2．A．hardly B．simplyC．physically D．irresponsiblyB

[根據(jù)下文“becauseshewasagirl”可知，隊(duì)伍不要她，僅僅是因?yàn)樗莻€(gè)女孩。故選B。]√3．A．confusing B．surprisingC．embarrassing D．disappointingD

[根據(jù)上文“shewasoftencutfromteams”可知，球隊(duì)不要她，讓她很失望。故選D。]√4．A．recover B．solveC．sharpen D．expectC

[根據(jù)上文“shecontinuedtoworkhard”可知，她努力訓(xùn)練，是為了提高自己的技能。故選C。]√5．A．complain B．competeC．celebrate D．decorateB

[根據(jù)上文“shecontinuedtoworkhardand__________herskillstoprove”和下文“withtheboys”可知，她努力提高自己的技能，是為了證明自己可以和男孩競(jìng)爭(zhēng)。故選B。]√6．A．name B．planC．face D．ruleA

[根據(jù)下文“shebecamethefirstgirlto____________inthewell-knownQuebecCityInternationalpee-weeHockeyTournament”可知，她出了名，成為第一個(gè)參加著名的魁北克市國(guó)際少年曲棍球錦標(biāo)賽的女孩，makeaname意為“出名”。故選A。]√7．A．work B．engageC．star D．volunteerB

[根據(jù)下文“inthewell-knownQuebecCityInternationalpee-weeHockeyTournament”可知，她是參加這個(gè)比賽。故選B。]√8．A．dream B．roleC．signal D．chanceD

[根據(jù)上文“WhentheTampaBayLightning,aNationalHockeyLeague(NHL)team,camecalling”可知，美國(guó)國(guó)家冰球聯(lián)盟的坦帕灣閃電隊(duì)造訪，這是一個(gè)她不能錯(cuò)過(guò)的機(jī)會(huì)。故選D。]√9．A．reason B．ticketC．card D．pictureC

[根據(jù)下文的“thecard”可知，這個(gè)花束里有一張卡片。故選C。]√10．A．buried B．readC．explained D．listedB

[根據(jù)下文“Gofurther,good__________toyou,we'reallonyour__________andyou'renotalone”可知，這是她在讀卡片上的內(nèi)容。故選B。]√11．A．luck B．momentC．gifts D．newsA

[根據(jù)空前“Gofurther”和下文“toyou”可知，寫卡片的人鼓勵(lì)她繼續(xù)前進(jìn)，并祝她好運(yùn)。故選A。]√12．A．way B．mindC．side D．scheduleC

[根據(jù)下文“you'renotalone”可知，寫卡片的人說(shuō)一直站在她身邊，onyourside意為“站在你這一邊”。故選C。]√13．A．pressing B．collectingC．a(chǎn)dvising D．supportingD

[根據(jù)上文“we'reallonyour__________andyou'renotalone”可知，寫卡片的人說(shuō)會(huì)站在她身邊，所以是支持她的。故選D。]√14．A．stickto B．putoffC．makeup D．setasideA

[根據(jù)下文“theirhockeydreams”可知，此處表示她鼓勵(lì)了無(wú)數(shù)女孩堅(jiān)持自己的冰球夢(mèng)想。故選A。]√15．A．careful B．popularC．successful D．reliableC

[根據(jù)上文“Hardworkandnevergivingup”可知，努力工作和永不放棄才會(huì)使你成功。故選C。]√Ⅴ．語(yǔ)法填空It'sestimatedthattwo-thirdsofpeopleonlinehavehadtheirpersonalinformation1．_________

(steal)．

Facedwithsucharangeof2．_______

(threat)，it'seasytofocusontechnologyinvestment．Firewalls，anti-virusprotectionandeveryotherkindoftechnologycanbethreatenedaswell．That'snottosaythat3．________________________

(invest)inITsecurityisn'timportant．Butthecybersecurity(網(wǎng)絡(luò)安全)threatneedsindividuals4．_________

haveskills，talentandexperience5．_________(bad)．

stolenthreatsinvestment/investingwho/thatbadly

Onlywithpeoplepowercanwewintheonlinesecuritywar．Here6．_____

(be)themainreasonsandmethods．

Firstofall，itisimportanttoimprovethesecurity7．__________(aware)．Securityisbecomingimportant，withorganisationsstartingtounderstandthebigrolethatindividualemployeesmustplay．

Secon