北師大版高中英語選擇性必修第二冊UNIT6 Section Ⅱ Period4課件

Period4

UNIT6

THEMEDIA主題語境人與社會——科技發(fā)展與信息技術創(chuàng)新

SectionⅡ

LESSON2&LESSON3課時學案單元語法講練usedto和would1．usedto與would的共同之處

(1)usedto與would都可用來表示過去經(jīng)常性或習慣性的動作，常常可以換用。Heusedto/wouldspendhissparetimereadingbooks．過去，他常常把空閑時間用在讀書上。(2)usedto與would都不能用來表示動作發(fā)生的具體頻度或具體的一段時間。Iusedto/wouldgotoFrancesixtimes．(×)IhavebeentoFrancesixtimes． (√)我去過法國六次。Heusedto/wouldliveinAfricafortwentyyears．(×)HelivedinAfricafortwentyyears．(√)他在非洲住了二十年。2．usedto與would的區(qū)別(1)usedto可表示過去的習慣動作或狀態(tài)，而would只表示過去的習慣動作。Whenwewerekidsweusedto/wouldgoswimmingeverysummer．小時候，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表示反復發(fā)生的動作。如果某一動作沒有反復性，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起來。(具有反復性)IusedtoliveinBeijing．我過去住在北京。(沒有反復性)[名師點津]

usedto的否定、疑問式和附加疑問句基本形式usedto否定式usednot/usedn'ttodo/didn'tuseto疑問式Usedsb．todosth．?Didsb．usetodosth．？反意疑問式usedn't/didn't＋主語/thereHedidn'tusetodrivetowork．他過去不常開車去上班?！狣idheusetoliveinthecountryside?—Yes，hedid．/No，hedidn't．——他過去常住在鄉(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?過去這里有座教堂，是不是？[即時訓練]完成句子①他有空時，常會過來跟我們聊天。He_____________________________________

uswhenhewasfree．②他過去常住在河邊的一座小木屋里。He_______________acottageneartheriver．③他會獨自一人坐在那兒思考。He_________________therealone,thinking．④他會幫助母親做家務。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_________(見證)arewardingactivity—TreePlantingorganisedbytheStudentUnionofourschool．2．Inordertomakemore_______(利潤)，thefirmwouldseektomaximiseoutput．3．Thebandhave________(上傳)threedemotracksrecordedlastmonth．課時分層作業(yè)（八）witnessedprofitsuploaded4．Hewasexhaustedandjustwantedtofinda____(地點)tosleep．5．Notonlydiditarouseourawarenessofbuildingourselvesup，butalsoinspiredusto_____(促進)ourteamworkspirit．6．HetoldsomefascinatingtalesabouthislifeinIndia，whichgreatly_________(吸引)theaudience．7．Apparently,_________(使結合)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．【語篇解讀】本文是一篇說明文。文章主要介紹了研究者開發(fā)的一種新的AI系統(tǒng)，它能通過網(wǎng)上對產品的評論快速地篩選出不安全食品。1．WhatwillhelpFDArecallunsafefoodsfasterthanbefore?A．Effortsoffoodsafetyofficials．B．Onlinereviewsofthepollutedfoods．C．Lotsofonlinereviewsofproducts．D．Newmeasuresoffoodsafetyofficials．√C

[細節(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)上大量的關于產品的評論有助于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，作者是通過描述事實來介紹研究過程的。故選B。]3．What'sElaine'sattitudetowardsfive-starreviews?A．Doubtful． B．Careless．C．Supportive． D．Unclear．√A

[觀點態(tài)度題。根據(jù)最后一段中的“Shedidaddonewarning:evenrecalledproductscanstillgetfive-starreviews．Sostarsalonedon'ttellthewholesickeningstory．Theproof，unfortunately,maystillbeinthepudding．”可知，Elaine對五星評論持有懷疑的態(tài)度。故選A。]4．Whichmaybethemostsuitabletitleforthetext?A．FDADetectsUnsafeFoodsB．AISniffsOutUnsafeFoodsC．FDADevelopsSystemofJudgingReviewsD．AIHelpsFDAJudgeReviewsMuchBetter√B

[標題歸納題。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發(fā)了一種新的AI系統(tǒng)，它能通過網(wǎng)上對產品的評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．”【語篇解讀】本文是一篇記敘文。文章講述了打冰球的瑪農·雷奧姆努力提高自己，最終進入了坦帕灣閃電隊的勵志故事。1．A．competence

B．patienceC．difference D．influenceA

[根據(jù)下文“shebecamethefirstgirlto_________inthewell-knownQuebecCityInternationalpee-weeHockeyTournament”可知，瑪農·雷奧姆是有能力的，盡管她有能力，但是因為她是個女孩，所以她經(jīng)常被球隊除名。故選A。]√2．A．hardly B．simplyC．physically D．irresponsiblyB

[根據(jù)下文“becauseshewasagirl”可知，隊伍不要她，僅僅是因為她是個女孩。故選B。]√3．A．confusing B．surprisingC．embarrassing D．disappointingD

[根據(jù)上文“shewasoftencutfromteams”可知，球隊不要她，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爭。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，成為第一個參加著名的魁北克市國際少年曲棍球錦標賽的女孩，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，美國國家冰球聯(lián)盟的坦帕灣閃電隊造訪，這是一個她不能錯過的機會。故選D。]√9．A．reason B．ticketC．card D．pictureC

[根據(jù)下文的“thecard”可知，這個花束里有一張卡片。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，寫卡片的人鼓勵她繼續(xù)前進，并祝她好運。故選A。]√12．A．way B．mindC．side D．scheduleC

[根據(jù)下文“you'renotalone”可知，寫卡片的人說一直站在她身邊，onyourside意為“站在你這一邊”。故選C。]√13．A．pressing B．collectingC．advising D．supportingD

[根據(jù)上文“we'reallonyour__________andyou'renotalone”可知，寫卡片的人說會站在她身邊，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，此處表示她鼓勵了無數(shù)女孩堅持自己的冰球夢想。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使你成功。故選C。]√Ⅴ．語法填空It'sestimatedthattwo-thirdsofpeopleonlinehavehadtheirpersonalinformation1．_________

(steal)．

Facedwithsucharangeof2．_______

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

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

haveskills，talentandexperience5．_________(bad)．

stolenthreatsinvestment/investingwho/thatbadly

Onlywithpeoplepowercanwewintheonlinesecuritywar．Here6．_____

(be)themainreasonsandmethods．

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

Secon