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1、Unit1Reading 2TV and audio devices: a reviewUNIT 1课件描述：件描述：这是是Reading 板板块的第二的第二课时。由于。由于Reading 板板块的文章不的文章不仅为学生提供丰富的信息，同学生提供丰富的信息，同时又富含字、又富含字、词、句等、句等语言材料供学生学言材料供学生学习，所以第二，所以第二课时教学主要关注学生教学主要关注学生对字字词句等句等语言知言知识的学的学习和运和运用，如重要短用，如重要短语的理解和用法以及核心的理解和用法以及核心词汇的理解和用的理解和用法等。法等。IMPORTANT PHRASES theevolutionofvi
2、deoandsounddevicesshortlyafterwardscontributedtothedevelopmentofTV.wasveryprimitiveandhadmanydrawbacksmadeimportantbreakthroughsinthedevelopmentoftheTVinthelate1920sandearly1930sadoptmanyoftheprinciplesconstructedthefirstcolourTVregularcolourTVbroadcastsweredelayedwithinashorttimeSatellitesallowlive
3、TVprogrammestobebroadcastovervastdistancesmakeTVaccessibletopeoplewholivefarawayfromcitiesthroughoutthecountrysideandtheremoteareasasmallpercentageofpeoplebenefitfromsatelliteTVbroadcastthesignalsmadethefirstrecordingofahumanvoiceusedroundtubestorecordonuseddiscsasalternativetotubesbewoundupbyhandTi
4、messurehavechanged!employedsteeltapetorecordonpapertapealsotoreeasily.bythelate1960sSoundandvideogoesdigital.ThefirstCDsweremadeavailable.withtheadaptationofdigitaltechnologymakethingsofthepastkeeppacewithforeseewhatthefuturewillbringKEY WORDS1.contribute2.adopt3.delay4.access5.wind6.tear7.liveManyd
5、ifferentpeoplecontributedtothedevelopmentofTV.contribute(v.)contribute(v.)1.togivemoney,help,ideasetc.tosomethingthatalotofotherpeoplearealsoinvolvedincontributeto/towardscontributeto/towardsCityemployeescannotcontributetopoliticalcampaigns.contributesth.to/towardssth.contributesth.to/towardssth.The
6、volunteerscontributetheirowntimetotheproject.2.tohelptomakesomethinghappencontributetocontributetoAlcoholcontributesto100,000deathsayearintheUS.3.towritearticles,stories,poemsetcforanewspaperormagazinecontributetocontributetooneofseveralauthorscontributingtothebookModern TVs adopt many of the princi
7、ples first discovered by Farnsworth.adopt (v.)1.tostarttodealwithorthinkaboutsomethinginaparticularwayadoptanapproach/policy/attitudeetc.adoptanapproach/policy/attitudeetc.Thecourtswereaskedtoadoptamoreflexibleapproachtoyoungoffenders.2.totakesomeoneelseschildintoyourhomeandlegallybecomeitsparentThe
8、coupleareunabletohavechildrenoftheirown,buthopetoadoptagirl. Regular colour TV broadcasts were delayed inthe UK until 1967. delay (v.)1.towaituntilalatertimetodosomethingHe delayed his decision on whether to call an election.delay doing sth.Big companies often delay paying their bills.delay sth. unt
9、il sth.The opening of this section of the road is delayed until September.2.tomakesomeoneorsomethinglateseriously/badly/slightly etc delayedThe flight was badly delayed because of fog.They also make TV accessible to people who live far away from cities, accessible (adj.)1.easytoobtainoruseaccessible
10、 tothe need for an efficient health service that is accessible to alleasily/readily accessibleComputers should be made readily accessible to teachers and pupils.aplace,building,orobjectthatisaccessibleiseasytoreachorgetintoThe island is only accessible by boat.There is a church which is easily acces
11、sible from my home.1.someonewhoisaccessibleiseasytomeetandtalkto,eveniftheyareveryimportantorpowerfulI think that youll find shes very accessible.2.abook,poem,paintingetcthatisaccessibleiseasytounderstandandenjoyHe wants his music to be accessible to everyone.access (n.)1.therighttoenteraplace,useso
12、mething,seesomeoneetcaccess toAccess to the papers is restricted to senior management.Cats should always have access to fresh, clean water.2.howeasyordifficultitisforpeopletoenterapublicbuilding,toreachaplace,ortalktosomeoneaccess toa house with easy access to the sea3.tosucceedinenteringaplaceorins
13、eeingsomeoneorsomethinggain/get access (to sth)The police managed to gain access through an upstairs window.access (vt.)tofindinformation,especiallyonacomputerUsers can access their voice mail remotely.The first record players had to be wound up by hand wind(v.)wind(v.)(wound,wound)(wound,wound)1.to
14、turnortwistsomethingseveraltimesaroundsomethingelsewindstharound/roundsthwindstharound/roundsthThehairisdividedintosectionsandwoundaroundheatedrods.2.toturnpartofamachinearoundseveraltimes,inordertomakeitmoveorstartworkingalsowindupwindupDidyouremembertowindtheclock?3.ifaroad,riveretcwindssomewhere,
15、ithasmanysmoothbendsandisusuallyverylongwind(itsway)through/alongetcsthwind(itsway)through/alongetcsthHighway99windsitswayalongthecoast.awindingpath4.tomakeatapemoveinamachinewindsthforward/backwindsthforward/backCanyouwindthevideobackalittleway-Iwanttoseethatbitagain. or paper tape, which was easie
16、r to use but often broke also tore easily. tear(v.)tear(v.)1.todamagesomethingsuchaspaperorclothbypullingithardorlettingittouchsomethingsharpBecarefulnottotearthepaper.tearsth.onsth.tearsth.onsth.Sherealizedshehadtornherjacketonanail.tearsth.offtearsth.offTearofftheslipatthebottomofthispageandsendit
17、backtous.tearsth.out(ofsth.)tearsth.out(ofsth.)Hetoreapageoutofhisnotebookandhandedittoher.2.Thepapertearseasily.3.topullsomethingviolentlyfromapersonorplacetearsth.fromsb./sth.tearsth.fromsb./sth.Hetoretheletterfrommyhand.tearsth.offsth.tearsth.offsth.Highwindsnearlytoretheroofoffthehouse.be torn1.
18、ifyouaretorn,youareunabletodecidewhattodobecauseyouhavedifferentfeelingsordifferentthingsthatyouwant Jess was torn by anger and worry.be torn between She was torn between her love of dancing and her fear of performing in public.2.ifacountryorgroupistorn,itisdividedbecausepeopleinithaveverydifferenti
19、deasandarearguingorfightingwitheachother The country was torn by civil war. She spent two months in the war-torn country.Phrases tear sb. /sth. to shreds/piecestear aparttocauseseriousargumentsinagroupofpeopletear at /topullviolentlyatsomeoneorsomethingtear awaytomakeyourselforsomeoneelseleaveaplace
20、whenyouortheydonotwanttoleavetear downtodestroyabuildingdeliberatelytear offtoremoveyourclothesasquicklyasyoucantear up(1)totearapieceofpaperorclothintosmallpieces(2)toremovesomethingfromthegroundbypullingorpushingitviolentlytear up an agreement/a contract etc tosaythatyounolongeracceptanagreementor
21、contract1.Scandalistearingthegovernment_.2.Theythreatenedtotear_thepeaceagreement.3.Thechildrenwerescreamingandtearing_eachothershair.4.Shetore_hisletterandthrewitaway.5.Treesweretorn_bythestorm.6.Alotoftheoldtowerblockshavebeentorn_tomakewayfornewhousing.7.Hewasenjoyingthefunandcouldnttearhimself_.
22、8.Wefinallymanagedtotearhim_theTV.9.Hetore_hisclothesanddivedintothewater.Satellites allow live TV programmes to be broadcast over vast distances, live (adj.)1.alivetelevisionorradioprogrammeisseenorheardontelevisionorradioatthesametimeasitisactuallyhappeninga live radio phone-in showThere will be l
23、ive TV coverage of tonights big match.2.notdeadorartificial=livingexperiments on live animals3.aliveperformanceisoneinwhichtheentertainerperformsforpeoplewhoarewatching,ratherthanafilm,recordetcThe band will be giving a live concert performance next week.4.awireorpieceofequipmentthatislivehaselectricityflowingthroughitBe careful - those wires are live.live (adv.)Theceremonywillbebroadcastliveontelevision.ThematchwillbeshownlivebytheBBC.Ilovetheirmusic,butIveneverseenthemperformlive.ThebandisplayingliveinBirminghamtonight.Homework1.Reviewthepassage.2.Page102A1,A2.
