北师大版高中英语选修7课件： Unit 21Warmup.ppt

unit21 unit21humanbiology inthisunityouwill readnewspaperandmagazinearticlesandusereadingstrategiestocompletetextswithparagraphgaps talkaboutissuesrelatedtohealthandmedicaladvances listentomonologues dialogues alesson aradiophone in atvprogrammeanduselisteningstrategiesforcompletinggapsintexts writeadiscursiveessay reviseandlearnmoreaboutconditionalsentences warm up 1 findsixkeywordstolabelthepartsofthebodyinthediagram keywords thebodyankle brain eye heart kidneys bone knee liver lungs skin stomach wrist fingers brain lungs heart liver stomach kidneys thisorganweighsaboutakiloandismadeupoftwosides itislikeasupercomputerthatprocessesinformation thisisaboutthesizeofaclosedhands itsjobistobreakdownthefoodweeatsothatwehaveenergyandcanbehealthyandstrong stomach brain thisorganbeats100 000timesaday witheachbeatitmoves80millilitersofblood that s8 000litersofbloodperday itpumpsbloodintothelungs whereitreceivesoxygen beforebeingpumpedaroundtherestofthebody heart eitherofthetwoorgansinthebodythatremovewasteproductsfromthebloodandproduceurine kidney alargeorganinthebodythatcleansthebloodandproducesbile liver theseorgansabsorbsoxygenandgetridofcarbondioxide theyaresituatedoneithersideoftheheart theyreceivesairasaresultofbreathingandwhenbloodpassesthrough theygiveitoxygen lungs 2 listenandguesswhichpartsofthebodyarebeingdescribed whichwordshelpedyoudecide brain heart beats100 000timesaday pumpsbloodintothelungs lungs absorboxygen eithersideoftheheart getridofcarbondioxide eyes delicateorgan worklikeacamera sendsignalstothebrain stomach likeabag digestsyourfood listentothetapeagainandfillintheblanks thisorgan aboutakiloand twosides itislikeasupercomputerthat information weighs ismadeupof processes 2 thisorgan atregularintervals100 000timesaday witheachbeat itcirculates80mlofbloodthroughthebody that s8 000litersofbloodperday it bloodintothelungs whereitreceives beforebeingpumpedaroundtherestofthebody beats pumps oxygen 3 theseorgans oxygenand carbondioxide theyare ontheeithersideoftheheart theyreceiveairasaresultof andwhenbloodpassesthrough theygiveitoxygen absorb getridof found breathing 4 thisisaverydelicateorgan therearetwoinabodyandtheyhave whichprotectthem lightentersandreachesspeciallightsensitivecells theseworklikea andfinallysendsignalstothebrain camera delicatelids 5 thisorganislikeabagwhichreceiveseverything it yourfoodandsendsvitaminsand intotheblood youeat digests minerals 3 workinpairsandtestyourbody machine memory writedownfivetelephonenumbersandswapwithyourpartner lookfor30seconds howmanycanhe sheremember whataboutyou hearing everybodyintheclasssitsinsilencefor30seconds writedowneverysoundyoucanhear compareyourlistwithyourpartner s heart findthepulseonyourpartner swrist howmanytimesdoeshis herheartbeatinoneminute ishe shemoreorlessrelaxedthanyou theslowerhis herpulseis themorerelaxedhe sheis doyoulookafteryourself workinpairs 4 dothequestionnairewithyourpartner howmanyhoursdoyousleeppernight a under6hoursb about7or8hoursc morethan9hours howoftendoyoucleanyourteeth a onceadayb twiceadayc aftereverymeal howoftendoyoudophysicalexercise enoughtomakeyououtofbreath a neverb onceaweekc twoorthreetimesaweek howoftendoyoueatsweetsorchocolate a neverb sometimesc everyday howmanypiecesoffreshfruitdoyoueatperday a oneoretwob morethantwoc none languagepoints 1 it slikeasupercomputerthatprocessesinformation 它就像一个处理信息的超级计算机 processvt 电脑 处理 数据 e g thenewnetworkwillenabledatatobeprocessedmorespeedily 这个新网络将能够更快地处理数据 2 witheachbeat itcirculates80mlofbloodthroughthebody 心脏每跳一下 就使80毫升的血液在体内循环 circulatevt 使 循环 使 流通 e g swimminghelpstogetthebloodcirculatingthroughthemuscles 游泳有助于血液在肌肉间循环 ceilingfanscirculatedwarmairaroundtheroom 天花板风扇使唤暖气循环到房间各个角落 3 itpumpsbloodintothelungs 它把血液泵入肺中 pumpvt 用泵 抽出 注入 液体 气体等 e g thefiredepartmentisstillpumpingfloodwateroutofthecellars 救火队还在从地窖里抽出洪水 4 theseorgansabsorboxygenandgetridofcarbondioxide 这些器官吸收氧气 排出二氧化碳 absorbvt 1 吸收 液体 e g plantsabsorbnutrientsfromthesoil 植物从土壤中吸收养分 2 理解 掌握e g hercapacitytoabsorbinformationisamazing 他理解信息的能力真令人惊异 5 itdigestsyourfoodandsendvitaminsa