牛津版上海版八年级下册Unit2Water教案.docx
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牛津版上海版八年级下册Unit2Water教案
U2Water
Thefirstperiod
Teachingaims：
Introducethetopicwater.Askstudentstoworkinpairsforafewminutes,andtowritedownanythingtheyknowaboutwater.Ask3studentstotelltheiranswersandwritethemdownontheblackboard.Thendiscusstheirideasbrieflyanddotheexercises.
TeachingImportantPoints:
Trytoknowsomethingaboutwater
TeachingProcedures:
1:
AFreeTalk
Whatdoyouknowaboutwater
*Peoplecanlivewithoutfoodformorethanamonth,buttheycan't
livewithoutwaterformorethanweek.Losingmorethan20%ofthenormalwatercontentofourbodieswillresultinapainfuldeath.
*About65-70%ofourbodiesarewater,soitisimportantforustodrinkalotofwater.Eachday,anormalpersonwilldrinkabout2.4litersofwaterorotherdrinks.InAmerica,theaveragepersonwilluse260litersofwateradayandonaverage,eachpersonwilldrink60,600litersofwaterinhis/herlife.
*Somepeoplebelievethatouremotionsandmentalstabilityareaffectedwhenthereisafullmoonbecausethegravitationalpullofthemoonaffectsthewaterinourbodiesinthesamewayasitaffectstheoceantides.Legendssaythatwerewolvesappearwhen
thereisafullmoon.
*Youneedmorewaterduringandafterexercisebecauseyoulosewaterbysweatingandyouneedtoreplacethewaterthatislost.
*Waterfreezesat0°C（32T）.Whenitfreezes,itchangesintoice.Waterboilsat100C（212T）whenitchangesitsformintoagas,becomingsteam.
2:
Lookandthink
*Choosethewriteanswer
1Youcouldlivewithoutwaterforafew.
adaysbweekschours
2Yourbodyneedsaboutlitersofwaterdaily.
atwobfourceight
3Whenyouexercise,theamountofwateryouneed.
aincreasesbdecreasescremainsthesame
4Whenyoufreezewater,itbecomesa.
aliquidbsolidcgas
5Aboutoftheearthiscoveredbywater.
aonethirdbonehalfctwothirds
6Thescientificsymbolforwateris.
aH2ObHO2cH2O2
*Usethepicturetoputthesesentencesinthecorrectorder.
（）Itflowstothesea.
（）Itrunsintostreamsandrivers.
（）Itrisesfromtheseatothesky.
（）Waterfallsfromthecloudsasrain.
（）Itfallsasrainagain.
Homework:
Previewthetext:
Watertalk
Thesecondperiod
Teachingaims:
1Trytounderstandthewholelessonandreaditfluently.Thetoneandpronunciationshouldbebasicallyright.
2Learnthenewwordsandphrases.
Teachingaids:
Multimediaequipment
TeachingImportantPoints:
Howtounderstandthetestcompletely.
TeachingDifficultPoints:
TeachingProcedures:
1:
AFreetalk
（AsktwoSstotalkaboutsomemeasuresweusetosavewaterandsaythefollowing.）T:
Verygood.Thankyouforyourperformance.
Wehavelearntthatwaterisveryimportantandwedon'thaveenough
waterintheworld.Ifwedon'thavewateryinlifeo,utrhdeasilituation
willbeterribleandweallwilldie.Somepeopleinotherplacesaresufferingfromlackofwater,suchasAfricanpeople.Weshouldtreateverydropofwaterseriouslyandshouldnowasterevenadropofwater.
ShowthetextonthescreenthengivebriefintroductiontothestudentsandthenletSsreadthenewtextaftertherecording.
2:
learnsomenewwords.
1brushn.刷子，毛刷
v.刷，擦，拂拭Webrushourteethwithatoothbrusheveryday.
2pourv.灌注，倾泻，涌入，流，倾盆大雨
pouroilonthefire火上加油Tearspouredfromhereyes.
Peoplepouredintohehall.
Pleasepourmeacupoftea.
At5o'clockworkerspeoduroutofthefactories.
Itwaspouring.
3sinkn.水槽
Ileftthesoapbythesideofthesink.
v.使…下沉
Theshipissinking.
4vanishv.消失
Forestsarevanishingfromourland.
5drainn.排水管
Yourkitchendrainhasbecomeblockedbytealeaves.
v.排去
Thewaterdrainedawayslowly.
6freezev.（使）结冰，凝固
Theterriblenewsfrozemyblood.
freezingadj.极冷的frozenadj.冻结的frozenfood
7impatientadj.不耐烦的，没耐心的opp.patient有耐心的
I'mgettingimpatientbecauseI'vewaitedforanhour.
patiencen.耐心，容忍
Ihavenopatiencewithhimagain.
8obeyv.服从，顺从，听话
Theyrefusedtoobey（theorder）.
9faintadj.微弱的
Didyouhearthefaintmoanjustnow?
10floatadj.漂浮，飘浮Woodfloatsonwater.
11comfortablyadv.舒适的，舒服的
comfortableadj.安乐的，舒适的
comfortn.慰藉，安乐
Ifeelverycomfortableinthischair.Thelovelybabywasacomforttoher.
12viewn.景色，风景Thehousehasaviewoverthesea.
n.看法，观点Whatisyourviewonschoolpunishments?
13speedv.加速speedup
n.速度ataspeedof80milesanhour
Shenoddedtoshowthatsheagreedwithme.
n.点头
Hegreetedmewithanod.
15relaxv.松弛，放松，休息
Afteradayofhardwork,Irelaxedathome.
16puzzledadj.困惑的，疑惑的
puzzlev.（使）迷惑，（使）为难，迷惑不解
n.难题，迷
acrosswordpuzzle
Iwaspuzzledhowtodoit.
Theirstrangerelationshippuzzlesme.
17treatmentn.治疗，处理
Histreatmentoftheanimalwascruel.
hardtreatment:
虐待beundertreatmen：
t在治疗中
treatv.对待，处理
18thoroughadj.完全的，彻底的
We'dbetterhaveathoroughcleaningtowelcometheChineseNewYear.
thoroughlyadv.完全地，彻底地
WehavecleanedthehousethoroughlytowelcometheChineseNewYear.
19chemicaln.化学制品
Theyaddedafewchemicalstocleanupthewater.
chemical
chemicaladj.化学的
change
chemistryn.化学Sheisoutchemistryteacher.
20sewagen.污水
Wecan'tletoutsewagebecauseitwillpollutethewater.
21plantn.工厂，仪器
Whentheplantcloseddown,manyworkerslosttheirjobs.
n.植物
v.种植
22pumpv.抽水
Canyouhelptopumpthewaterfromthewell?
Theheartpumpsblood.
n.抽水机，打气筒
23preciousadj.珍贵的，宝贵的
Nothingismorepreciousthanfriendship.
Thebeautifulvaseisveryprecious.
24weirdadj.怪异的，奇怪的，不可思议的
Tomhadsomeweirdideas.
3:
Practice
Playthetapeforstudentstolistenandrepeat,thenanswersomequestions.
4:
Readandthink
Completethefollowingblanks.
JUDY
1PETERWhywasthevoiceimpatient?
Daisywas
2PETERWhydidDaisynodherhead?
JUDYsheknewwas.
3PETERWhydidthewatergotoatreatmentworks?
JUDYitjourney.
4PETERWhydidthewatersay,‘I'llbebackintheseaagain.'?
JUDYitthesea
place.
5PETERWhydidthewatersayitwaslikeliquidgold?
JUDYitbelievedthat.
6PETERWhydidBennythinkhissisterwasweird?
JUDYshesaid,‘
4:
ExplainthelanguagePoints:
1lookaround:
向四周看
Ilookedaroundandfoundtherewasnooneinthestreetatall.
2Itis/wastimetodosth.是该…的时候了，到…时候了
Itistimetohavelunch.该吃饭了。
Itwastimeforhimtostophisrevenge.
Itistimetohavearelaxifthereisnoworktodo.
3finishdoingsth.
finishwithsth.完成某事
CouldIborrowthebookwhenyouhavefinishedreadingit?
Ihavefinishedwithallmyhomework.
Theworkhasnotbeenfinishedyet.Another3daysareneededtofinishit.
Afterfinishingplayingfootball,youcanhaveabath.
4Itis（not）+adj.+forsb.todosth.某人做某事（不）容易
Itisexcitingforustogotothemovies.
Itisnoteasyforhimtowinthefirstprize.
Itisimpossibleforpeopletoliveonthesun.
5getcleanedup=becleanedup
Homework:
Thethirdperiod
TeachingAims:
1Reviewthenewwordsandexpressionsandthegrammaticalpointsinthechapter
2DosomeExercises
TeachingImportantPoints:
Masterhowtotalkaboutamounts.
TeachingDifficultPoints:
1Thedifferentusageofafew,alittle,fewandlittle
2Howtounderstandthelisteningandthesequencesofevents.
TeachingProcedures:
1:
Revision
1Showthenewwordsofchapter6on.Firstaskastudenttoreadaloud,correctthewrongpronunciation,andthenaskthewholeclasstoreadtogether.
2Readthetextafterthetapetounderstanditbetter
2:
AskstudenttodothevocabularyexercisesC1,C2andC3.
3:
Listening
Putthepictureintorightorder.
1Oneday,Suzy'smothergavehe-ryuoannecoin.Itwasratherdirty,soSuzyputitinthesinkandwashedit.Whenthecoinwasniceandclean,itsuddenlystartedtalkingtoSuzy.
2Thislisteningisaimedattrainingstudents'understandingoftheorderoftheevents.Askthestudentstoseehowthedroptravelsin‘Watertalk'.
3Playtherecordingonce,whilestudentslistenbutdonot
Writeanything.Tellthemtolistenforthesenseandthemainpoints.Thenreplaytherecordingandstudentsmustcompletetheexercise.Replayitathirdtime，explaininganyproblems.
4:
Gramma:
Learnhowtotalkaboutamounts
1Hetookafewbiscuits.
Hetookalittlebutter.
*Comparethetwosentencesandaskthestudentstodiscussin
pairstotellthedifferences.
*Explainthat“alittle”andm'eafew数量很少的,“afew”
用于修饰可数名词,“alittle修”饰不可数名词，它们都表示肯定的含义
*afew=some,severalalittle=some
eg.Iwantalittlecoffee.
Givemeafewapples.
2Hetookfewbiscuits.
Hetooklittlebutter.
*Comparethetwosentencesandaskthestudentstodiscussinpairstotellthedifferences.
*Explainthat“few”and“little数量少到几乎没有,“few”
修饰可数名词，“little修饰不可数名词。
都含有否定涵义。
*few=notmanylittle=notmuch
eg.Littleofhistimeisspentonbooks.他很少花时间在书本上。
Therearefeweggsinthefridge,arethey?
冰箱里几乎没有鸡蛋，是吗？
3“few”,“afew”,“little”既可做形容词又可做代词。
eg.-Doyouwantanycoffee?
--Alittle,please.
quiteafew=many
eg.IhavecollectedquiteafewstampsabouttheOlympics.（=manystamps）
4“alittle”“laittnled”canbeusedasadv.
eg.Hetalkedlittleabouthisfather.他很少谈论他的父亲。
Itrainedalittleduringthenight.夜里下了点雨。
Timeisverylimited.Couldyoupossiblydrive_alittle_faster?
Thereareabout50guestscoming.Weneed_afew__morechairs.
Homework:
Thefourthperiod
TeachingAims:
1Reviewnewwordsandexpressionsinthechapter
2Furthertrainstudents'abilityoftalkingaboutamounts
3DosomeExercises
TeachingImportantPoints:
Mastertheusageofalotof,much,many,no,none
TeachingDifficultPoints:
1Thedifferentusageofaloto
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