教案精选高三英语《复合句》教学设计.docx
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教案精选高三英语《复合句》教学设计
教案精选:
高三英语《复合句》教学设计
教案精选:
高三英语《复合句》教学设计
Step1Lead–in
(ShowsomepicturestoattracttheSs’interestsaboutthetext.)
Step2Reading:
A.AsktheSstodosome“TrueorFalse”exercises
1.Somebirdswillflyawaytothesouthwhentheweatherturnscold;someanimalshibernateinthecoldwather.(True)
2.Animalshibernateonlyintheearth.(False)
3.Noneofthewarm-bloodedanimalsneedtohibernatebecausetheyleadanactivelifewhichkeepsuptheirbodytemperatureeveninverycoldweather.(True)
4.Ahibernatinganimaldoesnotbreatheandcannotfeelanypain.(False)
B.Questionsandanswers:
1.Whydon’tsomewarm-bloodedanimalshibernateinthewinter?
(leadanactivelife,keepup,bodytemperature)
2.Whydocold-bloodedanimalshibernate?
(Whentheairtemperature,belowfreezing,bodytemperature,drop,cannotmoveabout;almostnofoodinthewinter)
3.Howwouldyourecognizethatananimalishibernating?
C.Readingcomprehension:
1.Thetextmainlytellsusthat________.
A.hibernationismorethansleep
B.warm-bloodedanimalswilldothingsdifferentfromcold-bloodedanimalsinwinter
C.someanimalslivethroughthewinterbyhibernationorhalf-hibernation
D.animalsusedifferentwaystoprotectthemselvesagainstthecold(key:
C)
2.Whydosomeanimalssleepunderthesnow?
A.Becausetheypreferthecoldairinthesnow.
B.Becausetheairinloosesnowwillhelptokeepthecoldout.
C.Becausetheycanadjust(调节)theirbodytemperaturetheretofitforthecoldweather.
D.Becausetheyarewarm-bloodedanimals.(key:
B)
3.Whichsentencecarriesthemainideaofthesecondparagraph?
A.Sentence1.B.Sentence2.C.Sentence3.D.Sentence4.(key:
A)
4.Whycanthewolfkeepawakeinwinter?
A.Becauseitisacold-bloodedanimal.
BBecauseitprefersmovingbynature.
C.Becauseitcankeepupitsbodytemperatureevenincoldweather.
D.Becauseithastogohuntingasaresultoflackoffoodforthewinter.(key:
C)
5.Whydofrogsgotosleepunderthemudinwinter?
A.Becausetheycanescapefromtheirenemiesunderthemudandtheairtherewillkeepthecoldout.
B.Becausetheairunderthemudwillkeepthecoldoutanditiscomfortablethere.
C.Becausetheyfeelcomfortablethereandtheycangetfoodeasily.
D.Becausetheyhaveenoughtoeatthere.(key:
D)
6.Wewillknowananimalishibernatingif_______
A.ittouchescoldandisbreathingveryslowly
B.itissensitivetopain
C.itstemperaturedropstobelowzerocentigrade
D.itdoesnotmove(key:
A)
7.Whycanahibernatinganimalmanagetolivethroughthewinter?
A.Becauseithardlymakesanymovementandbreathesveryslowlyandithasenoughfatstoredinitsbody.
B.Becauseithasalreadystoredsuppliesoffatinitsbody.
C.Becauseitwillnotuseenergywhilesleepingsincetheynevermakeanymovementthen.
D.Becauseitdoesn’tbreatheatall.(key:
A)
8.Whydoesthebearstophibernatingonwarmwinterdays?
A.Becausethewarmthmakesitthinkthewinterhasgone.
B.Becauseithastoeatsomefoodforthenextlongsleep.
C.Becauseitfeelscoldandwantstowarmitselfuponwarmwinterdays.
D.Becauseitisgoingtohuntsomethingonwarmwinterdays.(key:
A)
9.Whydoesasquirrelhidenutsbeforethebeginningofwinter?
A.Becauseitwilleatalotinwintertokeepwarm.
B.Becauseitishardtofindfoodinwinter.
C.Becauseitneedstoeatalottohibernate.
D.Becauseitneedsnutstofightagainstitsenemies.(key:
B)
10.Wehumanbeingsareabletokeepthecoldoutbecause________
A.wearewarm-blooded
B.wearecleverenoughtobuildhousesandtowearclothes
C.wearecold-blooded,andwedonotneedtohibernate
D.forhumanbeings,hibernationwillusemoreenergy(key:
A)
Step3:
languagepoints:
本单元重点句型
(1)Hibernationismorethansleep.
(2)Peoplewhofindhibernatinganimalsasleepoftenthinkthattheyaredead.
(3)Youcantouchit,orevenpullitstail,withoutcausingittomoveorwakeup.
(4)Hibernatinginthatway,theanimalscansleepallthroughthewinter.
(5)Thesecondisconnectedwiththemainusethebodymakesoffood—tosupplytheenergyformovements.
(6)Wehaveseenthathibernatinganimalreducesmovementstofarbelowtheordinarylevel.
(7)Theanimalhardlymakesanymovement,hardlyusesanyenergy,andhardlyneedsanyfood.
(8)Someanimals,includingsomebears,onlyhalf-hibernate.
难句解析:
1.Theygotosleepinallkindsofplaces.它们到各种各样的地方去睡觉。
gotosleep,fallasleep与sleep,这三个词(组)都有“睡着”之意。
gotosleep意思是“睡着,去睡觉”,fallasleep意思是“睡着了,酣睡”,它们都表瞬间动作,如表持续性动作或延续性状态,要用动词sleep。
e.g.
①Ifounditverydifficulttogotosleep.我发现很难人睡。
②Soonhefellasleep,forhewasverytired.他很累,很快就睡着了。
③wehaveslept(for)eighthours.我们已睡了八个小时。
2.Theyleadanactivelifewhichkeepsuptheirbodytemperatureeveninverycoldwinterweather.
他们生活得很活跃,即使在严寒的冬天也能保持正常的体温。
习惯用法
(2)keepup保持,维持,继续,e.g.
①LetshopethesunnyweatherkeepsupforSaturdaystennismatch.
但愿星期六网球比赛时还是这样的好天气。
②We。
Arehavingdifficultykeepingup。
our。
mortgagepayments.我们难以继续支付分期偿还的抵押货款。
③Ifyouwanttobeaperformer,you11havetokeepupyourpiano.如果你真想成为演奏家,就得坚持练习钢琴.
3.Thenitasnochoicebuttoliedownandsleep.于是,别无选择,它们只好躺下睡觉。
havenochoicebuttodo表“别无选择”之意。
e.g.
HaveIanychoicebuttodoasyoutellme?
除了按你吩咐的去做外,我还有别的选择吗?
表示“别无选择只好做……”之意,除了可用havenochoicebuttodo…来表达外,还可用下列固定搭配:
(l)candonothingbutdo/cannotdoanythingbutdo,e.g.
Icandonothingbutaccepthisdemand.我只好接受他的要求。
(2)thereisnothinglefttodobutdo…,e.g.
Therewasnothingleftforhertodobutcry.她别无它法,只有哭。
(3)can’tbutdo…,e.g.
Icouldnotbutadmitthathewasrightand。
Iwaswrong.我不得不承认他对了,我错了。
疑难点拨:
1.Hibernationismorethansleep.冬眠不仅仅是睡眠。
句中的morethan相当于notonly。
意为“不仅仅”。
e.g.
Heis。
moreateacher.Heisagoodfriendofmine。
他不只是老师,还是我的益友。
2.Peoplewhofindhibernatinganimalsasleepoftenthinkthattheyaredead..人们看到处于冬眠状态的动物,常常以为它们死了。
这是一个复合句。
(l)who-clause是定语从句修饰people,that-clause是宾语从句作think的宾语。
(2)asleep是表语形容词,在句中一般只作表语,宾补,或后置定语,这样的形容词还有alive,alike,alone,awake等。
3.Youcantouchit,orevenpullitstailwithoutcausingittomoveorwakeup.你可以摸它,甚至可以拉它的尾巴,这也不会使它动一动或醒过来。
这个句子可改写成:
Evenifyoutouchitorpullitstail,youcan’tcauseitmoveorwakeup.
4.Hibernatinginthatway,theanimalcansleepallthroughthewinter.
用那种方式冬眠,动物可以睡过整过冬天。
句中的hibernatinginthatway是现在分词短语在句中作状语,相当于astheyhibernateinthatway。
5.Wehaveseenthathibernatinganimalreducesmovementstofarbelowtheordinarylevel..
冬眠动物的活动量减少到远远低于一般水平。
(1)句中的farbelow意为“远远低于,比……低得多”。
e.g.
InwinterthetemperatureofHarbinisfarbelowthatofWuhan.
冬天哈尔滨的气温比武汉的低得多。
(2)句中的reduce..to作“减少,使处于……状态”解。
e.g.
①Thehousewasreducedtoashesbythebigfire.那场大火把屋子化为灰烬。
②Themanwasreducedtobeggingforfood.那男人沦落到讨饭的地步。
Step4:
Fillinblanks.
1.Theygotosleepinallkindsofplaces.Redsquirrelsdisappearinsidetrees,bearsusecaves,frogsgodeepunderthemud,andmanyotheranimalsdigholesintheearth.Agoodmanyanimalssleepunderthesnow.Thereisalotofairinloosesnow,andthishelpstokeepthecoldout.
2.Hibernationismorethansleep.Itisaverydeepsleep.theanimal’stemperaturedropstojustoverzerocentigrade,anditsheartbeatsveryslowly.Peoplewhofindhibernatinganimalsasleepoftenthinkthattheyaredead;thebodyfeelsverycold,andtheanimalmaybreatheonlyonceeveryfiveminutes.Ahibernatinganimalcannotfeelanypain.Youcantouchit,orevenpullitstail,withoutcausingittomoveorwakeup.
3.Hibernatinginthatway,theanimalcansleepallthroughthewinter.Youmightwonderhowitmanagestolivewithuteatingforsomanymonths.Theanswerliesintwofacts.Thefirstisthatithasstoredsuppliesoffatinitsbodyduringthesummerandautumn.Thesecondisconnetedwiththemainusethebodymakesoffood-----tosupplytheenergyformovement.Wehaveseenthatthehibernatinganimalreducesmovementtofarbelowtheordinarylevel.Eventhemovementsoftheheartandlungsaregreatlyreduced.Theanimalhardlymakesanymovement,hardlyusesanyenergy,andhardlyneedsanyfood.