必修一英语Module5单元教学案外研版.docx
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必修一英语Module5单元教学案外研版
2017年必修一英语Module5单元教学案（外研版）
dule5
Teahingplan
Perid1
Intrdutin≈VabularandSpeaing
Teahingais:
Tintrduesegeneralsiene
2Tlearnserdsrelatedtthetheefthisdule
3Tdevelpspeaingabilitbpratiingsaingthenubers,espeiallthefratins
Iprtantanddiffiultpints:
Arusethestudents’interestsandlveinsiene
2Enablethestudentstunderstandseeleentsabuttheheistrlab
3aethestudentsnhtreadthenubers
Teahingpredures:
Intrdutin
Ativit1
TheaiftheativitistasthestudentstfinishthequizabutgeneralsienetarusetheirinterestinsieneTheativitanbedneasflls:
Firstl,asthestudentstgthrughthefllingthequizandaetheirhientheirn
Quiz:
Huhdunabutgeneralsiene?
aterexists__________
asaslid,aliquidandagas
asaslidandaliquidnl
2henuheataetal,itill___________
expand
ntrat
3Steelisixturef_____________
irnandthersubstanes
irnandxgen
4_______________ftheearth’ssurfaeisater
T-thirds
50%
5Thedistanefthesunfrtheearthis______________ileters
25,500
150,500,500
6Theearthis46______________earsld
illin
billin
7Theearthis______________then
tieaslargeas
frt-ninetieslargerthan
Thenputthestudentsinpairstparetheiransersandallbatheansersfrthelass
Finallasthetlistentthetapeabuttheabvequizandhetheiransers
Ansers:
1a;
2a;
3a
4a;
5b;
6b;
7b
Ativities2≈3
TheteaheranprepareseardsabutdifferentthingsfrthelassatfirstBefreshingthestudentstheards,theteaheransatthehlelass:
Thingsanbedividedintthreeinds,natural,an-ade,andeithernaturalran-ade,nI’llshuseardsinhand,anutellehiharenatural,an-aderbth?
Afterthis,theteaheranntinuetsatthehlethelass:
anugiveseexaples?
ThendividethehlelassinttbiggrupstpeteTheteaheranastheSstspeautasanexaplesaspssibleandritedntherdsinthetablentheblabardasflls:
Natural
Eg:
d,------
an-ade
Eg:
glass,------
Eithernaturalran-ade
Eg:
ater,------
Finall,astheSstpentheirbsatPage41andreadtherdsinthebxaludIfpssible,theanluptherdstnhattheeanfurse,theabvepetitinillntinue,thatistsa,atthisent,theteaheranastheSstputtherdsinthebxnPage41intheirbsintheabvetable
VabularandSpeaing
Ativit1
TheaiftheativitisthavethestudentsnhtreadthelngnubersStheativitanbedneliethis:
Befredealingiththeativit,theteaherhadbetterbuildupalngnuberb
havingthestudentssaaninreasingsequene,eg:
3
three
33
thirt-three
333
threehundredandthirt-three
3,333
threethusand,threehundredandthirt-three
33,333
thirt-threethusand,threehundredandthirt-three
Atthistie,stftheSsillntheafreadingtheselngnubers:
heretsa“illin”,“thusand”,and“hundred”Sinrdertnslidatehattheustlearned,theteaheranpratiesaingthenubersatthetpfPage42iththestudentstaesuretheSshavetherretintnatin
ThenastheSstgthrughtherestfthenubersinAtivit1andfindtheerrrsindividuallardingtthediretins
Finalltheteaherallsbatheansersfrthelass
Ansers:
1）Therd“thusand”isissingafter“furhundredandsevent”;
2）Therd“ne”isissingbefre“hundredillin”
Ativit2
Firstl,theteaherpintatthefratinsandsatheinEnglishAtthesaetietheteaherhavetheSsrepeattheafterhirher
ThentheteaherandtheSsaeananalsisabuttherulesfreadingfratinsinEnglishtgether
FinalltheteaherastheSstreadtherestfthefratinsinAtivit2nPage42intheirbsinEnglishntheirnIfneessar,theteaheranritedntherretansersntheblabardthehattheread
Ansers:
1t-fifths;
2five-eighths;
3nine-tenths
4three-eighths;
5five-sixths
Ativit3
Theteahershuldintrduetheneptfperentageatfirst,
andthentheteaherritednseperentagesntheblabardandreadtheutinEnglish
Eg:
35%→thirt-fiveperent;
50perentequalsahalf
ThenhavetheSspratiereadingaludthefllingperentages:
40%;55%;85%
FinallhavetheSsrinpairstdesribethefratinsinAtivit2asperentagesinEnglish
Ansers:
1Aquarteristhesaeas25%;2nethirdisthesaeas3333r%;3Fur-fifthsisthesaeas80%;4netenthisthesaeas10%;5Three-quartersisthesaeas75%;6nehalfisthesaeas50%;7T-thirdsisthesaeas6666r%;8T-fifthsisthesaeas40%;9Five-eighthsisthesaeas62%;10Nine-tenthsisthesaeas90%;11Three-eighthsisthesaeas37%;12Five-sixthsisthesaeas8333r%
Her:
Previethereadingpart
2
rinpairstfinishAtivities4≈5nPage43
Perids2≈3
Reading≈Vabular
Teahingaisanddeands:
⒈Tlearnabutsevabularandnledgerelatedtsieneandexperients
⒉Tnabutseetalsandgettntheirainusesinurlives
⒊TaethestudentsnhtdasipleexperientandritethereprtabutitinEnglish
⒋Tdealithalltheativities1-6abutpassageAandpassageBnpage44-45
⒌Tdevelpstudents’expressinabilitasellasreadingabilitbpratiingthesetpassages
⒍Traisestudents’interestsinsieneandfrtherigrussientifiattitude
Teahingepints:
⒈Taethestudentsunderstandandgraspthevabularandnledgerelatedtsieneandexperients
⒉Tenablethestudentstnhtreadsepassagesabutsiplesientifiexperients
Teahingdiffiulties:
TaestudentslearnhtriteanexperientreprtinEnglish
Teahingethds:
⒈uniativeApprah
⒉Tas-basedApprah
⒊Aural-ralApprahiththehelpftheulti-ediaputerandthererder
Teahingaids:
ulti-ediaputer;
Sftare;
PerPint;
Rerder
Teahingpredures:
Step1:
Lead-in
Atfirstshthestudentsthepiturefalabiththehelpfputer
Thendesignthefllingquestinsandasthestudentstdisusstheingrups:
Areuinterestedindingsientifiexperients?
2
Suppseuanttdaheialexperientabutseetals,duthinitisneessartnabuththereatiththersubstanes?
3
Inrdertarrutanexperientsuessfull,hatshuldupreparefrit?
ThisstepistarupthestudentsandraisetheirintereststspeaEnglishinlassBeauseallthesequestinsareverlsetthestudents’daillifeandstuding
Step2：
Pre-reading
Teaher:
Sineuareinterestedindingsientifiexperients,nlet’sgettnsevabularandnledgerelatedtsieneandexperients
AtthesaetieIantpeutsepituresabutseetalsnthesreeniththehelpftheputerasflls:
⑴ptassiu
⑵sdiu
⑶aliu
⑷agnesiu
⑸aluiniu
⑹zin
⑺irn
⑻pper
AsItpeuteahftheabvepitures,Ianasthestudentsliethis:
hat’sthis?
Andhatanitbeusedfr?
Atthisentthestudents’interestsareprbablapprahingaliaxSIfurtherastheliethis:
Duanttnreabuttheseetals?
Anddunheanusetheseetalsbetter?
ell,thisishate’llstudversn
Thisstepisepledtreatealanguageenvirnentfrstudents’uniatinandarusetheirinterestsinreadingpassageAandpassageBnpage44-45
Step3:
Reading
PassageA
T:
ell,let’sreadthrughpassageAiththetapefitverquilttrtathitsainideaThenfinishAtivit2npage44andgiveurreasns
Next,astheSstreadpassageAverarefulltfinduttheansersinAtivit3npage44Finishthisativitbulti-ediaputerItanbedesignedasflls:
hihftheetalsinthetablereatsthestithxgenandater?
Ptassiu,aliuandsdiu
2
hathappenshenuheataliuinxgen?
Itburnstfranxide
3
hihetalsreatithstea?
agnesiu,aluiniuandzin
4
Desirnhaveaslrfastreatinithstea?
Ithasaslreatin
5
Despperreatithater?
N,itdesn’t
PassageB
T:
ell,frpassageAeanseehinterestingtheexperientabutthereatinfetalsis!
Butdunheanarrutaheialexperientinalabsuessfull?
Andhatistherretrdertdesribeasientifiexperient?
AstheSstlatAtivit1npage44andgivetheabut2inutestdisussitThenllettheansersfrtheAtthesaetietpeuttherretansernthesreeniththeputerasflls:
T:
N,let’setsee“Asiplesientifiexperient”!
ThenplathetapefpassageBfrthestudentsandasthetreadthepassageiththetapequilandfinishAtivit4npage44
Inrdertleadthestudentstreadthetextverarefull,thefllingtas-basedquestinsanbesignedtasthetanser:
⑴anuguesstheeaningftherd“apparatus”thrughthentext?
Haveunnallftheapparatusesfthisexperient?
⑵Inthesendpartftheexperient,hustubiltheater?
Andthenhduaddseilttheater?
FrQuestin1,sestudentsabefeelstrangetseapparatusesIfs,thefllingpituresanbetpedutiththehelpfputerthelpSstnabut:
TheninrdertaetheSsnslidatehatthereadinpassageBandheifthehaveunderstdtheexperientverell,Ativit5npage46anbetpedutnthesreeniththehelpfputerasatas-basedativit。
Step4：
Disussin
⒈Duthinitiseasrdiffiultfrutarrutasientifiexperientell?
Andanudesribehtditsuessfullinsiplerds?
⒉Ifuanttlearnsienesubetsell,hatqualitiesduthinushuldhave?
ThisstepistnslidatehatSshavelearntinthislessn,inadditintpenetratingtheraleduatintlvesieneandfrtherigrussientifiattitude
Her:
⒈riteapletesientifiexperientreprtinsipleEnglish
⒉Underlinethelanguagepintsuan’tunderstandinthetext
⒊GntreadtheUTULRNERreadingpassagefthisdulenPage49
Teahingsuar:
⒈e’velearntabutsevabularandnledgerelatedtsieneandexperients
⒉e’vefinishedstudingpassageAandpassageBnpage44-45
⒊e’vennhtarrutasientifiexperientinalabsuessfullandriteapletesientifiexperientreprtinsipleEnglish
Perid4
Graar:
Degreesfparisn
Teahingbetives:
Taethestudentsgrasptheusagefthedegreesfparisn
Iprtantanddiffiultpints:
⒈ThavetheSsunderstandallindsffrsfdegreefparisn
⒉Tenablethestudentstnhtusethedegreesfparisnrretl
Teahingpredures:
Step1Lead-in
PresenttheSsthefllingsentenesntheBbandasthetdisverhatindfdegreesfparisn
⑴aspeaEnglishasfluentlasT
⑵Thisshlisbetterthanthatne
⑶Thisbisreinterestingthanthatne
⑷Thisrislessbeautifulthanthatne
⑸Theeatherisgettinghtterandhtter
⑹Theharderustud,thereuillaeprgress
⑺Hershardestinhislass
Thenalltheansersfrthelass
Ansers:
1原级;2、3、4、5、6、均为比较级;7最高级
Step2Graarstruture
FirstlastheSstaeasuarabutthestruturesfthedegreesfparisnThenhetheansers
Ansers：
3frs——原级、比较级和最高级。
Step3DetailedNtesabutGraarUsage
⒈原级的构成和用法
）构成：
形容词和副词的原级形式是形容词和副词的原形。
2）用法：
当表示双方在程度、性质、特征等某方面相等时，用“as+原级ad/adv+as”的结构；当表示双方不相等时，用“ntas+原级ad/adv+as”的结构；当表示一方是另一方的若干倍时，用“倍数+as+原级ad/adv+as”的结构。
例如：
①Heisastallasa//IspeaEnglishasfluentlasu
②urbieisntasneashers
③Thisradisthreetiesaslngasthatne
⒉比较级和最高级的构成和用法
）构成：
⑴规则变化
①单音节形容词以及少数以－er,－r结尾的形容词和副词加＂er＂，＂est＂．例如：
fast-faster-fastest;
fe-feer-feest;
great-greater-greatest;
lever-leverer-leverest
nrr-nrrer-nrrest
②以e结尾的单音节形容词和副词后以及少数以-ble,-ple结尾的双音节形容词和副词后，加＂r＂，＂st＂．例如：
large-larger-largest,
able-abler-ablest,
siple-sipler-siplest
③以一个辅音结尾的单音节形容词，其前面的元音字母发短元音时，该辅音字母要双写，然后加＂er＂，＂est＂．例如：
ht-htter-httest
④以辅音加结尾的形容词和少数不是形容词加l构成的副词要将改写为i，再加＂er＂，＂est＂．例如：
eas-easier-easiest,
happ-happier-happiest
earl-earlier-earliest
⑤一般双音节词、多音节形容词和副词在原级前re或st．例如：
beautiful-rebeautiful-stbeautiful;
arefull-rearefull-starefull
⑥少数单音节或双音节形容词也加re和st构成比较级和最高级。
例如：
tired-retired-sttired;
pleased-repleased-spleased;
rded-rerded-strded
⑵不规则变化
原级
比较级
最高级
gd,ell
b
升级会员 