高二英语unit11教案4Word文档下载推荐.docx
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高二英语unit11教案4Word文档下载推荐.docx
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1.aprojector
2.acomputer
预习要求
Recitethenewwords
教师活动内容、方式
学生活动内容、方式
旁注
StepILeadin
T:
Goodmorningafternoon,class!
Ss:
Goodmorningafternoon,Mr/Ms…
Inthisclass,wearegoingtostartUnit11Scientificachievements.Nowpayattentiontothetwowords.Willyoupleasetellmehowthetwowordsareformed?
Observethemcarefully;
canyouexplainhowtheyareformed?
Excellent!
Thatishowthetwowordsareformed.Thebasicpartofanywordistheroot;
toit,youcanaddaprefixatthebeginningand/orasuffixattheendtochangethemeaning.Forexample,intheword"
unflattering,"
therootissimply"
flatter,"
whiletheprefix"
un-"
makesthewordnegative,andthesuffix"
-ing"
changesitfromaverbintoanadjective(specifically,aparticiple).Thisisthegrammarwearegoingtolearninthisclass.(ShowWordFormationonthepowerpoint.)
StepIIGrammar
Askstudentstoobservethegivenwordscarefullyandfindouthowwordsareformed.
Howdolearnersimprovetheirvocabulary?
Therearenosupershortcutstovocabulary,buttherearevariousformsofsupport.Hereisoneexample.Increasingyourvocabularyissoimportantthatyoujustcan'
tforgetaboutit.Don'
tburyyourheadinthesand.OK..Pleaselookatthefollowingwordsandtellhowtheyareformed.(ShowthefollowingwordsonthePowerPoint.)
affixinfixprefixsuffix
Teacherexplainsthefollowing.
Whatdothesewords(nouns)haveincommon?
Allofthemcontaintheroot“fix”.
Well,theydohaveanumberofthingsincommon.Let'
ssettleforthemostobvious,the'
fix'
attheend.Soifwesplitthem,thisiswhatweget
af+fixin+fixpre+fixsuf+fix
(ThesewillbeshownonthePowerPoint)
S1“Scientific”istheadjectiveformof”Science”.
S2:
“Achievement“isthenounformof“achieve”.
S3:
”Science”isanoun,ifweadd–fictoit,thenwegetitsadjective.
S4:
“achieve”isaverb.Ifweadd–menttoit,wegetitsnoun.
HerearesomeofthemostcommonLatinprefixes(forthemeaningsoftheLatinroots,lookupthewordsinagooddictionary):
(ShowthefollowingonthePowerPoint.)
ab(away)abstain,absent,absolve
ad(to)adverb,advertisement,advance,adjoin
in/il-/im-/ir-(not)incapable,indecisive,intolerable,illegal,impossible,irrugular
inter(between,among)international,interactioninterdependent,interprovincial
pre(before)prerecorded,prefaceprefer
post(after)postpone,postscript,postwar
sub(under,notquite)subsoil,subscription,suspect,subway,subnormal
trans(across,toachangedstate)transfer,transit,translate,transport,transform
Whatdoes'
mean?
Fixmeansattachto,fasten,stick,glue.
Whatabout'
af'
'
in'
pre'
suf'
?
in'
and'
areunderstandable,aren'
tthey?
'
aroom,'
asentence,'
aword.
meansbeforelikeinpre-war,pre-school,premature.
Sowhatdoinfixandprefixactuallymean?
infix-toattachsomethinginside(aword).prefix-toattachsomethingatthebeginningof(aword)
Whatabout'
?
That'
sabitmoredifficulttoexplain.'
isactuallyfromthebeginningtheLatinword'
ad'
andthemeaningisthesameastheEnglishwordadd.Add4and5andyouget9.
istheLatinword'
sub'
likeinsubmarine,subway,suburb.Themeaningisunder,after(outside).
Whyhavethedin'
andthebin'
changedintof?
Thereasonisreallyquitesimple.'
adfix'
subfix'
aredifficulttopronounce.Thereiseconomyineverything!
Yousimplyleaveoutthedandtheb,butinordertomarktheirexistencethewordsarespeltwithanextraf.
Sowhatdoaffixandsuffixactuallymean?
affix-toattachsomethingto(aword)
suffix-toattachsomethingattheendof(aword)
Wehavenowfixedthefixes,haven'
twe?
affix-somethingyouadd(stick)toaword
Therearethreekindsofaffixes:
addedinsidetheword-infix
addedatthebeginningoftheword-prefix
addedattheendoftheword–suffix
What'
sthisgoodforthen?
Well,therearethousandsofwordswithprefixesandsuffixes.Theinfixesarefewerandlessusefultoyou.
TheEnglishvocabularybasicallyconsistsofwordsofLatinandGermanicorigin.Thereareprefixesinbothgroups.
Ifyouknowthebasicmeaningofaprefixorasuffixyoucanoften'
guess'
themeaningofanEnglishword.TherearealimitednumberofLatinprefixesandsuffixes.Ifyoulearnthemeaningofthem,andlearntorecognizetheminEnglishwords,youwillincreaseyourvocabularymuchfaster
StepIIIPractice
Areyoureadyforsomeexercises?
OpenyourbooksandlookatPage6.Let’sdotheexercises.Let’sdoExercise1first.Howarethesewordsformed?
(OrshowthefollowingwordsonthePowerPoint).
StepIVWorkbook
StepVWORDFORMATIONEXERCISES
(Ifthereisn’tenoughtime,pleaseprintitoutandgivethehandoutstostudentsashomework)
I’mverygladyou’vedonetheexercisesquitewell.Wouldyouliketotrysomedifficultones?
Nowlookatthefollowingexercises.Youaregiven8minutes.Thenwewillchecktheanswerstogether.Ifyouhaveanydifficulty,youmayworkwithyourpartnerorrefertoadictionary.
(Showthefollowingexercisesonthepowerpoint.)
Usethewordattheendofeachgaptoformanewwordwithwhichtofillthegap.Whiledoingthisexercise,lookforclueswhichtellyouwhatkindofwordismissing(adjective,noun,verb,adverb).Makesuretotakeintoconsiderationformsusingvariousprefixesandsuffixes,aswellasnegativeforms.
international=inter-+nationaltelephone=tele-+phone
mankind=man+kindbroadband=broad+band
extremely=extreme+-lymanned=man+-ed
hi-tech=high+technologyemail=electronicmail
IT=informationtechnologyCSA=ChineseSpaceAgency
S1:
Ithinkinternationalandtelephoneareformedinthesameway.Weaddprefixinter-tonationalandtele-tophone.
Good!
Whatabouttheothers?
Mankindandbroadbandareformedinthesameway.Eachismadeupoftwowords.
Extremelyandmannedareformedbyaddingasuffix.
Hi-techistheshortenedformofhightechnologyande-mailistheshortenedformofelectronicmail.
S5:
ITstandsforinformationtechnology.Weusethefirstlettersofthetwowordstoformanewone.WeusethefirstlettersofChineseSpaceAgencytoformthewordCSA.
T;
Welldone.Soweknowthatwordsareformedintheseways.Whenyoucomeacrossanewword,youcaneasilyguessthemeaning.Ok,let’scometoExercise2.
Dealwiththerestofexercisesinthesameway.
6-2Warmingup&
Speaking
1.TargetLanguage:
a.重点词汇和短语solarenergy,breakthrough,organ
b.交际用语Practiseexpressingintentionsandwishes.
IfIgotthemoney,Iwould……Myplanisto…….Ihopethat…….
Iwant/wish/hope/intend/planto……I’dliketo……I’mthinkingof……
2.Abilitygoals:
Enablestudentstotalkaboutscientificachievements.Helpthemlearntoexpressintentionsandwishes.
3.Learningabilitygoals:
Talkaboutgreatscientificachievementsthathavechangedtheworld.Practiseexpressingintentionsandwishesbytalkingaboutwhichscientificprojectisthemostimportant.
Teachingimportantpoints:
Talkaboutgreatscientificachievements.Learnthepatternsusedtoexpressintentionsandwishes.
Teachingdifficultpoints:
Howtoexpressintentionsandwishes.
ataperecorder,aprojectorandacomputer
旁注
StepIRevision
Checkthehomework.Checktheanswersontheworkbookwiththewholeclass.
Asksomestudentstonamesomegreatachievements.
StepIIWarmingup
ShowthephotosofsomegreatscientificachievementsthathavechangedtheworldonthePowerPoint.Dividestudentsintogroupsandaskthemtodiscusswhichoneisthemostimportantandwhattheseachievementshaveincommon.(TheexercisesinwarminguponPage1).Studentsmayhavedifferentopinions.Themostimportantthingistoencouragethemtothinkandexpresstheiropinions.
Pleaselookatthesegreatachievementsandworkingroupsanddiscussthefollowingquestions.Youmayhavedifferentanswers.Butyouwillhavetotellusyourreasons.(ShowthefollowingquestionsonthePowerPoint.)
Fiveminuteslaterasksomestudentstospeakouttheiropinion.
StepIIISpeaking
Ok.Supposeweareintheyearof2015.Youarescientists.Youareworkingondifferentprojects.Allofyouneedmoneyandwanttogetmoneytocompleteyourproject.Youwillintroduceyourprojectandexplainwhyitisthemostimportant.Onememberwilllistentoallthescientistsandaskquestions.Attheendofthediscussion,heorshemustdecidewhowillgetthemoneyandwhy.NowturnyourbookstoPage2,lookattheSpeakingpartandworkingroupsoffive.Pleasedon’tforgettheusefulexpressions.Youaregivenfiveminutestodoit.ThenIwillasksomegroupstoactitout.
ShowtheusefulexpressionsonthePowerPoint.
Sampleofthespeaking:
1.Official:
Iknowallofyouhaveyourownreasons.
1.Amongthegreatscientificachievementsthathavechangedtheworld,whichonedoyouthinkisthemostimportant?
Why?
2.Whataresomeotherscien
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