高二英语unit11教案4Word文档下载推荐.docx

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