人教版高中英语必修二unit 3 computers period 2 warming up and reading.pdf

Unit3Computers

Period2Warmingupandpre-reading

教学设计

I.Teachingcontents：Warmingupandpre-reading

II.Teachingaims：

1）Toinspirestudentswithstronginterestinthecomputersandimprove

students’Englishability.

2).LearnhowtodescribedifferentkindsofcomputersinEnglish.

3).Tolearnandrememberthefollowingwords:abacus;calculator;

PC;laptop;PDA;robot;development;universal;

III.KeypointsDifficulties

Keypoints

Talkaboutthedevelopmentofcomputers.

Difficulties

Rememberthenewwords.

IV.Teachingprocedure:.

StepI:Greetings

Theteachergreetthewholeclass.

StepII:Wordspreview:

Teacherleadthestudentspreviewsomenewwordsofthisunit.

StepIII:Warmingup

1.Warmingupbyguessingtheriddles.

(1).Iamveryoldnow.Iwasbornin.Manypeopleusedmefor

calculatinginthepast,butnowIamabitlonelybecausetheydon’tlike

menow.

(2).Icanbeusedforcalculating.Besides,Icanalsobeusedfor

watchingDVD,sendinge-mailandcommunicatingthroughtheInternet.

However,IamnotaPC,becauseI’msmallenoughforyoutotakeme

withyou.

(3).IamsosmallinsizethatIcanfitinyourhand.Iusuallyhavea

smallscreenusuallybiggerthanadigitalphone,howeversmallerthan

thesmallestlaptop,I’magreatwaytostoretelephonenumbers,access

theinternet,makecalculations,andsoon.

(4).Iamverysmall.Icanbeusedforcalculating.In,alotof

studentsusemewhensolvingmathematicalproblems.

(5).Iamverybig.Scientistsusemetosolvesome