高中教案教案

Myschoolday教案。

七年級(jí)英語(yǔ)講學(xué)稿
預(yù)備課程Unit10課時(shí)2Reading,pronunciationandtask
一、課前預(yù)習(xí)導(dǎo)學(xué)
（1）學(xué)習(xí)目標(biāo)1.熟練掌握時(shí)間的表達(dá)、詢(xún)問(wèn)以及行為動(dòng)詞的一般疑問(wèn)句。
2.熟練表達(dá)一天簡(jiǎn)單的活動(dòng)。
3.掌握詞組halfanhourlater,from…..to…tellmeabouutyorschool
4.掌握輔音/p//b//t//d//k//g//f//v/
（2）課前預(yù)習(xí)
用所給單詞的適當(dāng)形式填空。
()1.Youcanusea_________basketinasupermarket.(shop)
()2.CanIeat______snacks,Mum?(any)
()3.Let_______goandplayfootball.(we)
()4.Whynot_________forthingsontheInternet?(look)
()5._________inthestreet,PeterandTom.(notplay)
()6.Youcan’t_________inthelibrary.(shout)
()7.Who___________apetinyourclass?(have)
()8.Thetwinsoftendo_________homeworkathome.(they)
()9.Youmustlookfortherightplace_________yourcar.(park)
()10.Wemustn’t_____________ourbagsintotheshop.(bring)_
二、課堂合作探究
找出下列各組單詞中畫(huà)線部分讀音不同的單詞。
()1.A.flyB.whyC.familyD.sky
()2.A.lateB.haveC.takeD.name
()3.A.glassB.goC.orangeD.green
()4.A.beginB.sitC.thisD.mine
()5.A.goodB.bookC.roomD.look
()6.A.hearB.nearC.hereD.where
三、課內(nèi)練習(xí)鞏固
單項(xiàng)選擇
()1.CanIhave_________snacks?Sorry,wedon’thave________.
A.some,anyB.any,anyC.some,someD.any,some
()2.________youmakeacake?No,I______.
A.Can,mustn’tB.Can,mayn’tC.May,Can’tD.Can,can’t
()3.Thisis________oldphoto,________photoisTom’s.
A.an,AB.an,TheC.a,AD.the,The
()4.Afriendof_________isapoliceman.
A.IB.meCmyD.mine
()5.Theshopsellslotsofthings______food,drinksandfruit.
A.withB.likeC.orD.and
()6.Wouldyouliketogoboating_________?
A.withmeB.withIC.andmeD.andI
()7.Jimwants________usabouthisnewschoollife.
A.tellB.totellC.tosayD.say
()8.--_____you________inthesameschool?
--Yes,we________.
A.Do,study,doB.Are,study,are
C.Are,study,doD.Do,studies,do
()9.–DoyourparentslikeCoke?
--Yes,________do.
A.heB.sheC.theyD.you
()10.Wedon’tgotoschool______SaturdaysorSundays.
A.inB.forC.onD.from
四、課后拓展延伸
根據(jù)漢語(yǔ)提示，完成句子。
1、趕快！我們上學(xué)遲到了。
__________________!We___________________________forschool.
2、幾點(diǎn)了？十一點(diǎn)二十五
What__________________?It’s___________________________.
3、你經(jīng)常和你的體育老師打籃球嗎？
________youoften_________________________yourPEteacher?
4、我們?nèi)彝砩掀唿c(diǎn)收看中央臺(tái)的新聞節(jié)目。
Ourfamily___________CCTVnews__________________intheevening.
5、我和比爾每周上五天學(xué)。
BillandI__________________________________________aweek.
6、我喜歡在午餐時(shí)和朋友們聊天。
Ilike__________________myfriends__________________________.
7、我們八點(diǎn)開(kāi)始上課
We_______________our______________________________.
8、女孩們晚上七點(diǎn)做作業(yè)。
Thegirls______________________________atseven_______________.
五、教學(xué)效果驗(yàn)收
（1）錯(cuò)題警報(bào)
（2）錯(cuò)因分析
（3）矯正補(bǔ)救
（4）教與學(xué)反思（教師與學(xué)生分別從不同角度）

相關(guān)閱讀

MODULE7Myschoolday

MODULE7Myschoolday
Part1TeachingDesign
第一部分教學(xué)設(shè)計(jì)
FunctionTalkingaboutroutines
StructurePresentsimpleI,you,we,they;prepositionsoftimeat,in,on

Listening/Speaking
Tellingthetime;identifyingschoolsubjects
Talkingaboutyourlessons

Reading/WritingDescribingaschoolday;
puttingpicturesinorder
Describingyourschoolday;
Usingconjunction:and
CultureTheschooldayintheUK
TaskTalkingaboutmyschoolday
Unit1Ilikemaths!
■Warmingup
Goodmorning,everyone!WestudyModule7today.Whatdayisittoday?Canyoutellme?Yes,itisMonday.Whatareyourlessonstoday?Doyouhavemaths,chemistry,orChinesetoday?Whichoneofthemdoyoulikebest?IlikeChineseverymuch.IloveEnglish.Idon’tlikemathsverymuch.Doyoulikemaths?Whatdoyouhaveinthisafternoon?Yes,intheafternoon,youhaveartandhistory.Now,let’sbeginournewlesson!
■Vocabulary
1Lookatthepictures，listenandrepeatthetime．
Therearefourpictureshere.Eachoneofthemshowsadifferenttime.Pleaselookatthepicturesfirst.Trytosaythetimeyourself.Nowlistentothetapeandrepeatthetimeafterit.
2Matchthepicturesandthesentences.
Lookatthesefourpictures.Canyoumatchthemwiththesentencesontheright?It’snothardwork,right?Nowlookatyourownwatch.Whattimeisitnow?
aIt’shalfpasteight.→picture3
bItssixoclock．→picture2
cItshalfpastfour.→picture1
dIt’stwooclock.→picture4
3Matchthewordswiththepictures．
Now,let’sstudysomenewwords.Herearesevenpictures.Whatdoweseeinthesepictures?ThesecondoneisaEnglishtextbook.Thesixthoneissomeglassbottlesusedforchemicalexperiment.Thethirdoneisamaninancientclothes.Theseventhonelookslikeasatellite.Canyoumatchthewordswiththepictureshere?
picture1→artpicture2→Englishpicture3→historypicture4→maths
picture5→Chinesepicture6→chemistrypicture7→science
■Listening
4Listenandread．
Nowwearegoingtolistenandread.
Daming,Betty,andLinglingaretalkingaboutsomething.Listencarefully.
Nowlet’sgoontoreadtheconversation.Whilereadingtrytocut(斷句)/thesentencesintoparts,blacken（涂黑）thepredicates,shade（加影）theconnectivesandunderline（劃線）theexpressions.
NowwritealltheexpressionsinyourExpressionBook.
5Check(√)thetruesentences.
Listenandreadthepassageonceagain.Whatcanwelearnfromthepassage?ItisFridaytoday.WhatareDaming’slessonstoday?HehasChinese,scienceandmathsinthemorning.Doeshelikemaths?Yes,Daminglikesmaths.WhataboutLingling?No,shedoesn’tlikemaths.Linglingdoesn’thavesciencetoday.Intheafternoon,shehasartandEnglish.DoyouknowBetty’slessonstoday?Pleasecheck(√)thetruesentencesnow.
1DamingandLinglinghaveaChineselessonathalfpasteight.
2Daming’smathslessonisatteno’clock.(√)
3Lingling’sartlessonisatoneo’clock.
4LinglingandDamingdon’thavehistorytoday.(√)
5Betty’ssciencelessonisathalfpastten.(√)
6Betty’sfavouritelessonisart.
Nowlistenagainandcheck.
Listenagain.Pleasepayattentiontothemistakesofthesentences.Doyouknowthecorrectanswers?
1DaminghasaChineselessonnotathalfpasteightbutateighto’clock.
3Lingling’sartlessonisn’tatoneo’clock.It’sathalfpastone.
6Betty’sfavouritelessonisn’tart.It’shistory.
■Pronunciationandspeaking
6Listenandrepeat.
Wearegoingtodoapronunciationpractice.Herearefoursoundsandsomewords.Listenandrepeatafterthetaperecorder.Payattentiontothepronunciationofthenativespeaker.
//eighttodayfavourite
//likenineChinesemy
//don’t
//about

7Answerthequestionsaboutyou．
Iwouldliketohearsomeanswersfromyouinthissection.Tellmeaboutyourlessonsplease.Whenisyourchemistrylessonthisterm?Itisatteno’clockinthemorning,right?Whataboutyourmathslesson?Whichoneisyourfavouritelesson?Whenisyourfavouritelesson?
1Whatdayisittoday?It’sMonday.
2Whenisyoursciencelesson?It’sateighto’clock.
3WhenisyourEnglishlesson?It’sathalfpastten.
4WhenisyourChineselesson?It’sateleveno’clock.
8Workinpairs．Talkaboutyourlessons.
Nowpleasetalkwithyourpartner.Justtalkaboutyourlessons.Youhavemanylessons,right?Youhaveartinthemorning.Youdon’thaveEnglishatnight.Doyoulikehistoryornot?HowmanyChineselessonsdoyouhaveinaweek?Talklikethis.Youcanusethesentencespatternsinthefollowingboxes.Youcansaymanyotherthingsaboutyourlesson,too.Forexample,whoisyourscienceteacher?Sayasmanysentencesasyoucan.
Ihaveartateighto’clock.Wehavechemistryathalfpasteleven.
WehaveChineseatnineo’clock.Idon’thaveEnglishinthemorning.
Wedon’thavehistoryintheafternoon.Ilikemaths.Idon’tlikescience.

Unit2Lessonsstartatnineo’clock.
■Warmingup
Hi,class!Youallgotoschooleveryday.Todaypleasetellussomethingaboutyourschoolday.Forexample,Iwillfirsttalkaboutmyschoolday.IamCecilia.I’mthirteenandIgotoRiverSchool.Igetupathalfpastsixinthemorningandhavebreakfast.Myschoolisalittlefarfrommyhome.Igotoschoolatseveno’clockbybus.Lessonsstartateighto’clock.Wehavefourlessonsinthemorning.MyfavouritelessonisChinese.Inthebreak,Igototheplaygroundandplayfootballwithmyfriends.Ihavelunchinthedininghallattwelveo’clock.Ilikedumplings.Lessonsstartintheafternoonathalfpasttwoinsummer.Ihavetwolessonsintheafternoon.Igohomeatfiveo’clockintheafternoon.Intheevening,IwatchTVandhavedinner.Idomyhomeworkandgotobedatteno’clock.
Now,pleaseturntopage44.Tellmesomethingaboutyourschoolday,OK?
■Readingandvocabulary
1Readthetextandputthepicturesinorder.
ThistextisaboutAlex’sschoolday.Alextellsusmanythingsabouthisschoolday.Whendoeshegetupinthemorning?Whendoeshegotoschool?Whatishisschool’sname?Readthetexttwice.Forthefirsttime,Pleasetrytocut(斷句)/thesentencesintoparts,blacken（涂黑）thepredicates,shade（加影）theconnectivesandunderline（劃線）theexpressions.
NowwritealltheexpressionsinyourExpressionBook.
Forthesecondtime,readthetextandputthepicturesinorder.
2MatchthetimeswiththepicturesinActivity1.
InActivity1,therearesixpictures.Youcanmatchthetimesherewiththesepictures.Forexample,whendoesAlexgotobedeveryday?Hegoestobedatteno’clockatnight.WhendoesAlex’sclassmatesplayfootballeveryday?Theyplayfootballinthebreakateleveno’clock.
picturea→12:30pictureb→10:00picturec→3:30
pictured→11:00picturee→9:00picturef→7:30
Nowwrite:inthemorning,intheafternoon,intheevening.
10:00inthemorning,3:30intheafternoon,7:30inthemorning,9:00inthemorning,11:00inthemorning,12:30intheafternoon
3Check(√)thetruesentencesforAlex.
Thefollowingsentencesarenotalltrue.Afterreadingthetext,doyouknowwhichonesaretrue?Alexgoestoschoolathalfpasteight,isittrueorfalse?DoesAlexplayfootballatschool?No,welearnfromthetextthatAlexdoesn’tlikefootball.Alextalkstohisfriendsinthebreak.WhendoAlex’slessonsfinisheveryday?Isitatfiveo’clock,fouro’clockorthreeo’clock?Check(√)thetruesentencesbelow.
Ihavebreakfastat7:00inthemorning.
Igotoschoolat8:30.(√)
Iplayfootballat11:00.
Wehavemeatandrice,withvegetablesorhamburgersat12:30.(√)
Lessonsfinishat3:30.(√)
Idomyhomeworkat10:00intheevening.
Nowcorrectthefalse:
Idon’thavebreakfastat7:00inthemorning.Ihavebreakfastat7:30inthemorning.
NotIbuttheyplayfootballat11:00.
Igotobedat10:00intheevening.SoIdomyhomeworkbefore10:00intheevening.
■Writingandspeaking
4RewritethesentencesinActivity3foryou.
InActivity3,therearesixsentencesaboutone’sschoollife.Nowrewritethesesentencesforyourself.Whendoyouhavebreakfast?Ihavebreakfastat8:00inthemorning.Whatandwhendoyouhavelunch?Ihavedumplingsat12:15.Whendolessonsfinisheveryday?Lessonsfinishatsixo’clock.
Ihavebreakfastat6:30inthemorning.Igotoschoolat7:00.Iplayfootballat5:00intheafternoon.Wehavemeatandrice,withvegetablesorhamburgersat12:30.Lessonsfinishat6:30intheafternoon.Idomyhomeworkat8:00intheevening.
5Workinpairs.Talkaboutyourschoolday.
Now,itistimeforyoutotalkaboutyourownschoolday.WhatdoesAlextellusabouthisschooldayinthetext?Hetellsuswhenhegetsup,goestoschool,hasabreak,haslunch,finisheslessonsandgoestobed.Whatotherthingsdoeshetellus?Hedoesn’tlikefootball.Whataboutyou?Hehasmeatandrice,withvegetablesorhamburgersforlunch.Whataboutyou?Whatdoyouhaveforlunch?Workwithyourpartner.Sayasmanysentencesasyoucan.Tellusaboutyourownschoolday.
Igetupatsixo’clock.Ihavemybreakfastathalfpastsixinthemorning.Igotoschoolatseveno’clock.Lessonsstartathalfpastseveninthemorning.Wehaveabreakatteno’clockinthemorning.Wehavelunchathalfpasttwelve.Lessonsfinishathalfpastsixintheafternoon.
Igohomeataboutseveno’clockatnight.Idohomeworkatabouthalfpasteightintheevening.
Ihavemydinnerathalfpastseven.Igotobedathalfpasttenintheevening.
6Lookatthesesentences.
Doyouknowhowtojointwosentencestogether?Yes,wecanusethewordandtojointwosentencestogether.Hereisanexample.Intheevening,Ireadbooks.Intheevening,Ilistentomusic.Icanalsosayasentencelikethis.Intheevening,Ireadbooksandlistentomusic.Nowjointhesentencesbelowwithand.Itisnotdifficult,right?
Igetupatseveno’clock.Igotoschoolateighto’clock.
→Igetupatseveno’clockandgotoschoolateighto’clock.
Wehaveabreak.Wetalktoourfriends.
→Wehaveabreakandtalktoourfriends.
Nowjointhesesentenceswithand.
Inthemorning,wegetup.Wegotoschool.
→Inthemorning,wegetupandgotoschool.
Inthemorning,wehaveabreak.Weplayfootball.
→Inthemorning,wehaveabreakandplayfootball.
Intheafternoon,wewatchTV.Weplaycomputergames.
→Intheafternoon,wewatchTVandplaycomputergames.
Intheevening,Ihavedinner.Idomyhomework.
→Intheevening,IhavedinnerandIdomyhomework.
Intheevening,Idomyhomework.Igotobed.
→Intheevening,IdomyhomeworkandIgotobed.

Unit3Languageinuse
■Warmingup
Hello,class.Languageissomethingforuse,forcommunication.Andlanguagecanbelearnedinuse,incommunication.
TodayweshalllearnabouttheEnglishlanguageinuse.WeshalllearnaboutEnglishGrammarandEnglishVocabulary.
■Grammar
Italktomyfriends.
Youhavedinnerintheevening.
Wehaveartandhistory.
Theydon’tstartateighto’clock.
1Talkaboutyourweekend.
InUnit2ofthismodule,wetalkaboutourschoolday.Now,wearegoingtotalkaboutourweekend.Atourweekend,wedon’tgotoschool.Wecandomanyotherinterestingthingsbesidesstudy.Whatdoyoudoatyourweekend?Isyourweekenddifferentfromyourschoolday?Talkaboutyourweekendwithyourclassmates.
Idon’tgotoschoolonSunday．IgototheparkonSunday.Ihavefishandriceforlunchat12:30.Iplaybasketballat3:30intheafternoonwithmyfriends.IwatchcartoonsonTVat6:00intheafternoon.Ihavesupperat7:00.Ihavenoodlesandvegetablesforsupper.Idohomeworkfrom8:00to9:00atnight.Idrinkabottleofmilkbeforegoingtobed.Igotobedat10:00atnight.
2WritethesentencesaboutJack.
Jackisaboy.Hegoestoschoolinhisschoolday.Whatcanweseefromthepicturesbelow?WhendoesJackgetup?Whendoeshegotoschool?WritethesentencesaboutJackinthefollowingbox.
Jack’sschoolday
1Igetupatseven.Idon’tgetupathalfpastseven.
2Igotoschoolateight.Idon’tgotoschoolathalfpasteight.
3Ihavelunchattwelve.Idon’thavelunchathalfpasteleven.
4Ileaveschoolatfour.Idon’tleaveschoolatthree.
5Weplaybasketballatfive.Wedon’tplaybasketballatfour.
3Completethesentenceswithat,inoron.
Wesayintheevening.Wesayatnight.Wealsosayatseveno’clockonSaturday.Igetupatsixo’clockinthemorning.Ihavesupperat6:00intheeveningonMonday.Pleasecompletethefollowingsentenceswithat,inoron.
1Wegotoschoolinthemorning.2Wedon’tgotoschoolonSunday.
3Igetupatseveno’clock.4Wedon’thaveachemistrylessononWednesday.
5Wegohomeintheafternoon.6Wehavedinnerathalfpastsix.
■Vocabulary
4Makephraseswithdo,haveorgo.
Ihavesupperatnight.Idomyhomeworkintheevening.IhaveChineselessontoday.Igotobedat10:00everyday.Pleasemakephraseswithdo,have,orgo.Whatothersentencescanyoumakewiththeseverbs?
1havedinner5haveanEnglishlesson
2doyourhomework6dohousework
3gotoschool7gotobed.
4haveabreak8gohome
■Aroundtheworld
InChina,westartclassusuallyat8:00inthemorningandwefinishclassusuallyat6:00intheevening.WhataboutthechildreninUK?
■Moduletask→Talkingaboutmyschoolday
5Completethetablewithinformationaboutyourschoolday.
Topractisewhatwelearnthisweek,weshallgotopage47andcompletethetablewithinformationaboutourschoolday.Ontheleftsideofthetable,therearemanyactivities.Ontherightside,weneedtofillintheirtimes.Whendoyougetup?Igetupat6:00inthemorning.Completethetablelikethis.
ActivitiesTime
getup
gotoschool
lessonsstart
studyEnglish／science，／art…
haveabreak
havelunch
studyEnglish／science／art
gohome
doyourhomework
havedinner
gotobed6:00
7:00
7:30
8:00/9:00/11:00
10:00
12:30
2:00/3:00/4:30
6:30
8:30
7:00
10:30
6WriteaparagraphcalledMyschoolday.
Hi,class!IwouldlikeyoutowriteaparagraphcalledMyschooldayforyourhomework.YoucanusethepassageinUnit2forhelp.Butyoucanalsowriteotherthingsaboutyourschoolday.Writeasmanysentencesasyoucan.
UsethepassageinUnit2Activity1tohelpyou．
7Sendyourwritingtoyourclassjournal．
Doyoufinishyourwritingaboutyourschoolday?Pleasesendittoyourclassjournal.Shareyourwritingwithyourclassmates.Let’sseewhothegreatestwriteris!

教案

[教案]初中地理教案(篇三)

學(xué)生們有一個(gè)生動(dòng)有趣的課堂，離不開(kāi)老師辛苦準(zhǔn)備的教案，大家在認(rèn)真寫(xiě)教案課件了。將教案課件的工作計(jì)劃制定好，就可以在接下來(lái)的工作有一個(gè)明確目標(biāo)！適合教案課件的范文有多少呢？請(qǐng)您閱讀小編輯為您編輯整理的《[教案]初中地理教案(篇三)》，歡迎閱讀，希望您能夠喜歡并分享！

教學(xué)目標(biāo)：

1．用地球儀正確演示地球的自轉(zhuǎn)和公轉(zhuǎn)，并解釋其基本的運(yùn)動(dòng)規(guī)律。

2．用簡(jiǎn)單的工具正確演示晝與夜，以及晝夜交替。

3．用實(shí)例解釋時(shí)差現(xiàn)象，并說(shuō)明再現(xiàn)實(shí)生活中需要具備時(shí)差的知識(shí)。

4．利用圖或親身體驗(yàn)，比較分析二分二至日時(shí)太陽(yáng)照射情況的差異，說(shuō)明四季的變化。

5．利用圖說(shuō)明五帶的界限，并舉例說(shuō)明各自的特點(diǎn)。

教學(xué)準(zhǔn)備：地球儀、地動(dòng)儀、手電筒、《地球的自轉(zhuǎn)與公轉(zhuǎn)》課件、投影

教學(xué)方法：演示、觀察、討論、比較、歸納

學(xué)法：觀察現(xiàn)象、結(jié)合生活實(shí)際、填表比較

課時(shí)：2課時(shí)

教學(xué)設(shè)計(jì)：

第一課時(shí)：

[導(dǎo)入]當(dāng)遇到一件不可能實(shí)現(xiàn)的事時(shí)，我們通常說(shuō)：“除非太陽(yáng)從西邊出來(lái)”，那么太陽(yáng)有可能從西邊出來(lái)嗎？（太陽(yáng)東升西落）那么真的是太陽(yáng)在升落嗎？

一．地球的自轉(zhuǎn)

[學(xué)生演示]地球繞著地軸自西向東不停地旋轉(zhuǎn)。

[小組討論]地球自轉(zhuǎn)的規(guī)律，填寫(xiě)下列表格有關(guān)自轉(zhuǎn)規(guī)律的項(xiàng)目。

（表1）

自轉(zhuǎn)公轉(zhuǎn)

方向自西向東自西向東

周期24小時(shí)（一天）一年

旋轉(zhuǎn)中心地軸太陽(yáng)

轉(zhuǎn)動(dòng)特點(diǎn)地軸傾斜地軸傾斜，北極總是指向北極星附近產(chǎn)生的地理現(xiàn)象晝夜交替和時(shí)差

四季的變化和晝夜長(zhǎng)短的變化

[學(xué)生結(jié)合實(shí)際說(shuō)明]太陽(yáng)東升西落其實(shí)就是地球自轉(zhuǎn)方向的證據(jù)

[設(shè)問(wèn)]地球的自轉(zhuǎn)會(huì)產(chǎn)生什么地理現(xiàn)象？

[學(xué)生演示]一名學(xué)生用手電筒做光源，照在地球儀上；

[反向思考]假定地球不自轉(zhuǎn)，地球表面會(huì)產(chǎn)生什么現(xiàn)象？（有晝半球和夜半球，卻不會(huì)有每24小時(shí)一次的晝夜交替）

[演示]老師在地球儀上用紅筆標(biāo)出廣州的位置，自西向東轉(zhuǎn)動(dòng)地球。。

[觀察討論]

（1）廣州在地球儀轉(zhuǎn)動(dòng)一周的時(shí)間里出現(xiàn)什么現(xiàn)象，說(shuō)明什么？

（2）結(jié)合生活體驗(yàn)計(jì)算：每天我們處在白天和黑夜的時(shí)間大約

是多少？每完成一次晝夜交替需要多長(zhǎng)時(shí)間？（24小時(shí)）

地球的自轉(zhuǎn)會(huì)產(chǎn)生晝夜交替的地理現(xiàn)象

[學(xué)生閱讀]課本第10頁(yè)“暢暢和姨媽的問(wèn)候”，思考產(chǎn)生時(shí)間差異的原因。

[觀察演示]在地球儀上標(biāo)出北京、紐約和東京，用手電筒做光源，照在地球儀上；老師自西向東轉(zhuǎn)動(dòng)地球。觀察北京、紐約和東京分別被光源照到的時(shí)間。

[教師說(shuō)明]地球自轉(zhuǎn)還使地球上不同經(jīng)度的地區(qū)產(chǎn)生時(shí)間的差異。在地球上，不同經(jīng)度的地方就有不同的時(shí)刻，東邊的時(shí)間總比西邊早。經(jīng)度每隔15度就相差一小時(shí)，東邊的時(shí)間總比西邊早。時(shí)刻的計(jì)算一般是“東早西晚，東加西減”。

地球自轉(zhuǎn)還會(huì)產(chǎn)生時(shí)間的差異

[設(shè)問(wèn)]1、日本東京于今天當(dāng)?shù)貢r(shí)間下午3點(diǎn)鐘有一場(chǎng)中日足球賽，在北京中央電視臺(tái)直播的時(shí)間應(yīng)是幾點(diǎn)？（下午2點(diǎn)）

2、俄羅斯的莫斯科也于今天當(dāng)?shù)貢r(shí)間下午3點(diǎn)鐘有一場(chǎng)中俄籃球友誼賽，我們應(yīng)在幾點(diǎn)鐘打開(kāi)電視收看直播？（15+5=20點(diǎn)）

[學(xué)生填表]將地球的自轉(zhuǎn)產(chǎn)生晝夜交替和時(shí)差的地理現(xiàn)象填在表1。

[課后想一想]我們?yōu)槭裁锤杏X(jué)不到地球在轉(zhuǎn)動(dòng)？

第二課時(shí)

教學(xué)過(guò)程：

[導(dǎo)入]現(xiàn)在的廣州處于什么季節(jié)？你最喜歡什么季節(jié)？為什么會(huì)有季節(jié)的變化？

[地動(dòng)儀演示]地球自轉(zhuǎn)的同時(shí)，還圍繞太陽(yáng)不停的公轉(zhuǎn)。

二．地球的公轉(zhuǎn)

[學(xué)生觀察討論]地球公轉(zhuǎn)的規(guī)律，將結(jié)論填在表1

[設(shè)問(wèn)]地球的公轉(zhuǎn)與四季變化有什么關(guān)系？

[學(xué)生演示]用手電筒在黑板上演示陽(yáng)光直射和斜射時(shí)單位面積得到太陽(yáng)光熱的多少。（陽(yáng)光直射時(shí)單位面積得到太陽(yáng)光熱多，斜射時(shí)單位面積得到太陽(yáng)光熱少）

[分組討論]結(jié)合生活實(shí)際，逐一討論

（1）在同一天，早晨、傍晚與中午三個(gè)時(shí)段相比，哪個(gè)時(shí)段我們感覺(jué)到太陽(yáng)光照射的最厲害？（中午比早晨、傍晚更厲害）這一現(xiàn)象說(shuō)明什么規(guī)律？（太陽(yáng)光線照射地面的角度越大，地面所得到的太陽(yáng)光熱能量越多，反之越少）

（2）與太陽(yáng)光熱能量在一天中的變化規(guī)律同理，太陽(yáng)光熱能量在一年中的變化有什么規(guī)律？（春-夏-秋-冬依次回答）

（3）一年中廣州什么季節(jié)的中午太陽(yáng)照射的最厲害？什么季節(jié)最溫和？為什么？（夏季中午太陽(yáng)升得最高，冬季較低）

（4）一年之中，廣州每天白晝的時(shí)間一樣長(zhǎng)嗎？什么季節(jié)較長(zhǎng)？什么季節(jié)較短？（不一樣，夏季白晝較長(zhǎng)，冬季較短）

[教師引導(dǎo)]綜上所述，由于地球表面在不同季節(jié)得到的太陽(yáng)光熱

有多有少，而產(chǎn)生了季節(jié)變化。這一現(xiàn)象與地球的公轉(zhuǎn)有什么關(guān)系？

[演示觀察]（1）假設(shè)地球直立著（地軸不傾斜）自轉(zhuǎn)和公轉(zhuǎn)，太陽(yáng)直射點(diǎn)在那里？（赤道）

（2）假設(shè)地球傾斜著自轉(zhuǎn)，但沒(méi)有公轉(zhuǎn)，太陽(yáng)直射點(diǎn)有變化嗎？（直射在某一緯度不變）

（3）當(dāng)?shù)厍騼A斜者自轉(zhuǎn)的同時(shí)又公轉(zhuǎn)，太陽(yáng)直射點(diǎn)會(huì)有變化嗎？

[CAI演示]地球的公轉(zhuǎn)，顯示地球公轉(zhuǎn)時(shí)太陽(yáng)直射點(diǎn)的移動(dòng)規(guī)律。

[學(xué)生觀察思考]觀察二分二至日時(shí)能夠受到太陽(yáng)直射的緯度位置，總結(jié)太陽(yáng)光照射情況在一年中的變化規(guī)律。完成下表（斜體字為填寫(xiě)內(nèi)容）

（表2）

節(jié)氣太陽(yáng)直射的緯度北半球獲得的太陽(yáng)光熱北半球白晝時(shí)間季節(jié)（月份）

夏至

6、22前后北回歸線接受光熱多，氣溫高最長(zhǎng)夏季（6、7、8）

秋分

9、23前后赤道過(guò)渡，溫和晝夜平分秋季（9、10、11）冬至

12、22前后南回歸線接受光熱少，氣溫低最短冬季（12、1、2）