初中英语LifeOnMars教案.docx
《初中英语LifeOnMars教案.docx》由会员分享,可在线阅读,更多相关《初中英语LifeOnMars教案.docx(11页珍藏版)》请在冰豆网上搜索。
初中英语LifeOnMars教案
初中英语LifeOnMars教案_学习方法网
---------------------------------------
Unit1LifeOnMars教案
Grammar
二、教学内容:
9BUnit1LifeonMars
三、课型:
Grammar
四、教学目标
1.知识目标
1)掌握can,could和may,might的用法。
2)掌握that,if或whether引导的宾语从句的用法。
2.能力目标
1)能够运用can,could和may,might来具体表示请求或给予许可。
2)能够运用that,if和whether引导的宾语从句转述信息。
五、教学重难点
1.重点:
1)can,could和may,might的礼貌程度上的区别。
2)宾语从句that,if/whether的构成及用法。
2.难点:
if或whether引导的宾语从句的语序。
第二部分教学流程
用时:
18分钟
Step1Lead-in用时:
分钟
(出镜)
T:
Hello,everyone!
Gladtoseeyouagain.Todaywearegoingtolearn’can,could,may,might’andtheobjectclausesintroducedby‘that‘,‘if/whether’.
(大家好!
很高兴又和大家见面了!
今天我们一起来学习can,could,may,might的用法和that,if/whether引导的宾语从句.)
T:
Firstlet’slookatGrammarAandlearnhowtouse‘can,could,may,might‘.
Step2GrammarAUsing‘can’,‘could’,‘may’,‘might’(PPT)
T:
Nowhe’saskingotherpeopleforpermission.Lookatthequestionsandpayattentiontothemodelverbsheuseswhenhewantstoaskforpermissionfromdifferentpeople.(PPT)
Kitty,canIborrowyourdictionary?
Mr.Green,couldIaskyousomequestionsplease?
Excuseme,sir.MayIhavealookatthenameofyourbook?
T:
Canyoutellmethedifferencesbetweenthethreesentences:
(PPT)
T:
---Inthe1stsentence,///Simonuses‘can’toaskhisfriendKittyaquestionbecauseit’sinformal.‘can’isalwaysusedwithfriends.(在第一句中,Simon用情态动词’can’提问他朋友Kitty,因为这通常用于朋友之间的非正式场合。
)
---Inthe2ndsentence,///Simonuses“could’toaskhisteacherMr.Wuaquestionbecauseit’sformal.“could”isalwaysusedwithteachersorotheradults.(在第二句中,Simon用情态动词’could’提问他老师’MrWu’,因为这通常用于教师和其他成年人之间的正式场合。
)
---inthe3rdsentence,///Simonuses“may’toaskastrangeraquestionbecauseit’sformalandpolite.“may”isalwaysusedwithstrangersandpeopleyourespect.(在第三句中,Simon用情态动词’may’提问陌生人,因为这通常用于陌生人和你尊重的人之间的正式而礼貌的场合。
)
---Herepaymoreattentionto“might”.Mightisveryformalandit’sverypolitebutrarelyused.
(注意:
‘might’的用法既正式又礼貌,但是实际生活中很少使用。
)
eg:
MightIuseyourcomputer,Mr.Wu?
※Theyallexpresspermission.(他们都用于表示请求和允许。
)
T:
OK.Let’sdosomeexercises.(PPT)
T:
Let’schecktheanswers.
1Dad,couldItakeyourcamera?
Yes,youcan.(It’sformal.)
2MayIborrowthishelmet,madam?
No,youmaynot.(It’sformalandpolite.)
3CanIborrowyourboots,Mike?
Yes,youcan.(It’sinformal.)
T:
Canyougivemetheanswerstothesequestionsabout‘can,could,may,might’?
(PPT)
1Can/Couldyougotothezootomorrow?
----Wecananswer:
--Yes,youcan.orNo,youcannot/can’t.
2May/MightIuseyourcomputer,MrWu?
----Wecananswer:
--Yes,youmay.orNo,youmaynot/can’t.
T:
Here‘could,might’donotmean‘thepasttense’,butmean‘morepolite’.
(这儿的“could,might“不是表示过去时,而是表示更委婉的语气。
)
T:
Nowpleasewritesentencestoaskforpermissioninthefollowingsituations.(PPT)
lookatthe1stSituation
IfyouareonabusandthepersoninfrontofyouhasthewindowopenandItstartstorainandyou’regettingwet.Howdoyouaskhimforpermission?
---Wecanask:
MayIclosethewindow?
Becauseit’sformalandpolitetouse‘may’whenweaskastrangeronthebusforpermission.
T:
Lookatthe2ndSituation
IfyourcousiniswatchingaboringprogrammeonTV.Whatdoyousaytoaskhertochangethechannel.
T:
Wecansay:
----CanIchangethechannel?
Becauseit’sinformaltouse‘can’toaskfriendsforpermission.
T:
Lookatthe3rdSituation
Ifyouruncleandaunthaveinvitedyoutojointheminawalkintheparkandyouwanttotakeyourdogwithyou.///
Whatdoyousaythen?
--That’sright.Wecansay:
‘CouldIbringmydog?
’Becauseit’sformaltouse‘could’toaskadultsforpermission.
Step3TheObjectclausesintroducedby‘that’
T:
LookatGrammarB.Let’slearn‘that‘clause(下面我们来学习that引导的宾语从句。
)(PPT)
1)Earthisbecomingmoreandmorecrowdedandpolluted.
WhatdoesDanielthink?
---DanielthinksthatEarthisbecomingmoreandmorecrowdedandpolluted.
2)PeoplewillliveontheplanetMarsbytheyear2100.
WhatdoesDanielthink?
---Good.DanielthinksthatpeoplewillliveontheplanetMarsbytheyear2100.
3)Therobotwilldomostofthework.
WhatdoesDanielthink?
---Yes,Danielthinksthattherobotwilldomostofthework.
T:
Nowcanyouputthesetwosentenceswith‘that’?
T:
Let’sdosomeexercises.…Haveyoufinished?
Nowlet’schecktheanswers.
1)He’llbebackinamonth.
(Ihear…)
--Ihear(that)hewillbebackinamonth.
2)IhavebeentotheGreatWallonce.
(Hetellsme…)
--Hetellsme(that)hehasbeentotheGreatWallonce.
T:
OK.CanyoufindouttherulesaboutObjectclausesintroducedby‘that’?
(PPT)
(那么你能总结-that连接的宾语从句的规则吗?
)
Tips
1Wecanuse‘that’clausetoreplaceanobjectaftertheverbinasentence.(我们可以用that从句来代替一个宾语连接跟在动词后面做宾语。
)
2Thewordorderintheobjectclauseisjustthesameasthatinthestatement.(从句中语序保持不变。
)
3Sometimeswecanleavetheconnective“that”outintheobjectclause.
(有时连接词that也可以省略不用。
)
T:
Itseemsterriblyeasyforyou,right?
Let’sdomorepractice.Canyoujointhefollowingsentenceswithobjectclausesintroducedby‘that’?
(PPT)[来源:
Zxxk.Com]
1)Peoplethink…
HumansonMarshavetowearspecialbootstomakethemselvesheavier.
--PeoplethinkthathumansonMarshavetowearspecialbootstomakethemselvesheavier.
2)Somescientistsdon’tbelieve…
ThejourneytoMarswillbeverycomfortable.
--Somescientistsdon’tbelievethatthejourneytoMarswillbeverycomfortable.
T:
Canyoufindouttheobjectclausesinthefollowingsentences.Writean“O“foranobjectclauseandan“N”forasentencewithoutone.(PPT)
(你能在下列句中找出宾语从句吗?
是的话用O表示,不是的用N)[来源:
Zxxk.Com]
1)Theseplantswillproducefoodandoxygenthatweneed.
2)ScientistsshouldbeabletodevelopplantsthatgrowonMars.
3)PeoplethinkthathumansonMarshavetowearspecialbootstomakethemselvesheavier.
4)WeallknowthatMarsisaplanetinthesolarsystem.
5)ThejourneytoMarscouldtakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.
6)SomescientistsdonotbelievethatthejourneytoMarswillbeverycomfortable.
T:
Let’schecktheanswerstogethernow.[来源:
学|科|网Z|X|X|K]
1)Theseplantswillproducefoodandoxygenthatweneed.
---Here‘thatweneed’isnotanobjectclausebecauseit’snotafteraverb.Soit’sN.
(在这句中‘thatweneed’不是宾语从句,因为它不在动词后面。
)
2)ScientistsshouldbeabletodevelopplantsthatgrowonMars.
---Here‘thatgrowonMars’isnotanobjectclausebecauseit’snotafteraverb.Soit’sN.
(在这句中‘thatgrowonMars’不是宾语从句,因为它不在动词后面。
)
3)PeoplethinkthathumansonMarshavetowearspecialbootstomakethemselvesheavier.
---Here‘thathumansonMarshavetowearspecialbootstomakethemselvesheavier’isanobjectclauseaftertheverb“think.Soit’sO.
(在这句中‘thathumansonMarshavetowearspecialbootstomakethemselvesheavier’是宾语从句,因为它在动词“think’后面。
)
4)WeallknowthatMarsisaplanetinthesolarsystem.[来源:
Zxxk.Com]
---Here‘thatMarsisaplanetinthesolarsystem’isanobjectclausebecauseit’saftertheverb‘know’.Soit’sO.
(在这句中’thatMarsisaplanetinthesolarsystem’是宾语从句,因为它在动词后面‘know’。
)
5)ThejourneytoMarscouldtakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.
---Here‘thattravelathalfthespeedoflight’isnotanobjectclausebecauseit’snotafteraverb.Soit’sO.
(在这句中‘thattravelathalfthespeedoflight’不是宾语从句,因为它不在动词后面。
)
6)SomescientistsdonotbelievethatthejourneytoMarswillbeverycomfortable.
---Here‘thatthejourneytoMarswillbeverycomfortable’isanobjectclausebecauseit’saftertheverb‘believe’.Soit’sO.
(在这句中‘thatthejourneytoMarswillbeverycomfortable’是宾语从句,因为它在动词‘believe’后面。
)
Step4TheObjectclausesintroducedby‘if‘or‘whether’(PPT)
T:
Nowlet’slearntheObjectclausesintroducedby‘if‘or‘whether’.
T:
DanielhaslearnedalotaboutlivingonMars.Buthe’sstillworryingaboutsomething.Lookathisworries.
1)Couldtheplantsproduceenoughwater?
---Danielisnotsureif/whethertheplanetscouldproduceenoughwater.
2)ArethereanyaliensonMars?
----Danielisnotsureif/whetherthereareanyaliensonMars.
3)AreanimalsonMarsdangerous?
---Danielisnotsureif/whetheranimalsonMarsdangerous.
T:
Let’sdomorepracticetogether.(PPT)
1)Doesheliveinthathouse?
(Sheasksme…)
---Sheasksmeif/whetherhelivesinthathouse.
2)Haveyoufinishedyourhomework?
(Iwanttoknow…)
----Iwanttoknowif/whetheryouhavefinishedyourhomework.
T:
Canyouworkouttherulesyourselves?
(PPT)
Tips
1Wecan