初中英语LifeOnMars教案.docx

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初中英语LifeOnMars教案.docx

初中英语LifeOnMars教案

初中英语LifeOnMars教案_学习方法网

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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

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