八年级英语下册 Lesson25 Lets Do an Experiment教案 冀教版.docx

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八年级英语下册 Lesson25 Lets Do an Experiment教案 冀教版.docx

八年级英语下册Lesson25LetsDoanExperiment教案冀教版

Lesson25:

Let’sDoanExperiment!

ØStep1:

复习巩固、激情导入

复习:

提问unit3重点词组和句型

导入:

Doyouliketodoexperiment?

Whatexperimenthaveyoudone?

ØStep2:

出示目标、明确任务

1.牢记本课黑体词汇:

science/experiment/fill/prove/scientific/method等;

2.能分角色表演对话;

3.背诵重点句子1-5,并灵活运用相关知识点。

ØStep3:

自主学习、合作探究

任务一:

限时5分钟,熟读所有词汇,牢记黑体词汇

任务二:

熟读对话,把握其意,画出不理解处,同桌之间交流

任务三:

背诵重点句子,并自学知识点,画出不理解处,同桌之间交流

1.Ifillajarwithwater.

2.Iturnthejarupsidedown.

3.I'msurethefloorwon'tgetwet.

4.Wecanprovewho'sright.

5.We'lldotheexperimentandobservewhatwillhappen.

ØStep4:

师生互动、展示提升

互动一:

单词记忆比赛

互动二:

对话熟读接力赛

互动三:

知识点展示大比拼

✩知识点一:

Ifillajarwithwater.

fill...with...意为“用...装满...”

befilledwith...=befullof...意为“充满...”

fillin...意为“填上...;填充...”

Eg:

Onhearingthenews,hereyesarefilledwithtears.

Theyfilledtheholewithwater.

Fillintheblanks.

✩知识点二:

Iturnthejarupsidedown.

Turn…upsidedown意为“把……翻转/倒过来”

upsidedown意为“正面朝下”

rightsideup意为“正面朝上”

Eg:

Thatpictureisupsidedown.

Youholdthebookupsidedown.

✩知识点三:

I'msurethefloorwon'tgetwet.

besure(that)从句,意为“肯定……,确定……”主句的主语必须是人

否定形式是benotsure+疑问词引导的从句.

Eg:

Tomissurethathewillwinthegame.

Tomisnotsurewhetherhecanwinthegame.

I'mnotsurewhenhe'llcomehere.

✩知识点四:

Wecanprovewho'sright.

prove是及物动词,意为“证明,证实”

常用于以下结构:

provesth.(tosb.);prove(tosb.)that...;prove...(tobe)+adj/n.

Eg:

Thefacthasprovedtheman'shonestytousall.

=Thefacthasprovedtousallthatthemanishonest.

=Thefacthasprovedtheman(tobe)honest.

prove也可以作不及物动词,意为吧“证明\表明(自己)是...”后跟形容词或名词.

Eg:

Mytheorywillproverightsomeday.

Duringthetrip,heprovedamanwithastrongwill.

✩知识点五:

We'lldotheexperimentandobservewhatwillhappen.

(1)observe是动词,意为“观察”

observesb.dosth.

observesb.doingsth.

用法同see/watch/hear等

Eg:

Iobservedherdance.

WhenIpassedbythegrass,Iobservedhimwalking.

(2)happenvi意为“发生”

【固定短语】sthhappenstosb(无被动语态)

Happentodosth

Eg:

Whathashappenedtoyou?

Ihappenedtomeetanoldfriendyesterday.

ØStep5:

巩固练习、检测验收

教学反思:

 

课时32

Lesson26:

OneWetDanny?

ØStep1:

复习巩固、激情导入

复习:

提问Lesson25知识点1-5

导入:

WhyisDannygoingtowearhisswimsuit?

ØStep2:

出示目标、明确任务

1.牢记本课黑体词汇:

force等;

2.能分角色表演对话;

3.背诵重点句子1-4,并灵活运用相关知识点。

ØStep3:

自主学习、合作探究

任务一:

限时2分钟,熟读所有词汇,牢记黑体词汇

任务二:

熟读对话,把握其意,画出不理解处,同桌之间交流

任务三:

背诵重点句子,并自学知识点,画出不理解处,同桌之间交流

1.Brian,JennyandDannyaretalkingabouttheirexperiment.

2.Theforceoftheairwillkeepthewaterinthejar.

3.Brianwillturnthejarover.

4.Iwillasktheclasstomakeobservationsandguesswhatwillhappen.

ØStep4:

师生互动、展示提升

互动一:

单词记忆比赛

互动二:

能分角色表演对话

互动三:

知识点展示大比拼

✩知识点一:

Brian,JennyandDannyaretalkingabouttheirexperiment.

【固定词组】talkabout意为“谈论”

talktosb意为“对某人说”

talkwithsb意为“和某人谈论”

知识点二:

Theforceoftheairwillkeepthewaterinthejar.

Forcen力量、武力、暴力

Eg:

Theforceofhumanisgreat.

V迫使、强迫

【固定词组】forcesbtodosth=forcesbintodoingsth意为“强迫某人做某事”

Eg:

Nobodycanforcemetodoanything.

✩知识点三:

Brianwillturnthejarover.

【固定词组】turnover意为“翻过来”(over为副词)

Over短语:

comeover(to)…到……来

Goover复习

Getover恢复

Lookover检查

Eg:

WedohopethepeopleinSichuanwillsoongetovertheirtrouble.

✩知识点四:

Iwillasktheclasstomakeobservationsandguesswhatwillhappen.

【固定词组】

(1)Asksb(not)todosth要求某人(不要)做某事

类似用法:

tell/invite/want/teach/force

(2)makeobservations意为“观察”

ØStep5:

巩固练习、检测验收

教学反思:

 

课时33

Lesson27:

Dannythe“Dry-o-Saur”!

ØStep1:

复习巩固、激情导入

复习:

提问Lesson26知识点1-4

导入:

Intheexperiment,willDannygetwet?

ØStep2:

出示目标、明确任务

1.牢记本课词汇:

surprised/examine/discover/explain/enough/liquid/solid/

2.spoon/add/mix/pour;

3.熟读课文,把握其意;

4.背诵重点句子1-4,并灵活运用相关知识点。

ØStep3:

自主学习、合作探究

任务一:

限时1分钟,牢记词汇

任务二:

熟读两封邮件,把握其意,画出不理解处,同桌之间交流

任务三:

背诵重点句子,并自学知识点,画出不理解处,同桌之间交流

1.Next,Brianwilltakehishandoffthecardboard.

2.Theforceisstrongenoughtoholdthewater.

3.AirisstrongerthanIthought!

4.Puteightspoonfulsofcornstarchintothebowl.

ØStep4:

师生互动、展示提升

互动一:

熟读邮件比赛

互动二:

课文熟读接力赛

互动三:

知识点展示大比拼

✩知识点一:

Next,Brianwilltakehishandoffthecardboard.

takesth.offsth.意为“使某物离开或脱离...”

Eg:

Wouldyoumindtakingyourfootoffmyhand?

takeoff还意为“起飞;脱下;匆忙离去”

Eg:

Theplanetookoffat7a.m.

Takeoffyourshoes,please.

Hetookoffforthestationinahurry.

✩知识点二:

Theforceisstrongenoughtoholdthewater.

Adj/adv+enoughtodosth意为“是足够...以至于能做某事”

Eg:

Theboyisoldenoughtogotoschool.

=Theboyissooldthathecangotoschool.

=Heissuchanoldboythathecangotoschool.

enough作副词,要放在被修饰的形容词和副词之后;

作形容词,通常放在被修饰的名词前或之后.

Eg:

Thishallislargeenoughtoholdtwothousandpeople.

Hewalksfastenoughtobehereintime.

Hedoesn'thaveenoughmoneytogofortraveling.

I'msoory,butIhaven'tenoughtimetodothejob.

✩知识点三:

AirisstrongerthanIthought!

than可作连词或介词,用于引入比较级的后半部分,表示比...;

Eg:

Sheisabetterplayerthanshewaslastyear.

Heistallerthanme.HegetsupearlierthanI(do).

ratherthan意思是宁愿...,不愿...;与其...不如...

Eg:

Iwouldratherstayathomethangoout.

✩知识点四:

Puteightspoonfulsofcornstarchintothebowl.

spoonful是可数名词,意思是一勺的量.

Eg:

aspoonfulofsugar.

类似的还有twocupfulsofmilk;afewmouthfulsoftea;ahandfulofflowers

ØStep5:

巩固练习、检测验收

教学反思:

 

课时34

Lesson28:

FillMyPlate

ØStep1:

复习巩固、激情导入

复习:

提问Lesson27知识点1-4

导入:

Doyoulikethesong?

ØStep2:

出示目标、明确任务

1.牢记本课黑体词汇:

plate/taste/empty/full等;

2.听录音1-3遍,能跟唱歌曲;

3.背诵重点句子1-2,并灵活运用相关知识点。

ØStep3:

自主学习、合作探究

任务一:

限时3分钟,熟读所有词汇,牢记黑体词汇

任务二:

听录音,跟唱歌曲,比一比,赛一赛,看哪组唱的最好

任务三:

背诵重点句子,并自学知识点,画出不理解处,同桌之间交流

1.Thattastessogreat.

2.AndIwilleatuntilmyplateisempty.

ØStep4:

师生互动、展示提升

互动一:

单词记忆比赛

互动二:

跟唱歌曲比赛

互动三:

知识点展示大比拼

✩知识点一:

Thattastessogreat.

Taste

(1)作系动词,后接形容词作表语,意为“尝起来……”

Eg:

Themeattastesgood.

(2)做实义动词,意为“品尝、体验”

Eg:

Wouldyouliketotastethecheese?

Imademyself.

✩知识点二:

AndIwilleatuntilmyplateisempty.

Empty

(1)a空的

Eg:

Ineedanemptybox.

(2)v倒空

Eg:

Ihaveemptiedadrawerforyoutouse.

ØStep5:

巩固练习、检测验收

教学反思:

 

课时35

Lesson29:

AnEasterEggHunt

ØStep1:

复习巩固、激情导入

复习:

唱Lesson28歌曲

导入:

WhenisEaster,doyouknow?

AndhowdopeoplecelebrateEaster?

ØStep2:

出示目标、明确任务

1.牢记本课黑体词汇:

basket/hide/hen等;

2.熟读课文,把握其意;

3.背诵重点句子1-3,并灵活运用相关知识点。

ØStep3:

自主学习、合作探究

任务一:

限时3分钟,熟读所有词汇,牢记黑体词汇

任务二:

熟读课文,把握其意,画出不理解处,同桌之间交流

任务三:

背诵重点句子,并自学知识点,画出不理解处,同桌之间交流

1.Whenyou“hunt”forsth,youwillfindit!

2.Debbiewillhavefunlookingforthem.

3.Nowmybasketisfullofeggs.

ØStep4:

师生互动、展示提升

互动一:

单词记忆比赛

互动二:

课文熟读接力赛

互动三:

知识点展示大比拼

✩知识点一:

Whenyou“hunt”forsth,youwillfindit!

【固定句型】find,lookfor,findout,huntfor

find强调找的结果意为“找到”

Eg:

Hefoundhislostpen.

lookfor强调动作的过程意为“寻找”

Eg:

Heislookingforhislostpen.

findout强调(经过一番努力之后)找到...;查明....

Eg:

Atlast,theyfoundoutwhostolethebike.

huntforsb.\sth.意为“寻找某人或某物”与lookfor同义.

Eg:

Thepolicearehuntingforthethief.

✩知识点二:

Debbiewillhavefunlookingforthem.

havefun相当于enjoyoneself意为“玩得高兴,过得愉快”

Eg:

Wehadlotsoffunonthesportsgroundtoday.

=Weenjoyedourselvesverymuchonthesportsgroundtoday.

havefundoingsth.表示做某事有乐趣.

Itis(not)funtodo\doingsth.

=Thereismuch\nofunindoingsth.意为“做...有(无)乐趣”

Eg:

Itisfuntocookamealmyself.

=There'smuchfunincookingamealmyself.

Thereisnotmuchfuningoingtoapartyalone.

=It'snotfuntogotoapartyalong.

✩知识点三:

Nowmybasketisfullofeggs.

befullof...意为“充满……”=befilledwith...

Eg:

Thebusisfullofpeople.=Thebusisfilledwithpeople.

ØStep5:

巩固练习、检测验收

教学反思:

 

课时36

Lesson30:

KeeptheCandleBurning!

ØStep1:

复习巩固、激情导入

复习:

提问Lesson29知识点1-3

导入:

Doyouthinkscienceisinteresting?

Whyorwhynot?

ØStep2:

出示目标、明确任务

1.牢记本课黑体词汇:

match/light/burn/useup等;

2.熟读课文,把握其意;

3.背诵重点句子1-4,并灵活运用相关知识点。

ØStep3:

自主学习、合作探究

任务一:

限时5分钟,熟读所有词汇,牢记黑体词汇

任务二:

熟读课文,把握其意,画出不理解处,同桌之间交流

任务三:

背诵重点句子,并自学知识点,画出不理解处,同桌之间交流

1.Fillthedishhalffullofwater.

2.Tomakeacandleburn,you"light"it.

3.Asthecandleburns,itusesupoxygenintheair.

4.Thereisaboutone-fifthoxygenintheair,sothewaterrisesandfillsaboutone-fifthofthejar.

1.Thecandleholderis"holding"thecandle.

ØStep4:

师生互动、展示提升

互动一:

单词记忆比赛

互动二:

课文熟读接力赛

互动三:

知识点展示大比拼

✩知识点一:

Fillthedishhalffullofwater.

Half

(1)副词意为“部分地,一半地,差不多”

Eg:

Thebottleisonlyhalffull.

(2)也可作形容词,名词,意为“半个的,一半的,一半”

Eg:

halfayear=ahalfyear;

halfanhour=ahalfhour;

Halfofthemarealreadyhere.

Twohalvesmakeawhole..

✩知识点二:

Tomakeacandleburn,you"light"it.

Make/let/havesth./sb.dosth.意为“使某物或某人做某事”

Eg:

Letthecandleburnfortwoorthreeminutes.

✩知识点三:

Asthecandleburns,itusesupoxygenintheair.

1)as作连词的各种用法

as...as...结构中第二个as是连词,它往往连接一个不完整的句子,表示比较,意思是和...一样...;像...一样....”

Eg:

Johnisashealthyashissister.

表示方式,意为“像,按照,如同.”

Eg:

RunasIdo.Leaveitasitis.

表示时间,意为“当...的时候,一边...一边...,随着”

Eg:

Shesangassheworked.Isawhimashewasgettingoffthebus.Youwillgrowwiserasyougrowolder.

表示原因,意为“因为”

Eg:

Asyouaretired,youbadbetterrest.

表示让步,意为“虽然,尽管”

Eg:

Richasheis,heisnothappy.MuchasIlikeit,Iwillnotbuyit.

2)usesth.up意为“用尽...,利用...”

Eg:

Sheusedupthechickenbonestomakesoup.

Whenthecandlestopsburning,ithasusedupalltheoxygenintheair.

✩知识点四:

Thereisaboutone-fifthoxygenintheair,sothewaterrisesandfillsaboutone-fifthofthejar.

分数的表达形式:

分子用基数词,分母用序数词,分子大于1,分母加s.

概括为口诀:

分子基,分母序.分子>1,分母加s.”

Eg:

1/2=one/ahalf=onesecond=one-second;

1/3=onethird=one-third;2/3=twothirds=two-thirds;

1/4=one/aquarter=one-quarter;

3/4=threequarters=three-quarters;3/5=threefifths=three-fifths;

✩知识点五:

Thecandleholderis"holding"thecandle.

hold为动词意为“拿,抓,握,抱,保持,容纳”

Eg:

ShallIholdyourbag?

Heheldabookinhishand.

Heheldhisheadup.

Idon'tthinkthecarwillholdyouall.

ØStep5:

巩固练习、检测验收

教学反思:

 

课时37

Lesson31:

SurpriseYourFriends!

Ø

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