Module3 Unit2 課件 2022-2023學(xué)年外研版英語八年級下冊

Module3JourneytospaceUnit2Wehavenotfoundlifeonanyotherplanetsyet.sendaspaceshiparrive

takeseveralmonthsThelatestnewsScientists_______already_______aspaceshiptoMars.Thejourney______________severalmonths.It_____________already.

havesent

hastakenhasarriveddiscoverlifebetothemoonbetoMarsScientists__________________lifeonMarsyet.Astronauts________already________tothemoon.Butnoone______________toMarsyet.haven’tdiscoveredhavebeenhasbeenThelatestnewsLookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships.Whendidwesendit?Wheredidwesendit?Howlongdiditstayinspace?Whoaretheastronauts?In2012.Jiuquan,GansuProvince.Thirteendays.JingHaipeng,LiuYang,LiuWangShenzhou-9isamannedspaceship.Task1:Pre-reading1.Anyoneoutthere?2.Lifeontheearth3.Thesunandtheotherstars4.ThestarsatnightReadingtips:

Readthefirstparagraphandthelastparagraph.Anyoneoutthere?Readandchoosethebesttitle.Let’sread

1

2345?WhatdoesthewritermainlywanttotellusinParagraph1??

Why??Howmanyreasons(原因）doesthewritertellus?Anyoneoutthere?Topicsentence

Theearthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth.soscientistsdonotthinktheywillfindlifeonthem.Thesunanditsplanetsarecalledthesolarsystem,andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets，calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Whyhaven'twefoundlifeonanyotherplanetsyet??Whatdoes“them”referto(指代）??Whatdoes“that”referto??Whatisthesolarsystem(太陽系）??WhatistheGalaxy/theMilkyWay（銀河系）？Paragraph2Thefirstreasonthesunaplanet...arecalledthe

solar

system(太陽系）sevenotherplanetsNoneofthemhasan…like...,soscientistsdonotthinkthey...solarsystem,asmallpartamuchlargergroupofstarsandplanetsbillionsofstarstheGalaxyortheMilkyWay

Scientistshavealsodiscoveredmanyothergalaxiesintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeistheuniverse?Itisimpossibletoimagine.?Whathavescientistsalsodiscoveredintheuniverse?

?Howlongdoestheirlighttraveltoreachus?Whycan'twefindanylifeonanyotherplanetsyet?Becausetheuniverseistoolarge.Paragraph3ThesecondreasonPutthewordsandexpressionsfromthesmallesttothelargest:_____________ReadParagraphs2&3again

B

A.galaxyB.planetC.solarsystemD.starE.universeDCAE

ScientistshavesentspaceshipstotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.BecausenospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Whycan'twefindanylifeonanyotherplanetsyet?Becausethetechnology(科技）islimited（限制）.Paragraph4Thethirdreason

Scientistshavealwaysaskedthequestions:withsomanystarsintheuniverse.arewealone,oristherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromotherplanets?Whyhasnoonecommunicated

withus?Wedonotknowtheanswers...yet.?Howdoesthewriterendthepassage?Bylistingscientists'questions.?Whydoesthewriterendthepassagewithsomanyquestions?Toletthe

readersthinkaboutthequestion:Isthereanyotherlifeintheuniverseoroutthereinspace?Paragraph5Theuniverseisfullofpowerandmystery(神秘).Neverloseyourcuriosity(好奇心)inspacelikeourscienceheroes.Check(√)thetruesentences.（Activity3）1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyintheuniverse.4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Spaceshipshavevisitedmostoftheuniverse.√×√√××planethaven'treceivedany

haven'tvisited1.Scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears.

hundredsofmillionsof數(shù)億【拓展】

millionsof數(shù)百萬hundredsof數(shù)以百計

thousandsof成千上萬billionsof數(shù)十億Notes：hundred,thousand,million,billion

模糊數(shù)字兩有，確切數(shù)字兩無。e.g.Thereare______________intheGalaxy,andthesunisonlyoneofthem.

銀河系中有數(shù)十億顆恒星，太陽只是其中的一個。Thatcompanyhasfive___________workersintotal.

那個工廠總共有五百位員工。billionsofstarshundred2.Noneofthemhasanenvironment

likethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.none

pron.沒有一個；沒有一人（三者或三者以上）。既可指人也可指物。noneof與不可數(shù)名詞連用作主語時，謂語動詞用單數(shù)；

與可數(shù)名詞復(fù)數(shù)或代詞的復(fù)數(shù)形式連用時，謂語動詞用單數(shù)或復(fù)數(shù)均可。

all與none意思相反，每個，全體，指三者或三者以上的人或物?！菊Z境應(yīng)用】Ⅰ.單項選擇?！狪triedseveralwaystoworkoutthemathproblem,but________of

themworked.—Nevergiveup.Ibelieveyou’llmakeit.A.all

B.each

C.none

D.neither

Ⅱ.詞匯運用?！猅icketsfortoday?—Sorry,we’vegot

left,butwehaveafewfortomorrow.Cnone

Ⅲ.完成句子。1)他們?nèi)齻€都很忙。Theythree________________verybusy.2)這些學(xué)生沒有一個人有電腦。________________thestudents__________acomputer.3)這筆錢沒有一點是我的。________________themoney________mine.areallNoneofhas/haveNoneofis3.Sohowlargeistheuniverse?It’s

impossibletoimagine.Itbeimpossible(forsb)todosth（對某人來說）做某事是不可能的Itbeadj.（forsb)todosth(對某人來說）做某事……e.g.

__________________thesewords.

讀這些單詞很難。

Itis___________(possible)tobuildanothermuseuminsuchashorttime.

Itisdifficulttoreadimpossible4.However,nospaceshiphastraveledfarenoughtoreachotherstarsinourGalaxy.然而，沒有一個航天器足以到達我們銀河系其他恒星那么遠的地方。

adj./adv.+enough+todosth.足夠…可以做…not+adj./adv.+enough+todosth.不夠…不可以做…(1)我們有足夠的錢花。

Wehave___________________________.(2)他跑得夠快，很快追上了我們。

Heran________________catchupwithussoon.(3)他年齡不夠大，照顧不了自己。

He_______________________________________.enoughmoneytospendfastenoughtoisn’toldenoughtolookafterhimself5.…withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?

宇宙中有這么多星球，我們是孤獨的嗎？或者太空中還有其他生命存在呢？with+名詞+介詞短語：帶著……，表伴隨。e.g.Mr.Zhangiscoming_____________inhishand.張老師手里拿著一本書進來了。withabookThewomanstoodtherewithherhandsinthepockets.Practise—Whydoyoualwayssleep______?—BecauseI’mafraidofthedark.A.byyourselfB.withthedooropenC.withthewindowopenD.withthelighton

12345?

Why?Noneoftheotherplanetshas...Theuniverseistoolarge.Thetechnologyislimited.What(thetopic):Wehavenotfoundlifeonanyotherplanetsyet.Whatkindofarticle（文章）isit?Exposition(說明文）

Anyoneoutthere?

12345?Howisthepassageorganised?A.①/