外研社英语八年级下M3U1课件.ppt

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1、外研社英语八年级下M3U1课件EarthMarsMoonouterspaceWhatisouterspacelike?Hasanyonebeentoouterspace?Whatsinouterspace?Nowletshavealook!OurGalaxy-TheMilkyWay(银河银河)Therearemorethan200billionstarsinourgalaxy(星系星系),andtheSunisonlyoneofthem.OtherGalaxiesThereareothergalaxiesintheuniverse.Thestarsweseeatnightarethesunsi

2、nothersolarsystems.thesolarsystemMercury水星水星Earth地球地球Mars火星火星Saturn土星土星Neptune海王星海王星Venus金星金星Jupiter木星木星Uranus天王星天王星Pluto冥王星冥王星小行星带小行星带Asteroidbelt彗星彗星Comets陨石陨石MeteoritesHowcanwegotoouterspace?Byspacecraft.spaceshuttleastronautspacestationHasmandiscoveredlifeonthemoon?ApolloMoonlandingMoonexplorati

3、onChangeIMoonexplorationChangeIIChangeIIHasmandiscoveredlifeonMars?Yinghuo-1(萤火一号萤火一号)Yinghuo-1wasaChineseMars-explorationspaceprobe,intendedtobethefirstChinesespacecrafttoexploreMars.Itwaslaunchedon8November2011.Owingtoburnsdidnottakeplace,leavingbothprobesstrandedinorbit.On17November,ChineseStatem

4、ediaformallydeclaredtheYinghuo-1probelost.Yinghuo-1underwentdestructivere-entryon15January2012,finallydisintegratingoverthePacificOcean.Marsisconsideredtobetheplanetthatcouldbesuitableforpeopletostay.Diameter(直径直径)6,794kilometersQuality(质量质量)6.4219e23kilogramsGoodnews:Somescientistshavealreadysentas

5、pacecrafttoMars.1.Astronautstakethe_togettothe_.Completethesentenceswiththecorrectformofthewordsandphrasesinthebox.spaceshuttlespacestationborrowdiscoverlifemodelrecentlyspacestationspaceshuttle2.Theyhavent_any_onMarsyet.3.The_ofthespacestationisntDamings,andheonlywantsto_it.4.Astronautshaventbeento

6、themoon_.Thelasttimewasover30yearsago.discoveredlifemodelborrowrecentlyborrowdiscoverlifemodelrecentlyspacestationspaceshuttleListenandnumberthewordsasyouhearthem.earthlandmessagemoonnewsplanetreachscientist12573846Listenagainandcompletethenotes.lnewsaboutthetripto_ljourneyof_monthslhasnotsentbackan

7、y_yetlhopetofind_onMarsMarseightmessageslifeListenandchoosethebestanswers.1.Tonyhasmadeamodelofthe_.A.spaceshipB.spacecraftC.spaceshuttle2.HavetheastronautsdiscoveredlifeonMars?_A.Yes,theyhave.B.No,notyet.C.Yes,theydid.ABReadandanswerthequestions.1.WhatschoolprojecthaveDamingandTonygot?2.HowdoesDami

8、ngfeelabouttheschoolproject?Spaceship.Heisnotsurehowtomakethemodel.3.WhatnewshasTonyheard?4.HasanyonebeentoMars?Why?SpaceshiptoMarshasreachedthere.No,becauseMarsisveryfaraway,muchfartherthanthemoon.TonyandDamingmeeteachother.Tonyhasjustmadea_ofthespaceship.Damingthinksitsgreat,buthehasnt_hisyet.They

9、thentalkaboutthelatestnews.Some_havesentaspaceshiptoMars.Ithastakenseveralmonthstogetthere.Readtheconversationandcompletethepassage.Then,actouttheconversationwithyourpartners.modelstartedscientistsTheyhavent_lifeonMarsyet.NoonehasbeentoMarsyet,but_havealreadybeentothemoon.Marsisvery_.Lotsof_are_inor

10、dertosendastronautstoMarsoneday.discoveredastronautsworkingfarawayscientistsKeypointsbeupto表示表示“从事于从事于,忙于忙于”,后面接名词、代后面接名词、代词或词或-ing形式等。如：形式等。如：Allofusareuptogooddeeds.我们所有人都在做有益的事情。我们所有人都在做有益的事情。Goandseewhatthesenaughtyboysareupto.去看看这些顽皮的孩子在做什么。去看看这些顽皮的孩子在做什么。1.Whatareyouupto?beuptosb.todosth.表示表示“

11、应由某人做某事应由某人做某事”。常用常用it作形式主语。如：作形式主语。如：Itisuptometogetthefourofusmoving.该由我来召集我们四个人动起来。该由我来召集我们四个人动起来。beuptosb.表示表示“由某人决定，随某人由某人决定，随某人”。如：。如：Whetherwewillgototheparkisuptoyourbrother.我们是否去公园由你哥哥定。我们是否去公园由你哥哥定。AnIndianoraChinesemeal?Itsuptoyou.吃印度菜还是中国菜？由你决定吧。吃印度菜还是中国菜？由你决定吧。beupto表示表示“胜胜任，适合，适于任，适合，适

12、于”，多用于，多用于否定句或疑否定句或疑问问句。如：句。如：LiPingisnotuptohiswork.李平不能李平不能胜胜任他的工作。任他的工作。Doyouthinksheisuptodoingitalone?你你认为认为她能独立完成她能独立完成这这件事件事吗吗？beupto“表示：及得上，比得上表示：及得上，比得上”。如：。如：ThenewbookofSmithsisnotuptohislast.史密斯先生的史密斯先生的这这本新本新书书不及他写的前一本好。不及他写的前一本好。2.Haveyouheardthelatestnews?latest意为意为“最新的最新的,最近的最近的,最迟的最

13、迟的”,是形是形容词容词,常放在名词前作定语；常放在名词前作定语；latest也可作副也可作副词词,意为意为“最迟地；最近地最迟地；最近地”。late意为意为“晚的晚的”,是形容词是形容词,其比较级是其比较级是later。later也常用也常用作副词作副词,表示表示“以后以后,后来后来”。如：。如：Shegotuplatestthismorning.她今天早上起床起得最晚。她今天早上起床起得最晚。Shegetsuplaterthanmysister.她比我妹妹起得晚。她比我妹妹起得晚。Canyoutellmeyourlatestlife?能告诉我你最近的生活吗？能告诉我你最近的生活吗？选择括号

14、中的单词填空。选择括号中的单词填空。1.IamsorryIam_(late;latest)thistime.Iwillbeearliernexttime.2.Canyoutellmeyour_(late;latest)life?latelatest3.Thejourneyhastakenseveralmonths.several意为意为“几个的几个的,数个的数个的”,在句中作形容在句中作形容词；词；several也可意为也可意为“几个几个,数个数个”,作代词。如：作代词。如：Severalstudentshaveunderstoodthequestion.有几个学生已明白这个问题了。有几个学生

15、已明白这个问题了。SeveralofthemhavebeentoShanghai.他们之中有几个人去过上海。他们之中有几个人去过上海。Completethesentences.1.你曾经进入过太空吗？你曾经进入过太空吗？_youever_intoouterspace?2.你弟弟曾经在大海里游过泳吗？你弟弟曾经在大海里游过泳吗？_yourbrotherever_inthesea?3.魏明曾经坐飞机游遍全国。魏明曾经坐飞机游遍全国。WeiMing_thecountrybyplane.HavebeenHasswumhasbeenallover4.还有他没参观过的地方吗？还有他没参观过的地方吗？Ist

16、hereanywherethathe_?5.Sally邀请了我有朝一日跟她一起待在英国。邀请了我有朝一日跟她一起待在英国。Sally_metostaywithherinEnglandoneday.hasntvisitedhasinvitedListenandunderlinethewordsthespeakerstresses.1.Ivejustmadeamodelspaceshipforourschoolproject.2.IhaventstartedyetbecauseImnotsurehowtomakeit.3.Hasitarrivedyet?4.Astronautshavealread

17、ybeentothemoon.Findoutthepresentperfectsentencestotellwhattheyhavedone,andwhattheyhaventdone.1.Ivejust madeamodelspaceship.2.Ihaventstartedityet.3.Haveyouheardthelatestnews?4.Scientistshave sentaspaceshiptoMars.5.Thejourneyhas takenseveralmonths.6.Ithasarrivedalready?7.-SohavetheydiscoveredlifeonMar

18、s?-No,theyhaventyet.8.Astronautshavealreadybeentothemoon.9.Butnoonehas beentoMarsyet.Nowthinkaboutthisspacetravel.Whathavewedone?Whathaventwedone?WehavealreadysentaspaceshiptoMars.WehavejustWehaveLetswritemoresentencesandseewhohasthelongestlist!Wehaventfoundlifeonthemoonyet.WehaventWehaventMakealist

19、ofwhatwehaveandhavenotdoneinspacetravel.WehaveWehaventsentaspaceshiptoMarsdiscoveredlifeonMarsbeentothemoonsentanastronauttoMarsWorkinpairs.Talkaboutspacetravelwiththelistsofwhatwehaveandhavenotdone.2.Dontpanic!不要惊慌不要惊慌!-HavewesentaspaceshiptoMars?-Yes,wehave.But现在完成时态现在完成时态(II)现在完成时态可用于表达刚刚做完某事或现在完

20、成时态可用于表达刚刚做完某事或已经做完某事已经做完某事,常见的标志词有常见的标志词有already,just,yet等。下面我们一起看看这几个词的用法等。下面我们一起看看这几个词的用法:(1)already意为意为已经已经,just意为意为刚刚刚刚,常放在常放在have/has和动词之间和动词之间,两者常用于肯两者常用于肯定句中。如定句中。如:Theyhavealreadyarrivedatthehospital.他们已经到达医院了。他们已经到达医院了。(2)yet多用于否定句中多用于否定句中,意为意为还还(没没)；也；也常用于疑问句中常用于疑问句中,意为意为现在现在,已经已经。如。如:The

21、sunhasnotrisenyet.太阳还没有升起。太阳还没有升起。Hasthemanfinishedtheworkyet?这个男人做完工作了吗这个男人做完工作了吗?1.Dontworryabouthim.Hehas_arrivedathomesafely.2.Haveyoutoldhimthenews_?3.Ihave_eatensomerice.NowIamfull.yetjustalreadyalready/justyetjust/alreadyPractice:Completethesentenceswiththewordsinthebox.Fromtheabovelist,wesee

22、thatthereisalotofknowledgeforyoutoexploreabouttheouterspace.Thinkaboutwhatyouaregoingtodotothespacewhenyougrowup.Youmayworkingroups,makeadialogueorwriteashortpassage.Makeadialogue.Tellyourpartneraboutsomethingyouveborrowedthisweek.somethingyouvedonerecently.amodelofsomethingyouhaveseen.somethingscientistshavediscovered.Workinpairs.谢谢！