外研社英语八年级下M3U1课件.ppt
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.Thestarsweseeatnightarethesunsinothersolarsystems.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?ApolloMoonlandingMoonexplorationChangeIMoonexplorationChangeIIChangeIIHasmandiscoveredlifeonMars?Yinghuo-1(萤火一号萤火一号)Yinghuo-1wasaChineseMars-explorationspaceprobe,intendedtobethefirstChinesespacecrafttoexploreMars.Itwaslaunchedon8November2011.Owingtoburnsdidnottakeplace,leavingbothprobesstrandedinorbit.On17November,ChineseStatemediaformallydeclaredtheYinghuo-1probelost.Yinghuo-1underwentdestructivere-entryon15January2012,finallydisintegratingoverthePacificOcean.Marsisconsideredtobetheplanetthatcouldbesuitableforpeopletostay.Diameter(直径直径)6,794kilometersQuality(质量质量)6.4219e23kilogramsGoodnews:SomescientistshavealreadysentaspacecrafttoMars.1.Astronautstakethe_togettothe_.Completethesentenceswiththecorrectformofthewordsandphrasesinthebox.spaceshuttlespacestationborrowdiscoverlifemodelrecentlyspacestationspaceshuttle2.Theyhavent_any_onMarsyet.3.The_ofthespacestationisntDamings,andheonlywantsto_it.4.Astronautshaventbeentothemoon_.Thelasttimewasover30yearsago.discoveredlifemodelborrowrecentlyborrowdiscoverlifemodelrecentlyspacestationspaceshuttleListenandnumberthewordsasyouhearthem.earthlandmessagemoonnewsplanetreachscientist12573846Listenagainandcompletethenotes.lnewsaboutthetripto_ljourneyof_monthslhasnotsentbackany_yetlhopetofind_onMarsMarseightmessageslifeListenandchoosethebestanswers.1.Tonyhasmadeamodelofthe_.A.spaceshipB.spacecraftC.spaceshuttle2.HavetheastronautsdiscoveredlifeonMars?_A.Yes,theyhave.B.No,notyet.C.Yes,theydid.ABReadandanswerthequestions.1.WhatschoolprojecthaveDamingandTonygot?2.HowdoesDamingfeelabouttheschoolproject?Spaceship.Heisnotsurehowtomakethemodel.3.WhatnewshasTonyheard?4.HasanyonebeentoMars?Why?SpaceshiptoMarshasreachedthere.No,becauseMarsisveryfaraway,muchfartherthanthemoon.TonyandDamingmeeteachother.Tonyhasjustmadea_ofthespaceship.Damingthinksitsgreat,buthehasnt_hisyet.Theythentalkaboutthelatestnews.Some_havesentaspaceshiptoMars.Ithastakenseveralmonthstogetthere.Readtheconversationandcompletethepassage.Then,actouttheconversationwithyourpartners.modelstartedscientistsTheyhavent_lifeonMarsyet.NoonehasbeentoMarsyet,but_havealreadybeentothemoon.Marsisvery_.Lotsof_are_inordertosendastronautstoMarsoneday.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“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？Isthereanywherethathe_?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.Astronautshavealreadybeentothemoon.Findoutthepresentperfectsentencestotellwhattheyhavedone,andwhattheyhaventdone.1.Ivejust madeamodelspaceship.2.Ihaventstartedityet.3.Haveyouheardthelatestnews?4.Scientistshave sentaspaceshiptoMars.5.Thejourneyhas takenseveralmonths.6.Ithasarrivedalready?7.-SohavetheydiscoveredlifeonMars?-No,theyhaventyet.8.Astronautshavealreadybeentothemoon.9.Butnoonehas beentoMarsyet.Nowthinkaboutthisspacetravel.Whathavewedone?Whathaventwedone?WehavealreadysentaspaceshiptoMars.WehavejustWehaveLetswritemoresentencesandseewhohasthelongestlist!Wehaventfoundlifeonthemoonyet.WehaventWehaventMakealistofwhatwehaveandhavenotdoneinspacetravel.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:Thesunhasnotrisenyet.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,weseethatthereisalotofknowledgeforyoutoexploreabouttheouterspace.Thinkaboutwhatyouaregoingtodotothespacewhenyougrowup.Youmayworkingroups,makeadialogueorwriteashortpassage.Makeadialogue.Tellyourpartneraboutsomethingyouveborrowedthisweek.somethingyouvedonerecently.amodelofsomethingyouhaveseen.somethingscientistshavediscovered.Workinpairs.谢谢！
