更新时间:2025-08-12 11:33:27
unit1lifeonmars
一.教学内容:
unit1lifeonmars
maintask:
writeyourownguidetolivingonmars.
tasks:
1.use‘can,could,may,might’totalkaboutpermission.
2.expresspersonalfeelingsconcerningafuturesituation.
二、重点、难点:
comicstrips
1、howdoyoulikelifeonmars?ihateit. 你觉得火星上的生活怎么样?我讨厌它。
①howdoyoulike? 你觉得……怎么样?主要用来询问对方对某事的印象,也可以改为“whatdoyouthinkof…”这一句型。
eg.howdoyoulikethisbook?ithinkit’sagoodbook.
howdoyoulikechina?ilikeitverymuch.
whatdoyouthinkofchina?
②hate讨厌,不喜欢,后可跟名词、代词、动名词或动词不定式。
eg.ihatemondaymorning.
hehatesherbecauseshealwaysplaystricksonhim.
ihatewatchingtv,iprefertoread.
shehatestodriveatnight.
hate的同义词是dislike,反义词是like/enjoy。
2、ithoughtyoulikedmars.我原以为你喜欢火星。
ithought…“我原以为…”,是指过去曾有这样想法,但事实却不是这样。
ithink…是指现在这样认为,往往与事实是相符的。
eg.ithinkheisathief.
ithoughthewasathief.
welcometotheunit
1、helpdanielcomparelivingonmarstolivingtoearthatpresent. 帮助daniel把住在火星上与现在住在地球上作个比较。
compare“比为”、“比作”,常与to连用,意为“比喻”、“把……比作”,有时也表示“将……同……作比较”。
eg.wemaycomparetheworldtoastage.
lifeisoftencomparedtovoyage.
2、wewillbecaredforbyrobots. 我们将由机器人来照顾。
carefor 照顾、照料,相当于lookafter/takecareof
eg. thesickmustbecaredfor.
wecareforoneanotherhere.
carefor还可表示“喜欢”、“愿意”。
eg. shedoesn’tcareforskating.
3、foodwillbeintheformofpills. 食物将是药丸的形状。
intheformof…呈现…形状,处于某种形式,form形状,形态。
eg. thecakesareallintheformofstars.
hesawastrangeforminthefog.
4、makepeoplefeelveryill.使人们感到很不舒服。
reading
1、movingtomars 移居、适居到月球上。
movev.①适居、搬迁,常跟to连用
eg.they’regoingtomove.
areyougoingtomovetobeijingnextmonth? 你们下个月将迁到北京去吗?
②搬动、移动
eg.we’dbettermovethedeskintothenextroom.
pleasemoveyourcar.it’sinmyway. 请把你的车动一下,它挡路了。
③vt.打动、使感动
eg.whathesaidmovedeveryone.
thestorymovedusdeeply.
move有二个形容词形式,即moving和moved
moving“令人感动的”,通常指一件事或一种情况。
moved“感动的”,其主语往往是人。
eg.theplayisverymoving.
weweregreatlymovedbywhathesaid.
2、atthemoment,itmaybedifficulttoimagine,but…. 现在,很难想象,但是…。
atthemoment “现在、目前”
eg.wehavenocarsatthemoment.我们现在还没有汽车。
mymotheriscookingthemealatthemoment.我妈妈现在正在做饭。
imagine v.想象、设想,后跟名词、动名词或从语作宾语,也可跟复合宾语。
eg.littletomlikestoimaginehimselfanairpilot. 小汤姆喜欢想象自己是个飞行员。
canyouimagineherbecomingapilot?
youcan’timaginehowimissedyou. 你们不能想象我多想念你们。
imaginev.→imaginationn.→imaginativeadj.
3、bythetear2100,wewillliveontheplanetmars. 到21XX年,我们将生活在火星上。
by 介词,“到……为止”,后跟将来时的时间,用一般将来时;后跟过去时的时间,用过去完成时。
eg.bynextmonth,we’llfinishlearningbookthree.
bylastyear,theyhadworkedtherefor20years.
4、firstofall,transportshouldbemuchbetter.
firstofall=first 首先,第一;指在所有的事中,首先要做的事
eg.firstofall,letmesaysomethingaboutourplan.
atfirst 最先,当初;指事物最先的情况,而后来往往有变化。
eg.atfirstididn’tlikehim,butnowido.
5、atpresent,ourspacecraftaretooslowtocarrylargenumbersofpeopletomars. 眼下,我们的太空飞船太慢了,不能把大批人送到火星上。
largenumbersof=anumberof…“许多、大量”,修饰可数名词的复数
eg.chineseisspokenbythelargestnumbersofpeople. 讲汉语的人最多。
largenumbersofmyfriends/anumberofmyfriendscametotheparty.
6、topreventthis,humansonmarshavetowearspecialbootstomakethemselvesheavier.为了预防(防止)这一切,在火星上的人必须穿上特制的鞋子来给自己加重。
prevent①vt.防止、避免
eg.preventaccidents
②vt.阻挡、制止
preventsb.(from)doingsth.
eg.therainpreventedusfromcomingintime. 下雨使我们没有及时到来。
nobodycanpreventusfromgettingmarried. 什么也不能阻止我们结婚
类似的短语有:stopsb.(from)doingsth
keepsb.fromdoingsth
eg.hestoppedthechildfromplayingneartheriver.
therainkeptusfromgoingout.
7、everystudentwillhaveacomputerathomeconnectingtoaninter-planetcomputernetwork. 每个学生家里将有一台电脑和行星之间的电脑网络相连接。
connectto 把……和……相连接
eg.thekeyboardhasbeenconnectedtothecomputer.
在上句中,connectingto…是现在分词短语作定语,修饰acomputer
8、however,insomeways,lifeonmarsmaynotbebetterthanlifeonearthtoday.然后,从某些方面说,火星上的生活可能没有今天地球上的生活好。
insomeways=inaway=inoneway
9、apowerthatkeepsusfromfloatingintheair.(p.6) 一种阻止我们在空气中漂的能力。
keepsb.fromdoingsth. 预防/防止某人做某事,相当于preventsbfromdoingsth.
eg.therainkeptusfromgoingout.
vocabulary
1、takeshigh-qualityimages 拍高画质的图像
take 在这里的意思是拍摄
eg.takephotos
2、fixedtothewallstopreventfloating 被固定在舱壁上以防止漂浮。
fix 用作动词,表示“将……固定在另一个物体上”,“安装”,“使……固定”,常与to连用
eg.pleasefixtheshelftothewall.
thetablewasfixedtothefloor.
3、whichdoyouthinkistheleastimportant?
theleastimportant 最不重要的,themostimportant
lessimportant 不太重要的,moreimportant
doyouthink 是个插入语,不作成份
此时若疑问词作主语,语序不变;若疑问词作其它成份,后面的句子需要用陈述句语序。
eg.who(doyouthink)isoverthere? (你认为)谁在那里?
what(doyouthink)hashappened? (你认为)发生了什么事?
whatdoyouthinkishoulddo? 你认为我该做什么?
wheredoyouthinkyoumostliketogo? 你认为你最喜欢去哪里?
grammara
a using‘can’,‘could’,‘may’and‘might’totalkaboutpermission. 用can,could,may,might表示请求或给予许可。
1、can 常用于口语中,表示非正式的请求,请求对象一般是朋友或家人。
eg.caniuseyourcomputer?
caniwatchtv,mum?
2、could 是can的过去式,但在口语中,could常代替can来向对方委婉地提出请求,比can正式,请求的对象一般是老师或成年人,这时could不表示过去时态,回答时一般用can或can’t。
eg.couldiaskaquestion,mr.li?
yes,youcan./no,youcan’t.
3、may也可用来征求对方的意见,表示“可以”,相当于can,但比can更正式和礼貌,请求的对象一般是陌生人或你所尊敬的人。
eg.mayiborrowthishelmet?
yes,youmay./no,youmaynot.
4、might 是may的过去式,但它也可以用来征求对方的意见,比may、could更礼貌,但很少用。这时might不表示过去时态,回答用may。
eg.mightispeaktohimnow?
yes,youmay./no,youmaynot./i’mafraidnot.
unit1lifeonmars
第一部分简要提示
一、年级:九年级
二、教学内容:unit1lifeonmars
三、课型:reading
四、教学目标
1.知识目标
掌握本课时的四会单词、主要词组和句型。
2.能力目标
1)学会运用本课所学的主要词汇和句型来简单描述未来生活。
2)学会略读和寻读等阅读技巧。
3.情感目标
引导学生思考在另一个星球上生活的前景和可能性,比较不同环境的优点和缺点,激发学生探索未知世界的热情。
五、教学重难点
1.重点
1)学习和运用四会单词、词组。
2)掌握略读和寻读等阅读技巧。
2.难点
1)everystudentwillhaveacomputerathomeconnectedtoaninterplanetarynetwork.
2)comparedwithlifeonearth,lifeonmarswillbebetterthanlifeonearthinmanyways.
3)therewillbevariousdesignsforsettlerstochoosefrom.
3.思考在另一个星球上
第二部分教学流程
用时:25分钟
step1 pre-reading 用时:分钟
(出境)
t:hi,everyone!gladtomeetyou.welcometounit1reading.(同学们,你们好.今天我们来学习unit1阅读)
t:everyoneknows that chang’eⅰhasbeenlaunchedintospacelately.人人知道最近嫦娥一号被发射到太空.that’sreallyexciting.itcanhelpus toknowmoreaboutmoon.doyouwanttoliveonmoonorsomeotherplanets?weareusedtolivingonearth,butsomepeoplearethinkingaboutmovingtootherplanets.why?let’slookatsomepicturesfirst.(ppt)
partone lead-in
t:whatcanyoufindfromthepictures?
----whatproblemsdoesearthhave?
t:thepicturesshowthatearthhastwoproblems:oneisthelargepopulation(it’scrowded),theotheristheseriouspollution(it’spolluted).
t:nowearthiscrowedandpolluted.whatshallwedo?somescientistssaythereisabetterworld—mars.doyouknowtheplanetmars?andbeforewestarttoreadthearticlemars.let’shavealookatthesenewwordsfirst.
parttwo pre-reading
t:pleasefillintheblankswiththecorrectwordsaccordingtothewholesentenceandtheenglishexplanationinthebrackets.(请根据句子含义及括号内的英语解释填入所缺单词) (ppt)
t:ok.let’schecktheanswerstogether.
1.alargebodyinspacethatmovesaroundthestar,e.g.,thesunmeansplanet.
2.apowerthatkeepsusfromfloatingintheairmeansgravity.
3.avehicledesignedfortravelinspacemeansspacecraft.
4.peoplewhogotoliveinanewplacemeansettlers.
growandimprovemeansdevelop.
5.machinesthatcandotasksunderthecontrolofcomputermeanrobots.
smallroundpiecesofmedicinemeanpills.
t:nowreadthenewwordsafterme.(2遍)
newwords: planet gravity spacecraft
settlers develop robots pills
t:boysandgirls,howmuchdoyouknowaboutmars?doyouitscolor,itssizeandsomeotherinformation?nowletmeshowyoumyresearchonmars.(ppt)
1.thecolorofmars: red ;
2.thesize:aboutone-halfthediameterofearth;
3.location:bit’sbetweenearthandjupiterinoursolarsystem.
4.itsmoons:phobosanddeimos
5.surface:thesurfaceofmarsisalittlelikethesurfaceofearth.
6.temperature:thelowesttemperaturewillbe-133℃(degreescentigrade)andthehighestwillbe27℃
(整屏显示6点知识)(ppt)
t:nowyouhavelearnedsomethingaboutmarsfrommyresearch.butisthereanythingelseyouwanttoknowaboutmars?whatisthefastestwaytolearnmoreaboutmars?
t:that’ssearching theinternet.nowlookatthekeywords.guesstheirmeaningsfirstandthenusethesearchenginestohelpyou.trytofindtheinformationaboutthemontheinternet.(下面我们来看这些关键词,先猜测它们的含义,然后用搜索引擎来验证你的猜测是否正确.,再在网上找到有关他们的信息.)
超链接)(ppt)
1.crowdedplanet:thepopulationonearthisabout6.4billionin.it’sstillincreasingquickly…populationheremeansthenumberofpeople. (ppt)(XX年地球人口为64亿,现在这个数字还在快速增长。)
2.spaceshuttles:theyarenewkindsofspacecraftwhichcantravelfasterinspace.(ppt)(他们是新型的可以在太空里飞行更快的航天飞机。)
3.speedboots: theyarespecialshoesthatcanmakeyouwalkfasterinspace.(他们是可以使你在太空行走更快的特殊鞋子。)
4.spacehome:it’saspecialroundhouseinspace.(这是在太空里的特殊的圆形房子。)(ppt)
5.robotsettlers: settlersarethepersonswhomovetoanewplace.(拓荒者是第一批搬到一个新地方的人。)/mayberobotswillmovetomarsandliveonitfirst.(ppt)
6.onlineteacher:theteacherwhocanhelpyouatanytimeandanyplaceinanon-lineschoolsiscalled‘e-teacher’.(在线老师可以在任何时候、任何地方帮助你。)(ppt)
steptwo while-reading 用时:分钟
taskoneskimming
t:nowwouldyoupleaseopenyourbooksatpage8?readthearticlequicklyandfindoutthekeywordofeachparagraph.itcanbeawordorsomewords.youdon’thavetoreaditwordbyword.justskimit.thiskindofreadingskilliscalledskimming.(同学们,请快速地阅读文章的第一段,帮我找到其中的关键词。它可能是一个单词或几个单词,阅读时你没有必要逐字逐句地读,要跳读,这种阅读技能叫做略读)。
t:ok,boysandgirls.let’schecktheanswersnow: (ppt)
para1 crowded,polluted (population,pollution)
para2 transport
para3 food,waterandair
para4 gravity
para5 home
para6 school
para7 food
tasktwoscanning
t:that’sveryeasyforyou,right.readeachparagraphagain,thistimeyoushouldbemorecarefulandpaymoreattentiontothedetails.whilereadingthearticle,pleasefindouttheanswerstothequestions.it’sanotherkindofreadingskillcalledscanning (请同学们再仔细阅读文章每一段内容,这次希望同学们读得更加仔细。在阅读的的同时,请大家思考这些问题的答案。在阅读的同时找出文章中细节性的内容,这种阅读技能叫做寻读。(2-
t:now,boysandgirls,pleaselookatthescreenhere,let’schecktheanswers.(ppt)
※transport (ppt)
1whatvehicledopeopleusetomarsatpresent?andhowlongdoesittake? (spacecraft. months.)
2whatvehiclemaypeopleusetogotomarsinthefuture?
andhowlongwillittake?
(spaceshuttles.onlyaveryshorttime.)
※air,water,food (ppt)
3whatwillscientistsdotosolvetheproblemsoffood,waterandair?
(scientistswilldevelopplantsthatcangrowonmarsandproducethefood,waterandoxygen.)
4whatwillfoodonmarsbelike?
(maybethefoodwillbeintheformofpillsandwillnotbeastastyastheyaretoday.)
※gravity (ppt)
5isgravityonmarsabigproblem?why?
(yes,itis.becausethegravityonmarsisthree-eighthsofthegravityonearth.)
6whatmayhappenthen?
(peoplemayjumphigheasilyandfloatawayintospace.)
7whatkindofshoesshouldpeoplewear?
(peopleshouldwearspecialbootstomakethemselvesheavier.)
※home (ppt)
8whatkindofhousemaypeoplelivein?
(aspecialdomewith10bedroomsishighlypossible.)
9whowilldomostofourwork?
(robotswilldomostofourwork.)
※ school (ppt)
10whatkindofschoolwillstudentsstudyin?andwhatdotheycalltheirteacher?
(studentscanstudyinonlineschoolsandtheycalltheirteacher‘e-teacher’.) (连接星际电脑网络)
t:well,youreallydidagoodjobtoday..fromthereadingweknowthatlifeonmarsisverydifferentfromthatonearth.pleasecomparethesesdifferencesandfillintheformbelow(ppt)
.t:haveyoufinishednow?let’schecktheanswerstogether.
step3post-reading 用时: 分钟
taskone fillintheblanks (ppt)
earthtoday marsin2100
pollutedandcrowded 1
spacecraftareslow. 2
gravityisnotaproblemforus. 3
peoplecanwearmanytypesofshoes. 4
peopledonothavemuchspace. 5
wetakeexamsatschool. 6
wehavemanykindsoffoodwithdifferenttastes. 7
keys:
1 cleanandhaslotsofspace
2 spaceshuttlestravelathalfthespeedoflight.
3 onlyaboutthree-eighthsofthegravitythatwehaveonearth
4 peoplewearspecialboots.
5 peopleliveinadomewith10bedrooms.
6 wetakeexamsinonlineschools.
7 mealsarejustpills.
t:congratulations!you’vegotalltherightanswers.youknowevery‘coinhastwosides’.herearesomegoodpointsandbadpointsoflivingonmars.wecallthe‘goodpoints’“advantages”and‘badpoints’“disadvantages”.(我们知道:事物都有正反两方面,下面我们来看一下在火星上生活的利弊。我们把好的方面叫做“advantages”,把不好的方面叫做“disadvantages”。)pleaselookatthescreenandfillintherightwords.(ppt)
t:ok?let’schecktheanswersnow.
advantages
※ it’snot_______or________.
※ the ________ismoreconvenient.
※ peoplewillwearspecial_____
※ peoplewillhave______space.
※ ______willdomostofourwork.
※ we’llhavemoretimefor_______.
※ studentswillstudyin______schools.
keys:
1crowded polluted 2 transport 3boots 4 more
5robots 6hobbies 7 online
disadvantages
※ low_______willbedangerous.
※fooddoesnottaste_____.
※spacetravelmakepeoplefeel________.
※it’stoo___tostayoutside.
※it’stoo____awayfromfriendsonearth.
keys:
1 gravity 2 good 3 ill/sick 4 cold 5 far
t: nowwouldyoupleaseopenyourbooksatpage11ofthestudents’book.pleasecompleteexercisec1onpage11
t: .haveyoufinishedthem?let’schecktheanswers.(ppt)
keys:
1 a 2 b 3 c 4 c
5 b 6 b 7 a 8 b
t:welldone,you’verememberedsomuchaboutmars.doyouhaveanydifficultieswhilereading?let’slookatsomesentencestogether.
t:importantsentences (ppt)
1therewillbevariousdesignsforsettlerstochoosefrom.将有许多种设计可供移居者选择。
tochoosefrom…意思是“从……中挑选”。
eg 我有很多双鞋子可以选择,但我决定不了选哪双。
ihavemanypairsofshoes_____________(tochoosefrom),
butidon’tknowwhichpair__________.(tochoose)
2 thejourneymighttakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.用以光速一半速度飞行的太空穿梭机进行的旅程可能只要花很短的时间。
分析:此句是that连接的定语从句。that引导的定语从句修饰先行词spaceshuttles,从句中的动词的人称和数由先行词spaceshuttles决定。
3 comparedwithlifeonearth,lifeonmarswillbebetterinmanyways.
与在地球上的生活相比,火星上的生活在很多方面将会更好.
comparewith…意思是“与……做比较”。在句中是过去分词短语作状语,此时with和to可通用。
eg 与我们的那条路相比,这条路繁忙得多。
thisroadisquitebusy______ ____ours.(compared…with/to)
4everystudentwillhaveacomputerathome connectedtointer-planetarynetwork.每个学生在家里有一台连接星际网络的电脑。
connectto意思是“与……连接”。这里的connectedto是过去分词后置作定语,修饰computer。当然我们也可以用connect…to…结构表示“把…和…连接起来”。
eg 江阴大桥把江阴和靖江连接了起来.
jiangyinbridge_______jiangyin___jingjiang. (connects…to)
t:well,boysandgirls,youreallydidagoodjobtoday.
t:小结
今天我们学习了一些描述火星生活的词汇、句型,并且讨论了火星上未来生活的优缺点。希望同学课后认真巩固课文内容,用自己的语言来简单描述火星生活。
t:today’shomework:(ppt)
1 readthepassagealoud.
2 finishofftheadditionalexercises.
t: that’stheendofmyclass.good-bye,everyone.seeyounexttime.
additionalexercises:
用括号内所给词的适当形式填空:
1thereislessair________(pollute)intownthatinthetown.
2lookatthenewestt-shirt.it’smadeofcotton.ithinkitwillbecome______(fashion)thissummer.
3it’s______(high)possiblethatpeoplecanliveonmarsinthefuture.
4grandmaistooold_______(settle)onanotherplanet.
5thehelmetismadeofmetal.it’stooheavy.when
iwearit,ifeel_________(comfort).
6myfathercooksverywell.thefoodhecooksisas
_______(taste)asthatintherestaurant.
7herearemanykindsofmooncakesforyou_____(choose)from.
8______(compare)withwhathehadalready,thenewstampswerenotveryinteresting.
9_______(hope),doctorshavefoundanewwaytooperateonthepatients---flyinghospital.
10weshouldkeepwaterfrom_____(be)polluted.
keystoadditionalexercises:
1 pollution 2 fashionable
3 highly 4 tosettle
5 uncomfortable 6 tasty
7 tochoose 8 compared
9 hopefully 10 being
说 明
本课时是9bunit1的reading。这一课时展望了将来人们在火星上的生活状况。文章分别就交通、重力等5个方面讨论了火星上生活的优缺点。在组织教学时,教师要鼓励学生展开想象,提醒学生在谈论未来生活时很多答案没有对错之分。同时教师还应注意对学生略读和寻读等阅读策略的训练。
unit1lifeonmars
一.教学内容:
unit1lifeonmars
二.教学目标:
本单元重点词汇、短语和语言点知识
【具体教学过程】
9bunit1
一、重点单词
机器人n. robot
片剂,药片n.pill
网,网络n. net
吉他n. guitar
太阳镜n. sunglasses
帐篷n. tent
储藏,存储v.store
表面n. surface
干缩的,干的adj.dried
想象,设想v.imagine
拥挤的adj.crowded
被污染的adj.polluted
可以指望;怀希望地adv.hopefully
宇宙飞船n. spacecraft
航天飞机n. spaceshuttle
人;人的n.&adj.human
发展v.develop
移居者n.settler
流行的,时髦的adj.fashionable
各种各样的,不同的adj.various
巩固练习:
1.insummertravelersweartheirs______________________becauseofthebrightsunshine.
2.h_____________________,wecanbuildabetterworldonmars.
3.myfriendismusical.heisgoodatplayingtheg____________.
4.whenyouareill,youshouldtakep___________________ontime.
5.it’sgreatthatr________________doalltheworkforus.
6.ifyougocamping,youshouldtakeat________________withyou.
7.fishingn________________isuselessonthemoon.
8.lastsummerholidayiwenttobeijinganditooklotsofphotoswithmyc______________
9.scientistsshouldd ________ plantsthatcangrowonmars.
10.thebootswillprobablybecomef _________ .
二、重点短语
1、与某人相处得好 getonwellwithsb.
2、认识某人 gettoknowsb
3、被照顾 becaredfor
4、使我不开心 makemeunhappy
5、三副太阳镜 threepairsofsunglasses
6、避免漂浮 preventfloating
7、连接到氧气罐 beconnectedtotheairtank
8、在星球的表面 onthesurfaceoftheplanet
9、到21XX年为止 bytheyear2100
10、越来越拥挤和受到污染 moreandmorecrowdedandpolluted
11、3/8的引力 three-eighthsofthegravity
12、运送大量的人 carrylargenumbersofpeople
13、飘进太空 floatawayintospace
14、不同的设计供定居者选择 differentdesignsforsettlerstochoosefrom
三、课文结构和语言点知识
paragraph1:whywemovetomars?
1.movingtomars(l.1)
move:
①moveto搬家,搬迁
他家去年搬到加拿大去了。
hisfamily__________________________canadalastyear.
他们正准备搬到北京。
theyare__________________________beijing.
②move用作动词,可以表示“移动,前进,走棋”。
don’tmove!
该你走棋了。
it’syourturn_____________________!
③move用作动词还可以表示“使感动;打动”。
我被这部电影深深地打动了。
i________deeply___________bythefilm.
2.atthemomentitmaybedifficulttoimagine,butmanypeoplebelievethat,bytheyear2100,wewillliveontheplanetmars.(l.2)
①maybe可能是情态动词may+动词原形
这可能是一本好书。
thismaybeagoodbook.
火星上可能有空气。
theremaybeaironmars.
maybe副词=probably,修饰动词、句子。
maybethisisagoodbook.
maybethereisaironmars.
②it’s+adj.+(forsb.)todosth.
对我们来说学好英语很有必要。
it’snecessaryforustolearnenglishwell.
③imaginev. (adj.)imaginative(n.)imagination
你能想象没有电脑的生活吗?
canyouimaginelifewithoutcomputers?
想象一下生活在月球。
imaginelivingonthemoon.
想象一下火星上的生活可能是什么样。
imaginewhatlifecouldbelikeonthemars.
3.ourownplanet,earth,isbecomingmoreandmorecrowdedandpolluted.(l.3-4)
①moreandmore越来越多
越来越多的人/污染
moreandmorepeople/moreandmorepollution
越来越少(不可数)
lessandless
越来越少(可数)
fewerandfewer
②比较级+比较级:“越来越”
越来越容易/越来越强大
easierandeasier/strongerandstronger
越来越拥挤/越来越受到污染
moreandmorecrowded/moreandmorepolluted
4.hopefully,wecanstartagainandbuildabetterworld.(l.5)
n./v.hope adj.hopeful adv.hopefully
无论我们身在何地,都不能失去希望。
whereverweare,weshouldnotloseour______________.
充满希望
befullofhope:behopeful
他有希望赢得第一名。
heis_______________togetthefirstprize.
______________________,hewillwinthefirstprize.
5.hereiswhatlifemightbelike.(l.6)
宾语从句:主前动后是语序。
这部电影展示了老北京的样子。
thisfilmshowswhatoldbeijingwaslike.
你能告诉我他住哪里吗?
canyoutellmewherehelives?
paragraph2:transportonmars
1.firstofall,thetransportshouldbemuchbetter.(l.7)
①firstofall首先(最为重要的是)
首先把所有单词记住。
firstofall,rememberallthewords.
atfirst起先,开始。
atfirst,ifindenglishabitdifficult.
②muchbetter
much+比较级 表示程度
我的头发比她的长很多。
myhairismuchlongerthanhers.
heis_________busy____helpme.
a.somuch,that b.muchtoo,to c.toomuch,to d.somuch,to
修饰比较级的副词:
even,far,alot,alittle,abit
2.ourspacecraftaretooslowtocarrylargenumbersofpeopletomars.(l.7-8)
①spacecraft 复数__________________________
chinese,japanese,spacecraft,fish,sheep,deer(单复数同形)
②too…to太……以致于不能……
sheistooyoungtolookafterherself.
“too…to”结构可以转换成“so…that…”或“not+形容词+enough”句型。
thelittleboyistooshorttoreachtheapple.
theboyis__________short____________hecan’treachtheapple.
theboyisn’t_______________________________________reachtheapple.
③largenumbersof许多的,大量的
=a(large)numberof=a(great)numberof
很多树
largenumbersoftrees
thenumberof………的数量
学生的数量
thenumberofthestudents
3.thejourneymighttakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.(l.9-11)
①比较:旅行journey,travel,tour,trip,voyage
②take在这儿表示“花时间”.
ittakes(took)sb.sometimetodosth.
同意短语:
sb.spendtime/money(in)doingsth./onsth.
她每天花半小时练习跳舞。
it______________herhalfanhour___________________________dancing.
she______________halfanhour_____________________________dancing.
she______________ halfanhour____________________________.
(sth.)costsb.money某物花了某人多少钱
③speed n.
atfull/topspeed以全速
atahigh/lowspeed
ataspeedof… 以……的速度
以光速的一半的速度
athalfthespeedoflight
v.speeded(sped)
speedup加速
paragraph3:food,waterandair
1.humansneedfood,waterandairtosurvive.(l.12)
①human ahuman humans
germans walkmans policeman
②need(行为动词)翻译成“必须”,“需要”
1)needsth.todosth.需要某物去做某事
我们需要一些水喝。
weneedsomewatertodrink.
他们需要一些人去帮他们。
theyneedsomepeopletohelpthem.
2)(不)需要做某事
(don’t)needtodosth.
我不需要思考这个问题。
idon’tneedtothinkaboutthisquestion.
③need(情态动词)翻译成“必须”,“必要”
(不)必要做某事
need(not)dosth.
你不必担心。
youneedn’tworry.
④need(名词)需要
theneedformoney
theneedtoimprovemyenglish
peopleinneed
2.scientistswilldevelopplantsthatcangrowonmars.(l.12)
develop vi./vt.
工业在迅速发展。
industryisdevelopingrapidly.
这个镇是由一个渔村发展起来的。
thetowndevelopedfrom/outofafishingvillage.
thefishingvillagedevelopedintoatown.
hehasdevelopedthehabitofgettingupearly.
thepioneersaredevelopingthewasteland.
developnaturalresources/solarenergy
thephotowilllooknicewhentheyaredeveloped.
培养兴趣
________________________________________
3.however,nobodyisnotsureiftheseplantscanproduceenoughwater.(l.14-15)
besureof/about确信
areyousureof/abouthiscomingintime?
besuretodo 一定会,一定要
sheissuretofindoutthetruthtonight.
makesure(of)确保
hearrivedatthecinemaearlytomakesureofaseat.
paragraph4:gravity
1.thegravityonmarsisonlyaboutthree-eighthsofthegravityonearth.(l.16)
分数的表达方法:分子用基数,分母用序数;分子大于一分母加“s”
三分之一
onethird oneoutofthree
九分之二
twoninths
百分数
percent/ percent
我们年级有五分之一的学生来自其他城市。
onefifthofthestudentsinourgradearefromothercities.
70%的水来自于海洋。
70percentofthewaterisfromsea.
2.topreventthis,humansonmarshavetowearspecialbootstomakethemselvesheavier.(l.19-20)
prevent(vt.及物动词)防止,预防
preventdiseases
使……不做某事,阻止……做某事
preventsb.fromdoingsth.
姚明的腿受伤了。这使他不能打篮球。
yaoming’slegishurt.thispreventshimfromplayingbasketball.
paragraph5:life
comparedwithlifeonearth,lifeonmarswillbebetterinmanyways.(l.23)
1.过去分词作状语。过去分词与主句的主语是动宾关系,即过去分词与主语是被动关系。
(1)theteachercameintoclassroomintothelab,followedbysomestudents.
句意为:老师进入教室,后面跟了一些学生。
teacher与followed形成被动关系
(2)givenachance,icansurprisetheworld.
巩固练习:
(1)____inthemountainsforaweek,thetwostudentswerefinallysavedbythelocalpolice.
a.havinglost b.lost c.beinglost d.losing
(2)theflowershisfriendgavehimwilldieunless(除非)______everyday.(四川高考)
a.watered b.watering c.water d.towater
2.inmanyways 在很多方面
bytheway 顺便问一下
makeone’sway 排除困难前进
inone’sway碍事,妨碍
onone’sway在去……的路上
inthisway用这种方法
thesoldierscutawaythroughtheforest.
开出一条路
thisway,please.
manistryingtofindwaystostoppollution.
paragraph6:study
paragraph7:somedisadvantagesonmars
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