学年高中英语人教版必修三Unit4单元导学案教师版定稿.docx
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学年高中英语人教版必修三Unit4单元导学案教师版定稿
2019-2020学年高中英语人教版必修三
导学案
Unit4Astronomy:
thescienceofthestars
Class:
____________No:
_____Group:
____________Name:
______________
Part1WordsandExpressions
【使用说明与学法指导】
1.预习案:
I.练读词汇表、听录音跟读。
II.熟背词汇拓展表。
2.练习案:
堂上使用或课后作业,熟读熟记。
【学习目标】
1.熟读掌握本单元词汇表,并记住适当的拓展词汇。
2.对本单元的词汇熟练运用。
3.能够在课文阅读中加深对词汇的理解和运用。
【预习案】
Task:
练读课本P97-98词汇表,跟读词汇录音。
把下列拓展抄到词汇表里,并熟记。
词汇
拓展
词汇
拓展
system
systematicadj.有系统的,有规则的
exist
existencen.
existentadj.
religion
religiousadj.
puzzle
adj.puzzled感到迷惑的
puzzling令人迷惑的
theory
theoreticaladj.理论的
biology
biologicaladj.
billion
billionairen.亿万富翁
billionsof数以亿计的;亿万
satellite
man-madesatellite人造卫星
violent
violencen.
violentlyadj.
gentle
gentlyadv.
intime
ontime按时
finally/atlast/eventually最终
physicist
physicsn.物理(学)
physicaladj.物理学的;身体的
physicallyadv身体上
unlike
dislikevt.不喜欢;厌恶
extinct
extinctionn.
fundamental
fundamentallyadv.基础地;根本地;从根本上;
crash
crashdown猛然倒下
aircrash飞机失事
presence
presentadj.现在的;目前的;出席的;
v.颁发;授予;呈献;
n.现在;礼物;
lessen
lessadj.较少的(little的比较级);较小的;
adv.较少地,较小地;
harmful
harmv.&n.
beharmfulto=doharmto
weightlessly
weighv.称…的重量;权衡
weightn.重量,体重
weightlessadj.没有重量的,失重的,无重力的;
chain
chainvt.用铁链锁住;监禁,束缚;
nowthat
since
reaction
reactv.
exhaust
exhaustedadj.耗尽的;用完的;筋疲力尽的;精疲力竭的;
exhaustingadj.令人筋疲力尽的
lay
laid,laid,laying
watchoutfor
lookoutfor
mynotes(此外,我还想到了以下拓展)
【训练案】
一.单词填空:
1.Astronomy(天文学)isthescientificstudyofthestars,planets,andothernaturalobjectsinspace.
2.Overtheyearsseveralsimilartheories(理论)havebeenputforward.
3.Weuseaglobe(地球仪)inourgeographyclass.
4.Manycinema-goerswereshockedbythefilm'sviolent(暴力的)andtragicend.
5.Atleastthissecondmeetinghadhelpedtothaw(缓和)theatmosphere(气氛).
6."We'llallbearrested!
"Thomasyelled,whichwasmostunlike(不像)him.
7.Clothesareafundamental(基本的)formofself-expression.
8.Stephennoticedthatthepeoplearoundhimlookedcheeredbyhispresence(出现、在场).
9.Friendshipmultiplies(增加)joysanddividesgriefs.
10.Thebrainrequiresaconstantsupplyofoxygen(氧气).
11.Hecompletelyignoredallthesefactsasthoughtheyneverexisted(存在).
12.Jimmyisadoptedandthus(因此)unrelatedtoBethbyblood.
13.Mysisterpuzzles(使迷惑)meandcausesmeanxiety.
14.Thebiologist(生物学家)advancedanewtheoryoflife.
15.Anapplefallsdownbecauseofgravity(重力).
16.Thetwocountriessignedanagreementtojointlylaunchsatellites(卫星).
17.Ifclimate(气候)changescontinue,wewillsuffertheconsequences.
18.Thescientistcouldnotcalculatewhenthespaceship(太空船)wouldreachtheJupiter.
19.Iletmyselfoutintothestreetandpulled(拉)thedoorshut.
20.Someleaveswerefloating(漂浮)aroundonthestilllake.
二.单句语法填空:
1.Mostreligions(religious)teachyoutobetruthfulandself-disciplined.
2.Global(globe)warmingisarealproblem.
3.TheFrenchgovernmentcalledforanendtotheviolence(violent).
4.Languageissomethingwhichfundamentally(fundamental)distinguisheshumansfromanimals.
5.Thereisageneralawarenessthatsmokingisharmful(harm).
6.Theykeptmechained(chain)upeverynightandreleasedmeeachday.
7.Gracelaid(lay)outtheknivesandforksatthelunch-table.
8.Surelymyexistence(exist)cannotbesopurposeless?
9.Putonrainbootwhenwashingfloor,topreventyourselffromslipping(slip)down.
10.Criticsremainpuzzled(puzzle)bytheBritishelectionresults.
11.Atpresent(presence)childrenunder14arenotpermittedinbars.
12.Helaidhishandgently(gentle)onherhead.
13.HewasawardedtheNobelPrizeforPhysics(physicist)in1985.
14.Theplantisnowindangerofextinction(extinct).
15.Thelifeboatcrashed(crash)againstthesideofthesinkingship.
16.Regularexercisecanhelptolessen(less)thepain.
17.Icheeredupimmediatelyandfloatedweightlessly(weigh)aroundinourspacecabinwatchingtheearthbecomingsmallerandthemoonlarger.
18.Ididn'tquitegetthehangofhisargument.
19.IwasinanightclubinBrixtonandafightbrokeout.
20.Aftersuchalongandexhausting(exhaust)day,theonlythingshewantedwasagoodnight'ssleep.
Part2LanguagePointsinReading1
【使用说明与学法指导】
1.预习部分:
I.精读课文,互译文中的词汇、句型及语法结构。
II.记下自己的疑问,以备堂上讨论,释疑。
2.探究部分:
堂上完成。
3.练习部分:
堂上或课后完成。
【学习目标】
1.熟读掌握Reading1中出现的语言点,温故知新。
2.重点掌握Reading1语言点重难点的运用。
【预习案】
温故知新:
文中表达法互译或按课文填空。
正文
Qs
HOWLIFEBEGANONTHEEARTH
Nooneknowsexactlyhowtheearthbegan(宾语从句),as(由于,因为)ithappenedsolongago.However,accordingto(根据)awidelyaccepted(广泛接受的)theory,theuniversebeganwitha"BigBang"thatthrewmatterinalldirections(四面八方).Afterthat,atomsbeganto(开始去做...*begindoingsth.)formandcombinetocreatestarsandotherbodies.
Forseveralbillionyearsafterthe"BigBang",theearthwasstilljustacloudofdust.Whatitwastobecome(主语从句;betodosth.计划,安排做...)wasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe(定语从句).(随后它变成什么没人知道,直到38亿至45亿年前,这团尘埃才慢慢地形成了一个固体的球状物)Theearthbecamesoviolentthat(如此...以致于...)itwasnotclearwhethertheshapewouldlastornot(主语从句).Itexplodedloudlywithfireandrock.Theywereintimetoproducecarbon,nitrogen,watervapourandothergases,whichweretomaketheearth'satmosphere(最终产生二氧化碳、氮气、水蒸气和其他气体,从而形成了地球的大气层).Whatisevenmoreimportant(主语从句)isthatastheearthcooleddown,waterbegantoappearonitssurface(表语从句).
WaterhadalsoappearedonotherplanetslikeMarsbut,unliketheearth,ithaddisappearedlater.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife(主语从句;befundamentalto...对...是必要的/根本的).Whatmanyscientistsbelieve(主语从句)isthatthecontinuedpresenceofwaterallowedtheearthto(允许...做...)dissolveharmfulgasesandacidsintotheoceansandseas(很多科学家相信,地球上长期有水存在,使地球得以把有害气体和酸性物质溶解在海洋里).Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop(it作形式宾语).
Manymillionsofyearslater,thefirstextremely(极其;非常)smallplantsbegantoappearonthesurfaceofthewater.Theymultipliedandfilledtheoceansandseaswith(用...装满)oxygen,whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish(allsortsof各种各样的).Next,greenplantsbegantogrowonland.Theywerefollowedintimebylandanimals.Somewereinsects.Others(一些...另一些),calledamphibians(过去分词作定语),wereabletoliveonlandaswellas(和)inthewater.Laterwhentheplantsgrewintoforests,reptilesappearedforthefirsttime(第一次,作状语).Theyproducedyounggenerallybylayingeggs(by+v-ing通过做...).Afterthat,somehugeanimals,calleddinosaurs(过去分词作定语),developed.Theylaideggstooandexistedontheearthformorethan140millionyears.However,65millionyearsagotheageofthedinosaursended.Whytheysuddenlydisappeared(主语从句)stillremainsamystery.Thisdisappearancemadepossibletheriseof(...的出现)mammalsontheearth.Theseanimalsweredifferentfrom(与...不一样)alllifeformsinthepast,becausetheygavebirthtoyoungbabyanimalsandproducedmilktofeedthem.
Finallyabout2.6millionyearsagosomesmallcleveranimals,nowwithhandsandfeet,appearedandspreadallovertheearth(遍及各个角落).Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.Buttheyarenotlookingaftertheearthverywell.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.Asaresultofthis(由于这样),manyscientistsbelievetheearthmaybecometoohotto(太...以致不能...)liveon.Sowhetherlifewillcontinueontheearthformillionsofyearstocome(主语从句)willdependonwhetherthisproblemcanbesolved(宾语从句).(生命究竟是怎样起源的是科学家们觉得最难解决的问题之一)
Usefulexpressions:
accordingto根据...layeggs下蛋
allowsb.todosth.允许...做...bedifferentfrom与...不同
fill...with...用...装满...asaresultofthis由于这样
forthefirsttime第一次dependon依赖;依靠
intime及时,终于beharmfulto对...有害
givebirthto产生;分娩inone’sturn轮到某人
prevent...from阻止;制止
【探究案】
KeywordsandexpressionsinReading1
1.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”...
然而,一种普遍为人们所接受的理论是:
宇宙起源于一次大爆炸……
【拓展】
beginwith=startwith以……开始;由……作为开头
tobeginwith首先;第一点
【例句】
1)Theproceedingswillbeginwithaspeechtowelcometheguests.
大会议程首先是向来宾致欢迎辞。
2)Tobeginwith,sheistooyoungforthatkindofjob.
首先,她做这种工作年纪还太轻。
2.Theywereintimetoproducecarbondioxide,nitrogen,watervapourandothergases.
它们最终产生了二氧化碳、氮、水蒸气和其他气体。
【拓展】
intime1.及时,适时2.迟早,最后
ontime准时,按时
attimes有时
atatime每次
innotime立刻;马上
atthesametime同时
atonetime一度;从前
atnotime绝不(置于句首时,句子常用倒装)
【例句】
1)Fortunatelyasoldiercametorescueintimetosavethedrowningboy.
2)Youwillsucceedintimeaslongasyoudon'tgiveup.
3)Atnotimeshouldwegiveintodifficulties.
4)Doonethingatatimeanddoitwell.
5)Hebehavesveryoddlyattimes.Idon'tthinkhe'squietallthere.
3.WaterhadalsoappearedonotherplanetslikeMarsbutunliketheearth,ithaddisappearedlater.水也出现在像火星那样的其他行星上,但和地球不同,其他行星上的水后来都消失了。
【词语链接】
disliken.反感,不喜爱vt.不喜欢,厌恶
likelyadj可能的unlikelyadj不可能的
belikelytodosth可能做某事
It'slikelythat...有可能……
【例句】
1)It’smorethanlikelythevoteswillhavetobecountedagain.
2)Herlatestnovelisquiteunlikeherearlierwork.
3)Ifyougoonlikethatyou'llgetyourselfdisliked.
4)Iwasveryinterestedinthelecture,unlikemanyofthestudents(不像其他学生).
4.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesan