人教新课标高中英语必修三Unit 4 Astronomy the science of the stars教案2.docx
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人教新课标高中英语必修三Unit 4 Astronomy the science of the stars教案2.docx
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人教新课标高中英语必修三Unit4Astronomythescienceofthestars教案2
Unit4Astronomy:
thescienceofthestars
一、课前基础自查
(一)分类记单词——省时高效
Ⅰ.阅读单词(知其意)
1.fundamentaladj. 基本的;基础的
2.chainn.链子;连锁;锁链
3.dissolvevt.&vi.溶解;解散
4.acidn.酸
5.multiplyvi.&vt.乘;增加
6.gravityn.万有引力;重力
7.extinctadj.灭绝的;绝种的
8.exhaustvt.用尽;耗尽;使精疲力尽
9.satelliten.卫星;人造卫星
10.spaceshipn.宇宙飞船
Ⅱ.重点单词(写其形)
1.atmospheren. 大气层;气氛
2.solaradj.太阳的;日光的
3.thusadv.因此;于是
4.gentleadj.温和的;文雅的
5.climaten.气候
6.crashvi.&vt.碰撞;坠落
7.pulln.&vt.拉(力);拖;牵引力
8.floatvi.&vt.(使)浮动;(使)漂浮
n.漂浮物
9.systemn.系统;体系;制度
10.theoryn.学说;理论
11.physicistn.物理学家
Ⅲ.拓展单词(通其变)
1.globen.球体;地球仪;地球→globaladj.全球性的;全世界的
2.violentadj.猛烈的;激烈的;强暴的→violencen.暴力→violentlyadv.暴力地;猛烈地
3.unlikeprep.与……不同;不像→likevt.喜欢prep.像n.爱好→dislikevt.不喜欢;讨厌n.不喜欢的事物→likelyadj.可能的
4.harmfuladj.有害的→harmn.&vt.伤害→harmlessadj.无害的
5.existvi.存在;生存→existencen.存在;生存
6.puzzlevt.&vi.(使)迷惑;(使)为难n.谜;难题→puzzledadj.感到困惑的→puzzlingadj.令人困惑的
7.religionn.宗教;宗教信仰→religiousadj.宗教上的;信奉宗教的;虔诚的
8.biologyn.生物学→biologistn.生物学家→biologicaladj.生物的
9.reactionn.反应;回应→reactv.反应
[语境活用]
1.Somebelieveintheexistence(exist)oflifeonMars,whileothersconsideritasamyth.
2.Lastnightwehadadiscussion,whichbecamemoreandmoreviolent.Finallywereachedanagreementthatwewillneveruseviolencewhateverhappens.(violent)
3.Playingcomputergameswillnotonlydoharmtoyourphysicalhealth,butitisalsoharmfultoyourmentalhealth.Sothereisnoharminadvisingyoutogiveitup.(harm)
4.Heoftensaysthathedoesn'tbelieveinanyreligionbutmeanwhileherespectsothers'religiousfreedom.(religion)
5.Sincemyyoungerbrotherisfondofbiology,_heisdeterminedtobecomeabiologistwhenhegrowsup.(biology).
6.Asisknowntous,everyonehashislikesanddislikes.Mylittlesisterisfondofpopmusic.Sheislikelytobecomeafamouspopsingerinthefuture.(like)
(二)练中记短语——记牢用活
写准记牢
语境活用(选用左栏短语填空)
1.in_time 及时;终于
2.lay_eggs下蛋
3.give_birth_to产生;分娩
4.in_one's_turn轮到某人
5.watch_out__for密切注意;当心;提防
6.cheer__up感到高兴;感到振奋
7.depend_on依靠;取决于
8.break_out突发;爆发
9.prevent_...from阻止;制止
10.block_out挡住(光线)
11.get_the_hang_of熟悉;掌握;理解
12.now_that既然
1.Oncehehasmadeuphismind,noonecanpreventhimfromcarryingouttheplan.
2.Atlastthefirefightersputoutthefireinthesupermarket,whichbroke_outattenthismorning.
3.Shemarriedat17andgave_birth_toherfirstbabyshortlyafter.
4.Mr.Brownintendedtocatchtheearlytrain,buthedidn'tgetupin_time.
5.Doremembertowatch_out_forcarswhilecrossingthestreet.
6.You'vemademesufferinthepast,sonowyou,in_your_turn,_sufferagain!
7.Onlybypractisingtimeandtimeagaincanyouget_the_hang_ofthegrammarrules.
8.Sheboughtaheavycurtaintoblock_outthelight.
(三)仿写明句式——以用为本
教材原句
句式解读
句式仿写
1.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.
这就产生了连锁反应,使生命的发展成为可能。
动词+it+adj./n.(宾补)+todo。
(2018·全国卷Ⅰ书面表达)我认为参加晚宴时带点小礼物是个好主意。
Ithinkit_a_good_idea_to_bringasmallgiftwhenweattendadinnerparty.
2.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.
但当我试着向前迈步的时候,我发觉我被送出去很远,步子的跨度竟是在地球上的两倍远,因而我摔倒了。
倍数表达法:
倍数+as...as...
杰茜卡付出的是以前三倍的时间和精力,所以我相信她这次能成功。
Jessicadevotedthree_times_as_much_time_and_energy_asshedidbefore,soIbelieveshewillsucceedthistime.
3.“Oh,dear,”Icried,“walkingdoesneedabitofpracticenowthatgravityhaschanged.”
“天哪,”我大声说,“既然重力改变了,看来走路也的确需要练一练了。
”
nowthat引导原因状语从句。
既然你精通英语,你就可以申请这份工作。
Now_that_you_have_a_good_command_of_English,_youcanapplyforthejob.
4.Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth'sgravityincreased.
我们惊奇地看着,随着地球的引力增加,宇宙飞船的外层燃烧起火。
形容词作伴随状语。
他在风雪中度过了七天,又冷又饿。
Hespentsevendaysinthewindandsnow,cold_and_hungry.
二、课堂重点深化
1.harmfuladj.有害的
[自主体验]
单句语法填空
①Asweallknow,abadeatinghabitisharmful(harm)toone'shealth.
②AsfarasI'mconcerned,thereisnoharminmakinganapologytohimfirst.
补全句子
③Thesedays,breakingtrafficrulesandlitteringarecommon,causing/doing_serious_harm_tolifeandtheenvironment.
这些天,违反交通规则和乱扔垃圾的现象很常见,对生活和环境造成了严重的破坏。
[系统归纳]
(1)beharmfultosb./sth. 对某人/某物有害
对某人/某物有害
做某事没有坏处
[重点强化]
易错对对碰(to/for)
④Asweallknow,thepollutedwaterandairareharmfultopeople'shealth.
⑤Anyway,thenewsseemstobegoodforyou.
佳句时时写(一句多译)
众所周知,过量饮酒对我们的健康有害。
⑥Whatisknowntousisthatdrinkingtoomuchis_harmful_to_our_health.(harmful)
⑦Itisknowntousthatdrinkingtoomuchdoes_harm_to_our_health.(harmn.)
2.existvi.存在;生存
[自主体验]
单句语法填空
①Eventhoughheisalittleboy,strangeideasalwaysexistinhismind.
②Scientistshavemanytheoriesabouthowtheuniversefirstcameintoexistence(exist).
③Theparkingplaceforbikeswasanexisting(exist)problemforalongtimeinourschool.
[系统归纳]
(1)existin 存在于……之中
existon靠……为生
Thereexists...某地有……;存在……
(2)existencen.存在;生存
comeintoexistence产生;成立;开始存在
(3)existingadj.现存的;现行的
[重点强化]
佳句时时写
④众所周知,老人和年轻人之间存在代沟。
Asisknowntous,there_exists_a_generation_gapbetweentheyoungandtheold.
3.puzzlevt.(使)迷惑;(使)为难;(使)窘困n.(游戏的)猜谜;难题;谜
[自主体验]
单句语法填空
①Thepolicearestillpuzzlingabout/overhowtheaccidentcouldhavehappened.
②Shelostheartsinceshefailedtheexam,becauseherfuturewaspuzzling(puzzle).
③Hearingthemanager'sexplanation,hehadapuzzled(puzzle)expressiononhisface.
[系统归纳]
(1)puzzleabout/over 冥思苦想;苦苦思索
(2)apuzzletosb.一件让某人感到困惑的事情
(3)puzzlingadj.令人迷惑的
puzzledadj.迷惑不解的;困惑的
bepuzzledabout对……迷惑不解
[重点强化]
易错对对碰
④Therewasapuzzledlookonherfacebecauseapuzzlingproblempuzzledher.(puzzle)
佳句时时写
⑤事实上,困扰你的事情对于中国的许多父母来说也是一个难题。
What_puzzles_you_is_actually_a_puzzle_tomanyparentsinChina.
1.intime及时;终于;迟早
[自主体验]
单句语法填空
①Asaproverbgoes,“Wherethere'sawill,there'saway.”Oureffortswillpayoffintime.
②WereachedonthetopofMountTai,justintimeto_enjoy(enjoy)therisingsun.
③Luckily,Iadaptedtothenewsurroundingsandeverythingreturnedtonormalinnotime.
[系统归纳]
(1)intimefor... 刚好赶上……
intimetodosth.及时做某事
(2)innotime立刻;马上
atnotime决不(放在句首时,句子用部分倒装)
atatime每次;一次
atonetime曾经;一度
atthesametime同时
attimes有时;偶尔
fromtimetotime有时;偶尔
(3)takeone'stime别着急;慢慢来
[重点强化]
易错对对碰(atatime/atonetime)
④You'dbetterdoonethingat_a_timesothatyoucanconcentrateonit.
⑤At_one_time,_peoplethoughtthesuntravelledaroundtheearth.
佳句时时写
⑥Inmyview,youshouldatnotimeloseheartwheneveryouareintrouble.(用倒装句升级句子)
→Inmyview,at_no_time_should_you_lose_heartwheneveryouareintrouble.
2.inone'sturn轮到某人;接着
[自主体验]
单句语法填空
①Nowthatwehavefinishedthedesign,itisintheirturntoconstruct.
②Itturnedoutthattheyoungmanwasnoneotherthantheoldman'sson.
[系统归纳]
inturn 依次;轮流;反之;相应地
byturns轮流;交替地
taketurnstodosth.轮流做某事
Itisone'sturntodosth.轮到某人做某事
Itturns/turnedoutthat...结果……
[重点强化]
易错对对碰(byturns/taketurns)
③Ithinkwe'dbettertake_turnstodrivethekidstoschoolthisweek.
④Ithinkwe'ddrivethekidstoschoolby_turnsthisweek.
佳句时时写
⑤人们使用自己的小汽车避免公共交通延误,反过来,这将造成更多的问题。
Peopletrytoavoidpublictransportationdelaysbyusingtheirowncars,whichin_turn_creates_more_problems.
3.cheerup(使)高兴;(使)振奋;感到高兴;感到振奋
[自主体验]
单句语法填空
①Uponarrivingattheclassroom,theauthorwascheeredupbyawarmwelcome.
②Cathydidn'texpectanyawardbutwasstilltheretocheeronherfriendsandpraisetheiraccomplishments.
[系统归纳]
(1)cheersb.up 使某人振作起来
cheersb.on(比赛中)以喝彩声鼓励;为某人加油
(2)Cheers!
[口语](用于祝酒)干杯!
[重点强化]
佳句时时写(词汇升级)
③WhenI'mfeelingdepressed,mymothertellsmefunnystoriestomakemehappy.
→WhenI'mfeelingdepressed,mymothertellsmefunnystoriestocheer_me_up.
4.makeit+adj./n.+forsb.todo
[教材原句] Thisproducedachainreaction,whichmade_it_possible_for_life_to_develop.
[自主体验]
①Shemadeitcleartomethatshewishedtomakeanewlifeforherself.
②Peopleinthewestmakeitaruleto_buy(buy)Christmaspresentsfortheirrelativesandfriends.
③Heissostubborn,whichmakesitnousepersuading(persuade)himtochangehismind.
[归纳点拨]
用法规则
“make+it”常用句型:
(1)make+it+adj./n.+that从句
(2)make+it+adj./n.+todo不定式
(3)make+it+nogood/nouse/novalue...+doingsth.
注意事项
常用于这种句型的动词还有:
think,consider,find,feel等。
[佳句背诵]
①(增分要点句)IhaveagoodcommandofEnglish,whichmakesiteasierformetofindagoodjob.
②(增分要点句)YouhavemuchexperienceinvoluntaryworksothatIfinditagoodideaforyoutoapplyfortheposition.
5.倍数表达法
[教材原句] ButwhenItriedtostepforward,IfoundIwascarriedtwice_as_far_asontheearthandfellover.
[自主体验]
①Therearefive_times_as_many_booksinourlibraryasinyours.
我们图书馆里的书是你们图书馆里的书的五倍。
②据我所知,这个城市是那个城市的三倍大。
(一句多译)
→AsfarasIknow,thecityisthreetimesas_large_asthatone.
→AsfarasIknow,thecityisthreetimeslarger_thanthatone.
→AsfarasIknow,thecityisthreetimesthe_size_ofthatone.
[归纳点拨]
用法规则
常见的倍数表达法:
(1)倍数+as+many/much+n.+as
(2)倍数+as+形容词/副词原级+as
(3)倍数+形容词/副词比较级+than
(4)倍数+thesize/length/height/depth/width/amount+of
注意事项
(1)表示“两倍”时用twice或double,三倍或三倍以上用“基数词+times”表达。
(2)此句型中倍数也可以用分数、百分数,half等其他程度状语来表达。
[佳句背诵]
①(精彩开头句)Myschoolhasexpandedintoabigone,whichisthreetimesasbigasthepreviousone.
②(增分要点句)Theareareceivedthreetimestheamountofrainitgotlastyear.
本单元语篇话题与新课程主题语境“人与自然”中的“太空探索”子话题相对应
一、话题语素积累多一点
子话题——太空探索
(一)浅易词汇温一温
①spaceship ②fresh ③explore ④advanced ⑤rocket
⑥prevent⑦satellite⑧earth⑨sun⑩moon
⑪Mars⑫planet⑬exist
(二)生疏词汇记一记
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