学年新教材高中英语Unit6EarthfirstSectionⅠStartingoutUnderstandingideas教学案外研版必修第.docx
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学年新教材高中英语Unit6EarthfirstSectionⅠStartingoutUnderstandingideas教学案外研版必修第.docx
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学年新教材高中英语Unit6EarthfirstSectionⅠStartingoutUnderstandingideas教学案外研版必修第
Unit6Earthfirst
科学家警告:
北极海冰的加速融化会造成不可控制的全球气候变化。
MeltingArcticSeaIceCouldStart
UncontrollableGlobalClimateChange
TherapidmeltingoftheArcticseaicecouldbeabouttobringaboutcatastrophic(灾难性的)eventsacrosstheworld,scientistshavewarned.
TheeffectsofthemeltingicecouldbefeltasfarawayastheIndianOceanasthewarmweathersetsoff19globaltippingpoints(临界点),accordingtothenewArcticResilienceReport.Thosetippingpointshappenwhenanaturalsystemquicklychanges,leadingtogreateffectsonnearbyecosystemsthatmightneverbereversed(彻底转变).
IntheArctic,theyincludegrowingvegetationthatstopssnowandiceandsoabsorbsmoreheat,andthereleaseofmethane(甲烷)fromtheArcticasitwarms.Thereportincludesarangeofdifferentdisastrouseventsthatarelikelytobeproducedbythewarmingpoles.
ThefindingscomejustasclimatescientistshavewarnedthatseaiceintheArcticappearstobemelting
farmorequicklythanexpectedastheresultofhightemperatures.
AiroverthePolaricecaphasbeen9-12degreesCelsiusaboveaverageoverthelastfourweeks,accordingtotheDanishMeteorologicalInstitute(DMI).Throughlastweek,temperaturesreachedmeltingpoint,puttingthemfarabovetheexpectedtemperatureandservingasadangeroussignalfortheseaicethere.
Thetemperatureis“byfarthehighestrecorded”,DMIresearcherMartinStendeltoldtheAFP.“Whatweareobservingisveryunusual.”
Atthistimeofyear,theArcticOceanwouldbeexpectedtostartfreezingupintoseaiceagain.Butitisn’thappening.
“Notonlywastheicenotgrowingasitwouldnormally,therewasfurthermeltingduetowarmaircomingin,”hetoldthenewsagency.
Thateffectisbeingcausedbyanumberoffactors—notonlyclimatechange,butalsotemporaryweatherphenomenalikeElNiño.Butthosetemporary(短暂的)thingsarebeingstrengthenedbyclimatechange,whichisthefinaldriverofthemeltingseaice,scientistssaid.
SectionⅠ Startingout&Understandingideas
重点单词
阅读词汇
(在不认识的单词前划√)
□sharkn. □divev.
写作词汇
1.targetv.把……作为目标
2.attitude__n.(尤指通过行为表现出的对某事的一般)看法,态度
拓展词汇
3.scareadj.使(某人)惊恐,吓唬→scaredadj.对……感到惊慌的;吓坏了的
4.fortunatelyadv.幸运地→fortunateadj.幸运的;吉祥→fortunen.幸运;运气
5.extinctionn.灭绝,绝种→extinctadj.绝种的;消亡了的
重点短语
1.in__fear恐惧,担心
2.tell__the__story__of讲述……的故事
3.be__scared/frightened__of/afraid__of
害怕……
4.due__to由于,因为
5.cut__off切断;阻断;隔绝
6.have__an__effect__on/upon对……有影响
7.be__based__on以……为基础/依据
8.come__across偶遇
9.see...as...把……看作……
10.from...on从……时起
11.by__mistake错误地;疏忽地
12.protect...from...保护……免受……
13.raise__awareness__of...提高对……的认识
重点句型
1.形容词(短语)作状语:
Somepeoplestoppedswimminginthesea,afraid__of__the__horrible__creature__from__the__film(由于害怕电影里可怕的生物).
2.was/weredoing...when...:
In1980,Benchleywas__diving__when(正在潜水就在这时)hecameacrossanawfulsight.
3.部分否定:
Fortunately,not__everyone(并非每个人)whowatchedthefilmJawsbecameafraidofsharks—somebecameinterestedinunderstandingthem.
Readthetextandfillintheblanks.
↓Peoplehadalongheldideathatthegreatwhitesharkis1.____________.
↓Peoplebecamemore2.____________ofsharks.
Thenumberoflargesharksfellquicklyduetofearofsharksand3.____________.
↓PeterBenchleyadmittedthathisbookwas4.____________aboutsharks’behaviour.
↓Morepeoplewantto5.____________thesharksfromextinction.
答案:
1.dangerous 2.scared 3.finning 4.wrong 5.protect
Readthetextcarefullyandchoosethebestansweraccordingtothetext.
1.Whatisthewriter’spurposeofwritingthepassage?
A.TorecommendthefilmJawsandthebooktopeople.
B.TocriticizePeterBenchley’smisleadingdescriptionofsharks.
C.Toraisepeople’sawarenessofsharkprotection.
D.Toinformpeoplethatsharksaredangerous.
2.Accordingtothepassage,whichoneisWRONGaboutthefilmJaws?
A.Awomandiedasaresultofashark’sattack.
B.Itwaspopularwithhugeaudiences.
C.Itchangedpeople’slongheldideaofsharkasadangerousanimal.
D.Itwonagreatreputationinthefieldoffilm.
3.Whydidthenumberoflargesharksfallquickly?
A.Becauseoftheclimatechange.
B.Becauseofpeople’skillingandfinning.
C.Becauseoflackingofenoughfood.
D.Becauseofthepollutionoftheocean.
4.Nowadays,whatispeople’sattitudetowardsprotectingsharks?
A.Neutral.
B.Indifferent.
C.Disapproval.
D.Favorable.
答案:
1-4.CCBD
scare v.使(某人)惊恐;吓唬 n.恐慌;恐惧
(教材P62)Peoplehavealwaysbeenscaredofsharks,butJawsmadethingsworse.
人们一直都害怕鲨鱼,但《大白鲨》使情况变得更糟。
(1)scare...away/off 把……吓跑
(2)scaringadj.令人害怕的;吓人的
scaredadj.对……感到惊慌的;吓坏了的
bescaredof害怕……
bescaredtodo...害怕做……;不敢做……
①HissuddenappearancegavemeascarewhenIwasreadinganinterestingbook.
我正在读一本有趣的书,他的突然出现吓了我一跳。
②Lastnightthesuddenthunderscared(scare)thechildren.
昨天晚上,突然的雷声吓着了那些孩子。
③Theymanagedtoscarethebearaway/offwithatorch.
他们设法用火把把熊吓跑了。
④Havingmademistakes,heisscaredoffacinghisstrictteacher.
他犯了错,不敢去面对严厉的老师。
⑤Seeingmanycarsgoingupanddownthestreet,theboyswerescaredto__cross(cross)thestreet.
看到马路上来来往往的车辆,那些男孩子不敢过马路。
dueto 由于;由……造成;应支付;归功于
(教材P62)Thiswasnotonlyduetofearofsharks,butalsofinning.
这不仅是因为害怕鲨鱼,而且还因为鲨鱼的鳍。
dueadj. 应得的;应付的;预定的
beduetosb.应付给某人
beduetosb./sth.归因于某人/某物
beduetodosth.预定/预期做某事
①Theflightwasputoffduetotheheavyfog.
这架班机因大雾停航。
②Anymoneythatisduetoyouwillbepaidbeforetheendofthemonth.
欠你的钱将在月底之前全部支付给你。
③Thebuswasdueto__arrive(arrive)at5p.m.,butitarrivedonehourlateduetobeing__held(hold)upbytheheavyfog.
公共汽车预计下午五点钟到达,但由于大雾的阻碍它晚了一个小时。
[一词多义]——写出下列句中dueto的含义
(1)Severaltrafficaccidentshappenedonthehighwayduetotheheavyfoginthemorning.因为
(2)Themoneyisduetome,butIhaven’tgotityet.应支付
(3)Theteam’ssuccesswaslargelyduetoherefforts.归功于
(1)当dueto意为“由于;因……造成;应给予”时,其中的to是介词,并且在句中常常作表语或状语;当dueto意为“即将/预期做……”时,其中的to是不定式符号,后接动词原形。
(2)表示“因为;由于”的介词短语还有becauseof,onaccountof,asaresultof,owingto,thanksto等。
cutoff 切断;阻断;隔绝
(教材P62)Finningisatypeoffishingwheresharksarecaughtandtheirfinscutoff.
切鱼鳍是一种捕获的方式,在这个过程中鲨鱼被捕获,鱼鳍被切除。
cutdown 砍倒;缩减;降价
cutup切碎
cutin插嘴;打断
①Bothboysandgirlsarerequiredtocutofflonghairaccordingtoschoolregulations.
根据学校规定,无论男生还是女生都得剪掉长发。
②(山东卷)Finally,hereachedalonelyislandwhichwascompletelycutofffromtheoutsideworld.
最终,他到达一个完全与外界隔绝的孤岛。
③(湖北卷)Withmoreandmoreforestscutdown,someanimalsarefacingthedangerofdyingout.
由于越来越多的森林被砍伐,一些动物正面临着灭绝的危险。
[巧学活用]——用cut的相关短语填空
(1)Aftermuchbargaining(讨价还价),theshopowneragreedtocut__downthepriceby20%.
(2)Thewatersupplyofthisdistrictwascut__offbecausethewaterpipewasbroken.
(3)Becausetheboyistooyoung,hismotherhastocut__upallthefoodtofeedhim.
fortunately adv.幸运地
(教材P63)Fortunately,noteveryonewhowatchedthefilmJawsbecameafraidofsharks—somebecameinterestedinunderstandingthem.
幸运的是,并不是所有看过电影《大白鲨》的人都害怕鲨鱼——有些人开始对了解鲨鱼感兴趣。
(1)fortunateadj. 幸运的,吉祥的
be/feelfortunate(in)doing/todo...做……很幸运
Itisfortunate(forsb.)todo/that...(对某人来说)做
……是幸运的。
(2)fortunen.运气;命运
(3)unfortunatelyadv.不幸地
①Fortunately,therainstoppedbeforewestartedtohaveapicnicoutside.
幸亏在我们动身去野餐前雨停了。
②Ifeelfortunatehaving/to__have(have)suchafriend.
我有这样的朋友,真是幸运。
③Manyofusarefortunateto__be(be)herewithfamily.
我们中很多人都很幸运,能够在这里和家人们在一起。
[巧学活用]——单句语法填空
(1)Itwasfortunatethathehadleftthehousebeforethefirebrokeout.
(2)Iwaslate,butfortunately(fortunate)theclasshadn’tstarted.
(3)Unfortunately(fortunate),IhurtmykneewhenIfelldownontheice.
attitude n.(尤指通过行为表现出的对某事的一般)看法,态度
attitudeto/towards... 对……的态度/看法
have/takea(n)...attitudeto/towards...
对……持/采取……的态度
①Keepapositiveattitudeandgoodthingswillhappen.
保持积极的态度,好事就会发生。
②He’saneasygoing,friendlyyoungmanwithacasualsortofattitudetowards/tomoney.
他是个随和、友善的年轻人,不太在意金钱。
[巧学活用]——完成句子
他对家庭作业的态度不端正。
Hehas/take__a__bad__attitude__to/towardshishomework.
形容词(短语)作状语
(教材P62)Somepeoplestoppedswimminginthesea,afraidofthehorriblecreaturefromthefilm.
有些人因为害怕电影里可怕的生物而不再在海里游泳。
句中“afraidofthehorriblecreaturefromthefilm”是形容词短语作状语,相当于becausesomepeoplewereafraidofthehorriblecreaturefromthefilm。
形容词(短语)作状语可以表示方式、原因或伴随状况等,可位于句首、句末或句中,常用逗号与句子其他成分隔开。
①Coldandhungry,hestoppedworkingandwenthome.
因为又冷又饿,他停止工作回家了。
②Iwasbackathomeatalmostmidnight,thirstyandtired(tire).
快到半夜时我才回到家,又渴又累。
③Obviously(obvious),agoodhabitcanhelpustospeeduptoreachourdestinations.
很显然,好习惯有助于加速实现我们的目标。
形容词作状语与副词作状语的区别:
形容词作状语表示主语的状态;副词在句中作状语通常修饰动词或修饰整个句子。
[巧学活用]——句式升级
(普通表达)Shesuddenlyappearedandseemedhappyandsatisfied.
(高级表达)Happy__and__satisfied,shesuddenlyappeared.(形容词短语作状语)
was/weredoing...when...
(教材P63)In1980,Benchleywasdivingwhenhecameacrossanawfulsight.
1980年,本奇利正在潜水,就在这时他突然看到一个可怕的景象。
句中的when是并列连词,意为“就在这/那时”,相当于andthen或andatthesametime。
when作并列连词时常用于以下句型中:
bedoing...when... 正在做……这时……
beabouttodo...when...=beonthepointofdoing...when...
正要做……这时……
hadjustdone...when...刚做了……这时……
①IwasthinkingofthiswhenIheardmynamecalled.
我正想着这件事,突然听到有人叫我的名字。
②Wewere__doing(do)ourhomeworkwhenthelightwentout.
我们正在做家庭作业,灯突然熄了。
③Wewereaboutto__set(set)outwhenitbegantorain.
=Wewereonthepointofsetting(set)outwhenitbegantorain.
我们正要出发,这时天开始下雨。
④Ihadjustgonetobedafteraveryharddaywhenthephonerang.
在劳累了一天之后,我刚上床睡觉,这时电话响了。
when作从属连词可引导时间状语从句,意为“当……的时候”;还可引导让步状语从句,意为“
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