高中英语外研版 (2019)选择性必修 第一册Unit 5 Revealing nature备课ppt课件

这是一份高中英语外研版 (2019)选择性必修 第一册Unit 5 Revealing nature备课ppt课件，共60页。PPT课件主要包含了Ⅲ情境佳句1，图解难句，板块二　课文对译等内容，欢迎下载使用。
Ⅰ.课标单词1.单词拼写①　　　　　    /ˈsɑːmp(ə)l/n.样本②　　　　　    /səˈspekt/v.猜想,怀疑,觉得③　　　　　    /ˌiːvəˈluːʃ(ə)n/n.进化(论)
2.根据英文释义选词填空 finch　disgrace　ancestr　beak　seed①　　　　    :the hard pinted r curved uter part f a bird's muth②　　　　    :a small bird with a shrt strng beak③　　　　    :the lss f ther peple's respect and apprval because f the bad way sb. has behaved④　　　　    :the small hard part prduced by a plant, frm which a new plant can grw ⑤　　　　    :a persn in yur family wh lived a lng time ag
3.词汇拓展①　　　　    /ˈdɪstənt/adj.遥远的→distance/ˈdɪstəns/n.距离②　　　　    /dʒiˈɒlədʒɪst/n.地质学家→gelgy/dʒiˈɒlədʒi/n.地 质学→gelgical/ˌdʒiːəˈlɒdʒɪkl/adj.地质(学)的 ③　　　　    /ɪˈvɒlv/v.进化→evlutin/ˌiːvəˈluːʃ(ə)n/n.演变;进 化(论)④　　　　    /ˈdʒenəreɪt/v. 产生;创造→generatin/ˌdʒenəˈreɪʃn/ n.(能源的)产生;一代人
Ⅱ.情境词块1.answer the call　　　　　　　　　　    2.first chice　　　　　　　　　　    3.be a disgrace　　　　　　　　　　    4.lead t　　　　　　　　　　    5.f all time　　　　　　　　　　    6.in questin　　　　　　　　　　    7.be crwded with　　　　　　　　　　    
8.cme t exist　　　　　　　　　　    9.at the same time　　　　　　　　　　    10.adapt t　　　　　　　　　　    11.inspire sb. t d sth.　　　　　　　　　　    12.a variety f　　　　　　　　　　    13.accrding t　　　　　　　　　　    14.be regarded as　　　　　　　　　　    15.begin with　　　　　　　　　　    
　　　　 　     
这个年轻人从医学院肄业。
　　　　 　     　　　 　     
而且,在他刚收到的父亲的来信中,父亲预言他将会成为“自己和全家人的耻辱”。 
　　　　 　     　　　 　     　　　 　     
我们提到的这个年轻人就是地质学家和博物学家查尔斯·达尔文,他对岩石和动植物有着浓厚的兴趣。 
但是达尔文的科学研究很有说服力,以至于越来越多的人开始接受他的理论。
Ⅰ.文本理解Step 1　Reading fr the main idea.What is the main idea f the text?A.Intrduce hw On the Origin f Species was why Charles Darwin travelled n the wh was Charles Darwin with readers. D.Intrduce hw a thery f evlutin was discvered.答案D
Step 2　Reading fr the structure.　　Fill in the fllwing blanks with prper wrds.
rcks, plants and animals
cme t exist
new species
On the Origin f Species
Step 3　Reading fr the details.　　Chse the best answer accrding t the did Charles Darwin begin his jurney f discvery?A.In 1831.　　B.In 1836.　　D.In 1859.答案A2.What interested Darwin the mst n the Galápags Islands? A.Fishes.　　B.Birds.　　C.Frests.　　D.Islands. 答案B
3.Accrding t Darwin, hw did new species f plants and animals cme t exist? A.They came frm the same appeared n Earth evlved frm their ften changed themselves.答案C
4.What caused the thery f evlutin t appear? A.Darwin's jurney n the writing f On the Origin f remarks frm Darwin's father. D.The captain f the ship, the Beagle.答案A
Ⅱ.难句突破1.[图解难句] 
[自我分析]这是一个　　　　    句,其中wh引导　　　　    从句,主句部分为　　　　     结构,the Beagle是the ship的　　　语,过去分词短语yet little knwn是后置定语,修饰cuntries。[尝试翻译]　　　　　　　　　　　　　　　　　　　　　　　　　      　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　     
贝格尔号的船长想要招募这样一名船员,这名船员将能“借此机会访问遥远而鲜为人知的国
 [自我分析]这是一个　　　　    句,第一分句中When引导　　　　    从句;第 二分句为强调句,强调　　　　    语。[尝试翻译]　　　　　　　　　　　　　　 　　　　　　　　　　　    　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　    
1835年,当贝格尔号抵达加拉帕戈斯群岛时,达尔文发现了各种各样的新物种,但最令他感兴
Ⅲ.文本复述Step 1　Questin Answering　　根据课文内容回答下列问题。1.Hw and when did Charles Darwin g abard n the Beagle? Charles Darwin answered the call f the captain f the ship, the Beagle, and in 1831 he left England n the ship. 
2.What did the jurney give him?The jurney gave him the chance t study varius living things in their natural envir-nments. 3.On the Galápags Islands in 1835, what interested him the mst?When the Beagle reached the Galápags Islands, the birds interested him the  studying, what was the answer t hw new species f plants and animals came t exist? They evlved frm earlier ancestrs.
5.What was put frward by Darwin? He put frward a thery f  was his bk On the Origin f Species published?It was nt published until 1859 and immediately caused a strm.
Step 2　Text Retelling将以上句子连成一篇语言流畅、用词准确、逻辑严密的60词左右的短文。 Charles Darwin answered the call f the captain f the ship, the Beagle, and in 1831 he left England n the ship. The jurney gave him the chance t study varius living things in their natural envirnments. When the Beagle reached the Galápags Islands, the birds interested him the mst. By studying, he gt the answer t hw new species f plants and animals came t exist： they evlved frm earlier ancestrs. Later, he put frward a thery f evlutin. His bk On the Origin f Species was nt published until 1859 and immediatelycaused a strm.
板块一　语言知识1.The captain f the ship, the Beagle, wanted smene wh wuld “prfit by the pprtunity f visiting distant cuntries yet little knwn”.贝格尔号的船长想要 招募这样一名船员,这名船员将能“借此机会访问遥远而鲜为人知的国家并 从中受益”。 (教材P50)Paraphrase: The captain f the ship, the Beagle, needed smene wh wuld bene- fit frm the chance t visit cuntries that were far away and unknwn.
语言点1　distant adj.遥远的;远亲的;疏远的情境探究①It was difficult t get t knw her because she always kept everyne at a dis- tance.很难去了解她,因为她总是与每个人保持距离。②She's always very distant and cld, s I have t keep her at a distance.她总是很冷淡和疏远,所以我不得不与她保持距离。③The picture where a girl is staring at the muntain in the distance lks mre beautiful at a distance.那幅一个女孩凝望远山的画,从远处看会更漂亮。
归纳拓展distance n.距离in the distance在远处at a distance隔一段距离;从远处at a distance f...在……远的地方keep sb. at a distance与某人保持距离keep ne's distance frm...与……保持距离,疏远……
学以致用(1)单句填空①He wanted t get away frm everything, s he mved t a 　　　　     (dis- tance) land. ②Travelers shuld nt feed the wild animals 　　　　     a clse distance be- cause they may attack peple.③The railway statin is at 　　　　     distance f tw miles frm ur schl.
(2)单句写作④往更远处看,我可以欣赏白雪皑皑的群山。Farther　　　　　　　　    , I culd enjy the view f snwy muntains.
in the distance
2.The persn wh answered the call was nt the captain's first chice.来应聘的人 并不是船长心中的理想人选。(教材P50)语言点2　answer the call响应号召情境探究①I can't answer the telephne. I am having a bath. 我不能接电话,我正在洗澡。
②Yu will have t answer fr yur behaviur ne day.总有一天你要为你的行为承担责任。③I wish I knew the answer t yur questin.但愿我知道你的问题的答案。④I dn't quite knw what t say in answer t yur questin.我不太清楚如何回答你的问题。
归纳拓展(1)answer v.答复;回答;应答;适合;符合answer t sb.(fr sth.)向某人(为某事)负责(2)answer n.回答;答案;回应;足以媲美的人 the answer t...……的答案(t为介词) in answer t回答,应答,响应
温馨提示answer fr后可接名词或代词,一般不接 that 从句,若要接这类从句,通常应先接it作形式宾语。
学以致用(1)单句填空①The answer 　　　　     this questin is nw under explratin.②Knwing her well, I can certainly answer 　　　　     her hnesty.③The dctr came at nce 　　　　     answer t ur telephne call.(2)单句写作④我不能保证他是诚实的。I can't answer fr 　　　　　　　　　　    .
3.Despite all this, his adventures n this ship wuld lead t ne f the mst impr- tant scientific discveries f all time.尽管如此,他的这次乘船探险之旅将带来有 史以来最重要的一项科学发现。(教材P50)语言点3　f all time 有史以来 情境探究①At ne time I used t g skiing every winter.曾经有一段时间,我每年冬天都去滑雪。
②She ran up the stairs tw at a time.她一步两阶地跑上楼梯。③He finished ff tw bwls f ndles in n time.他很快就吃完了两碗面条。④The letter was in my pcket all the time.这封信一直在我的口袋里。⑤At n time culd I have said such a thing.我决不会讲出这种话。
归纳拓展all the time一直　　　　　at a time依次;每次at all times总是　　 at ne time曾经,一度n time准时　　 in n time立刻in time及时at n time永不;在任何时候都不(该短语位于句首时,句子要用部分倒装)frm time t time有时,间或,偶尔
学以致用(1)单句填空①We shall be landing in Paris in sixteen minutes, exactly 　　　　     time.②The wrst trnad 　　　　     all time ccurred in 1925, affecting three US states: Missuri, Illinis and Indiana.③Keep yur head up, and lk arund yu frm time 　　　　     time.
(2)一句多译在任何时候你都不应该放弃读书。④　　　　　　　　　   give up studying. ⑤Yu 　　　　　　　　     give up studying 　　　　　　    .
At n time shuld yu
at any time
4.The yung man in questin, Charles Darwin, was a gelgist and naturalist, fas- cinated by rcks, plants and animals.我们提到的这个年轻人就是地质学家和博 物学家查尔斯·达尔文,他对岩石和动植物有着浓厚的兴趣。(教材P50)语言点4　in questin讨论中的;有疑问;不确定情境探究①The lady in questin is nt in the ffice nw.    谈到的那位女士现在没在办公室。
②Children's lives are in danger every time they crss this rad.孩子们每次过这条马路都面临着生命危险。③We must try t live in peace and harmny with urselves and thse arund us.我们必须努力和我们自己及周围的人和睦相处。④We lked at each ther in silence. 我们相顾无言。⑤Even thugh yu are in pwer, yu can't just d whatever yu want.即使你当权, 你也不能为所欲为。
归纳拓展“in+名词”短语,in 表示“(目前状态、形势)处于……中”。in danger处于危险中　　　　in debt负债in dubt怀疑　　 in peace和平地;平静地in silence沉默地　　 in pwer当权in surprise惊讶地　　 in truble处于麻烦中
学以致用(1)单句填空①The dam was 　　　　     danger because f the rising fld.②The existence f glbal warming is 　　　　     questin.(2)单句写作③我总是很怀疑他对这个问题的解释。I'm rather 　　　　     abut his explanatin fr this questin.
5.After Darwin had spent sme time in Suth America, his rm n the ship was crwded with samples f the plants and animals he had cllected. 在南美洲度过 一段时间后,他的船舱里堆满了收集到的动植物样本。(教材P51)语言点5　be crwded with 充满……;挤满……情境探究①The band played and the crwd cheered.乐队表演,观众欢呼。
②Thusands f peple have crwded int the small twn.成千上万的人涌入了这个小镇。③I easily sptted him in the crwd because he was very tall.因为他个子非常高,所以我在人群中很容易就认出了他。
归纳拓展(1)be crwded with=be filled with=be full f挤满……(2)crwd n.人群    a crwd f一群crwds f成群的(3)crwd v.聚集,拥挤crwd int涌入
学以致用(1)单句填空①Htels are fully bked and the narrw streets are crwded 　　　　     wn- derful custmers.②He lst his wallet yesterday when he was in a 　　　　     (crwd) bus.(2)单句写作③这家餐馆在用餐时间总是客满。The restaurant 　　　　　　　　　　     custmers at meal times.
is always crwded with
6.As he studied these, he asked himself the questin: hw did different species cme t exist?当他研究这些样本时,他产生了疑问:这些不同的物种是如何产 生的?(教材P51)语言点6　cme t exist 开始存在情境探究①Nthing exists n the mn as there is n water and n air.月球上没有东西生存,因为没有水和空气。
②N ne knws when such a custm first came int existence.没有人知道这种风俗是什么时候开始有的。③D yu believe in the existence f ghsts? Perhaps they nly exist in the minds f sme peple.你相信鬼魂的存在吗?或许它们只存在于一些人的想象中。④Steven wrte him a nte asking him t cme t his apartment. 斯蒂芬给他写了张便条,请他去自己的公寓。
归纳拓展(1)exist vi.存在;生存;生活exist in存在于……exist n依靠……生存,依靠……生活(2)existence n.存在;生存cme int existence开始存在;产生;成立in existence现存的;现有的(3)cme t 苏醒;到达;共计;被想起;谈到
误区警示exist是不及物动词,不用于被动语态,通常不用进行时。
学以致用(1)赏句猜义①I never expected thse few items t cme t s much. 　　　　    ②When he came t and raised his head he saw Barney. 　　　　    ③I'm beynd my depth when it cmes t natural sciences. 　　　　    (2)单句填空④They can't exist 　　　　     the mney he's earned.⑤This huse has been in 　　　　     (exist) fr many years.
7.Maybe animals evlved as they adapted t their changing envirnments?也许动 物在适应不断变化的环境时进化了?(教材P51)语言点7　adapt t 适应情境探究①It was the culture, rather than the language, that made it hard fr him t adapt t the new envirnment abrad.是文化而不是语言使得他很难适应国外的新环境。
②The authr is ging t adapt his nvel fr TV series.这位作者打算把他的小说改编成电视剧。③This TV play was adapted frm a histrical nvel.这部电视剧改编自一部历史小说。④The adaptatin f the play fr a radi manuscript was easy.把剧本改编成广播稿很容易。
归纳拓展(1)adapt v.(使)适应adapt (neself) t使(某人自己)适应……(2)adapt v.改编adapt frm根据……改编把……改编(改装)为……(3)adaptatin n.适应;改编;改编的作品(4)adaptable adj.可适应的;有适应能力的
易混辨析adpt采用,采纳;收养;正式通过adapt改写;改编;适应;适合词汇助记The yung cuple had n children f their wn and adpted a by after the earth- quake. After a few mnths, the by came t adapt himself t the life in the new hme.这对年轻夫妻没有他们自己的孩子,在地震后收养了一个男孩。几个月 后,这个男孩适应了新家庭的生活。
学以致用(1)单句填空①Three f her nvels have been adapted 　　　　     televisin.②This new film is said t be adapted 　　　　     a nvel by Jane Austen.③The wrld will be different, and we will have t be prepared t adapt 　　　     the change.
(2)单句写作④随着时间的推移,我逐渐适应了学校的生活。As time went by, I gradually 　　　　　　　　　　　　　　    .
adapted myself t the schl life
8.When the Beagle reached the Galápags Islands in 1835, Darwin saw a variety f new species, but it was the birds that interested him the mst.1835年,当贝格尔 号抵达加拉帕戈斯群岛时,达尔文发现了各种各样的新物种,但最令他感兴趣 的是鸟类。(教材P51)语言点8　a variety f 各种各样的 情境探究①Sme experts believe that the tw language varieties are mving clser and clser.一些专家认为这两种语言变体正越来越接近。
②A wide variety f flwers were n shw in the street. 街上展出了各种各样的花。③I was impressed by the variety f dishes n ffer.供应的菜肴之丰盛让我印象深刻。④Opinins n this matter vary frm persn t persn.对于这件事,人们意见不一。⑤The menu varies with the seasn.菜单随季节而变动。
归纳拓展(1)variety n.种类;变体,变种;变化,多样化the variety f...……的种类a (wide) variety f...各种各样的……(2)vary v.相异;改变vary in...在……方面不同vary 从……到……不等vary with...随……变化而变化
(3)varius adj.各种各样的误区警示“a variety f+名词”作主语,谓语动词与名词的数保持一致;“the variety f+ 名词”作主语,谓语动词用单数形式。
学以致用(1)单句填空①These cars vary 　　　　     size, price, clur and s n. ②We may have 　　　　     (vary) ways t deal with such a situatin.③The variety f apples 　　　　     (be) astnishing.
(2)单句写作④我们经常看到无意识的肢体语言的例子,但也有“习得的”肢体语言,这种 肢体语言在不同的文化中各不相同。We see examples f uncnscius bdy language very ften, yet there is als “learned” bdy language, which 　　　　　　　　　　  .
varies frm culture t culture
9.Darwin suspected that the finches had evlved frm a cmmn ancestr, which had arrived n the islands a lng time befre.达尔文猜想这些雀鸟都是由共同的 祖先进化而来的,这些雀鸟的祖先很久以前就来到了这片群岛。(教材P51)语言点9　suspect v.猜想,怀疑,觉得情境探究①I began t suspect (that) they were trying t get rid f me.我开始觉察出,他们正在试图摆脱掉我。
②Suspecting nthing, he walked right int the trap.他毫无觉察,径直走入陷阱。③Sme f the evidence they prduced was highly suspect.他们出示的证据中有些相当成问题。④I suspected him f stealing the jewelry frm the stre.    我怀疑他从这个商店偷了珠宝。⑤The yung man is mre intelligent than we suspected him t be.这个年轻人比 我们猜想的更聪明。
归纳拓展(1)suspect+n./prn. 怀疑……suspect+that/wh-从句　猜想/怀疑/觉得……suspect sb./sth. t be怀疑某人/某事……suspect sb. f...怀疑(某人有……罪)(2)suspect n.嫌疑犯;嫌疑分子(3)suspect adj.不可信的;靠不住的;可疑的
学以致用(1)赏句猜义①If yu suspect a gas leak, d nt strike a match r even turn n an electric light. 　　　　    ②The plice have nw narrwed dwn their list f suspects. 　　　　    ③His fitness is suspect, s we can't risk including him in the team. 　　　　    
(2)单句填空④They suspected me 　　　　     having a hand in the affair. ⑤Nbdy can pssibly suspect 　　　　     he says.
10.It was nt published until 1859 and immediately caused a strm.这本书直到18 59年才出版,出版后立即引起轰动。(教材P51)语言点10　句型公式直到……才…… 情境探究①If yu dn't understand anything, yu may research, study, and talk t ther peple until yu figure it ut.如果你有任何事不明白,你可以研究、学习以及和其他人交谈直到你弄明白为止。
②Leave the bandage in psitin until the dctr tells yu t remve it.让绷带保 持原样,直到医生叫你拆掉为止。③Nt until yu tld me did I have any idea f it.直到你告诉我,我才知道这件事。④Gaudi wrked n the prject frm 1882 until his death in 1926.高迪从1882年起从事这项工程直至1926年去世。⑤Yu're nt ging ut until yu've finished this.你没把这事做完就不准出去。
归纳拓展(1)在含有until引导的时间状语从句的主从复合句中,当主句的谓语动词为延 续性动词(如live、wait、wrk等)时,主句常用肯定形式;当主句的谓语动词为 短暂性动词(如g、cme、leave、finish等)时,主句常用否定形式。(2)引导时间状语从句时,若nt until置于句首,主句要用部分倒装结构, 而从句不用倒装。(3)until也可用作介词,后接名词作宾语。
学以致用(1)单句填空①When the red light is n, please stp and wait 　　　　     the green light is n.②He didn't aplgize t me 　　　　     he realized that he was wrng.(2)句式升级③She didn't find her mther alive until tw days after the earthquake. →　　　　　　　　　　　　　　  she find her mther alive.
Nt until tw days after the earthquake did
11.And it all began with the jurney n the Beagle.而这一切都开始于贝格尔号的探索之旅。(教材P51)语言点11　begin with(=start with) 以……开始情境探究①A jurney f a thusand miles begins with a single step.[谚语]千里之行,始于足下。
②The teacher began the lessn with an English sng.老师以一首英文歌曲开始了这节课。③T begin/start with, we haven't enugh mney;and secndly we haven't enugh time.首先,我们没有足够的资金;其次,我们没有足够的时间。
归纳拓展(1)以……开始……(动词短语)(2)t begin/start with 首先,第一(常作插入语,相当于副词)
学以致用(1)单句填空①T wrk ut a plan, ne has t start 　　　　     an investigatin(调查).②　　　　     (begin) with, the authr's name, Mark Twain, is itself an inventin, r the “pen name”.(2)单句写作③演出以一段五十多岁的人耳熟能详的音乐开始。The shw 　　　　　　　　　　　　     familiar t peple in their fifties.
started/began with a piece f music
用适当的词句补全教材原文。 A Jurney f Discvery The captain f the ship, the Beagle, wanted smene wh wuld “prfit by the pprtunity f visiting 　　　　    ① cuntries yet little knwn”. The persn wh answered the call was nt the captain's first chice. It was a yung man wh had left medical schl withut cmpleting his degree. What's mre, he had recently
received a letter frm his father predicting that he wuld be “　　　　　　　   ② yurself and all yur family”. Despite all this, his adventures n this ship wuld lead t ne f the mst imprtant scientific discveries 　　　　　　    ③.[文本解读]该段简单介绍了应聘登上贝格尔号的年轻人的情况以及家人对他 的评价等信息,虽然未被看好,但他的这次乘船探险之旅将带来有史以来最重 大的科学发现之一。
a disgrace t
发现之旅 贝格尔号的船长想要招募这样一名船员,这名船员将能“借此机会访问遥远① 而鲜为人知的国家并从中受益”。来应聘的人并不是船长心中的理想人选。这个年轻人从医学院肄业,并且在他刚收到的父亲的来信中,父亲预言他将会成为“自己和全家人的耻辱②”。尽管如此,他的这次乘船探险之旅将带来有史以来③最重要的一项科学发现。　　The yung man 　　　　    ④, Charles Darwin, was a gelgist and naturalist,
fascinated by rcks, plants and animals. He left England n the ship, the Beagle, in 1831.The jurney gave him the chance t study varius living things in their natural envirnments. After Darwin had spent sme time in Suth America, his rm n the ship 　　　　　　　　    ⑤ 　　　　    ⑥ f the plants and ani- mals he had cllected. As he studied these, he asked himself the questin: hw did different species 　　　　　    ⑦? [文本解读]本段承接上文,指出应聘者是达尔文,以及他是如何产生“这些不 同的物种是如何产生的”这一想法的。
was crwded with
　　我们提到的④这个年轻人就是地质学家和博物学家查尔斯·达尔文,他对岩 石和动植物有着浓厚的兴趣。1831年,他搭乘贝格尔号从英格兰启程。这次 旅程给了他研究自然环境中各种生物的契机。在南美洲度过一段时间后,他 的船舱里堆满了⑤收集到的动植物样本⑥。当他研究这些样本时,他产生了疑 问:这些不同的物种是如何产生⑦的?　　At that time, peple believed that all species had appeared n Earth at the same time, and had nt changed since. But Darwin began t think differently. He nticed that sme species f animals were very similar t each ther. Maybe ani-
mals 　　　　    ⑧ as they 　　　　    ⑨ their changing envirnments? It was just an idea, but enugh t inspire Darwin t lk fr mre evidence. [文本解读]该段首先陈述当时人们的观点,通过衔接词“But”进行转折,引出 达尔文在他旅行期间注意到的事情,从而激发他去进一步寻找证据。　　当时,人们认为所有的物种都是同时出现在地球上的,并从此再无变化。 但达尔文开始有了不同的想法。他注意到,有些不同物种的动物彼此间很相 似。也许动物在适应⑨不断变化的环境时进化⑧了?虽然这只是一个设想,但足 够激励达尔文去寻求更多的证据。
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　     　　　　　　　  ⑩. Darwin nticed that there was a difference between the 　　　   n each f the islands. It seemed their 　　　      had evlved accrding t what fd was available n that particular island. [文本解读]该段介绍了达尔文在他乘船探索至加拉帕戈斯群岛时,他对鸟类产 生了极大的兴趣,从而进一步推动他的发现。 1835年,当贝格尔号抵达加拉帕戈斯群岛时,达尔文发现了各种各样的新物种,
When the Beagle reached the Galápags Islands in 1835, Darwin saw a variety f new species, but it was the birds 
 that interested him the mst
但最令他感兴趣的是鸟类⑩。达尔文注意到,在群岛中的每一个小岛上,雀鸟 之间有所不同。它们的喙 似乎是根据所在岛屿上可觅得的食物进化而来的。　　Darwin 　　　　      that the finches had evlved frm a cmmn ancestr, which had arrived n the islands a lng time befre. Over time, it had slwly e- vlved int many new species. And that was the answer t hw new species f plants and animals came t exist: they evlved frm earlier ancestrs. [文本解读]通过观察雀鸟让他对“新动植物物种是如何产生的”这个问题确定了答案:它们从早期的祖先进化而来。
　　达尔文猜想 这些雀鸟都由共同的祖先进化而来。很久以前,雀鸟的祖先来到这片群岛,随着时间的推移,慢慢进化成许多新的种类。于是,关于动植物 的新种类是如何产生的这个问题就有了答案:它们是从早期的祖先进化而来 的。　　It was a cmpletely new idea—a thery f 　　　　     . Darwin explained this thery in his bk, On the Origin f Species. 　　　　　　　　　　　　     　　　　　　　　  . Many peple refused t believe that living things, including
It was nt published until 1859 and imm-
ediately caused a strm
humans, had evlved frm lwer frms f life. They were shcked. 　   　　　　　　　　　　　　　　　　　 　　　　　　　　　 .[文本解读]本段介绍了进化论的提出及其产生的影响。这是一个全新的观点——进化 论。达尔文在他的《物种起源》一书中解释了这一理论。这本书直到1859年才出版,出版后立即引起轰动 。很多人拒绝相信包括人在内的所有生命都是从更低级的生命形式进化而来的。他们对此感到震惊。但是达尔文的科学研究很有说服力,以至于越来越多的人开始接 受他的理论 
 scientific studies were s cnvincing that mre and mre peple started t believe his thery
But Darwin's
　　Tday, On the Origin f Species is regarded as ne f the mst imprtant wrks ever written. It has changed ideas abut life n Earth frever. And it all 　　　　      the jurney n the Beagle. [文本解读]该段介绍了《物种起源》这本书的重要意义以及影响,而这些都源 于达尔文乘贝格尔号的航行。　　如今,《物种起源》被认为是迄今为止最重要的著作之一。它彻底地改变了人类对于地球上生命的认识。而这一切都开始于 贝格尔号的探索之旅。
Ⅰ.语境填词1.In the early years, athletes ate mushrms and plant 　　　　     (种子) t im- prve their salesman brught sme 　　　　     (样品) f his firm's nly is yur mark in English a 　　　　     (耻辱), but yu have even failed in mathematics.4.I 　　　　     (怀疑) that he didn't tell me the truth.
5.As a 　　　　     (地质学家), he uncvers the planet's past by lking at its direct 　　　　     (祖先) f the mdern cat was the Kaffir cat f ancient success and failure f a language 　　　　     (产生) frm the same remember that sme birds have very pwerful 　　　　     (喙).
Ⅱ.语境选词f all time, in questin, be crwded with, cme t exist, adapt t, a variety f, be regarded as, begin with1.Certain frms f knwledge 　　　　　　　　　　     in certain is universally recgnized as ne f the greatest scientists 　　　　　　     huse used t 　　　　　　　　     visitrs, but nw visitrs are few and far between.
be crwded with
4.The lighting f a wd fire 　　　　　　     small pieces f 　　　　　　　　     natural behavir that a man helps the ld dwn new teacher was very slw t 　　　　　　　　     the unusual rules f the made the children glad in 　　　　　　　　     new ideas are 　　　　　　　　     at present, and we're awaiting final de- cisins frm tp management.
begins with
is regarded as
a variety f
Ⅲ.完成句子1.直到那时他才认识到这个问题的重要性。(nt until位于句首)　　　　　　　　realize the imprtance f the prblem. 2.疗效因人而异。(vary with)The effect f the treatment 　　　　　　　　     individuals.3.他们走得那么快,我没法跟上。()They walked 　　　　　　　nt keep up with them.
Nt until then did he
varies with different
s fast that I culd
4.他们都谨慎地避开这位严肃的教授。(distance)They were careful t 　　　　　　　　　　 the serius prfessr.5.我们不能去。首先,天气太冷。另外,我们没有钱。(begin)We can't g.　　　　　　　　    , it's t cld. Besides, we have n mney.
keep their distance frm
T begin with
Ⅳ.课文语法填空 Charles Darwin was a gelgist and naturalist, wh was fascinated by rcks, plants and animals. He 1.　　　　     (leave)England n the ship, the Beagle, in 1831.The jurney gave him the chance t study 2.　　　　     (vary) living things in their natural envirnments. After Darwin 3.　　　　     (spend) sme time in Suth America, his rm n the ship was crwded 4.　　　　     samples f the plants and animals he had cllected. As he studied these, he asked 5.　　　　     (him) the questin: hw did different species cme t exist? He nticed that sme species f 6.　　　　 (animal) were very similar t each