高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration教学演示课件ppt

这是一份高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration教学演示课件ppt，共60页。PPT课件主要包含了晨读晚诵，走进新课 一起读文，词汇新知，阅读理解，答案D　 ，答案A　 ，答案C　 ，whom　，what　，awareness　等内容，欢迎下载使用。
导语:陆地上有很多美丽的景物让人目不暇接!你知道吗?神秘的海底同样是一个美丽的世界。下面就让我们去看一看吧!
The undersea wrld is very beautiful.Nw mre and mre peple want t dive in the water t find the secrets there. Scuba diving1 is a extremely ppular sprt tday.It can take yu int a wnderful and awesme2 undersea wrld.Yu will find many strange animals in the sea.Smetimes yu will be scared3 t death!Sme are as large as a schl bus.Many sea animals give ut light in the dark and sme have sharp teeth.During the day,there is enugh light.Here,under the sea,everything is blue and green.When fishes swim nearby,yu can catch them with yur hands.If yu have bttles f air n yur back,yu can stay in deep water fr a lng time.Hwever,yu can’t dive t deep,and yu must be very careful when yu dive in deep water.
The deep sea is nt an easy place t live in.It’s cld,and it’s dark,t.The deeper it is,the less sunlight there is.At abut 3,000 feet,there is n light at all.It is very dark in the sea.Many fishes have n eyes.Sme have big eyes.A few have eyes n ne side.Apart frm4 the cld and the darkness,deep-sea animals face a third danger—ther animals.Animals eat!They must find fd t eat.Many animals eat plants.Hwever,sme animals eat meat.This means these sea animals have tw big jbs.They need t find animals as fd,and they have t try nt t becme ther fierce5 animals’ meal.
译文:海底世界是非常美丽的。现在越来越多的人想要潜水去发现那里的秘密。现在戴水肺潜水是一项非常受欢迎的运动。它能带你进入一个美妙又神奇的海底世界。你会在海里发现很多陌生的动物。有时候你可能会吓死!有些和一辆校车一样大。很多海洋动物在黑暗中发光,有些(动物)有锋利的牙齿。在白天,有足够的光线。在这里,在海底,一切都是蓝色和绿色的。当鱼在附近游泳时,你能用手抓住它们。如果你的背上带着氧气瓶,你可以在深水中待上很长一段时间。然而,你不可以潜水到太深的地方,并且在深水中潜水时你必须要非常小心。
深海不是容易居住的地方。它很冷,也很黑。越深的地方,太阳光就越少。在大约3,000英尺的地方,根本没有光。海里是非常黑暗的。很多鱼没有眼睛。有些(鱼儿)眼睛很大。有的是在一侧长着眼睛。除了寒冷和黑暗,深海动物还面临着第三个危险——其他动物。动物要吃东西!它们必须找到东西吃。很多动物吃植物。然而,一些动物吃肉。这就意味着这些海洋动物有两大工作。它们需要找到动物作为食物,它们还得尽量不成为别的凶猛动物的食物。
【词海拾贝】 1.scuba driving 戴水肺潜水2.awesme /̍ɔːsəm/ adj.令人惊叹的;很好的3.scared /skeəd/ adj.害怕;恐惧4.apart frm 除了……还有……5.fierce/fIəs/ adj.凶猛的
【理解诱思】 We can infer frm the passage that 　　　. A.the undersea wrld is wnderful and an easy place t live inB.the animals in the undersea wrld are very friendlyC.all the animals in the undersea wrld feed n plantsD.the undersea wrld is beautiful but a hard place t live in答案:D
一、单词英汉互译1.　　　　　　 /̍mɜːtʃənt/ n.商人;批发商　adj.海上货运的 2.　　　　　　 /Ik̍stend/ vt.扩展;使伸长;延长 3.　　　　　　 /nI̍?əʊʃieIt/ vt.商定;达成(协议)　vi.谈判;磋商;协商 4.　　　　　　 /fliːt/ n.舰队;机群;车队 5.　　　　　　 /bI̍həʊld/ vt.看;看见 
merchant　extend　negtiate　fleetbehld　
6.league /liː?/ n.　　　　　　　　　　　　　　 7.ryal /̍rɔIəl/ adj. 　  8.withdraw /wIð̍drɔː/ vi.& vt. 　  9.channel /̍tʃænl/ n. 　  10.bnd /bɒnd/ n. 　　　　　　　　　　　  vt.& vi. 　　　　 　　　　　　　 
等级;水平;联合会;联赛　 皇家的;王室的;高贵的　 (使)撤回;撤离　 航道;海峡;频道　纽带;关系　增强信任关系;使牢固结合
二、短语英汉互译1.set sail 　　　　　　　　　　　 2.in a league f ne’s wn 　  3.withdraw frm 　　　　　　　　　　　 4.　　　　　　　　　　　　 在手头;可供使用 5.　　　　　　　　　　　　 到达;走到 6.　　　　　　　　　　　　　　 在……的掌管下 7.　　　　　　　　　　　　 作为对……的回报 
起航;开航　 独领风骚　 退出;撤回　
in hand　reach ut　under the cmmand f　in return fr　
8.fr the benefit f 　　　　　　　　　　　 9.pint f view 　　　　　　　　　　　 10.drive sb t d sth 　　　　　　　　　　　 
为了……的利益　观点　促使某人做某事
一、阅读课文“REACHING OUT ACROSS THE SEA”,判断正(T)误(F)1.Marc Pl’s stries inspired Eurpean explrers t search fr sea rutes frm east t west.(　　)2.Clumbus was the first t set sail frm east t west.(　　)3.It was after 1433 that China withdrew frm further expeditins.(　　)
二、阅读课文“REACHING OUT ACROSS THE SEA”,选择正确答案1.The tw famus peple mentined in the first paragraph are 　　　. A.Clumbus and Zheng HeB.Marc Pl and Du HuanC.Clumbus and Du HuanD.Marc Pl and Clumbus
2.Which f the fllwing statements is NOT true?A.In ancient times,silk was transprted frm India t China and ther ancient times,merchants frm China began t negtiate trade deals with 21st Century Maritime Silk Rad is part f the Belt and Rad recent years,China and ther natins have been n several expeditins t explre the Arctic.
3.We can learn frm the third paragraph that 　　　. A.Zheng He led seven large fleets t the west cast f AfricaB.African ryal families sent gifts such as gld and silkC.these land and sea rutes were ut f use after 1433D.the seven large fleets were in the charge f Zheng He
4.The Belt and Rad Initiative is intended t 　　　. A.revisit the ancient sea rutes travelled by Zheng HeB.explre the ArcticC.encurage cperatin and trade acrss the histric Silk Rad areas,and strengthen the bnds between China and the rest f the wrldD.jin mre friends acrss the sea
三、仔细阅读课文“REACHING OUT ACROSS THE SEA”,并根据课文内容将短文补充完整Trade and curisity have ften frmed the fundatin f mankind’s greatest achievements.There are many great explrers in histry,amng 1.　　　　　　 were Marc Pl and Clumbus.In ancient times,silk frm China fund its way verland t India and ther cuntries,alng 2. 　　　　　　 became knwn as the Silk Rad.Merchants frm China and many ther places met 3.　　　　　 　(negtiate)trade deals,which als led t mre 4.　　　　　　(aware) f each ther’s cultures.Later,the Ming Dynasty further develped relatins with these regins.Between 1405 and 1433,seven large fleets under
t negtiate　
5. 　　　　　 cmmand f Zheng He set sail frm the Suth China Sea t the east cast f Africa.6.　　　　　　(reach) ut acrss the sea remains a strng desire tday.The Belt and Rad Initiative aims 7.　　　　　　　　　(encurage) cperatin and trade acrss the histric Silk Rad areas and 8.　　　　　　(strength) the bnds between China and the rest f the wrld.In recent years,China 9.　　　　　　　(jin) ther natins n several expeditins t explre the Arctic.With the 10.　　　　　(late) technlgy in hand,the need t trade and the desire t enhance relatinships will drive China t reach ut acrss the sea far int the future. 
t encurage　
strengthen　
阅读鉴赏一起思考1.A trading rute acrss the sea was als extended alng the casts f the Indian Ocean,centred arund Ceyln(nw Sri Lanka).(Page 26)以锡兰(今斯里兰卡)为中心的一条横跨海洋的贸易路线沿印度洋海岸延伸。★extend vt.扩展;使伸长;延长　vi.延续Their stay extends t the New Year.他们要一直待到新年。The cmpany extended its services t Hng Kng.该公司将其业务拓展到了香港。
【合作探究】 读一读·细观察　阅读下列句子,写出句中黑体词的词性和含义①The extensin f the garden will take several weeks.词性 名词　　含义 扩展②The pub had an extensin n New Year’s Eve.词性 名词　　含义 延长期
想一想·善辨析　extend 指在一个方向上的延伸、加长。expand 指范围、体积的扩大、膨胀。
【即学即用】 单句语法填空①It is an 　　　　　　　　(extend) f new technlgy int develping cuntries. 翻译句子②The shw has been extended fr anther six weeks.③There are plans t extend the n-smking area.
答案:展览会又延长了六周。
答案:现在已经有扩大无烟区的计划。
选词填空(extend/expand)④The gvernment decided t 　　　　　　　the railway. ⑤As we all knw,irn 　　　　　　when it is heated. 
2.Here,merchants frm China and many ther places met t negtiate trade deals,which als led t mre awareness f each ther’s cultures.(Page 26)在这里,来自中国和其他许多地方的商人汇聚一起,洽谈贸易协议,这也增进了对彼此文化的认识。★negtiate vt.商定;达成(协议)　vi.谈判;磋商;协商We have been negtiating fr mre pay.我们一直在为增加工资进行协商。T ur excitement,bth sides finally negtiated a deal.让我们兴奋的是,双方最终达成了协议。
【合作探究】 读一读·细观察　阅读下列句子,写出句中黑体词的词性、词组和含义①They began anther rund f negtiatins tday.词性 名词　含义 谈判②A cntract is prepared in negtiatin with ur clients.词组 in negtiatin with 含义 与……协商
③The issue is still under negtiatin.词组 under negtiatin 含义 在商讨之中④The unin said that everything was pen t negtiatin.词组 pen t negtiatin 含义 可以协商的
记一记·长知识　negtiate vt.商定;达成(协议)　vi.谈判;磋商;协商negtiatin n.谈判in negtiatin with 与……协商under negtiatin 在商讨之中pen t negtiatin 可以协商的
【即学即用】 单句语法填空①The price is generally pen t 　　　　　　　　(negtiate). ②They stayed in that city,　　　　　　　　(negtiate) with sme merchants. 完成句子③该航空公司正在和工会商议一份新的合同。The airline is 　　　　　　　　　　　　　　　　　　　　　　. ④该工资协议的条款还在商讨之中。The terms f the wage settlement are still 　　　　　　　　　　　　　　. 
negtiating　
negtiating a new cntract with the unin　
under negtiatin
3.Over the centuries,further trading allwed mre explratin f the regins t the west f China,as recrded in Du Huan’s Recrd f My Travels in the eighth century.(Page 26)几个世纪间,随着贸易的发展,对中国以西地区的探索增多了,这些在八世纪杜环所著的《经行记》一书中有所记载。
剖析 句中的as recrded in Du Huan’s Recrd f My Travels in the eighth century是状语从句的省略结构,完整的句子为:as it was recrded in Du Huan’s Recrd f My Travels in the eighth century。在主从复合句中,当主句的主语和从句的主语一致,且从句中含有be动词的某种形式时,可以将从句的主语和be动词一起省略。如果从句的主语是it,且从句中含有be动词的某种形式,可以将it和be动词一起省略。We read sme English while waiting at the statin.我们在车站等候时,读了点英语。When asked abut the accident,the yung manager kept silent.当被问及那起事故时,这位年轻的经理保持了沉默。
【合作探究】 读一读·细观察　阅读下列句子,写出句子的汉语意思,体会状语从句的省略①The prject is hard t stp nce begun.这个项目一旦开始,就很难停下来了。②I wn’t g t attend her party even if invited.即使被邀请,我也不会去参加她的聚会。③If pssible,I will g t see my teacher while in Beijing.如果可能,在北京期间我要去看看我的老师。
【即学即用】 单句语法填空①I wn’t tell yu the secret even if 　　　　　　　　(dismiss). ②She said that she wuldn’t leave unless 　　　　　　(give) the mney. 句型转换③While she was lking thrugh the paper,she fund an interesting sentence.④When he was blamed by his father,he tld his father the secret.
答案:While lking thrugh the paper,she fund an interesting sentence.
答案:When blamed by his father,he tld his father the secret.
4.Under the cmmand f Zheng He,they set sail frm the Suth China Sea acrss the Indian Ocean t the muth f the Red Sea,and then t the east cast f Africa.(Page 26)在郑和的指挥下,船队从南中国海起航,穿越印度洋,直抵红海口,然后前往非洲东海岸。(1)★under the cmmand f 在……的掌管下Abut 300 sldiers are under the cmmand f the fficer.这个军官掌管着大约300个士兵。
【合作探究】 读一读·细观察　阅读下列句子,写出句中的黑体词组和含义①I had a gd cmmand f English,s I was hired.词组 have a gd cmmand f 含义 精通……②The fire fficer tk cmmand,rdering everyne t leave.词组 take cmmand 含义 指挥
③The captain cmmanded his sldiers t fire.词组 cmmand sb t d sth 含义 命令某人做某事④He cmmanded that everyne (shuld) crss the river.句式 cmmand that...(shuld) d... 含义 命令……
(2)★set sail起航;开航The new ship set sail n a cld mrning.这艘新船在一个寒冷的早上起航了。
【合作探究】 读一读·细观察　阅读下列句子,写出句中的黑体词组和含义①The yung man dreams f setting up a cmpany f his wn sme day.词组 set up　含义 建立 ②I set abut researching the habits f peple living there.词组 set abut ding　含义 开始做…… ③Set aside sme time each day t write,even if it is nly five minutes.词组 set aside　含义 留出 
④Yu’d better try t set dwn what the teacher says.词组 set dwn　含义 记下 ⑤We ught t set ff at 7:00,while the rads are empty.词组 set ff　含义 出发 ⑥We set ut t paint the whle huse this mrning.词组 set ut t d...　含义 开始做…… 
【即学即用】 单句语法填空①The mment she arrived hme,she set abut 　　　　　　　(clean) the rm. ②When will yu set ut 　　　　　　　(make) a clear plan fr the prject? ③The captain cmmanded them 　　　　　　(get) ff the ship. 
完成句子④在一个寒冷的早上,这艘船起航前往上海。The ship 　　　　　　　　　　　　　　　　　n a cld mrning. ⑤他很有计划,每个月都为孩子的教育存一些钱。He is rganised and he 　　　　　　　　　　　　　fr his children each mnth. ⑥现在这支军队在一位老将军的掌管之下。The army is 　　　　　　　　　　　　　　an ld general at the mment. ⑦幸运的是,这个女孩精通英语。Luckily,the girl 　　　　　　　　　　　　　　　　　. 
set sail and headed fr Shanghai
sets aside sme mney
under the cmmand f
has a gd cmmand f English
句型转换⑧The fficer cmmanded all the peple t leave the building.→The fficer cmmanded that all the peple 　　　　　　　　　　　　. 
shuld leave the building
5.Althugh China withdrew frm further expeditins after 1433,these land and sea rutes remained active channels between ther cultures fr centuries.(Page 26)尽管1433年后中国停止了进一步的探索,但在随后的几个世纪,这些陆地和海洋路线仍是与其他文化之间的活跃通道。★withdraw vi.& vt. (使)撤回;撤离I made the chice t withdraw frm cllege t care fr my grandma.我选择了退学来照顾我的奶奶。The minister withdrew his remarks later.后来部长收回了自己的言论。
【合作探究】 读一读·细观察　阅读下面句子,写出句中黑体词的词性和含义I wanted t withdraw $4,000 frm my bank accunt.词性 动词含义 提,取(银行账户中的款等)
【即学即用】 单句语法填空①It is reprted that bth pwers 　　　　　　　　　　(withdraw) their frces frm the regin already. ②She used the mney 　　　　　　　(withdraw) frm the bank t buy a new cat. 
have withdrawn　
翻译句子③Gvernment trps were frced t withdraw.④The newspaper withdrew the article yesterday.
答案:政府部队被迫撤走了。
答案:这家报纸昨天撤回了那篇文章。
6.T reach ut acrss the sea remains a strng desire tday.(Page 26)今天,跨越海洋依旧是人们强烈的渴望。★reach ut 到达;抵达 When he was yung,he was eager t reach ut acrss the sea.他年轻时就非常渴望去探索大海。
【合作探究】 读一读·细观察　阅读下列句子,写出句中的黑体词组和含义①The rganisatin needs t find new ways f reaching ut t yung peple.词组 reach ut t sb 含义 向某人提供帮助　②The shelf is s high that it is well ut f/beynd my reach.词组 ut f/beynd ne’s reach 含义 某人够不到
③The new mbile phne is priced well within my reach.词组 within ne’s reach 含义 某人能承受/够得到
说一说·勤归纳　reach ut 到达;抵达reach ut t sb 向某人提供帮助ut f/beynd ne’s reach 某人够不到within ne’s reach 某人能承受/够得到
【即学即用】 单句语法填空①Mercy is reaching 　　　　　　t thse wh have nthing t give back t yu. ②The new car is nice,but the price is 　　　　　　my reach. 翻译句子③Such matters are beynd the reach f the law.④Yu can take a bk that is within yur reach.
答案:这样的事情不受法律的管辖。
答案:你可以拿一本够得着的书。
7.Hundreds f years n,and with the latest technlgy in hand,the need t trade and the desire t enhance relatinships will drive China t reach ut acrss the sea far int the future.(Page 27)数百年过去了,由于拥有了最新技术,在贸易的必要性和增进关系的愿望的驱动下,中国将跨海越洋,迈向未来。★in hand 在手头;可供使用With s much infrmatin in hand,the man is cnfident abut his success.手头有那么多信息,这个人对成功很有把握。
【合作探究】 读一读·细观察　阅读下列句子,写出句中的黑体词组和含义①On the ne hand,cmputers imprve the wrking efficiency,but n the ther hand,they als bring abut sme new prblems.词组 n the ne hand...,n the ther hand... 含义 一方面……,另一方面……②Yu’d better keep a dictinary clse at hand.词组 at hand 含义 在手边;即将到来
③As the saying ges,success and failure always g hand in hand.词组 hand in hand 含义 手拉手;密切关联④The matter is in the hands f the plice.词组 in the hands f 含义 受某人照料;受某人控制⑤Several frmer teachers were n hand t tell stries abut the ld days.词组 n hand 含义 在手边;现有(尤指帮助);在场
【即学即用】 单句语法填空①Pverty and pr health ften g hand 　　　　　　hand. ②That matter is nw 　　　　　　the hands f a famus lawyer. ③Frtunately,help was 　　　　　　hand,and finally he was saved. 
翻译句子④On the ther hand,I dn’t want t give up my jb.⑤Generally speaking,pverty and illness will g hand in hand.
答案:另一方面,我不想放弃我的工作。
答案:一般来说,贫穷和疾病总是分不开的。
一、单词拼写1.Mst f the students were inspired by the her’s 　　　　　　(故事). 答案:tales2.When they were trying t crss the 　　　　　　　(海峡),they were arrested. 答案:channel3.The ld man used t be a successful 　　　　　　　　(商人) in Shanghai. 答案:merchant
4.The gvernment planned t 　　　　　(延长) the ld rad the next year. 答案:extend5.The tw sides have yet t shw their willingness t 　　　　　　(谈判). 答案:negtiate6.They 　　　　　　　(看见) a bright star shining in the sky. 答案:beheld
7.I will never frget the day when I jined the 　　　　　(联合会). 答案:league8.She 　　　　　　　　(撤回) the phts frm her blg. 答案:withdrew
二、用所给短语的适当形式填空
pint f view,reach ut,in hand,in return fr,under the cmmand f,fr the benefit f
1.Dn’t wrry—all the arrangements are 　 . 答案:in hand2.The ld man 　　　　　　　　　　　　fr the balln,but failed. 答案:reached ut