外研版 (2019)选择性必修 第四册Unit 5 Into the unknown课文ppt课件

这是一份外研版 (2019)选择性必修 第四册Unit 5 Into the unknown课文ppt课件，共56页。PPT课件主要包含了Reading，statistics，Examples，Group work，Writing等内容，欢迎下载使用。
Pre-reading
Lk at the picture and answer the questins. D further research if necessary.
What different znes are there in the cean?Which parts f the cean d yu think have been explred?What d yu knw abut the deepest part f the cean?
The different znes in the cean are Sunlight Zne(阳光地带), Twilight Zne(阴影区), Midnight Zne(午夜区) and Abyssal Zne(深海层).
We are entering a new age f ceanic discvery.We have little knwledge f Earth’s sea bed.Many archaelgical finds are made in shallw waters.There are extrardinary creatures in the deep sea.The ceans are a valuable surce f natural resurces.
While-reading
Read fr main idea
Skim the passage and match the main idea.
Diving deep
Para. 1: Intrduce the tpic.
Para. 2-4: Ocean _________
Para. 2: the _______ f Neaplis
Para.3: amazing _____________ discveries
Para. 5: _____________ is entering a new age f ceanic discvery.
Para.4: __________ f natural resurces
Read fr structure
Read fr details
Scan the passage and cmplete the diagram.
Archaelgical
shallw waters
vast depths
the ruins f Neάplis
the planet's fish
the capacity fr life n ur planet
bne-white cral
the barreleye
life t be fund even arund the deep-sea vlcanic penings
the sea bed
deep-sea drilling
China's underwater vessels
Read fr writing skills
What writing skills are used in the passage?
Statistics & examplesThe discurse markers(语篇标记)
Examples in para.2
whle city buried beneath the wavesRman city f Neaplislcatin:___________________time: ______________cause:______________
ff the cast f Tunisia
the 4th century
Examples in para.3
200 metresdark zne
6000 metres deep
8000 metres
Name:_____________Age: _____________
Name:_____________Features: _____________
transparent headEyes can lk upwards
life t be fund even arund the deep sea vcalnic penings
4000 years ld
Examples in para.4
China’s achievements:New natural resurce: __________Underwater vessels: ___________________________
Jialng & Shenhai Yngshi
Tip: The use f statistics and examples make the passage mre cnvincing.
discurse markers
Tip: These markers functin like rad signs, helping yu cnnect ideas and understand the writer's attitude and pinins. (P77)
Pst-reading
Think & Share
What cmmn message d the tw reading passages in this unit cnvey? Hw d they each build upn this idea?
Bth passages cnvey the message that humans have the desire and means t explre the unknwn.The first passage des this by lking at ur fascinatin with histry’s greatest mysteries, while the secnd passage lks at pineering explratin f Earth's ceans.
Watch the vide clip f prgram Tides f Change and finish the fllwing task.
“Creating a better livelihd” is shwn in the vide clip, which is als ne f the purpses f China’s cean explratin. Please intrduce the influence f cean explratin n peple’s daily life fr the audience accrding t the diagram belw.(P77)
The air we breathe: The cean prduces ver half f the wrld’s xygen and absrbs 50 times mre carbn dixide than ur atmsphere.
Climate regulatin: Cvering 70 percent f the Earth’s surface, the cean transprts heat frm the equatr t the ples, regulating ur climate and weather patterns.
Fd: The cean prvides mre than just seafd; ingredients frm the sea are fund in surprising fds such as peanut butter and symilk.
Medicine: Many medicinal prducts cme frm the cean, including ingredients that help fight cancer, arthritis, Alzheimer’s disease, and heart disease.
Recreatin: Frm fishing t bating t kayaking and whale watching, the cean prvides us with many unique activities.
Language Pints
1. Lying under waters acrss the glbe are an estimated three millin shipwrecks. All f them represent attempts ver the centuries t explre Earth's furthest crners. Amng these is the Esmeralda, the earliest wreck frm the age f the Eurpean explratin f Asia. Tday, sme 500 years after the Esmeralda set sail, there is lttle - if any - land n ur planet left unexplred. We have mre detailed maps f the Mn, and even f Venus and Mars, than we d f Earth's wn sea bed.全球水域下大约沉睡着三百万艘沉船残骸，每艘都代表了若干世纪以来探索地球最远端的努力尝试。其中就包括了“埃斯梅拉达”号，它是欧洲国家探索亚洲时代留下的最早残骸。如今，距离“埃斯梅拉达”号起航已有500多年，我们星球上尚未被人类探索的土地已经少之又少了。然而，我们手中关于地球自身海底的地图，甚至比不上关于月球乃至金星、火星的天体图详尽。
2 Given ur limited knwledge, it is perhaps n surprise that explratin f the ceans cntinues t lead t discveries in varius scientific fields. As with the discvery f the Esmeralda, many archaclgical finds are made in shallw waters near the cast. These may smetimes include whle cities buried beneath the waves. One such find is the ancient Rman city f Neaplis, discvered ff the cast f Tunisia.基于我们有限的认知，探索海洋可以带来许多科学领域的新发现，这也许就显得不足为奇了。就像发现“埃斯梅拉达”号的残骸一样，很多考古学发现都发生在近海岸的浅水水域。这些发现有时会包括埋在海浪下的整座城市，其中之一便是在突尼斯近海发现的古罗马城市奈阿波利斯。
2 Believed t have been buried underwater by a tsunami in the furth century AD, the ruins f Naiplis are almst 2,000 years ld. The remaining streets and buildings ffer a windw int a fascinating perid in ur histry. Hwever, we are nly beginning t vercme the challenges f pressure, darkness and extreme cld at vast depths. Fragments f the past lying deep beneath the ceans are still waiting t be discvered.据悉，在公元4世纪，奈阿波利斯被-场海啸淹没，其废墟至今已有近2,000年的历史。存留下来的街道、建筑为我们打开了一扇窗，让我们得以窥见那段精彩的历史。然而，我们才刚刚开始克服广袤的海洋深处的压强、黑暗和极寒所带来的挑战。过去的碎片仍深藏在大洋底部，等待被发现。
3. Amazing bilgical discveries are als being made.The dark znes f the ceans may cntain up t 90 per cent f the planet's fish. In these waters, mre than 200 metres deep, where light cannt reach, are extrardinary creatures that appear as if they are straight ut f science fictin. Imagine bne white cral 6,000 metres belw the cean's surface, grwing at the rate f nly ne r tw millimetres per year. Sme f these culd be 4,000 years ld. 生物学领域也有惊人的发现。海洋的黑暗区域里或许生存着多达地球上90%的鱼类。在200多米以下、阳光照不到的深水水域里，住着一些看 起来就像是刚从科幻小说中走出来的奇异的生物。想象一下，在海平面下6,000米深处，骨白色的珊瑚以每年仅一到两毫米的速度缓慢生长着，它们中有些已经存活了4,000年。
3. Swimming thrugh these black depths is the barreleye, a strange fish with eyes that can lk upwards thrugh its transparent frehead. In the very deepest cean trenches that are mre than 8,000 metres belw the surface, the pressure is equivalent t 50 aerplanes stacked ne n tp f anther. Yet there is still life t be fund, even arund the deep- sea vlanic penings. These discveries all help us understand the capacity fr life n ur planet, even in the mst extreme circumstances.漆黑的深海里管眼鱼游来游去，这是种奇特的鱼,其眼睛可以透过透明的前额向.上看。在海平面以下8,000多米处最深的海沟里，压强相当于50架飞机堆蠱在--起，然而这里仍有生命的存在，甚至在深海海底的火山口周围也有生命。这些深海发现帮助我们理解地球上生命的承受力，甚至是在最极端的环境下的承受力。
4 Furthermre, the ceans are a valuable surce f natural resurces, sme f which are cmpletely new t us. Mst ntable f these is China's discvery f an ice-like substance, knwn as“fire ice", under the Suth China Sea. In additin, China's underwater vessels, such as the Jialng and Sbenhai Ynrgsbi, have been explring waters at depths f thusands f metres. 此外，海洋还包含着珍贵的自然资源，其中一些对我们来说完全是新的资源。最值得一提的便是中国在南海发现的冰状物质一一可燃冰。此外，中国的水下舰艇如“蛟龙”号和“深海勇士”号，一直在数千米深的水域探索。
4 The Jialng even hlds the recrd fr the deepest dive by a manned submarine, at 7,062 metres, giving China its place alngside the wrld's tp cean explrers. The research cnducted by these vessels is giving scientists a greater understanding f hw the sea bed was frmed, as well as helping identify areas fr deep -sea drilling, taking deep sea explratin int a whle new era.“蛟龙”号甚至创造了载人潜舰的最深下潜纪录7 ,062米，使中国跻身于世界顶级海洋探索国之列。借助这些潜水器所完成的研究有利于科学家进一步了解海床的形成过程，帮助确定深海钻探区域，将深海勘探带入一个崭新的时代。
5 Being a tugh envirnment f cmplete darkness, enrmus pressure and intense cld, the cean depths have lng been beynd the reach f human explratin. Hwever, thrugh dlser internatinal scientific, ecnmic and cultural cperatin, we are all becming part f a glbal missin t pen up ur planet's final frnter. Humankind is entering a new age f ceanic discvery, and the wrld beneath the waves may ne day be almst as familiar t us as the land we walk upn tday.深海区域环境恶劣，完全黑暗、压强极大、极度寒冷，长期以来都是人类探索无法企及的区域。然而，通过更紧密的国际科学、经济以及文化合作，我们都在成为开拓地球最后疆域这一全球使命的参与者。人类正走向海洋发现的新时代，或许有朝一日，我们会像熟悉脚下的土地一样熟悉那海浪下的世界。
Tday, sme 500 years after the Esmeralda set sail, there is little— if any —land n ur planet left unexplred.
句意：今天，在“埃斯梅拉达”号起航约500年后，我们的星球上几乎没有未被探索过的陆地。
D yu like cllecting things? If s, what? 你喜欢收集东西吗？如果喜欢的话，你喜欢收集什 么？If pssible keep a spare pair f glasses accessible in case yur main pair is brken r lst. 如果有可能的话，最好准备一副备用眼镜，以防常 用的那副眼镜被打碎或丢失。The schlar seldm, if ever, ges t the pera. 这个学者很少去看歌剧。
________(如果这样的话), yu have t suffer frm great pressure.____________(如果有必要), he will design anther new advertisement.
本句中 if any 为一种省略形式，补充完整是 if there is any表示“如果有的话”。某些句式经过长期发展已成为固定搭配：if pssible 如果可能的话if nly 要是……就好了if ever 如果有过的话if nt 如果不的话What 如果……怎么办？Why nt? 为什么不呢？What fr? 为什么？when/where necessary 必要的时候/地方
If necessary
Given ur limited knwledge, it is perhaps n surprise that explratin f the ceans cntinues t lead t discveries in varius scientific fields.
句意：考虑到我们有限的知识，对海洋的探索继续导致各种科学领域的发现也许并不奇怪。
Judging frm his accent, he is frm Hng Kng. 从口音判断，他来自香港。Cnsidering yur health, yu’d better have a rest. 考虑到你的健康，你最好休息一下。T tell yu the truth, I’m nt s interested in the religius matter. 跟你说实话，我对这件宗教事情的兴趣不大。
本句为given引导的介词短语作状语，given还可作连词后面跟句子。
英语中常见的独立成分还有：suppsing/assuming/prviding/prvided (that...) 假如/如果 judging frm... 根据……判断 Generally speaking... 一般说来Frankly speaking... 坦白地说
________(give) that they’re inexperienced, they’ve dne a gd jb.___________(assume) that yu are chsen t be a vlunteer at the Olympic Games, what will yu d?________(see) that yu have n time, I have Peter replace yu.Frankly _______, I’m nt t keen n this meal, either.
3. Swimming thrugh these black depths is the barreleye, a strange fish with eyes that can lk upwards thrugh its transparent frehead.
句意：在这些黑色的深处游动的是管眼鱼，这是一种奇怪的鱼，它的眼睛可以通过透明的前额向上看。
4. In the very deepest cean trenches that are mre than 8,000 metres belw the surface, the pressure is equivalent t 50 aerplanes stacked ne n tp f anther.
句意：在海面以下8000多米的最深海沟中，其压力相当于50架飞机叠在一起的压力。
Being a tugh envirnment f cmplete darkness, enrmus pressure and intense cld, the cean depths have lng been beynd the reach f human explratin.
句意：海洋深处环境恶劣，一片漆黑，压力巨大，温度极低，长期以来都是人类无法探索的。
The West Lake was beautiful beynd descriptin. 西湖美得难以描述。I hnur him beynd expressin. 我对他佩服得无法表达。Our quality is far beynd cmparisn. 我们的质量是无与伦比的。
beynd ne’s reach 够不着 beynd recgnitin 认不出来，无法辨认beynd questin 毫无疑问的（地），确实的（地）
I find his behaviur _______________. 我发觉他的作为令人难以置信。The children were _________________. 这些孩子不听管教。The play was dull __________________. 这出戏沉闷得无法相容。I feel a sense f satisfactin and gratitude __________ _____________.我感到说不出的满足和感激。
beynd cntrl 无法控制，失去控制beynd ne’s pwer 力所不及 beynd expectatin 出乎意料 beynd expressin 难以表达 beynd ne’s capacity 超出某人能力
beynd belief
beynd cntrl
beynd descriptin
Pre-writing
Alng a special line f latitude, knwn as the 30th parallel nrth, lie numerus sites f ancient civilisatins and impressive natural features.
Read the magazine article and answer the questins.
Ancient civilisatins appeared n the parallel, including Babyln, with its famus twer;Egypt, with its pyramids; China, with its Sanxingdui culture, etc. These civilisatinsappeared at a similar time, and all develped advanced brnze-making techniques. Were they part f a single super-civilisatin, as sme think?
It’s argued that the 30th parallel nrth is a line f great natural energy, with frequent earthquakes and vlcanic eruptins. This creates amazing natural features, including Munt Qmlangma, the Dead Sea, and rivers, such as the Nile, the Mississippi and the Yangtze. Lacking any cncrete evidence.sme even claim it was supernatural pwers!
Scientists, hwever, dispute these theries. It’s mre likely, they argue, that civilisatins arse n the 30th parallel nrth because the climate there is generally warm and wet. Majr tectnic plates meet at this latitude, causing earthquakes, which helped frm the Himalayas. The rest, they say, is eithercincidence r fantasy.
1. Why is the 30th parallel nrth mysterius?
The 30th parallel nrth is mysterius because it is where numerus sites f ancient civilisatins and impressive natural features lie.
2. What are sme unusual explanatins fr it?
Sme believe that the 30th parallel nrth is a line f great natural energy, with frequent earthquakes and vlcanic eruptins, and thers even claim that its amazing natural features were caused by supernatural pwers.
3. What are sme pssible scientific explanatins?
Pssible scientific explanatins fr the 30th parallel nrth include the generally warm and wet climate that made it a gd place fr civilisatins t develp, and the fact that it is where majr tectnic plates meet.
What des an article abut an unexplained phenmenn usually include?
what the unexplained phenmenn is.
the reasns why it is mysterius.
nn-scientific explanatins abut it.
scientific explanatins abut it.
Have yu heard f the Bermuda Triangle? Tell smething abut it.
While-writing
Plan an article abut an unexplained phenmenn. D further research if necessary.
Far belw the surface f the Nrth AtlanticOcean, in a rughly triangular area knwnas the Bermuda Triangle, lie mre than 50shipwrecks and 20 plane wrecks.
What makes these wrecks s mysterius is that the cause f their fate remains largely unknwn – ships were abandned withut apparent reasn, distress signals were never sent and aircraft were lst withut trace.
Sme believe that supernatural frces are respnsible, while thers put the accidents and disappearances dwn t cincidence.
Scientific theries, meanwhile, include pilt errr when trying t navigate the area, and huge “rgue waves” caused by terrible strms. Althugh many ships and planes crss the Bermuda Triangle withut incident, the stries behind thse dmed vessels’ fates cntinue t capture peple’s imaginatins.
Nw write an article abut an unexplained phenmenn.
Please keep in mind the fur parts t be included in an article abut an unexplained phenmenn.D further research if necessary.
Pst-writing
The Bermuda Triangle Far belw the surface f the Nrth Atlantic Ocean, in a rughly triangular area knwn as the Bermuda Triangle, lie mre than 50 shipwrecks and 20 planewrecks. What makes these wrecks s mysterius is that the cause f their fate remains largely unknwn – ships were abandned withut apparent reasn,
distress signals were never sent and aircraft were lst withut trace. Sme believe that supernatural frces are respnsible, while thers put the accidents and disappearances dwn t cincidence. Scientific theries, meanwhile, include pilt errr when trying t navigate the area, and huge “rgue waves” caused