新编英语教程5-unit2-教学.pptx
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1、Unit TwoTEXT I Beware the Dirty Seas(当心肮脏的海洋)当心肮脏的海洋)I.Pre-reading Questions1.Suggested Answer(SA):It reminds me of a text about the polluted sea and gets interested in the text and occur great concerns on me to our living environment.Every year there is a lot of sewage poured into the seas.The wast
2、e of coastal cities,industry and factories poisons,etc,cause the seas to become dirty and cause many diseases which threaten peoples lives.Meanwhile,the I.Pre-reading Questions seas are important tour places,and the common areas of the countries along them.They play very important roles to the count
3、ries and people in the areas,if not treated properly,they will bring great trouble to human beings.III.Library Work1.Water pollution is a major element of 20th-century environmental pollution.It includes the accumulation in oceans,lakes,rivers,and streams of physical,chemical,and biological substanc
4、es that are either directly harmful to life or that have dangerous or harmful secondary and long-range effects.The principal sources of water pollution are sewage,industrial waste,garbage and refuse,and agricultural fertilizers,pesticides,and weed killers.The two chief reasons for the contami-III.Li
5、brary Work nation and exacerbation of the problem are industrialization and urbanization.Industrial wastes include dissolved minerals,toxic chemicals,and sediments.Modern industrial processes have polluted water with certain metals,such as lead and mercury,while agricultural practices do so with a v
6、ariety of pesticides.III.Library Work2.Treatment and control of wastes of all kinds is the only answer to water pollution problems.Pollution can be controlled by building sewer systems,sewage treatment plants,and installations to keep fertilizers and insecticides from entering the water.IV.Organizat
7、ion of the Text1.Paragraphs 1-4 Introducing the topic:The Mediterranean is the most polluted sea in the world(thesis statement).(1)Causes and consequences of the pollution in general.(2 4)IV.Organization of the Text2.Paragraphs 5 10 First main cause-sewage Improper treatment of sewage by many Medite
8、rranean countries.(5 7)Consequences:contamination of sea water and fish;greater likelihood of disease(8 10)IV.Organization of the Text3.Paragraphs 11 13 Second main cause-industries Untreated wastes emitted from factories along the coast and from factories located far inland IV.Organization of the T
9、ext4.Paragraphs 14 15 Other causes of pollution:pesticides,detergents,fertilizers,oil,etc.5.Paragraphs 16 20 Factors that lead to the severity of the case:narrow and shallow outlet of the Strait of Gibraltar(16);IV.Organization of the Text weak coastal currents and feeble tides(17);long-standing pra
10、ctice of dumping wastes into the seas(18);multiplication of population and increasing number of tourists(19 20)6.Paragraphs 21 22 Conclusion:Efforts being made to solve the problemV.Key Points of the TextParagraph 1holiday destination:holiday resortParagraph 2waters:the water of the stated rivers,la
11、kes,etc.E.g.:the upper waters of the Thames 泰晤士河上游泰晤士河上游 South-China Sea waters 中国南海海域中国南海海域 international waters 国际海域国际海域Paragraph 2 sluices its sewage,untreated,into the sea:let out into the sea the waste materials which have not been treated and not made safe as if through a sluice(水闸)(水闸),which
12、is a passage for waterParagraph 3to fall victim to the abilities and attitudes:to suffer from mans misuse of his abilities(or mans abilities to destroy)and his attitude of indifference towards environmental protection fall victim to:suffer fromE.g.:fall victim to a disease/an explosion/ones own avar
13、iceParagraph 3The result is that the Mediterranean,which nurtured so many civilizations,is gravely ill-the first of the seas to fall victim to the abilities and attitudes that evolved around it:What happens is that the Mediterranean,the cradle of many ancient cultures,is seriously polluted.It is the
14、 first of the seas that has been made to suffer from a situation resulting from development mixed with an irresponsible mentality.Paragraph 3stifle:to(cause to)be unable to breathe comfortably,esp.because of heat and lack of fresh air(使)窒息;抑制(使)窒息;抑制E.g.:be stifled with smoke被烟熏得透不过气来被烟熏得透不过气来 stifl
15、e political freedom扼杀政治自由扼杀政治自由 Shortages of basic materials stifled economic growth.基本原料的匮乏抑制了经济发展。基本原料的匮乏抑制了经济发展。stifle ones laughter(yawn,sobs)忍住笑(呵欠,忍住笑(呵欠,抽泣)抽泣)Paragraph 3What relationship does the author establish in Paragraph 3 between the many civilizations the Mediterranean has nurtured an
16、d its pollution?SA:The relationship between the two is that of cause and effect.Because of mans misuse of his abilities and his attitude of indifference towards environment protection,the Mediterranean,home to so many civilizations,is now in jeopardy.Paragraph 4endemic:(especially of a disease)found
17、 regularly in a particular place 地方性的地方性的E.g.:This is a problem endemic to the Western world.这是西方世界普遍存在的这是西方世界普遍存在的一个问题。一个问题。an endemic species 特有物种特有物种 endemic folkways 当地风俗当地风俗Paragraph 5litany:a form of prayer for use in church services,recited by a priest with responses from the congregation,i.e
18、.,people attending a church service 应答连祷应答连祷 Here,litany is used in its transferred meaning,referring to the frequent outbreaks of disease.E.g.:commit a litany of crimes 犯一系列的罪犯一系列的罪the mournful litany of disease:the deplorable/appalling/dreadful repetitive occurrences of diseaseParagraph 5What is m
19、ore,most cities just drop it in straight off the beach;rare indeed are the places like Cannes and Tel Aviv which pipe it even half a mile offshore:Further,while the places such as Cannes and Tel Aviv dispose of their wastes through a pipe stretching out only half a mile from the shore,most cities do
20、 not even bother to do that but simply dump their sewage directly into the sea along the coastline.Paragraph 6What does the author want to tell his readers in Paragraph 6?SA:He wants to tell his readers in Paragraph 6 that because of mans irresponsibility and indifference towards environmental prote
21、ction,Greece is rated one of the few cleaner countries of the northern shore.Paragraph 7flush out:to clean or drive out by a sudden flow of water;pour out;flood with water to clean out 冲出;泛滥冲出;泛滥E.g.:flush a toilet(lavatory)抽水冲洗马桶抽水冲洗马桶(厕所)(厕所)I was recommended fruit juices to flush nicotine out of
22、the body.我得到劝告,应我得到劝告,应多喝果汁以从体内排除尼古丁。多喝果汁以从体内排除尼古丁。Paragraph 8are awash with bacteria:have a large amount of bacteriaAwash in its literal sense means“be covered in water”.E.g.:After a heavy rain,the streets were awash.rocks awash at high tide 涨潮时被淹没的岩石涨潮时被淹没的岩石 The ships deck was awash.船上的甲板被浪潮船上的甲板
23、被浪潮冲打冲打。Paragraph 8Awash with is used figuratively,meaning“having a large amount of something,”as used in this sentence.The singular form of bacteria is bacterium.Paragraph 9lurk:to exist unseen 潜伏;潜藏潜伏;潜藏E.g.:A snake was lurking in the grass.一条蛇正潜一条蛇正潜伏在草丛中。伏在草丛中。An even greater danger lurks in the
24、 seductive seafood dishes that add so much interest to holiday menus:There is an even greater hidden danger in the attractive seafood dishes that are forever so appealing to those holiday makers.Paragraph 9What does the word“seductive”in Paragraph 9 imply?SA:Seductive comes from the word“seduce”,whi
25、ch is to persuade someone young and without sexual experience to have sex with one.Therefore seductive implies that the seafood dishes are seemingly attractive but threaten with great danger to health.Paragraph 11Factories cluster round the coastline,and even the most modern rarely has proper waste-
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