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类型大学体验英语3 Unit 1课件.ppt

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    大学体验英语3 Unit 1课件.ppt
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    1、,Unit OneCaring for Our Earth,Why should we care for our earth?,Why should we call the earth we live on our Mother Earth?We are nurtured by the healthy condition of Mother Earth. In humans, if the mother is ailing, the child suffers. We are the cause of the ailing planet and we are the victims.,Prob

    2、lem and solving,Whatre the problems?,What are the causes?,What causes acid rain(酸雨)? Acid rain is caused by the burning of fossil fuels. Such as burning oil, gas and coal in power stations and in motor vehicles.,What are the causes?,What causes air pollution? Air pollution takes many different forms

    3、 and arises from a variety of sources. Burning of fossil fuels (coal, gasoline, etc) is the single largest source of air pollutants.,What are the causes?,What causes global warming and what should we do? Listen and talk. (P8),Dialogue samples (P10),What are the causes and effects?,阅读理解:主题和展开,Topic s

    4、entence(TS): 包含有idea和key wordsDeveloping sentences(DS): 展开主题句中的一个key word或idea,补充说明“是什么?怎么样?为什么?”等等细节内容。一般会以某种方式重复key word的意义,有时会间隔一两个句子才出现重复。,我看见过波澜壮阔的大海,玩赏过水平如镜的西湖,却从没看见过漓江这样的水。漓江的水真静啊,静得让你感觉不到它在流动;漓江的水真清啊,清得可以看见江底的沙石;漓江的水真绿啊,绿得仿佛那是一块无瑕的翡翠。船桨激起的微波扩散出一道道水纹,才让你感觉到船在前进,岸在后移。,中国的农民曾经过着很艰苦的生活,并一直受着饥饿的困

    5、扰。几十年来,他们努力寻找能够提高粮食产量的方法,但收效甚微。现在,情况有了改变。多亏了袁博士的杂交水稻研究,农民们种出的粮食比以前多了一倍。这意味着世界22%的人口摆脱了饥饿。大多数农民都很满意现在的生活,宁愿呆在农村当农民。,阅读理解:猜测词义,Most of us see everything as independent from one another. But the reality is that everything is part of one interconnected, interrelated whole. These problems are worsening,

    6、not getting better. It was the spring of hope; and it was the winter of despair.,The biggest threat to our environment today is the way we, as human beings, see our environment. How we see our environment shapes our whole world.Most of us see everything as independent from one another. But the reali

    7、ty is that everything is part of one interconnected, interrelated whole. For example, a tree may appear isolated, but in fact it affects and is affected by everything in its environment sunshine, rain, wind, birds, minerals, other plants and trees, you, me. The tree shapes the wind that blows around

    8、 it; it is also shaped by that wind. Look at the relationship between the tree and its environment and you will see the future of the tree.Most of us are blind to this interconnectedness of everything. This is why we dont see the consequences of our actions. It is time for each of us to open our eye

    9、s and see the world as it really is one complete whole where every cause has an effect.,The biggest threat to our environment,Two most pressing environmental issues,议论文需要理解的信息,1. 论点(主题):(1) What is the writer going to talk about?(2) What does that mean? What does it refer to?(3) What is the writers

    10、opinion? 2. 论据:Why does he say so?Is it reasonable? Why? 3. 论证的方法:举例: Does he give examples? 以前有一个人引用: Does he cite any sayings? 古人说对比: Does he make a comparison? 2比1更好分析原因:Does he analyze the causes and effects? 原因1,2,3推理结果:Does he deduce the results? 如果就会正反论证:Does he argue the pro and the con? 相反,

    11、如果不 4. 词句理解:,议论文需要理解的信息,论点: 1. What does the speaker want to talk about? Expert 1: biggest threatExpert 2: most pressing environment issuesExpert 3: ways to help, specific area of concernExpert 4: future (where will it head to?) 2. What does it refer to?Expert 1: The biggest threat is the way we see

    12、 our environment. 3. What is the writers opinion?Expert 1: Most of us see everything as independent from on another.论据: Why does he say so? Expert 1: We can see the relation of interconnectedness from a tree and its environment.,阅读理解:上下文的连贯有时依赖于关键词的重复,词义重复的几种形式 1. 简单重复: see 2. 同义词重复: independent, is

    13、olated 3. 反义词重复: see, be blind to 4. 上下义词重复: relationship, independent, interconnected 5. 定义,解释重复: environment, sunshine, rain, wind,找出Part 2中deforest和global warming的重复,议论文需要理解的信息,Choose the best answer according to the first part of the text.1. What is the main idea of this part? A. The biggest thr

    14、eat to the environment is human beings. B. We should see the world as one interconnected, interrelated whole. C. The relationship of the trees and the environment. D. We should see the interconnectedness of the trees and its environment. Answer: B,2. Which statement is correct? A. Everything is a wh

    15、ole. B. A tree is an isolated whole. C. A tree affects people around it. D. Everything is independent from one another. Answer: C3. The speaker thinks the relation of the tree and the wind shows us A. The biggest threat to the environment is human beings. B. Trees are very important to the environme

    16、nt. C. The tree shapes the wind and is shaped by the wind. D. Everything is not independenat from on another. Answer: D,议论文需要理解的信息,4. Which word best explain “shape”? A. figure B. form C. affect D. cause Answer: C,议论文需要理解的信息,Choose the best answers according to the second part of the text.1. The two

    17、 most pressing environmental issues are _. A. air and water pollution B. the loss of trees and the burning of fossil fuels C. the decreasing of forest and the temperature of the earth getting higher D. lands transformed into deserts and the release of greenhouse gases Answer: C,议论文需要理解的信息,2. Which s

    18、tatement is not true? A. The areas of the forest on the earth is only half the size of 10,000 years ago. B. The loss of trees have affected the ecosystem. C. Areas downwind are transformed into deserts. D. Burning of fossil fuels releases greenhouse gases. Answer: C3. The result of deforestation is

    19、_. A. that the imbalance of the water evaporated and the rainfall. B. that carbon dioxide can not convert to oxygen. C. that areas downwind of deforested land are becoming dry and will transform into deserts. D. Global warming and greenhouse effect Answer: C,议论文需要理解的信息,4. The ecosystem should includ

    20、e _. A. the trees, the soil, the rainfall, the water and the air. B. the animals, the plants, human beings and the building. C. the forest, carbon dioxide, oxygen, rainfall and deserts. D. the mankind, topsoil, climate and underground water. Answer: A,议论文需要理解的信息,文章的主题和展开,文章的主题和展开,Topic sentence(TS):

    21、 包含有key words 和topic(主题思想)Developing sentence(DS): 展开主题句中的一个key word或topic,补充说明“是什么?怎么样?为什么?”等等细节内容。一般会以某种方式重复key word的意义,有时会间隔一两个句子才出现重复。Example (P25),文章的主题和展开,文章的主题和展开,Recent awareness of the energy shortage in America has brought the bicycle into renewed popularity. bikesbicyclebusiness boominm.

    22、Manybikewayscyclists. bycycle theft growing, bike protectionnew profits. More and morebicycleRecent awareness of the energy shortage in America has brought the bicycle into renewed popularity. More and moreputting new push behind effortssamll cars, huge gas-gulpers, walk treasurelimited energy(For more examples see answers to exercise 19),

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