Global Warming Reading

Unit 4Global warming【导语】全球气温变暖给南极的企鹅带来了怎样的影响，你知道吗？为了爱护他们，我们应当怎么做？Antarctica, the coldest place on Earth, is too cold for most humans.It's a different story for penguins，though.Several types of penguins make their home in Antarctica.The birds walk with short steps all over the icy continent.However，they don't all have “happy feet”．Some of Antarctica's penguins are endangered.The animals, hunt for food in waters off Antarctica's coasts.They use floating sea ice as a place to rest while they search.In recent years, global warming, the slow rise of Earth's temperature, has been causing the ice to melt.“Global warming is reducing the amount of food for penguins so that they can't find enough to eat, ”scientist Shaye Wolf said.Turning up the heatHumans may be directly responsible for the continent's temperature changes, according to a new study in the journal Nature Geoscience.Temperatures in Antarctica usually do not go above freezing, or 32 degrees Fahrenheit.But lately the weather has been heating up.People add to global warming when they drive cars or use electricity.That burns fossil fuels, such as coal，oil，and natural gas.The burning of fossil fuels gives off gases that warm Earth.The harmful gases stay in the atmosphere above Antarctica, researchers say.They found that the west side of the continent is especially affected by global warming.Scientists are concerned about the possibility that Antarctica's ice may melt more over time.The icy continent is about 5 million square miles.It is covered by glaciers and an ice cap (冰冠) about 7，100 feet thick.If the ice melts, that could cause sea levels to rise around the world.Higher sea levels could lead to dangerous flooding in some countries.Cool fix for AntarcticaExperts are hopeful that conditions in Antarctica can be improved.They say people can reduce global warming by using cars and electricity less often.Even kids can help.Wolf suggests，“Talk to your friends and family about global warming, how it is harming penguins, and how important it is to stop global warming today.”【词海拾贝】1．Antarctica n．南极洲2．penguin n．企鹅3．fossil n．化石；生物4．glacier n．冰河；冰川【问题思考】1．Why can't penguins find enough food to eat?_______________________________________________________答案：Because global warming is reducing the amount of food for them.2．Who may be directly responsible for global warming?_______________________________________________________答案：Humans.Ⅰ.将单词与其正确释义连线1．consume A．图表；曲线图2．graph B．现象3．phenomenon C．燃料4．fuel D．平均的5．trend E．趋势；倾向6．mild F．温存的；温存的7．consequence G．环境；状况8．circumstance H．贡献9．average I．消费；消耗10．contribution J．结果答案：1－I2－A3－B4－C5－E6－F7－J8－G9－D10－HⅡ.依据所给汉语提示写出单词1．____________ n．洪水；水灾2．____________ v t.反对；抵制3．____________ adj.平稳的；持续的4．____________ adj.分布广的；普遍的5．____________ v t.拥护；提倡，主见6．____________ n．污染；弄脏答案：1.flood 2.oppose 3.steady 4.widespread 5．advocate 6.pollutionⅢ.依据英语释义写出单词1．________：a quick look2．________：an amount or a number of sth3．________：to pay money regularly to support a charity4．________：to express something in speech or writing，especially in a definite or formal way5．________：happening or chosen without any definite plan，aim or pattern6．________：to take a particular direction7．________：a sudden event resulting in great loss andmisfortune8．________：the limits between which sth varies；a set ofproducts of a particular type答案：1.glance 2.quantity 3.subscribe 4.state5．random 6.tend7.catastrophe8.rangeⅣ.选用短语的适当形式完成句子keep on；be opposed to；come about；result in；subscribe to；go up；quantities of；even if1．There are large _______________________________ rain in this area.答案：quantities of2．Do you know how global warming ____________________?答案：comes about3．I have never ________________ the view that schooldays are the happiest days of your life.答案：subscribed to4．If you want to make the kite __________________，pull the string hard，and then release it slowly.答案：go up5．His careless speech ____________________________ much argument.答案：resulted in6．We ___________________ the practice of power politics between nations.答案：are opposed toⅤ.领悟句子所用的句型并译成汉语1．That probably does not seem much to you or me，but it is a rapid increase when_compared_to other natural changes.______________________________________________________________________________________________________________答案：这个数值对你我来说可能是无所谓的，但是跟其他自然变化相比较而言，这却是一种快速的增长。

ReadingPre-reading1. Questioning and answeringAsk students something about a green house. What is it? What is it for? Could you tell the class in English what you know about a green house?A green house is built of glass to be used for growing plants. The air inside the green house is warm because the glass lets in the sun and keeps it from running away. So the air inside is warm and is good for growing plants throughout the cold seasons.2. Introduces students to the topic of the reading passage and the term “greenhouse gases”.3. Do exercises⑴ What is the building made of and what its purpose?⑵What’s greenhouse effect?Teaching aims:1.To read the text “The earth is becoming warmer—but does it matter”and understand what it says.2.To make students find out some useful words and expressions. Teaching procedures:Step 1. Read the text (Page26)Answer the following questions.1 what is the purpose of the first paragraph?To introduce the topic.2 what are the diagrams for?To illustrate points by providing evidence.3 what is the purpose of the last paragraph of the article?To reflect on the major theme of the text and to predict what might happen in the future.Step 2. Read again for more detailsTo understand the main idea of the text, we are going to read it once again. Write down the key sentence of each paragraph at the same time.Key sentence of each paragraph:1.A debate over whether it is human activity that has caused the globalwarming or whether it is just a natural phenomenon.2.Many scientists be lieve people have caused the increase in the earth’stemperature.3.The increased extra amount of carbon dioxide traps more heat energycausing the global temperature to go up.4.The levels of carbon dioxide have increased greatly over the last 100to 150 years.5.There are some different attitudes towards the causes of this increasein carbon dioxide.6.Over the next 100 years the amount of warming could be as low as 1to 1.5 degrees Celsius but it could be as much as 5 degrees Celsius.7.An increase of five degrees would be a catastrophe.8.Future warming would cause the sea level to rise by several meters.9.Some predict any warming will be mild with few bad environmentalconsequences.10.M ore carbon dioxide is a positive thing.11.N o one knows what the effects of global warming will be.Step 3. Listen to the tape and then find out some useful words and expressions.。

全椒中学英语课教学设计Lesson1 Global Warming所在单位：全椒中学授课年级：高三年级授课教师：王运成授课班级：高三（17）班授课时间：2008-9-5地点：多媒体教室3Unit 22 Environmental ProtectionLesson 1: Global Warming(The First Period)Teaching Aims:1. Knowledge Aims:Let students know something about global warming by reading this text.2. Ability Aims:Enable students to improve their reading ability by using different and appropriate strategies and tasks.3. Moral Aims:Let students know more about global warming and raise their awareness of environmental protection.Teaching Important Points:Make students read the text to get some specific information about the reading passage.Make students do some tasks to practice their reading ability. Teaching Difficult Points:How does the teacher use appropriate strategies and tasks to develop students’ task-based reading ability?Teaching Methods:1 Task-based teaching method2. Cooperation teaching method3. Individual, pair, and group work.4. Fast and further reading5. DiscussionTeaching Aids:Multi-mediaTeaching Procedures:Step1. Warm upStudents look some pictures about “Earth is like a paradise”.Step2. Pre- readingLet the whole students discuss two questions to guess the meaning of the title and the general idea of the text.What makes the Earth become so hot?What problems does it result in?Then, show some pictures to them.Step3. While-reading1.Fast-readingPlay the tape of the text to the students, ask them to go through the text quickly and underline the strange words on the screen.Then guess the correct meaning of each new word.2.Further-readingBefore reading again, let students read through the heads on the screen . Then ask them to skim the text and match the heads with the paragraphs.Step4. Post- reading1. Show students a form about the text; let students get moredetailed information to fill in the missing word of each blank.After few minutes, ask some students to write these missing words on the blackboard.2. Read the text and answer these questions.1) What is global warming?Global warming refers to an average increase in the Earth’s temperature that, in turn, leads to climate change.2) What human activities are causing global warming?Industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are causing global warming.3) By how much has the global average temperature increased in thelast 100 years?By 1ºF (One degree Fahrenheit)4) Are greenhouse gases necessary for life on Earth?Yes, they are. Because they trap heat from the sun in the Earth’s atmosphere. Otherwise the Earth would be cold and unsuitable forlife.5) How can we help solve the problem of global warming?We can make small changes like taking public transport, recycling, using low-flow shower heads, buying light bulbs that use less energy, using recycled paper and switching off the lights when we leave a room.Step6. V oice your opinionWhat will you do every day to help reduce greenhouse gases?Show an example to students, and then ask students to imitate this example to organize a dialogue about this question with their partners..Step7. Homework♦Read the text after class.♦Try to recycle something to make your own contribution. Then based on these actions, write a composition to share your experience with us.Step8. Record after teaching。

tend (to) 照顾
2)tendency n.倾向 a tendency to/towards sth…的倾向，趋势 have a tendency to do sth. 倾向于做某事， 往往会做某事
Eg. My grandmother tends to go to bed early every day.
5. Without the ‘green house effect’, the earth would be about thirty-three degrees Celsius cooler than it is. 如果没有温室效应, 地球会比现在冷33℃。 这是一个含蓄虚拟条件句。 有时假设的情况并不以条件从句形式表示 出来, 而是通过一个介词短语或其他方式 表示。常用的词或短语有: without, but for,
e.g. What are you going to do with the amount of money?
7. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.
Compared with your brother, you
should make greater efforts to study English.和你哥哥相比，你应该更加努 力学习英语。
3. So how has this come about and does it matter?
come about: 发生, 造成, 相当于happen 你能告诉我事情是怎么发生的吗？
①用于否定句或疑问句, 后接that引导的宾语 从句。 ②用于肯定句, 一般接whether 或if引导的宾语 从句。 如: I don't doubt _t_h_a_t__ he is telling the truth. 我毫不怀疑他在讲真话。