Lesson1GlobalWarming
Lesson 1Global warming
Para.1 Introduction: Human beings are causing_c_h_a_n_g_e_s_i_n_t_h_e_E_a_r_t_h_’s_c_l_im__a_te__ and it is believed that _g_lo_b_a_l_w__a_rm__in_g____ could be one of the biggest___e_n_vi_r_o_n_m_e_n_t_a_l _p_ro_b_l_e_m_s________ in the 21st centry.
Para.2 Definition: Gloable warming refers to_____ in the Earth’s temperrature that, in turn,______ climate change.
Para.3 Causes: Many experts insist that the blame for this global warming can mostly____.
Lead in Can we take
the heat?
The earth is having a fever.
Drawing your attention
The biggest problem of 21st century
The greenhouse effect
The temperature of the earth is controlled by greenhouse gases such as carbon dioxide.
Post reading
Voice your opinions:
What will you do every day to help reduce greenhouse gases ?
教案教学设计北师大版unit22lesson1globalwarming
高中英语教学设计
河南省沁阳市第一中学李志娟
教学过程设计
Blackboard design (板书设计)
Reflection after teaching（教学反思）
本节课我设置4个任务，让学生以自主学习和小组合作探究的两种形式来完成各个任务。
活动既有轻松有趣的采访，角色扮演，个人演讲，哥本哈根气候大会等形式，既对阅读内容有了深层次的把握，又激发了学生的学习兴趣和用英语表达的欲望，小组活动在竞赛中进行，使得小组活动既有合作又有竞争，增加了小组活动的有效性。
达到激励学生学习，帮助学生有效调控自己的学习过程，使学生获得成就感，增强自信心，培养合作精神的目的。
存在问题一，由于课堂时间有限，在阅读方面没有给学生足够时间巩固。
二，由于学生的语言基础不扎实，在表达自己的看法和用英语进行讨论时，不时有学生夹杂着汉语，或有的学生不敢大胆说出自己的看法，欲言又止。
这说明，在平时的教学中，我应该多呈现给学生更多的常用句型，让学生掌握常用句型，在让学生进行谈论前，应尽量帮助学生解决语言困难。
在学生进行小组活动时，应尽量给学生更多的帮助，主动了解学生的语言困难，还时间给学生。
北师大版高中英语选修八Unit 22《Lesson 1 Global Warming》教案 4
Ｉ．单元教学目标1. Read an article on global warming and identify missing information in a text.2. Talk about environmental issues in the world today.3. Listen to and take notes from a lecture and a radio interview.4. Write a report about the environment.5. Revise reported speech and practice vocabulary relating to global warming, natural disasters and endangered animals.II．目标语言词汇1. 课标词汇trap, ecology, botanical, consultant, brewery, reserve, principle, boycott, corrupt, conservation, consensus, beyond, relevant, refer, ray, bounce, pin, agriculture, coincidence, condemn, federal, reservation, sacrifice, advocate, recycle, substitute, threaten, pancake, hurricane, tortoise, mainland, hook, seize, behalf, typhoon, grand, scale, changeable, thunderstorm, rainfall, irrigation, arm, rough, quake, offshore, catastrophe, separation, means, construct, shabby, clay, brick, slip, slide, mountainous, howl, flee, potential, roll, plug, quilt, cushion, skyscraper, adopt, rail, warehouse, considerate, finance, allocate, politics, fragile, pest, sharpener, sharpen, valid, evolution, trunk, tusk, mature, carve, calculate, cube, cubic2. 认读词汇greenhouse effect, endanger, claim, drought, species, leopard, crested ibis, alligator, extinct, habitat, Tibetan antelope, Tibet, fashionable, enforce, orangutan, landslide, tsunami, industrialisation, negative, soundproof, decibel二. 词组a number of, beyond one’s control, look ahead, in turn, lead to, take action, ahead of, apart from, answer for, call for an end to sth, or else, wrap up, on somebody’s behalf, for good, carry off, all in all, result in, earn one’s living, plug one’s ears, all the best, sum up, as a matter of fact, break away from三. 语法Reported speechPassive V oice (III)四．重点句子1. Global warming refers to an average increase in the Earth’s temperature that, in turn, leads to climate change.2. Without these naturally occurring gases, the sun’s rays would bounce back into space leaving the Earth cold and impossible to live on.3. Given this data, it seems that the link between human activities and rising global temperatures is not merely a coincidence.4. What is ridiculous is that they say the climate isn’t changing when it obviously is.5. Tigers are killed by hunters because it is falsely believed that parts of the tiger’s body are good for people’s health.6.There are thousands of endangered species in the world and if the rate at which species are becoming extinct continues to rise, then millions of species will become extinct in the next decade.7. Nature is turning on us!8. The last few years have seen environmental disasters on a grand scale, and experts are predicting far worse to come.9. This catastrophe is still very fresh in the minds of people worldwide who have not yet get over their separation from loved ones lost in the tsunami.10.Most disaster experts believe there is the potential that things could get a lot worse.11.In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the Earth’s climate —something previously seen as beyond our control. 12.A number of nations have already been in armed conflict over water, and reduced rainfall in the west of the US has resulted in huge forest fires.五．交际用语1. Justifying Arguments...so that...That’s why...I mean, basically...And I think, because of that....That’s the reason why...One reason they are poor is...2. Giving opinionsWhat I don’t understand is...What’s really worrying ...I’m not sure. I haven’t thought about it much.What’s ridiculous is...That’s a good question.What we should do is...III．教材分析与教材重组本单元以环保为话题，介绍了人类与环境、动物与环境的关系。
北师大版高中英语选修8 Unit22 Lesson1 Global Warming参考教案
Unit22 Lesson 1 Global Warming参考教案Teaching aims:By the end of this lesson, students will1.have a better understanding of what global warming is2.know the serious consequences that global warming may cause3.realize the importance that we need to take actionTeaching methods:Prediction, pair work, fast reading, careful reading, group discussionTeaching aids:Some slides, a projector, a computerTeaching procedures:Step 1 pre-reading1. Lead- inUse some cartoons to lead to the topic--- Global Warming.Ask students how much information they know about global warming and which countries contribute more to global warming: developed countries or developing countries.2. PredictionEnable students to consider what they will talk about if they are to write a passage entitled “global warming”.3. Sub-title explanationWork out the meaning of the word “take”.Step 2 While-reading1.First reading (pair work)Go through the text quickly and grasp the general idea of each paragraph.2.Second readingRead the text carefully and answer the following six questions.1 What is global warming?2What’s the use of carbon dioxide according to the text?3 By how much has the global average temperature increased in the last 100 years?4 What human activities are causing global warming?5 What consequences will global warming cause?6 How can each of us help solve the problem of global warming?Step 3 Post-reading1. Listening (Listen to strengthen understanding)2. Blanks filling. Students are asked to fill in the blanks with some key words to retell the text. Step 4 Group discussionWhat’s your attitude towards plastic bags banning?What can we use without these free plastic bags?Step5 SummaryWhat do we learn from today’s lesson?What will we do to protect our environment in our daily life?Step 6 Homework1.Finish Exercise 5 on page 72.Preview Grammar--- Reporting。
北师大选修八 Unit 22 Lesson1 Global Warming
Task 1 Guessing game
Words about global warming! 8 points for Step1 16 points for Step2
Step1 Scan the text for these words and work out their meanings •
Reading for details ; Group Discussion and presentation
E.the effects (consequences)
of global warming
青云中学 罗喜红
STRUCTURE OF THE TEXT
• 提出问题(paragraphs1--2) • 分析问题(paragraphs3--4) • 解决问题(Paragraph5)
• ——说明文常见结构
Science or practice of farming
农业(学)
青云中学 罗喜红
5.The prisoner was condemned to death for killing six people.
be sentenced
宣判
6. At first, the two sides didn’t agree with each other. After 5 days’ negotiation ,they finally reached a consensus . 一致意见/共识 agreement
• • •
• A. the science of growing 1.consensus food and raising animals— farming 2.substitute • B. general agreement • C. a striking occurrence of two or more events at the 3.agriculture same time,apparently by chance 4.coincidence • D. to take the place of
Unit 22 Lesson 1 Global Warming
Unit 22 Environmental Protection导案Lesson 1 Global Warming英语组张书英Learning aims :At the end of the lesson ,you will (1) learn and master some important words andphrases(2) understand the main idea of the text(3) deal with some details of the text(4) stress the importance of protectingenvironment .Important points: words: consensus relevant bounce coincidencecondemreservationsacrifice advocatesubstitutephrases:beyond one’s control look aheadin huge quantities switch off takeactionDifficult points：(1) Improve students’ reading skills(2)Ask the students to have the awareness of environmental protectionTeaching procedures:StepⅠLead -inToday we are facing many environmental problems:Can you give some examples?What caused these prolems?What is global warming ? StepⅡLearn new wods and phrases (See Important points)StepⅢFast-readingRead the text quickly and match its main idea with each paragraphParagraphs Main ideas1 A. Meatures we shoud take2 B. Introduction3 C.The reasons of global warming4 D.The definition of global warming5 E. The consequences of global warmingStepⅣCareful-readingRead the text carefully and choose the best answer .1.According to the text ,one of the biggest environmental problems facingthe 21st century could be ______ .A. epidmic diseasesB. droughtsC. earthquakesD. global warming2. Over the last 100 years, the global average temperature has increased by _____.A. 1 ℉B. 2℉C. 3℉D. 4℉3. “ Many experts insists that the blame for this global warming can mostlybe pinned on human activities” The underlined part means in Chinese________.A. 固定B. 指望C. 承担过失D.决定4. Global warming will cause _______.A. climate changesB. serious diseasesC. the polar ice to meltD. allof the above5. Which of the following is TRUE ?A. Carbon dioxide traps heat in the Earth’s atmosphere thus thetemperature rises .B. Gases from the factories and vehicles have been speeding up theprocess of global warmingC. Many experts insist that global warming has little to do with humanactivities.D. We will soon find a substitute for our planet –the EarthStepⅤFurther- readingPart A: Learn about vocabulary (often you can tell the meaning of a phrase from other phrases and ideas in the text )1.think about something in the future (para 1 line 8) __________2.be related to (para1 line12) ___________3.result in (para1 line 14) ____________4.because of (para3 line27) ____________5.take measures (para5 line62) ______________6.turn off (para5 line67) ______________Part B: Complete the sentences with the phrases above on the right.1.The government must_____________(采取措施)to stop the river frombeing polluted.2._______________(因为，由于) the heavy rain ,the sports meet has beenpostponed till next Tuesday.3.________（关掉）all the lights when you leave the classroom.4.__________(展望未来), scientists believe that global warming could beone of the biggest environmental prolems.5.Too many cars and factories also _________(导致) global warming .Step ⅥConsolidation – readingReread paragraph 5 and finish the following passage.__1___ we know global warming is caused by human activities, we should take action to __2__ them happening. Governments all over the world have a responsibility __3___ the amount of carbon dioxide. However, some governments express reservations(保护) about _4____ global warming is caused by human activities. Many people think they are simply not prepared to sacrifice the amount of money to save the earth. ____5_ why wait around for them to take action ? Experts advocate each person __6__ their part. They suggest __7____small changes like taking public transport ___8___ driving a car, recycling, using low-flow showerheads, etc. They could be the changes __9___save our future. __10___, there’s no substitute for our Earth.1. A. For B. Since C. When D. While2. A. prevent B. keep C. leave D. make3. A. to reduce B. reducing C. reduced D. to be reduced4. A. which B. whether C. if D. what5. A. And B. So C. But D. Or6. A. have B. take C. play D. show7. A. make B. made C. to make D. making8. A. instead of B. rather than C. other than D. more than9. A . / B. that C. what D. when10.A. After all B.Above all C. first of all D. At allStep ⅦHomework。
Unit 22 lesson 1 Global Warming
Look at these sentences from the text and explain why the underlined verbs are not the same tense as the reporting verbs.
1 Recent report from the IPCC warned that global warming will cause dramatic climate changes.
2 OK, you are right,some poisionous chemical did escape into the atmospere.
They admitted that some poisonous chemicals had escaped into the atmosphere. 3 Why don’t you drop in tonight? He /She/They invited me to drop in tonight.
2 Gases pumped into the Earth’s atmospere have been speeding up the process of global warming. to claim that
3 Global warming could be one of the biggest environmental problems facing the 21st century. to believe that 4 Global warming is mostly due to human activities. to insist that 5 Global warming will cause dramatic climate changes including more frequent floods ,heat waves, and droughts. to warn that
北师大版高中英语选修模块八 Unit22 Lesson1 Global Warming教案-新版
Unit22 Lesson 1 Global Warming教案Teaching aims:By the end of this lesson, students will1.have a better understanding of what global warming is2.know the serious consequences that global warming may cause3.realize the importance that we need to take actionTeaching methods:Prediction, pair work, fast reading, careful reading, group discussionTeaching aids:Some slides, a projector, a computerTeaching procedures:Step 1 pre-reading1. Lead- inUse some cartoons to lead to the topic--- Global Warming.Ask students how much information they know about global warming and which countries contribute more to global warming: developed countries or developing countries.2. PredictionEnable students to consider what they will talk about if they are to write a passage entitled “global warming”.3. Sub-title explanationWork out the meaning of the word “take”.Step 2 While-reading1.First reading (pair work)Go through the text quickly and grasp the general idea of each paragraph.2.Second readingRead the text carefully and answer the following six questions.1 What is global warming?2What’s the use of carbon dioxide according to the text?3 By how much has the global average temperature increased in the last 100 years?4 What human activities are causing global warming?5 What consequences will global warming cause?6 How can each of us help solve the problem of global warming?Step 3 Post-reading1. Listening (Listen to strengthen understanding)2. Blanks filling. Students are asked to fill in the blanks with some key words to retell the text. Step 4 Group discussionWhat’s your attitude towards plastic bags banning?What can we use without these free plastic bags?Step5 SummaryWhat do we learn from today’s lesson?What will we do to protect our environment in our daily life?Step 6 Homework1.Finish Exercise 5 on page 72.Preview Grammar--- Reporting。
Lesson1GlobalWarming
into practice; ?understand the article by using different reading strategies; ?realize the severity of global warming and put forward
Vocabulary learning
consensus be relevant to coincidence bounce back condemn life express reservations about sacrifice substitute
Skimming for the gist
If we continue to produce carbon dioxide and other gases in such huge quantities, we are cdoensdtreomyniningg life on earth.
Vocabulary learning
reservation
Vocabulary learning
relevant coincidence
The scientists claim that global warming is
rreelleavtaendt to human activities. The link is ncoetrtaaincotoinhciadpepnecne..
…
agriculture
forest destruction
北师大版高中英语选修八Unit 22《Lesson 1 Global Warming》课件 Reading 2
Use the expressions in the box in the correct form to complete the sentences.
beyond our control, pump into, as a result of, in large quantities, refer to, speed up
people worldwide, the savings are significant.
Taking public transport like buses can reduce greenhouse gas emissions
And Taking train can also help a reduction of greenhouse gas.
pumped into
1 Water was
the fish pond from the
river. 2 We all need to
speed up
to finish in time!
3 There is nothing more we can do .the situation is now beyond our contr.ol
The Greenhouse Effect
Without this greenhouse heating, the Earth's average temperature would be only about -73 C
(-100 F); even the oceans would be frozen under such conditions,such as the Moon and the Mars.
to believe that
优质课Lesson 1 Global Warming
4. 用在否定和疑问句中，意思是“除……之外”。
I know nothing beyond what he told me. 5. beyond还可表示年龄或数量，意思是“超过”。
He didn’t believe in people living beyond 100.
Which countries do you think contribute more to global warming?
USA
South Africa
London
Scan the text below for these words and work out their meanings. consensus general agreement
3. By how much has the global average temperature increased in the last 100 years?
By 1 °F ( one degree Fahrenheit).
4. Are greenhouse gases necessary for life on Earth?
Unit 22
Environmental Protection
Lesson 1
What do you know about Copenhagen Conference?
The 2009 United Nations Climate Change Conference, commonly known as the Copenhagen Summit, was held at the Bella Center in Copenhagen, Denmark, between 7 December and 18 December 2009. The conference included the 15th Conference of the Parties (COP 15) to the United Nations Framework Convention on Climate Change and the 5th Meeting of the Parties (MOP 5) to the Kyoto Protocol.
Unit22Lesson1GlobalWarming教案（北师大版选修8）.doc
Teaching Material Module 8, Unit 22, Lesson 1Teaching Object Students in Senior TwoTeaching Aims Knowledge aims:1.To read the text and help the students master some words, such as consensus,bounce, agriculture, coincidence, condemn, reservation, sacrifice and advocate.2.To get the students to learn about causes and effects of global warmingAbility aims:1.To guess the meanings of some new words from the context and get the detailedinformation through scanning and careful reading.2.To discuss how to help reduce greenhouse gases in daily life in groups.3.To write an essay about what should be done to help reduce greenhouse gases.Emotion aims:1.To raise the students’ awareness of protection the Earth.2.To encourage the students to get involved in environmental protection and lead alow-carbon lifestyle.Important and Difficult Points 1.Instruct the students to guess the meanings of new words from the context and getkey information from the text.2.Help the students realize the importance of playing their own part to protect theglobe and write an essay about it.Teaching Aids Blackboard, Computer, Projector,Teaching ProceduresTeacher’s Activities Students’ Activities Purposes StepⅠW arm-upGet the students to watch a video clip about a public ad of global warming. Watch the video clip and figure outthe topic of this period.To lead in the topic andarouse their interest.StepⅡPre-reading1. Get the students to talk about which countries contribute more to global warming and explain the reasons.2. Elicit answers from the students. Talk about the question and try tothink about the reasons for theanswer.To prepare for the followingintensive reading.StepⅢWhile-reading T ask One: Scanning1. Get the students to scan the text for some new words.2. Have the students work in pairs and work out their meanings from the context.3. Check the student s’ answers.4. Help the students to analyse the organization of the text. 1. Scan the text for the sentences wherethe words are.2. Work in pairs, working out themeanings from the context.3. Divide the text into three parts.1. To cultivate the students’ability to guess new words.2. To help the students findout the organization of thetext.T ask T wo: Careful Reading1. Guide the students to read Part one carefully and try to find out the main purpose of the first paragraph.2. Guide the students to read Part two carefully and try to find out the answers to the 6 questions.3. Guide the students to read Part three carefully and try to find out the answers to the 2 questions. 1. Read Part one carefully and find outthe main purpose of it.2. Read Part two carefully and find outthe answers according to the 3paragraphs.3. Read Part three carefully and find outthe answers to the following questions.1. To get the students to havea better and furtherunderstanding of the text.2. To cultivate the students’ability to get detailed andkey information throughintensive reading.Task Three: Task-based Reading1. Present the chart and ask the students to find the answers from the text.2. Get the students to check answers in pairs first and then as a class. 1. Look for suitable words from the textaccording to the chart.2. Check answers in pairs by swappinglearning sheets first and then reportanswers actively.1. To consolidate the students’comprehension of the text.2. To help the students storemore vocabulary.StepⅣPost-reading1. Guide the students to think about what they will do to help reduce greenhouse gases, working in groups.2. Call on the students to take part in environmental protection. 1. Work in groups, talking about whatthey will do to help reduce greenhouseeffects.2. Realize the importance of protectingour globe.1. To enforce what thestudents have learnt andencourage cooperation.2. To adovate leading alow-carbon lifestyle.StepⅤHomework1. Read the text fluently and recite Para.2.2. Write an essay about what you will do to live a low-carbon lifestyle.（适应于A层）Step ⅥDesign on the BbStep ⅥRecord after teaching。
北师大版选修模块8 Unit22 Lesson1 Global Warming
教学重点
培养学生如何运 用阅读策略获取信息 以解决问题的能力。 引导学生对低碳生活 的措施进行归纳， 培养 语言表达和概括能力。
任务型教学和合作学习
教学难点
任务型教学和合作学习
七、教学环境设计 本课采用任务型教学法，同时辅助多媒体教学。用图片、视频及动画使抽象的语言 变得直观，同时增加课堂容量。实现师生互动，生生互动的多向交流。 多媒体能很好地利用各种教学资源，而且直观性强，采用多媒体课件形式，在课前 采用与本课主题相关的视频导入。学生参与面广，且充满积极性。 八、教学媒体（资源）选择（依据“经验之塔”P42，确认有助于教学） 知识点 编 号 学习 媒体 教学 媒体内容要点 目标 类型 作用 使用 方式 所 得 结 论 占用 媒体 时间 来源
保护、低碳生活这个主题和他们的实际生活息息相关，能够激发他们的学习兴趣。但由 于本课生词较多，篇幅较长，学生在理解方面存在一定的问题。 信息素养：让学生通过阅读，从语言材料中获取相关信息，并通过信息的加工和处 理，提高他们的语言运用能力。 五、知识点学习目标描述 知识点 编 号 U22 L1.1 学习 目标 知道 具 体 描 述 语 句
Step II Show a picture to the Students read the text 幻 灯 片 、 训练学生通过 skimming 这个阅 Reading Task1 students and ask them quickly and answer 课本 读技巧对文章的大意有所了 what is global the question. 解。 warming. Step III Ask the students to Scan the text and 幻 灯 片 、 学生通过 scanning 获取特定的 Reading Task2 read the text quickly match headings 课本 信息，对文章的内容有了进一 and match the with paragraphs 步了解。 headings with the paragraphs. Step IV Ask the students to Read the Reading Task3 read the text carefully carefully and answer answer the five questions questions text 幻 灯 片 、 通过细读，全面了解课文 and 课本 the
北师大版Unit22.Lesson1Global Warming阅读课件
consensus bounce agriculture
coincidence
•a remarkable concurrence of events by chance •move quickly up, back, or away from a surface after hitting •a general agreement •the science or practice of farming
Post reading: Group work
Voice your opinions:
What will you do everyday to help reduce
greenhouse gases?
Examples
take public transport like buses，trains and subways
Which countries do you think contribute more to global warming? Developed a) developed countries countries – more industry and technology. b) developing countries
pumped into 1 Water was the fish pond from the river. 2 We all need to speed up to finish in time!
3.There is nothing more we can do .the situation
is now beyond our control .
4) 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, and buying energy-efficient light bulbs to help stop global warming.
北师大版Unit2Lesson1Global Warming阅读 PPT
Read the text and answer the questions.
1. What human activities are causing global warming? 2. By how much has the global average temperature
increased in the last 100 years? 3. Are greenhouse gases necessary for life on Earth? 4. How can we help solve the problem of global
There have been several summits of governments to discuss this problem but many countries don’t want to make changes to their factories and industrial works as this would cost them money.
21
buy the recycled products
The recycling symbol
22
use low-flow shower heads
buy energy-efficient light bulbs
23
Post reading: Group work
Voice your opinions:
warming. E. What cause global warming
Scanning:
Scan the text below for these words and work out their meanings.
英语：22.1《Global warming》教案(北师大版选修8)教学内容
英语：22.1《G l o b a l w a r m i n g》教案(北师大版选修8)Unit 22 Environmental ProtectionLesson 1 Global WarmingTeacher:Wang longshui Date:Apr.24,2012Teaching aims:By the end of this lesson, students will1.have a better understanding of what global warming is2.know the serious consequences that global warming may cause3.realize the importance that we need to take actionTeaching methods:Prediction, pair work, fast reading, careful reading, group discussionTeaching aids:Multi-mediaTeaching procedures:Step 1 Revision1. Ask students to say out several kinds of environmental problems.2. Match the Key Words with their Chinese meaningsconsensus bounce agriculture coincidence condemnreservation sacrifice advocateStep 2 pre-reading1. Lead- in Use some pictures to lead to the topic--- Global Warming.Ask students which countries contribute more to global warming: developed countries or developing countries.2. Prediction Based on the title “Can we take the heat”and some pictures, enable students topredict : What is the text about?Step 3 While-reading1.First reading (pair work) Match the headings with the paragraphs.Para 1. Draw readers’ attention to the topic by asking questions.Para 2. What should human beings do.Para 3. What is global warming.Para 4. Consequences of global warming.Para 5. What cause global warming2.Second reading Read the text carefully and answer the following questions.(1)What is global warming?(2) What human activities are causing global warming?(3) By how much has the global average temperature increased in the last 100 years?(4) Are greenhouse gases necessary for life on Earth?(5)How can each of us help solve the problem of global warming?Step4 Post-readingListen and Complete the formStep 5 Group discussionWhat do we learn from today’s lesson?What will we do to protect our environment in our daily life?What will we do every day to help reduce greenhouse gases?We can do:energy-saving light bulbs,recycled paper, low-flow shower head,public transport , switch off…Step 6 SummaryFill in the blanks about the text.Global warming means an aver age increase in the Earth’s temperature which causes climate change in turn. Scientists think it is ______ ______ that cause global warming, especially gases from ________ and vehicles which speed up global warming. They also think global warming is one of the biggest environmental problems in the 21st century.The Earth’s temperature is controlled by __________ _____like carbon dioxide which ___ heat from the sun in the Earth’s atmosphere. Many experts believe global warming is mainly caused by human ________. Over the last 100 years , the global average temperature has increased_______ and if human beings continue to pump __________ gases into the Earth’s atmosphere, the global warming will cause dramatic climate changes like more frequent floods, _________ and Droughts. There are some serious diseases. Sea level will be ______ , floating coastal area , negatively affecting ______ and forestry.So governments all over the world should reduce the ______of greenhouse gases. We individuals should pay ________ to what we are doing, even small changes like ______ public transport, ________, using low-flow ____________, buying energy-efficient ___________ using recycled paper or ___________ lights can have __________ on the future of the Earth .Step 7 Homework1.Finish Exercise 5 on page 72.Preview Grammar--- Reporting。
北师大 英语 必修 8 Unit 22 Lesson1 Global Warming(共20张PPT
Careful reading(1)
Para.1 Para.2 Para.3 Para.4
Para.5
Introduction: Human beings are causing____ and it is believed that ________ could be one of the biggest______ in the 21st centry.
Consequences: If we continue to produce greenhouse gases______. There will be more______ such as floodings, heat waves and droughts.
Action: All governments have a responsibility to ____ and each person should_____.
Para.1 Introduction: Human beings are causing_c_h_a_ng_e_s_in_t_h_e_E_ar_t_h’_s_cl_im_a_t_e______ and it is believed that _g_lo_b_al_w_a_r_m_in_g______ could be one of the biggest___en_v_ir_o_nm__e_nt_a_l p_r_ob_l_em__s ___________ in the 21st centry.
floodings, heat waveson: All governments have a responsibility to __re_d_u_ce_t_h_e_a_m_o_u_nt_o_f_c_ar_b_o_n_d_io_xi_d_e________ and each person should___p_la_y_th_e_ir_p_a_rt_____.
Lesson 1 Global Warming
• Teaching plan for Unit22 lesson1 global warming • Good afternoon, everyone, It’s my great pleasure to be here sharing my lesson with you. The content of my lesson is Unit 22 lesson1 global warming. I’ll begin this lesson from five parts. Analysis of the teaching material, the teaching aims, the important and difficult points, the teaching methods, and the teaching procedures.First, let me talk about the teaching material.
• Step 2 While-reading • 1. First reading (pair work) • a) Ask the students to look at Exercise 4, and then play the cassette twice. • b) Give them a few minutes to read the text and discuss the questions. • c) Go through the questions and ask them to give their answers and explain if necessary.
• Step 4 Grammar: Reporting • 1. Work on Exercise 6. • i ) Ask students to identify the sentences that these statements relate to and circle the reporting verbs. • ii). Ask them to explain the reasons. • Answers: ① to report that ②claim that ③ to believe ④ to insist that ⑤ to warn that
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Unit22Lesson1Global Warming 学案
While Reading
Task1: Understand the title:Can we take the heat?
Task2:Skim the text and match the headings with the according paragraphs.
Paragraph2
Paragraph3
Paragraph4
Paragraph5
Task3:Scanning
Scan the text for these following words and work out their meanings.
1. In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the earth’s climate.
2. Without these naturally occur ring gases, the sun’s rays woul d bounce back into space leaving the Earth cold and impossible to live on.
3. Given this data, it seems that the link between human activities and rising global temperatures is not merely a coincidence.
4. if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth.
5. Some government, for example, the USA’s federal government, express reservations about whether global warming is really caused by
human activities.
6.Experts advocated that each person play their part to save the earth.
Task4: Careful reading
I.Read the text carefully and answer the questions .
1) What is global warming?
2) Are greenhouse gases necessary for life on Earth?
3) By how much has the global average temperature increased in the last 100 years?
4)What human activities are causing global warming?
5)What are the results of global warming?
6)How can we help solve the problem of global warming?
Task5: As a student,what do you think you can do to help reduce greenhouse gases in our daily life?
Task6: Read the text again and fill in the blanks.It is reported that Earth’s climate is being changed and human will face global 1.___________in the21st century.What is global warming ?It refers to an average increase in the Earth’s2. __________that,in turn,leads to climate change. Why is global warming seen as a danger and how is it 3.___________to our lives.The global average temperature has 4. _________by1℉over the last100years because of human activities.If the situation continues,we are 5.__________life on Earth and should face terrible climate changes,serious diseases and bad 6. _______on some industries as well as the rising sea levels.How can we stop these7.____________ from happening 8. ___________all over the world have a
responsibility to 9._________the amount of carbon dioxide produced by their countries.Everyone worldwide can play their part by making small 10. _________in the daily life.。