1、,北师大版 高二 Module 8 Unit 22,Lesson 1 Global Warming,Look at the pictures and what do you know about global warming.,What effect will global warming have on the sea and the living things in the sea?,What will happen with global warming?,Will global warming affect the life of North Polar Bear ?,What wil
2、l happen to penguins because of global warming ?,Para 1 Para 2 Para 3 Para 4 Para 5,What can we do to reduce global warming What is global warming and how it works Reasons and its effects Draw readers attention to the topic by asking questions-introducing the consequence of global warming,Listen to
3、the tape of the text and match the heads with the paragraphs.,1) What is global warming? Global warming is an average increase in the Earths atmosphere. 2) What human activities are causing global warming ? Industry, agriculture, transportation, cutting down of trees and the burning of fuels are cau
4、sing global warming.,3) By how much has the global average temperature increased in the last 100 years? By 1F (One degree Fahrenheit) 4) Are greenhouse gases necessary for life on Earth?Yes, they are. Because they trap heat in the atmosphere of the Earth. Otherwise the Earth would be cold and unsuit
5、able for life.,5) What are the would-be consequences of global warming? It will cause more frequent floods, heat waves and drought. And serious diseases will spread and industries that rely on nature such as fishing will be badly affected. It will cause the polar ice to melt, raising sea levels, and
6、 flooding many islands and cities.,6) How can individuals help solve the problem of global warming? As individuals 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 turning off the lights
7、when we leave the room.,Fill in the blanks about the text.,Global warming means an average increase in the Earths 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.,factories,human
8、 beings,They also think global warming is one of the biggest environmental problems in the 21st century. The Earths temperature is controlled by _ _like carbon dioxide which _ heat from the sun in the Earths atmosphere. Many experts believe global warming is mainly caused,greenhouse,gases,trap,by hu
9、man _. Over the last 100 years , the global average temperature has increased _ and if human beings continue to pump _ gases into the Earths atmosphere, the global warming will cause dramatic climate changes like more frequent floods, _ and,by 1F,greenhouse,heat waves,activities,Droughts. There are
10、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,raised,fishing,release,attention,small changes like _ public tran
11、sport, _, using low-flow _, buying energy-efficient _ using recycled paper or _ lights can have _ on the future of the Earth .,taking,recycling,shower heads,light bulbs,switching off,great effect,Language points,Scientists have reported that human beings are causing changes in the Earths climate-som
12、ething _ seen as _.,previously,beyond our control,previously,in the past,beyond 在那边/超出的范围,This book on literature is beyond our reach. This bicycle is beyond repair.,他的忠诚是毋庸置疑的.,His honesty is beyond question.,They claim that the gases pumped into the Earths atmosphere by our factories and vehicles
13、have been speeding up the process of global warming and thereby affecting our climate. What is the function of the underlined part “pumped ”?,It is used as attributive (定语). speed up 反义: slow down affect have a bad effect on sth.,Global warming _ an average increase in the Earths temperature that, i
14、n turn, _ climate change.,refers to,leads to,refer to,提到,谈到,Dont worry. I dont think the manager referred to you. Promise me not to refer to the matter again.,lead to,1. 通向,This road leads to the library.,2. lead to=result in=bring about,The fight led to their divorce.,increase by 增加了 / increase to增
15、加到 The temperature of the room is increased by 12C, that is, the temperature of the room is increased to 29C. Cf : reduce by/ reduceto rise by / rise to,insist: (1) urge in a forcible manner 坚决主张, 坚决要求 e.g. He insisted I (should) go with them. =He insisted on my going with them.,(1) allow to go; set
16、 free 释放When coal is burning, it will release a lot of carbon dioxide into the atmosphere.,(2) allow (news/films )to to be known or published 发布,发行The news has been released.,release:,(1) the property of things which can be measured, e.g. size, weight, number. 物质的属性,量 e.g. I prefer quality to quanti
17、ty.,quantity:,(2) amount, sum or number 数量 e.g. Weve had quantities of rain this summer. 今年夏天雨下得很多。He buys things in quantity/ in large quantities. 他总是大宗采购东西。,pin sth. on somebody 把某事归罪于某人,汤姆是无辜的,他们只是想把责任推给他。,Tom is innocent. They just tried topin the blame on him.,play ones part 参与, 起作用,Women play
18、an important part in the society.,add up 加起来total up / add up to =total up to 加起来为 He added up the numbers and the numbers added up to 233.,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
19、 up,Exercises,1. Water was _ the fish pond from the river. 2. We all need to _ to finish in time! 3. There is nothing more we can do. The situation is now _ our _.,pumped into,speed up,beyond,control,4. _ the accident, she is now afraid of water. 5. The scientist _ global warming at least three time
20、s in his speech. 6. The factory was producing greenhouse gases _ .,As a result of,referred to,in large quantities,Grammar,1. Human beings are causing changes in the Earths climate. To report that,What verbs are used in the text to report these statements ?,2. Gases pumped into the Earths atmosphere
21、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 i
22、ncluding more frequent floods, heat waves, and droughts. To warn that,Ex 7: Look at these sentences from the text and explain why the underlined verbs are not the same tense as the reporting verbs.,Recent reports warned that global warming will cause terrible climate changes.,2. Scientists found tha
23、t the temperature of the Earth is controlled by greenhouse gases.,Answer : 1) because it is in the future 2) because it is a general truth .,Ex 8. Match the sentences with appropriate reporting verbs from the list. Then write the reported sentences.,admit/report/forbid/ask/invite/order/suggest/threa
24、ten,Well close credit lines if you dont reduce the amount of carbon dioxide you produce .,2. OK, youre right, some poisonous chemicals did escape into the atmosphere. 3. Why dont you drop in tonight ahead of your meeting? 4. Stand up immediately! 5. You cant use the dictionaries during the test.,6.
25、Shall we have pancakes with honey? 7. Is the bus service running according to the timetable today? 8. The fire has luckily caused no loss of life.,1. They threatened to close the credit lines if we dont reduce the carbon dioxide we produce. 2. They admitted that some poisonous chemicals had escaped
26、into the atmosphere.,The answers:,3. He/ She/ They invited me to drop in tonight. 4. He/ She/They ordered me to stand up immediately. 5. He forbid me to use the dictionaries during the test.,6. She/He/ They suggested having pancakes with honey. 7. He asked if the bus service running according to the timetable today. 8. He reported that the fire had luckily caused no loss of life.,
