Lesson1GlobalWarming.docx

Guided learning plan Unit22 Lesson1 Global WarmingTask1:word studyWork out the meaning of the following words according to the sentences they appear. consensus, bounce, agriculture, coincidence, condemn, reservation, sacrifice, advocate1. In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the earths climate2. Without these naturally occurring gases, the suns 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. if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth5. Some government, for example, the USAs 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.Match the Key Words with their Chinese meanings.1.consensus A.反弹2.bounce B.农业 3.agriculture C.巧合4.coincidence D.一致的意见5.condemn E.保护6.reservation F.宣判死刑7.sacrifice G.主张，提倡8.advocate . H.牺牲Task2：Skimming:What is global warming?Gist reading : Skim the text and match the heads with the paragraphs.1.Draw readers attention to the topic by asking questions. Paragraph12.What should human beings do. Paragraph23.What is global warming. Paragraph34.Consequences of global warming. Paragraph45. What causes global warming Paragraph5Use one word to conclude each paragraph.Tasking3：Careful reading(1)Para.1Introduction: Human beings are causing_ and it is believed that _ could be one of the biggest_ in the 21st century.Para.2Definition: Global warming refers to_ in the Earths temperature that, in turn,_ climate change.Para.3Causes:Many experts insist that the blame for this global warming can mostly_. Para.4Consequences: If we continue to produce greenhouse gases_. There will be more_ such as floodings, heat waves and droughts.Para.5Action: All governments have a responsibility to _ and each person should_.Task4：Careful reading(2)Read the text and answer the following questions.1. Are greenhouse gases necessary for life on Earth?2. What human activities are causing global warming?3. By how much has the global average temperature increased in the last 100 years?Task5:Group work:Have a discussionHow can we help solve the problem of global warming?(What will you do every day to help reduce greenhouse gases?)Task6：summaryGlobal warming is _ in the Earths temperature, which in turn leads to _. It is caused by _,for example the increased industry, agriculture, _ of forests , the increase in transport and _ of fuels. It will have severe consequences , such as frequent flooding, heat waves, less fish, serious diseases, _ of the polar ice and _ of sea levels. What can we do to save the earth? On one hand , governments should reduce the amount of _ produced by their countries. On the other hand, each person should make small changes like using _ shower heads, taking public transports, recycling, buying energy-saving bulbs, _ lights when