Unit4GlobalwarmingLanguagePoints课件人教版选修6.ppt

;Language Points;1.matter 要紧、有关系，= be important It doesn’t matter if I miss the train because there’s another one in ten minutes. It is what you do rather than what you say that matters.; compare… to 也可用compare… with 用于比较不同事物. Their prices are low compared to those in other shops. 用法比较: compare A with B 把… …和 … …相比。 Researchers compared living conditions in London with those in other cities. compare A to B 把… …比成 … …，比较两者的相似之处。 Poets like to compare death to sleep.;1)The town has changed a lot _____________ what it was before. 2) We often _________young people _____ the rising sun. 3) ________ this ____ that , and you’ll see which is better.;How has this come about and does it matter? 2. 你能告诉我事情是怎样发生的吗？ 3. With the use of electricity, great changes have come about.; Difficult Sentences;常用结构：;There is some doubt whether John will come on time.;____ was no ____ that he was a fine scholar. A. There; doubt B. It; doubt C. There; wonder D. It; question 2. ____ no knowing what he could do. He might get a job tomorrow. He might stay out of work for weeks. A. There is B. It is C. There was D. It was; Fossil fuel:矿物燃料。 Ancient animal and plant material below the surface of the earth with a high carbon content, such as coal,oil and natural gas, which can be burnt to produce energy. Also known as non-renewable energy because once they are used they have gone forever; they cannot be renewed.;1.Some byproducts of this progress are called “greenhouse” gases, the most important one being carbon dioxide.;2.This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth.;3.quantity n.(u)数量 He prefers quantity to quality when food is concerned. 词义拓展 quantity n.(c )数量 Police found a large quantity of illegal d