高二英语师大版选修七-Unit 21 Human Biology (6)-2课件.pptx

选修七 Unit 21 Human Biology (6)高二年级 英语Communication WorkshopWriting: A Discursive EssayObjectives At the end of this lesson, you will be able to summarize the writer’s opinion and figure out how the writer defends her point of view;write a convincing discursive paragraph.Warm-upWhat does the man in a coma look like? He is kept alive on life support machines (呼吸机). He looks like being asleep, remains unconscious (无意识的) and forms no connection with other people. If you were a patient in a coma, would you rather live on in this state or be offered a mercy killing? And why?Lead-inOn February 25, 1990, 26-year-old Terri Schiavo fell into a coma because of severe brain damage and was then on life support machines, connected to a feeding tube (食管) for 15 years.On March 18, 2005, her feeding tube was removed at her husband’s request and with the court’s permission. On March 31, 2005, Terri died. Should people in comas be kept on life support machines?The recent case of an American woman, Terri Schiavo, whose husband won a legal battle to have her taken off life support machines after she spent 15 years in a coma-like state, has exposed the many sensitive legal and medical issues that surround the care of coma patients. Even though 15 years had passed, Terri’s parents still believed that her coma was only temporary. Her husband disagreed and said that Terri wouldnot have wanted to live on in this state. The court gave their approval for the life support machines to be turned off and while this ruling left Terri’s parents feeling numb and others claiming that life is sacred, which no one has the right to end, many would say it was the right thing to do for Terri.Terri had fallen into a coma in 1990 when a heart attack robbed her brain of oxygen causing permanent harm. People can also fall into comas due to terminal illnesses like cancer, and head injuries, for example motorbike accidents when no helmet is worn. Coma patients may seem to be asleep all the time or they may sleep,