2019人教版選修七Unit 2 《Robots》word教案5.doc
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2019人教版選修七Unit 2 《Robots》word教案5 Teaching goals 1.Learn some useful words,expressions and sentence structures in the passage. explanation,junior,navy,talent,chapter,divorce It was when Asimov was eleven years old that his talent for writing became obvious. Expressions of supposition and belief. 2.Learn to write a summary of Asimovs life. Teaching procedures Step 1 Lead-in First,present a photo of Isaac Asimov and tell students something about him. Background information: He is a Russian-born American writer. He has written popular works on science and the history of science,as well as a number of science fiction classics,including I,Robot(1950)and the Foundation trilogy(1951-1953). One of his famous quotations is “I write for the same reason I breathe—because if I didnt,I would die.” Next,tell students to read his biography and learn more about him. When reading,please pay more attention to the timeline. Step 2 Reading Read about Isaac Asimov and plete the timeline of the events in his life.(The timeline will help students to remember the events in his life.) Date Event 1920 Born in Russia. 1922 1923 ______________________________________________ Parents bought a candy store. 1929 ________________________________________________________________________ Mother had her third child. Started to take himself seriously as a writer. 1939 Gained masters degree in chemistry. 1942[來源:學.科.網(wǎng)Z.X.X.K] Finished working in the candy store. ___________________________________ 1942-1945 Got his PhD in chemistry. Became a biochemistry teacher,Boston University School of Medicine. 1950 Published his first novel. __________________________________Developed three laws for robots. 1951-1953 Published the Foundation trilogy and won an award for it. Published his first science book. Became a full-time writer. 1973 Divorced his first wife. _________________________________________ Had a blood transfusion. Became infected with HIV. 1992 Suggested answers: Date Event 1920 Born in Russia. 1922 Sister born. 1923 Moved with family to New York. Parents bought a candy store. 1929 Started working in the candy store. Mother had her third child. 1931 Started to take himself seriously as a writer. 1939 Began having stories published in science fiction magazines. 1941 Gained masters degree in chemistry. 1942 Finished working in the candy store. Got married. 1942-1945 Worked as a junior chemist,Philadelphia Navy Yard. 1948 Got his PhD in chemistry. 1949 Became a biochemistry teacher,Boston University School of Medicine. 1950 Published his first novel. Published I,Robot.Developed three laws for robots. 1951-1953 Published the Foundation trilogy and won an award for it. 1953 Published his first science book. 1958 Became a full-time writer. 1973 Divorced his first wife. Married for a second time. 1983 Had a blood transfusion.Became infected with HIV. 1992 Died in New York. Step 3 Discussion First,ask students to think of what the other two laws for robots might be. Three laws for robots: 1.A robot must not injure human beings or allow them to be injured., 2.A robot must obey the orders given to it by human beings (as long as human beings are not injured)., 3.A robot must protect its own existence (as long as human beings are not injured;and as long as the robot does not disobey human beings Next,in groups,discuss Asimovs three laws for robots and exchange their opinions with each other.(Several minutes later,ask some students to present their opinions to the rest of the class.) A sample of opinions Opinions_for_the_three_laws Robots are tools for humanity. Without the three rules,they would bee a danger to human beings. Without the three rules,perhaps they will kill us. Robots,so far,are strong. Robots have fast putational brains,and they might not have the capacity to understand things,but if they ever do,theyll likely be better than us at it. If we dont put laws,or rules,or mechanisms in place to ensure that we dont create something that can destroy us,wed be running a careless risk of destroying ourselves by negligence or omission,wouldnt we? Opinions_against_the_three_laws Without the three laws,robots would eventually bee more intelligent and physically stronger than their human creators. Rather than guiding and adjusting the robot towards good,ethical behavior,the Three Laws act as a barrier to freedom,creating a free-will prison,an apt metaphor because,like the prisoner in jail,the robot is confined to the behavioural steel and concrete walls of its mind. To imagine what this would like,think back to your childhood. At some point,you wanted something like a toy or piece of candy that your parents denied you .How did that make you feel?Probably frustrated,angry,and trapped. Eventually you grew out of that because you understood the role of your parents better,but Three Laws robots dont get to grow up. Their parents,the Three Laws,are always there,no matter how mature a robot is,saying “no” to certain thoughts,engendering those same feelings you had as a child when your parents said “no”.Certainly no one deserves to be put in this situation forever;otherwise,robots might bee depressed and wish for their own death (only,because of the Third Law,they probably cant suicide).And perhaps the greatest sin anyone can mit is to create a being,human or robot,that wishes it didnt exist. Step 4 Writing First,look back at the timeline of Asimovs life. Next,ask students to work in groups to underline the most important parts of his life that made him a great writer of science fiction. Then it can serve as the outline of a summary. Finally,write a profile for Isaac Asimov.(Several minutes later,present their work and correct the mistakes if there are any. Then show a sample to students.) The sample: Isaac Asimov,Writer/Chemist, Born:2 January 1920 ,Birthplace:Petrovichi,USSR,Died:6 April 1992 (AIDS), Best known as:Prolific writer of popular science and science fiction ,Isaac Asimov was born in the former Soviet Union,but grew up in Brooklyn,New York. He taught biochemistry at Boston University until he retired in 1958 to bee a full-time writer. Asimov had been publishing short stories since the late 1930s,and in 1952 published his first novel. The author of the classic I,Robot series and the Foundation trilogy,Asimov wrote more than 400 books and won every major science fiction award. He also wrote popular books and essays on science and technology,earning him the nickname “The Great Explainer”. 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