2019-2020学年人教版高中英语选修7同课异构课件：Unit 2 Robots 单元小节同课异构（5）-302edu教育资源网

1950 1951-1953

Became a biochemistry teacher, Boston University School of Medicine.

Published his first novel. Developed three laws for robots.

Published “I, Robot”

Published “The Foundation Trilogy” and won an award for it.

Published first science book.

Became a full-time writer.

1949

1953

1958

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