2. let Ss work in pairs, and discuss the advantages and disadvantages of the cloning, nuclear energy , computers, space flights.
2. That information can help students get ideas for advantages and disadvantages.
Cloning: people that look the same; making people and animals which are in danger in the world; help people who lost an ear/ eye/leg…
Nuclear energy: doesn’t pollute the environment; very dangerous waste; make all the electricity society needs.
Space flights: understand the outer space; very expensive; shows how far a country has developed.
Step IV Practice
Finish the exercises “Listening” “Talking” in Workbook
Homework
Finish off the exercise “Practising” in the Workbook.（教案和教学设计）课件高一英语下：Unit 16 Scientists at work教案1教育资源
第22课时：用计算器进行数的简单运算
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第22课时：用计算器进行数的简单运算
(中国教育体制改革)教学方案第22课时：用计算器进行数的简单运算