北师大版高中英语选修7 Unit20 Warm up 精品课件

1、algebrageometrybacteriasoftwaremassradiationradiumradioactiveshuttlecrewassisttechnicalrecreation n. 代数代数 n. 几何几何 n. 细菌细菌 n. 软件软件 n. 质量质量 n. 放射；辐射放射；辐射 n. 镭镭adj. 放射性的放射性的 n. 航天飞机航天飞机 n. 全体机组人员全体机组人员 vt. 帮助；协助帮助；协助adj. 技术上的技术上的 n. 消遣；娱乐消遣；娱乐Words reviewobjectiveTo learn to talk about new frontiers wi

2、th the words:bacteria radiation technical.The term New Frontier was used by liberal Democratic presidential candidate John F. Kennedy in his acceptance speech in the 1960 United States presidential election to the Democratic National Convention at the Los Angeles Memorial Coliseum as the Democratic

3、slogan to inspire America to support him. The phrase developed into a label for his administrations domestic and foreign programs. Now people use “New Frontier ” to refer to recent developments in topical areas of research in contemporary world. Do you know the term “New Frontier”?What does it refer

4、 to?Lets see a video about the new frontier in solar energy. biology physics information technology astronomy1 A Radio Telescope2 An Atom3 A Microscope4 A Microchip5 DNAI Match the branches of science with the numbered objects.1p19Can you think of any other areas of science?eg. chemistry, algebra, g

5、eometryWhich areas of science do you think are the most interesting? Why?II Match the Key Words with the four branches of the science in Exercise 1. Add more words. . Answers : Biology : bacteriaPhysics : energy, gravity, mass, radiation, radium, radioactiveAstronomy : black hole, deep space, light

6、year, universe, solar systemInformation technology : artificial intelligence, software development, data processing, search engine2p19III Listen to four extracts and identify these different programmes. Answers: 1. news 2. interview 3. documentary 4. quiz 3p191. How has science affected our lives in the last two hundred years? Think about : communication, entertainment and recreation, housing, medicine, transport, war, work 2. Which of the changes in our lives have not been beneficial? Why?3. In what areas d