北师大版英语（2019新版）必修第二册 Unit 5 Huamns and nature viewing workshop 课件（共12张PPT）.pptx

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关键词：: 北师大版英语2019新版必修第二册 Unit Huamns and nature viewing workshop 课件共12张PPT 北师大英语 2019 新版必修第二课件 12 PPT 下载 _必修第二册_北师大版（2019）_英语_高中

资源描述：: 1、Unit focus 1. To read and talk about the universe. 2. To view for understanding . 3. To summarize information. When it comes to universe , what do you know When it comes to universe , what do you know about it ? about it ? Brainstorming planetplanet s s infiniteneinfinitene ssss vastnessvastness UNI
2、VERSE starstar galaxygalaxy How big is the universe ? ACTIVATE AND SHARE 1. 1. Q Quiz about the universe? .uiz about the universe? . Complete with the right numbers. 13.8 billion 27.5billion 46 billion113.8 billion 27.5billion 46 billion1 1. The universe is about _ years old. 2. The observable unive
3、rse is about _light years across in diameter. 3. Today the distant objects like stars that we can observe are a bit more than_ light years away. View and learn 2. Quiz 2. Quiz about the universe? .about the universe? . Watch the first part of the video. Check your predictions from the Activity 1. 13
4、.8 billion 27.5billion 46 billion13.8 billion 27.5billion 46 billion 1.The universe is about _ years old. 2.The observable universe is about _light years across in diameter. 3.Today the distant objects like stars that we can observe are a bit more than_ light years away. 13.8billio n 93billion 46bil
5、lion View and learn 3. Questions 3. Questions 1). How big is it? Observable UniverseObservable Universe Whole UniverseWhole Universe The observable universe is about 93 billion light years across in diameter. Infinite. View and learn Questions Questions 2). Is there an edge ? Observable UniverseObse
6、rvable Universe Whole UniverseWhole Universe Yes. Temporal edge. No. View and learn Questions Questions 3). Is there a centre ? Observable UniverseObservable Universe Whole UniverseWhole Universe Yes. Earth / you. No. View and learn Questions Questions 4). Is it getting bigger ? Observable UniverseO
7、bservable Universe Whole UniverseWhole Universe Yes. Yes. 4 Is it getting bigger? Pair Work 1.What is the Earth compared to? Is the comparison useful in understanding the infiniteness of the universe? 2.What methods does the presenter use to enable viewers to understand this piece of knowledge in physics? Express Yourself What have you learnt about the size of the universe? Find more information online and share with the class.

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