Unit 2 Out of this world Grammar and Usage & Integrated Skills 课件-2023-2024学年高中英语牛津译林版（2020）选择性必修第三册

Unit 2 Out of this world Grammar and Usage & Integrated Skills Vocabulary 1. crucial be crucial to/for...对……至关重要 play a crucial role/part in...在……中起至关重要的作用 It is crucial that… 至关重要的是…… 练习：This last point is________. crucial 2. comprise be comprised of.…包括/包含……，由……组成或构成 练习：These objects __________ functions and data of the system. comprise 3. foundation lay a (firm/solid) foundation for… 为……打下（坚实的）基础 found vt.创建，创办；兴建（城镇或国家）；把……建立在。 be founded on… 建立在……基础上（近义词组为be based on） founder n.创办者，发起人 练习：It laid solid ___________ for the development of the local area. foundation 4. plain to see 相当于clear 或obvious。 练习：It's _____ to see that students should get well prepared for their future. plain Lead-in Do you know what they are? Galileo telescope FAST (Five-hundred-meter Aperture Spherical Telescope) 500米口径球面射电望远镜，也被称为“中国天眼” Let’s watch a video of telescope! Reading Read the article on page 20 and fill in the table. The use of telescopes to explore space Time Breakthroughs Use In 1990 The Kepler Space Telescope In recent years To detect communication signals between the stars in the universe The Hubble Space Telescope To see further than ground-based telescopes; to play a crucial role in the discovery of the mysterious dark energy In 2009 To search for Earth-size planets orbiting other stars FAST Grammar What is subject? 主语即“动作的发出者”（主谓宾结构中）或者“表述的对象”（主系表结构中），一般放在句首，有时也放在中间或者句尾。充当主语的可以是名词、代词；也可以是短语、不定式；甚至可以是整个句子。 1).名词/代词/数词做主语 2).不定式/名词化短语做主语 3).从句做主语 4). “it”充当形式主语，真正的主语则放在句尾 Find the sentences with subject clauses and fill the box. 1. That Hubble is based in space allows it to see further than ground-based telescopes, … 2. Whether life on other planets does exist is yet to be proved, but the signs are promising... 3. It is clear that telescopes are crucial tools for space exploration and that developing the required technology will help astronomers all over the world make exciting discoveries. 4. How much we will learn from the telescopes is merely limite