Unit 2 Grammar and usage 课件-2022-2023学年牛津译林版（2020）高中英语选择性必修第三册

Grammar and usage Subject clauses Unit 2 Out of this world Hubble Space Telescope Lead-in FAST Lead-in What is the Hubble Space Telescope? The Hubble Space Telescope is the largest astronomical telescope ever sent into space. It was launched in 1990. The telescope is to provide astronomers with fascinating new information on the state of the universe. Some of its breakthroughs include the discovery of the unexplained phenomenon of dark energy, evidence of black holes and observations of stars in the last stages of their lives. Lead-in What is FAST? Read the article on page 20 and fill in the following table. A Exploring the rules The use of telescopes to explore space Time Breakthroughs Use In 1990 (1) ______________ (2) ____________________ (3) __________ The Kepler Telescope (4)____________________ (5) ___________ (6) ________________ To detect communication signals between the stars in the universe Read the article on page 20 and fill in the following table. A Exploring the rules The use of telescopes to explore space Time Breakthroughs Use In 1990 (1) ______________ (2) _______________________ 1. The Hubble Space Telescope 2. To see further than ground-based telescopes; to play a crucial role in the discovery of the mysterious dark energy. Read the article on page 20 and fill in the following table. A Exploring the rules The use of telescopes to explore space Time Breakthroughs Use (3) ____________ The Kepler Telescope (4)_________________________ 3. In 2009 4. To search for Earth-size planets orbiting other stars. Read the article on page 20 and fill in the following table. A Exploring the rules The use of telescopes to explore space Time Breakthroughs Use (5) ______________ (6) ___________________ To detect communication signals between the stars in the universe In recent years FAST Find the sentences with subject clauses in the article and fill in the box of part A on page 20. A Exploring the rules That Hubble is based in spac