Unit 2 Grammar and usage 课件-2021-2022学年高中英语牛津译林版（2020）选择性必修第三册

grammar and usage subject clauses B6U1 exploring the rules The Hubble Space Telescope playing a crucial role in the discovery of the mysterious dark energy In 2009 To search for Earth-size planets orbiting other stars FAST To detect communication signals between the stars in the universe To detect communication signals between the stars in the universe Read the passage in part A and find the sentences with subject clauses. That Hubble is based in space allows it to see further than ground-based telescope, … Whether life on other planets does exist is yet to be proved, … It is clear that telescopes are crucial tools for space exploration and that … How much we will learn from the telescopes is merely limited by our imagination. We can use a noun clause as the subject of a sentence. We can use _____________ to introduce a subject clause when the clause is a statement. We can use _____________ to introduce a subject clause when the clause is a yes-no question. We can