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

Do you know what they are? 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” Galileo telescope Read the article on page 20 and fill in the following table. The use of telescopes to explore space Time Breakthroughs Use In 1990 In recent years Q: What allows Hubble to see further than ground-based telescopes? That Hubble is based in space allows it to see further than ground-based telescopes. Subject clauses (主语从句) 在复合句中，如作主语的是一个从句，该从句被称为主语从句。主语从句须用陈述语序，单个从句做主语，主句谓语动词一般用单数。 谓 Below is a newspaper feature article on the use of telescopes to explore space. Find the sentences with subject clauses. ( ) ( ) ( ) ( ) 1. That Hubble is based in space al