2020-2021学年 人教版（2019） 高中英语 必修第三册 Unit 1 grammar 定语从句难题提高练习 含答案

定语从句复习 一．单句语法填空 1. While scholars of his time often lost themselves in Philosophical（哲学的） debates on life and universe, he preferred to play Go _________he believed was full of hows and whys of life. 2. Researchers at the Massachusetts’ University are creating the first robot _______can constantly change its shape according to task it has to do. 3. The ability to realize one’s mistakes and learn from them is what matters, _______is also the main purpose of education. 4. Fix a timer（定时器）in some of your rooms _________turns lights on and off during different time of the day. 5. It has set an example to other museums in our country, most of ______ seem to be still living in days gone by. 6. According to statistics from the organizer, 157,326 visitors attended the festival, many of _______were hanfu-wearing enthusiasts, called “tongpao”. 7. Chang’e 4 will make astronomical observations and examine the structure and mineral composition of the ground above and below the surface, _______rese