Unit 2 单元短文首字母填空训练-2022-2023学年九年级英语上册单元重难点易错题精练（牛津译林版）

Unit 2 Colours 单元短文首字母填空训练 （2021·江苏·南京师范大学附属中学树人学校九年级阶段练习）根据短文内容和首字母提示，填写所缺单词。 One of the most common questions that scientists find themselves asking is “Is there life on other planets?” Since the first famously UFO sighting in 1947, the i____1____ of life on another planet has been debated(争论) almost non-stop. The subject has been used in many TV programs, Such as The X-Files, and also in many films w____2____ include Mars Attacks and the Men in Black. Scientists have come up with many new ideas and ways of trying to e____3____ prove or disprove the existence(存在) of life elsewhere. Mars is a very s____4____ planet to earth in relation to size and atmosphere. So it seems like the most probable p____5____ to search for life. At the end of the 19th century, an American named Percival Lowell b____6____ himself an observatory(观测站) so that it was possible for him to study Mars. Looking through his telescope, Lowell became s____7____ that he could see a network of man-made rivers. This led