必修③ Unit 4 课下主题训练 地球与宇宙奥秘探索（Word练习）-【新高考方案】2024高考英语一轮复习（老教材 新高考 人教版）

第1页共7页 画学科网书城巴 品牌书店·知名教辅·正版资源 b.zxxk.com 您身边的互联网+教辅专家 课下主题训练 地球与宇宙奥秘探索 1.阅读理解 The lander(着陆器)carrying China's first Mars rover(探测车)successfully touched down on the red planet early Saturday morning Beijing Time.It is the first time that China has landed a probe on a planet other than Earth. Tianwen-1,consisting of an orbiter,a lander and a rover,was launched from the Wenchang Spacecraft Launch Site on the coast of southern China's island province of Hainan on July 23,2020.This is the first step in China's planetary exploration of the solar system,with the purpose of completing orbiting,landing and roving on the red planet in one mission The name Tianwen,meaning "questions to Heaven",comes from a poem written by the ancient Chinese poet Qu Yuan (about 340-278 BC).China's first Mars rover is named Zhurong after the god of fire in ancient Chinese mythology,which echoes with the Chinese name of the red planet:Huoxing (the planet of fire). Tianwen-1 was launched via a Long March-5 rocket,China's largest launch vehicle. Tianwen-1 has been traveling in space for nearly 10 months.It has carried out four orbital corrections and a deep-space maneuver.It had flown 475 million km and was 192 million km from Earth when it reached Mars orbit. The craft's plummet(骤降)through the Martian(火星的)atmosphere,.lasting about nine minutes,was extremely complicated with no ground control,and had to be performed by the spacecraft autonomously. "Such a challenging attempt is characterized by a succession of complex activities that must be conducted completely by the spacecraft within a very short period of time,"said Geng Yan,an official with the Lunar Exploration and Space Program Center of the CNSA. "What added to the difficulties was that we don't know much about the Martian atmosphere, which brought a lot of uncertainties to the mission.Each step had only one chance,and the actions were closely linked.If there had been any flaw,the landing would have failed." 语篇解读：本文是一篇说明文，主要介绍了天问一号探测器成功着陆