2022届高考英语专题复习--时事语法填空 中国科学家建议用火箭使小行星改变航向 附答案解析.docxVIP

语法填空 中国科学家建议用火箭使小行星改变航向 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Chinese researchers say they believe a group of rockets could?be used?___1___(change)?the path of asteroids(小行星)?that might pass near Earth. Most experts agree that there is only a small likelihood that a large asteroid or other space object will crash into Earth and cause great destruction. However, many organizations do recognize the real risk of such?___2___?event. For example, the U.S. space agency NASA and its international partners?___3___(continuous)?search the skies for what?___4___(scientist)?call near-Earth objects (NEOs). Such objects include asteroids and comets(彗星)?that come within 50 million kilometers of Earths orbit. The Chinese research was based on defending against a specific asteroid, Bennu,?___5___?orbits the sun. Bennu is about a half-kilometer wide. It?___6___(consider)?a near-Earth asteroid. NASA says Bennu reaches its?___7___(close)?distance to Earth every six years. Chinas Long March 5 rockets are a?___8___(centre)?part of the countrys space program. They have been used to launch space station elements and carry spacecraft to the Moon and Mars. China has successfully launched six Long March 5 rockets since 2016. Alan Fitzsimmons is a professor of astrophysics in Northern Ireland. He finds the idea of using rockets to act?___9___?an asteroid deflector(偏向器)?a rather nice concept. He added, however, that the actual?___10___(operate)?of such a mission needs to be studied further. 1.to change 考查非谓语。be used to do...被用来做……。动词不定式作目的状语。 2.an 考查冠词。表示“一”，用不定冠词，元音前用an。 3.continuously 考查词类转换。修饰动词search，用副词作状语。 4.scientists 考查名词复数。谓语动词call为一般现在时但没有加s，可知主语是复数。 5.which 考查定语从句。还原从句：Bennu orbits the sun. 用which引导非限制定语从句，指代先行词Bennu，并在从句中作主语。 6.is considered 考查被动语态。Bennu被认为是近地小行星。 7.closest 考查比较等级。根据句意“美国航天局说本努每隔六年到达离地球最近的距离”，用最高级closest ，表示“最近的”。 8.central考查词类转换。central part核心部分。形容词作定语。 9.as考查介词。act as 充当。 10.operation考查词类转换。名词作主语。