必修第二册 Unit 5 Humans And Nature A组-【导与练】2024高考英语一轮复习高中总复习第1轮能力提升题组训练（新教材，北师大版）

UNIT 5　HUMANS AND NATURE A组 Ⅰ.阅读 A (2022广西百色教育科学研究所高三期末) The Beijing 2022 Olympics earns high marks for sustainable artificial snow.Kit McConnell,sports director of the International Olympic Committee,said the participants believe the artificial snow is outstanding.“The focus is on doing this in a sustainable way,and also ensuring the athletes have an outstanding field of play on which to compete at the Olympic level,” McConnell said. Artificial snow gives the courses a better and more stable quality. Different from natural snow,certain qualities including particle size,the proportion of water content,and the hardness can be easily changed in creating the artificial snow,to meet the qualities and needs of different competition venues.Natural snow with a very low density cannot be used for competitions as it falls off more easily and brings safety risks. Though the artificial snow has been used for the Beijing 2022 Olympics,a few years ago China had barely any experience in making artificial snow for the Games.Wang Feiteng,a member of the snow-making team of experts for Beijing 2022,developed a localised snow production and service technology that is suitable to China’s climate with other team members after three years of experiments.The success breaks the key snow-making technology blockade. Following the Winter Games,artificial snow technology can also be useful. Regulating the temperature within a specific range can maintain the growth of crops in the areas where global warming has had an impact.In high-altitude areas, the application of artificial snow can not only reduce the melting process of snow,but also control water flow,preventing floods and droughts from happening. 1.What does the underlined word “this” in Paragraph 1 refer to? A.Producing man-made snow. B.Designing ski race tracks. C.Ensuring participants get enough training. D.Helping athletes adapt to China’s climate. 2.Natural snow is not the best for the Beijing 2022 Olympics because 　　　.  A.it is t