Ⅱ卷满分练11 选修7 Unit 3 Under the sea-【赢在微点】2024高考英语大一轮复习顶层设计核心微练word（老高考）人教版

Ⅱ卷满分练11　选修7　Unit 3 限时40分钟7 语法填空　(2023·苏州八校联考)　体裁:说明文　话题:人与环境　难度:★★☆☆☆ 　　There are many reasons why the ocean floor is worth 　1　 (explore). So why is so much of it still unknown? There are several technical challenges that researchers face when visiting the ocean floor.  First, there is the fundamental limitation that humans can􀆳t breathe in water 　2　 fish. Even when divers 　3　 (equip) with special devices to breathe, below 100 feet deep, they can experience nitrogen narcosis, a condition 　4　 makes people feel and appear uncomfortably drunk or confused.  Even if that wasn􀆳t an issue, if you were to go thousands of feet below the surface of the ocean, the pressure is 　5　 extreme that it would crush you to death. Human⁃occupied submersibles enable humans to explore the deep ocean, 　6　 they are expensive and limited in numbers. That􀆳s why most of the deep⁃sea research is done by unmanned vehicles that explore 　7　 (extreme) dangerous environments. However, the ocean􀆳s water 　8　 (it) creates problems because it corrodes (腐蚀) the devices that are meant to explore it.  What􀆳s more, 　9　 (communicate) is difficult under water. Radio frequency waves attenuate (减弱) rapidly under water, so our usual 　10　 (method) of transmitting data are useless. Navigation is also difficult under the ocean, where there is no GPS to guide the way.  答案与解析　 海底值得探索却仍有很多未解之谜,因为还存在许多技术问题。 1.exploring　考查非谓语动词。 此处是sth. be worth doing “值得做某事”的用法, 故填动名词作宾语。 2.like　考查介词。 根据语境“像鱼一样呼吸”可知,此处用介词like。 3.are equipped　考查动词的时态和语态。 when引导的时间状语从句用一般现在时, 主语divers与equip是被动关系,故用一般现在时的被动语态, 故填are equipped。 4.that/which　考查定语从句。 该句是限制性定语从句, 先行词是condition, 指物,且从句中缺主语,故用关系代词that/which引导定语从句。 5.so　考查状语从句。 根据空后的extreme that结合句意“水压太大会把人压死”可知,空处填so,构成so ... that ... 句式。 6.but　考查连词。 空前的“水下潜水器使人类能探索深海”和“价格昂贵数量有限”是转折关系, 故填连词but。 7.extremely　考查词形转换。 空处修饰形容词dangerous, 应用副词, 填extremely。 8.itself　考查代词。 空处作主语water的同位语, 应用反身代词, 故填itself。 9.communication　考查词形转换。 空处作主语, 应用名词, 故填communication。 10.methods　考查名词的数。 method是可数名词, 根据该句谓