辽宁省部分地区2021-2022学年高二下学期期末考试英语汇编：七选五

辽宁省部分市 2021-2022学年高二下学期期末考试英语试题解析版汇编 七选五 辽宁省大连市2021-2022学年高二下学期期末考试英语试题 第二节（共5小题；每小题2.5分，满分12.5分） 阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。 Like space exploration, deep sea exploration requires new instruments and technology. The ocean depths are cold and dark and are under high pressure.____16____ Finding the Bottom In the 8th century, lead weights which were attached to ropes are dropped to measure water depth. Beginning in the19th century, researchers used wire rather than rope to take sounding measurements. In the modern era, acoustic (声学) depth measurement devices are widely used.____17____. Human Exploration Once people knew where the sea floor was, ____18____ Science has progressed way beyond the diving bell, a huge bottle containing air that could be lowered into the water. The first submarine was built by Cornelius Drebbel in 1623.The first underwater breathing device was invented in 1865. In 1964, Alvin was tested. Alvin was built by General Mills and operated by the US Navy. Alvin allowed three people to remain underwater for as long as nine hours and as deep as 14,800 feet. Modern submarines can travel as deep as 20,000 feet. Robotic Exploration While humans have visited the bottom of the Mariana Trench, ____19____. Further exploration relies on modern robotic systems. Remotely operated vehicles (ROVs) are controlled by researchers on a ship. ROVs typically carry cameras, manipulator (操作) arms, sonar equipment, and sample containers. Autonomous underwater vehicles (AUVs) operate without human control.____20____. Some vehicles, such as the Nereus, act as either a ROV or AUV. A. But diving deep never ends B. Humans are curious about the sea C. they have made a lot of discoveries D. they wanted to visit and examine it E. the trips only allowed limited exploration F. Basically, they produce a loud sound and listen for echoes to measure distance G. They generate maps, measure temperature and chemicals, and take photographs 辽宁省丹东市2021-2022学年高二下学期期末教学质量监测英语试