单元综合测评(二)(时间：100分钟；满分：120分).阅读理解(共15小题；每小题2分，满分30分)ARobert Ballard was born in 1942. From an early age, he loved the sea. Ballard grew up in Southern California. He spent his free time at the beach near his home. He enjoyed fishing and swimming. He even learned to dive.When Ballard wasnt at the ocean, he loved reading about it. At age 10, he read Twenty Thousand Leagues Under the Sea, a book which describes the undersea adventures of Captain Nemo. Ballard decided he wanted to be like Captain Nemo when he grew up. His parents helped him follow his dream.Ballard was a hardworking student. He spent many years learning all he could about the ocean. By the age of 28, he was an expert. In 1970，he took a job as a scientist at Woods Hole Oceanographic Institute in Massachusetts. There he studied underwater mountains of the Atlantic Ocean. He came up with ways to predict volcanoes under the oceans. Working with other scientists, Ballard also found previously unknown sea animals. These animals lived far below the ocean s surface，where scientists had believed no animals could live. By the 1980s, Ballard s interests changed. He developed unmanned vehicles to explore the ocean bottom. His first find, the wellknown ship Titanic, made Ballard famous. He was not happy with just one big find, however.He looked forand foundother wellknown ships. One was the German battleship Bismarck. Another was the USS. Yorktown，an aircraft carrier (航空母舰) that sank during World War .Today Robert Ballard is still an underwater explorer. He also heads an organization that encourages students to learn about science. Ballard hopes that some of the students will follow in his footsteps. After all, the worlds huge oceans are mostly unknown. Who knows what remains to be discovered under the sea?【语篇解读】本文是一篇记叙文，主要叙述了Robert Ballard成为水下探险家的经过。1What was Ballards dream when he was young?ATo be a science teacher.BTo be a famous writer.CTo be an animal expert.DTo be an underwater explorer.【解析】细节理解题。根据第二段第三句“Ballard decided he wanted to be like Captain Nemo when he grew up.”并结合第二段第二句可知，他的梦想是成为水下探险家。【答案】D2When Ballard worked at Woods HoleOceanographic Institute, he Aexplored the undersea world by shipBthought of ideas to predictunderwater volcanoesCfound some unknown sea animals aloneDset up an organization to teachstudents science【解析】细节理解题。根据第三段第六句“He came up with ways to predict volcanoes under the oceans.”可知，他想出了预测水下火山爆发的方法。【答案】B3Which is the correct order of the events mentioned in the text about Ballard?aHe found the German battleship Bismarck.bHe read a book about Captain Nemo.cHe found the famous ship Titanic.dHe became an expert in science.AbcdaBdbcaCbdcaDdcab【解析】细节理解题。根据第二段内容可知，他10岁时读了有关Nemo船长的书，根据第三段内容可知，他1970年时成为一名科学家；根据第四段内容可知，到20世纪80年代，他发现了泰坦尼克号，之后发现了德国俾斯麦号战舰。【答案】C4What can we learn from the text?ABallard was greatly influenced by Twenty Thousand Leagues Under the Sea.BBallard didnt like fishing and swimming in his childhood.CBallards parents felt disappointed at his undersea adventures.DHuman beings have explored more than half of the sea.【解析】推理判断题。根据第二段内容可知，Robert Ballard读了海底两万里这本书使他明确了他的理想，并为之努力，最终获得了成功。因此这本书影响了他的一生。【答案】AB【导学号：15680043】Coral reefs(珊瑚礁)are not just beautiful to look at, but also very useful. They shelter nearly 25% of ocean life and provide food for billions of people. However, like many other species, this amazing ecosystem(生态系统)is in danger of dying out!There are two main reasons for the destructionthe rising carbon dioxide levels caused by global warming as well as human influences like bottom operation. While not much can be done about the former, the loss caused by the latter can be reduced.Bottom operation involves dropping nets to the ocean bed and then dragging them up when filled with fish. This action damaged the ocean floor, causing the coral branches to separate from the reefs. While that is very discouraging, the good news is that if these branches are found quickly, they can be saved. At present, that work is being performed by volunteer divers. But the method has only limited success because they cannot stay long underwater, nor reach depths of over 200 meters where some of the deepsea coral grows.However, this is not the case for Coralbotsthe robots that can constantly seek out broken branches. A team of coralbots， each individually working to simple rules will piece together damaged bits of coral, allowing them to regrow. They are programmed to be able to distinguish between other things and the coral. The robots work together in groups, similar to bees. If one coralbot is damaged then the others will still be able to complete the task.Dr LeaAnne Henry said: “The project of using coralbots offers us the possibility to restore(修复) the function of reefs. It is in the final stage of testing. Once ready, the researchers hope t