【文章內(nèi)容簡(jiǎn)介】 arning, the Shark Spotter system receives imagery from the drone camera and attempts to identify all objects in the scene. Once certain objects are detected, they are put into one of 16 categories: shark, whale, dolphin, rays, different types of boats, surfers, and swimmers. If a shark is detected, Shark Spotter provides both a visual sign on the puter screen and an audible warning to the operator. The operator confirms the warning and sends text messages from the Shark Spotter system to the Surf Life Savers for further action. In an emergency, the drone is equipped with a lifesaving flotation pod (漂浮倉(cāng)) together with an electronic shark repellent (驅(qū)逐裝置) that can be dropped into the water in cases where swimmers are in severe trouble, trapped in a rip, or if there are sharks close by. In January 2018, the Westpac Little Ripper Lifesavers was used to rescue two young swimmers caught in a rip at Lennox Head, NSW. The drone flew down the beach some 800 meters from the lifeguard station, and a lifesaving flotation pod was dropped from the drone. The plete rescue operation took 70 seconds. We believe Shark Spotter is a winwin for both marine life and beachgoers. This unique technology bines dynamic video image processing AI and advanced drone technology to creatively deal with the global challenge of ensuring safe beaches, protecting environments, and promoting tourism.（1）A Shark Spotter is ________. A.a solution to monitor sharksB.an equipment to identify lifesaversC.a technology to prevent shark attacksD.a project to pioneer the use of drones（2）When a shark is spotted near a swimmer, the system will ________. A.take timely actionB.analyze the visual dataC.classify the identified objectsD.turn on deep learning mode（3）The example in the 5th paragraph shows us that the system is ________. A.efficient in saving livesB.effective in detecting sharksC.smart in driving sharks awayD.practical over the whole sea area（4）What is the author39。s attitude towards the future of SharkSpotter? ....【答案】 （1）C（2）A（3）A（4）B 【解析】【分析】本文是一篇說(shuō)明文，介紹了一種旨在防止鯊魚襲擊的技術(shù)Shark Spotter的工作原理以及重要意義。 （1）考查推理判斷。根據(jù)第四段中的”If a shark is detected, Shark Spotter provides both a visual sign on the puter screen and an audible warning to the operator. The operator confirms the warning and sends text messages from the Shark Spotter system to the Surf Life Savers for further action.“如果鯊魚被發(fā)現(xiàn)，Shark Spotter會(huì)在電腦屏幕上顯示視覺(jué)訊號(hào)，并向操作員發(fā)出聽覺(jué)警告。操作員確認(rèn)了警告，并從鯊魚觀測(cè)者系統(tǒng)向沖浪救生員發(fā)送短信，以便采取進(jìn)一步行動(dòng)?？赏茢喑鯯hark Spotter是一種防止鯊魚襲擊的技術(shù)，故選C。 （2）考查推理判斷。根據(jù)第四段中的”In an emergency, the drone is equipped with a lifesaving flotation pod (漂浮倉(cāng)) together with an electronic shark repellent (驅(qū)逐裝置) that can be dropped into the water in cases where swimmers are in severe trouble, trapped in a rip, or if there are sharks close by.“在緊急情況下，無(wú)人機(jī)配備了一個(gè)救生浮選艙和一個(gè)電子防鯊器，當(dāng)游泳者遇到嚴(yán)重麻煩、被困在裂口或附近有鯊魚時(shí)，可以將防鯊器放入水中?？芍?dāng)在游泳者附近發(fā)現(xiàn)鯊魚時(shí)，系統(tǒng)會(huì)及時(shí)采取行動(dòng)，故選A。 （3）考查推理判斷。根據(jù)第五段”In January 2018, the Westpac Little Ripper Lifesavers was used to rescue two young swimmers caught in a rip at Lennox Head, NSW. The drone flew down the beach some 800 meters from the lifeguard station, and a lifesaving flotation pod was dropped from the drone. The plete rescue operation took 70 seconds.“2018年1月，西太平洋小開創(chuàng)者救生員隊(duì)(Westpac Little Ripper Lifesavers)被用來(lái)營(yíng)救兩名在新南威爾士州倫諾克斯海德(Lennox Head)被困的年輕游泳者。這架無(wú)人機(jī)從距離救生站800米的海灘上飛下來(lái)，一個(gè)救生浮筒從無(wú)人機(jī)上掉了下來(lái)。整個(gè)營(yíng)救行動(dòng)耗時(shí)70秒。可推知第五段的例子告訴我們這個(gè)系統(tǒng)在拯救生命方面是有效的，故選A。 （4）考查推理判斷。根據(jù)最后一段中的”We believe Shark Spotter is a winwin for both marine life and beachgoers.“我們相信Shark Spotter對(duì)海洋生物和海灘游客來(lái)說(shuō)都是雙贏的?？芍髡邔?duì)Shark Spotter的未來(lái)持樂(lè)觀的態(tài)度。故選B。 【點(diǎn)評(píng)】本題考點(diǎn)涉及推理判斷題型的考查，是一篇科技類閱讀，考生需要根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。5．閱讀理解 It was just before 8 . on October 17, 39。d checked the higher summits forecast posted by the Mount Washington Observatory before she left. Based on her experience, Bales knew that her hike was realistic. Besides, she had two plans and extra layers of clothing to better regulate her temperature as conditions changed. At 10:30 ., the weather was showing its teeth. Bales added even more layers, including a jacket to protect herself from the cold winds and heavy fog. She made her way across the snow—covered ridge toward Mount Washington and began to think about calling it a day. Then she noticed something: a single set of footprints in the snow ahead of her. She39。d been following faint tracks all day and hadn39。t given them much thought, because so many people climbed Jewell Trail. But these, she realized, had been made by a pair of sneakers. She silently scolded the absent hiker for breaking normal safety rules and walked on. Now she felt genuinely alarmed. She was sure the hiker could not navigate(找到方向)in the low visibility and was heading straight toward the challenging trails of the Great Gulf Wilderness. Bales stood there, shocked. The temperature and clouds were in a race to find their lowest point, and darkness was mere hours away. If Bales continued to follow the tracks, she39。d add risk and time to the route she39。d already adjusted to manage both. But she could not let this go. She turned to the left and called out, Hello! into the frozen fog. Bales wouldn39。t get an answer until a week later, when the president of her rescue group received a letter in the mail. It read: I hope this reaches the right group of rescuers. I want to remain anonymous(匿名的), but I was called John. On Sunday, October 17, I went up my favorite trail, Jewell, to end my life. Weather was to be bad. Thought no one else would be there. I was dressed to go quickly. Next thing I knew this lady was talking to me, changing my clothes, giving me food, making me warmer.（1）What does the underlined sentence mean? weather began to get worse.