选择性必修第四册 Unit 3 Sea Exploration 题组训练1-【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，人教版）

UNIT 3　SEA EXPLORATION 题组训练 1 Ⅰ.阅读 A They’re life-jacket orange,they’re robots and they’re capable of sailing the high seas without human intervention. On Tuesday the National Oceanic and Atmos-pheric Administration (NOAA) launched a pair of saildrones (海洋无人机) in Pacific Northwest waters for the first time.Their summer-long sailing journey will stretch from Vancouver Island to California.The saildrone operators will collect data to help set future fishing seasons.The government wants to see whether seagoing robots can extend fishery surveys now performed by expensive manned ships. Nora Cohen from NOAA said,“The 23-foot long seagoing robots can follow a remotely-programmed course for up to a year at a time.And they don’t require any fuel.We use wind and solar power to drive the sensors.”He added,“It means that we’re able to go to places where we don’t really want to send people,and go into weather that we really don’t want anyone ever to be in,and be able to send back measurements.” The primary mission is to investigate the species and number of fish in existence and the places where they are.Larry Hufnagle,a scientist of NOAA Fisheries in Seattle,said,a traditional big NOAA research ship-based survey costs around $25,000 per day.By comparison,one saildrone runs $2,500 per day. “It could be a significant saving,”Hufnagle said.“But like anything else,there is a tradeoff in what you get and what you don’t get.On the manned ship,we have limited time.It takes a lot of people.We spend a fair amount of money.But there is one thing the saildrone can’t do that humans can:cast a net to catch and positively identify the fish detected below.The saildrones are going to give us additional data,not replacement data.” Nora Cohen said a venture capital-backed company based in Alameda,California, expects to launch a total of 11 of its seagoing robots to survey different water bodies for NOAA this year.The Bering and Arctic seas,coastal California and Gulf of Mexico will be the locat