Unit 3 Period 5 Video Time ppt课件（含音视频素材）-（2022新）人教版高中英语选择性必修第四册.rar

Unit 3Unit 3Sea ExplorationSea ExplorationPeriod 5 ：Video TimeTo know about Chinas research vesselsTo think about the significance of sea explorationWhat is this in the picture?Its a vessel. Why do we need vessels like this?They could help us do some research at sea.Why do people explore the ocean?Ocean exploration is about making discoveries, searching for things that are unusual and unexpected. Through ocean exploration, we collect data and information needed to address both current and emerging science and management needs. We can more effectively manage, conserve, regulate, and use ocean resources.Before you watch Before you watch Deep into the SeaThe video is about Kexue, Chinas most sophisticated research vessel, which is designed to conduct a wide range of tasks. Based on Kexue, China has take the lead in building a world-class platform for marine research.1. What do you know about Kexue?2. What do you want to know about Kexue?It is the most sophisticated research vessel. Its tasks include: water body detection deep-sea environment investigation atmospheric exploration conducting onboard experiments collecting geological samples.Look at the pictures from the video on page 36 and think about the following questions. 1. What do you think these people are doing in the pictures?2. What could be done on the research vessel?1 Check your answers in Before You Watch.2 Circle the best words to complete the sentences below.1 The sea covers over/under two-thirds of our planet.2 Kexue is regarded as a moving laboratory/factory on the sea.3 The IOCAS is the institute/initiative of Oceanology, Chinese Academy of Sciences/Scientists.4 The Faxian vehicle has surveyed more than 3,000/400 sites and has collected 3/3,000 tonnes of geological samples.3. Answer the following questions.1 When was Kexue first put into operation?2 What is the purpose of designing thise vessel?3 What achivements has Kexue made?In 2014.Thanks to the Kexue, the IOCAS has taken the lead in building a world-class platform for marine research: marine landforms, seabed environments and water bodies investigation.Its designed to conduct a wide range of tasks, such as sea surface and water body detection, deep-sea environment investigation, atmospheric exploration, and the conducting of onboard experiments.4 What is the function of Faxian?5 What did IOCAS conduct research on the Western Pacific Ocean System for?To gather an enormous amount of environmental information and to carry out field experiments. To research and investigate major scientific issues of the extreme marine environment.6 Why is marine science important for China today?Deep-sea research has become an important strategic step for China to develop into a marine power. It is also an important symbol of the countrys level of technology and overall strength.Discuss the following questions in pairs.1 Human beings have explored less than 5% of the worlds oceans. Why do you think we have explored so little of the oceans so far?2 What do you think is the difference between Zheng Hes voyage 600 years ago and Chinas sea exploration today?After you After you watch watch Read the news report about Jiaolong and Xiangyanghong on page 76 and try to answer the questions. What made Chinas deep-sea research be carried out efficiently? What tasks have been done so far? What achievements have been made in Chinas marine research?感感谢观谢观看看