Unit 5 Into the Unknown Developing ideas Reading 课件-2022-2023学年高中英语外研版（2019）选择性必修第四册

SB4U5 Diving Deep (Developing ideas) 1 Lead in Watch a video clip of Blue Planet II and think about the ocean exploration you know. Pre-reading Look at the picture and answer the questions. Do further research if necessary. What different zones are there in the ocean? Which parts of the ocean do you think have been explored? What do you know about the deepest part of the ocean? The different zones in the ocean are Sunlight Zone(阳光地带), Twilight Zone(阴影区), Midnight Zone(午夜区) and Abyssal Zone(深海层). 200 m 1000 m 6000 m 11000 m 0 m ≈20℃ 5-10℃ 0-4℃ <0℃ We are entering a new age of oceanic discovery. We have little knowledge of Earth’s sea bed. Many archaeological finds are made in shallow waters. There are extraordinary creatures in the deep sea. The oceans are a valuable source of natural resources. While-reading Read for main idea Skim the passage and match the main idea. Para.5 Para.1 Para.2 Para.3 Para.4 Diving deep Para. 1: Introduce the topic. Para. 2-4: Ocean __________ Para. 2: the _______ of Neapolis Para.3: amazing _____________ discoveries Para. 5: _____________ is entering a new age of oceanic discovery. Humankind ruins Para.4: __________ of natural resources biological discovery exploration While-reading Read for structure While-reading Read for details Scan the passage and complete the diagram. deep sea Archaeological shallow waters vast depths the ruins of Neάpolis Biological the planet's fish the capacity for life on our planet bone-white coral the barreleye life to be found even around the deep-sea volcanic openings the sea bed deep-sea drilling “fire ice” China's underwater vessels While-reading Read for writing skills What writing skills are used in the passage? Statistics & examples The discourse markers(语篇标记) While-reading statistics While-reading Examples Examples in para.2 whole city buried beneath the waves Roman city of Neapolis location:___________________ time: ______________ cause:______________ off the co