外研版 (2019)选择性必修 第二册Unit 5 A delicate world优秀作业课件ppt

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Starting out & Understanding ideas
Unit 5 A delicate world
MACQUARIE ISLAND: from Chaos to Conservation
Contents
Part 1 Comprehending the Reading TextPart 2 Learning VocabularyPart 3 Analysis of sentence structures
Lead-in
What do you know about “Macquarie Island (麦夸里岛)”?
Macquarie Island is located in a very remote part of the southern oceans, half-way between Australia and Antarctica.It provides major geological interest, as the only place on Earth where rocks from the earth’s mantle (6km below its crust at the ocean floor) are being actively exposed above sea level.
Lead-in
What do you know about “Macquarie Island (麦夸里岛)”?
The island is still seismically active with frequent earthquakes and landslides as the geological processes continue. The rock exposures on Macquarie Island are remarkable for their lack of deformation and the clarity of the rock sequences from all levels down to 6km below the ocean floor crust.It is recognised on the world heritage list for its wild natural beauty and its phenomenal concentrations of marine life. The vast majority of the site (5,272 km2, 97.7% of its total area) falls within a marine reserve that protects the ocean around the island, supporting some 100,000 seals and 3-4 million penguins. A breeding population of 850,000 pairs of endemic Royal Penguins is one of the greatest congregations of seabirds in the world, while king penguins, four species of albatross and elephant seals are other prominent members of the rich wildlife community.
Lead-in
Look at the pictures and title. What will be talked about in the passage?
Read and choose
1. Which animals are not the nativc inhabitants on Macquaric Island?A. Royal penguins. B. King penguins. C. Elephant seals. D. Rabbits.
3. What does the word“ their”in the 5th paragraph refer to?A. Cats’ B. Rabbits’. C. Parakeets’. D. Dogs’
Read and fill
Group discussion
Post-reading
Group discussion
1 What is your understanding of “we humans owe it to the island to give it a happy ending” ?2 Do you think it was right to eradicate the “pests” from Macquarie Island? Give your reasons.3 How could similar situations be avoided in the future?
Learning Vocabulary
II.
Learning Vocabulary
➊If the day turns out snowy, we may have to change our plans.如果那天下雪的话，我们可能得改变计划。❷The experiment turned out to be harder than we thought.这实验结果比我们想象的要难。❸It turned out that I was wrong.结果是我错了。❹Thousands of people turned out to watch yesterday's football match .成千上万的人前去观看了昨天的足球比赛。❺The factories in China turn out around 200 million masks a day during this period.这段期间，中国的工厂一天生产约2亿只口罩。
turnout 作“结果是，证明是; (大量)出席，参加讲时，是不及物动词词组，不用于被动语态;作“制造，生产”讲时，是及物动词词组。
Sentence structures
(2)“nor/neither+情态动词/助动词/连系动词be+主语”,意为也不.....”，表示前面的否定情况也适用于另一人或物。If he doesn't go to the club tomorrow, neither/nor will I.如果明天他不去俱乐部，我也不去。