（新教材同步系列）2024春高中英语 Unit 3 Sea Exploration 课件 新人教版选择性必修第四册.ppt

1、UNIT 3SEA EXPLORATION美文导入素养解读：我们生活的地球有三分之二的面积被水覆盖。因此很久以前，人类就开始认识海洋、探索海洋。为了寻找海洋航线，我们的祖先不畏艰辛，克服种种困难，为人类征服海洋做出了巨大的贡献。历史上，郑和七下西洋，远及非洲沿岸各国。了解这些历史，有助于培养同学们的文化意识，了解古代中国的强盛，增强同学们的民族自豪感，提升我们的民族自信心。此外，阅读有关海洋探索类的文章，还有助于同学们认识海洋，并且培养同学们自觉热爱海洋、保护海洋、热爱祖国的思想意识。主题：营救鲸鱼学科素养：人与自然难度系数：【语篇导读】在澳大利亚的塔斯马尼亚岛，大约270头领航鲸搁浅。这是近

2、年来最大的搁浅事件。本文主要介绍了鲸的现状及人们为拯救鲸所作的努力。270 Pilot Whales Stranded in TasmaniaAround 270 pilot whales(领 航 鲸)were stranded after swimming into shallow water off the island of Tasmania in Australia.This is the largest whale-stranding event in years.People are working hard to save the whales，but at least 90 h

3、ave died.Every year，around 2,000 large sea animals，such as dolphins and whales，die by swimming onto a beach or into water thats too shallow for them to escape.This is known as“stranding”or“beaching”Pilot whales and killer whales are some of the most commonly stranded whales.The current stranding is

4、the largest in Tasmania since 1935.The whales were discovered on Monday in three different groupstwo groups of about 30 and one group of over 200Rescue workers are trying to“refloat”the whales so they can swim away.The job is especially challenging because the whales are so large.Pilot whales can gr

5、ow up to 23 feet(about seven metres)long and can weigh up to 5,000 pounds(about 2,300 kilograms).【1】To refloat the whales，they are moved onto a sling，which allows the rescuers to drag the whales to deeper water.【2】Many of the whales stranded in Tasmania are in areas that are hard to reach，so its har

6、d to get to them with a sling.About 40 workers are handling the work，along with roughly 20 experienced volunteers.So far，around 25 animals have been rescued.Since the rescued whales are likely to return to the place where others are in trouble，workers are trying to make sure that rescued whales dont

7、 get stranded again.Still，about 90 whales have died so far.Rescue efforts are likely to continue for the next few days.Scientists dont fully understand why beachings happen，but they have some ideas.Its possible that the animals lose their way when they are swimming quickly and focusing on something

8、else，like chasing fish or trying to escape while being chased.Whales and dolphins travel together in groups.They work together closely，and the group members generally follow the leader.When the leader gets beached，it can lead to other animals getting stranded as well.Its known that a single animal m

9、ay beach itself if its sick or injured.Its possible that when groups of whales get stranded，they may be following，or trying to protect an animal thats unwell.课标词汇strand/strnd/vt.使搁浅；使陷于困境shallow/l/adj.浅的；肤浅的sling/sl/n吊索handle/hndl/vt.处理；对付escape/skep/v逃避；避开；避免chase/tes/vt.追逐；追捕【1】To refloat the whal

10、es，they are moved onto a sling，which allows the rescuers to drag the whales to deeper water.分析：本句中的“To refloat the whales”是动词不定式作目的状语。“they are moved onto a sling”是句子的主句部分。后面的which引导非限定性定语从句，修饰前面的名词sling。译文：为了让鲸鱼重新浮起来，它们被转移到一个吊索上，这样救援人员就可以把鲸鱼拖到更深的水里。句型精析【2】Many of the whales stranded in Tasmania are

11、 in areas that are hard to reach，so its hard to get to them with a sling.分析：本句是由并列连词so连接的两个并列句。在前面的分句中，“stranded in Tasmania”是动词的-ed形式短语，在句中作定语，修饰前面的复数名词whales。而“that are hard to reach”则是定语从句，修饰前面的复数名词areas。译文：很多鲸鱼在塔斯马尼亚岛搁浅，这个地方很难靠近，所以很难用吊索把它们吊起来。核心素养目标【语言技能】阅读有关海洋探索的记叙文、说明文，了解世界航海史，增强人类保护海洋的意识。阅读有关海洋探索的说明文，并从中学习有关海洋及海洋生物的词汇、短语和句型的表达。能够就海洋话题，特别是海洋垃圾发表自己的观点看法。听懂有关海洋、海洋生物及海洋保护方面的听力材料。写作一篇有关海洋探索的议论文。学习动词不定式的用法。【素养提升】阅读有关人类探索海洋的历史，了解海洋探索的历史及现状。了解中国人民在古代历史上战胜困难，探索海洋的历史，增强民族自豪感，培养民族文化自信的意识。通过课文的学习，了解海洋的现状，培养保护海洋及海洋生物的环境保护意识。