(
课件网) Unit 5 A delicate world MACQUARIE ISLAND: from Chaos to Conservation To find out what happened to Macquarie Island To make a flow chart to show what human did, their purposes and the results and talk about the effects of these human activities on Macquarie Island To spur our sense of environmental protection Look at the picture below and answer the questions. 1. What animals can you see in the picture Penguins, a bird. 2. What kind of changes would take place if cats, rats and rabbits were introduced to an environment like this They would hunt the birds and eat the native vegetation, thus upsetting the local ecological balance. Macquarie Island lies in the South- west Pacific Ocean, halfway between Australia and Antarctica. Its native inhabitants encountered challenges. Human intervention led to the erosion of the original habitat, cased chaos and destroyed the ecology dramatically. MACQUARIE ISLAND: from Chaos to Conservation Read the title and look at the picture. Predict what the passage is mainly about. “MACQUARIE ISLAND: from Chaos to Conservation”一文介绍了麦夸里岛是如何从19世纪初的一片混乱状态慢慢走向如今人与自然和谐共处的局面。语篇类型为记叙文。作者按照时间顺序向读者介绍了这一漫长的过程。时间顺序主要是通过正确运用时态以及时间状语、时间名词或小句形成的衔接来体现的。本文中作者在描写人类的到来给麦夸里岛造成 的负面影响时，主要使用了一般过去时。同时，文中还使用了大量的表示时间的词语，如in 1810、Meanwhile、in 1891、in the 1970s、In the 1980s、 in 2000、in 2006等。现在我们就一起来看看吧！ Read the passage and find out what happened to Macquarie Island. Read the topic sentences; Link the topic sentences together to get the main idea of the passage; Draw the outline of the passage; Match the main idea with its corresponding paragraph. A. The rabbit problem resulted in parakeets' dying out. B. The rat, mouse and rabbit problem made people realise that problems should be solved once and for all. C. I participated in a programme to tackle this very problem. D. Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat. E. People released a virus to kill rabbits and used traps and dogs to catch the cats. F. Rats and mice brought to the island caused harm. What happened to the Macquarie Island Non-native species introduced to Macquarie Island attacked native birds, and led to a substantial reduction of bird population and even the extinction of parakeets. In addition, non-native species ate and devastated the native vegetation. All of this played a part in upsetting the natural harmony of the island. But now the island’s ecology is on the road to recovery with human efforts. Choose the author's purpose in writing the passage and give your reasons. 1. To analyse how Macquarie Island was saved from destruction. 2. To inform readers of the chaos caused on Macquarie Island by humans. 3. To entertain readers with a funny story about what happened on Macqu ... ...
