高二下学期英语外研版选修八 Module1 Reading and vocabulary 课件 (3).ppt

Antarctica How much do you know about it? 信天翁  多雪海鸟 燕鸥  雪海燕 海燕 Fast-reading Look through the whole passage and find out the main idea of each paragragh: Para 1 Para2 Para3 Para4 Para 5 A. Animals and Plants B. the Discovery of Antarctica C.Brief Introduction of Antarctica D.The Antarctic Treaty E. A great place for researchers Careful-reading for more information Antarctica is the coldest??? place on Earth. It’s also the driest. With annual rainfall close to zero, Antarctica is technically a desert. Covering about 14 million square kilometers around the South Pole, it is the fifth largest continent in the world. Para.1 Brief introduction of Antarctica A high mountain range, the Trans-Antarctic range, runs from east to west, cutting the continent in two. There are volcanoes too, but they are not very active. Antarctica holds 90% of the world’s ice, and most of its fresh water (70%) is in a frozen state, of course. 98% of the surface is covered permanently in the ice cap. …thick, but ….a depth of five kilometers. Strong winds driven by gravity blow from the pole to the coastline, while other winds blow round the coast. It is difficult to imagine a more inhospitable place. Para.1 Brief introduction of Antarctica Size: ________ square kilometers; the 5th_______ continent in the world Climate: ______ and______ on Earth 1.90% of__________, 70% in________, 98% is covered in_____ 2.The ___________ range 3.strong ______ 14 million largest driest the world’s ice a frozen state the ice cap Other geographical features: coldest trans-antarctic winds no but only few types is full of Para 2 wildlife plants penguins seals whale moss algae lichen Why are there few types of plants which can survive there？ no only few types is full of but .. the long Antarctic winter night, which lasts for 182 days, as well as the extreme cold and lack of rainfall, means that few types of plants can survive there. …..南极冬天的夜晚长达182天，加上气候极度寒冷，降水量极少，这意味着很少有植