【精品】高三英语教案学案一体化 Unit 2 Crossing limits.docVIP

2007届高三英语教案学案一体化Unit 2 Unit 2 Crossing limits Step 1 Warming up 1.Look at the pictures on P.10.Do you know what made these people famous? Zheng He is famous for having made several voyages to the West,reaching as far as Africa. James Cook is famous for having made three great voyages around the world,and mapping coasts and sea routes. Christopher Columbus who discovered America in 1492. Abel Tasman was a Dutchman who discovered New Zealand. 2.Please tell me how many continents there are in the world and what are their names. Seven continents:North America,South America,Africa,Europe,Asia,Oceania and Antartica. 3.What were the dangers and challenges explorers in the past faced while discovering and exploring the world抯 continents? Dangers to which explorers were exposed were: Getting lost either in the jungle or at sea; Being attacked by native people; Being attacked by wild animals; Dying in a storm. Challenges which explorers faced: Maps were perhaps not very accurate; Communication was lost or important information could not be got on time; For inland exploration transport was slow. 4.What words and expressions will you need to talk about discovery and science exploration? Category Examples of words and phrases Transport navigation,compass,sail,ship,captain,helicopter,camels,elephant,horses,jeep, porters,expedition Communication journals,maps,magazines,Internet,telephones,e-mail,smoke sihnals,letters Science and geography vegetation,wildlife,(mineral)resources,ore,population,etc polar,Indian Ocean,Pacific,Atlantic,Caribbean,etc Position central,westernmost,southernmost,remote,altitude,latitude Products oil,rubber,spices,silk,fruit,tea,mushrooms,coffee,chocolate(cocoa),cotton,turkey.maize,etc Step 2 Speaking To deal with some words , phrases or sentences used in the talk（先用汉语解释一下即可，后面具体研究） 1.take possession of 占领，占有 in possession of 某人占有，拥有 in the possession of 某物/某人为某人所占有 2. in the name of sb/sth 以…的名义，代表 3．masses of 大量的 a mass of sand/snow 一堆/团/块 4. b