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1、Do you like geography?What can we learn in a geography class?mountaindesertriverlakeseasalt lakefresh lakeUnit7 Whats the highest mountain in the world? the highest mountain A:What/ which is the highest mountain in the world?A:How high is it? B:It is 8844.43 meters high. Qomolangmathe highest mounta
2、in8844.43 meters1.What/ which is the longest river in the world?2. How long is it?the Nilethe longest river6671 kilometers1.Whats the deepest salt lake in the world?2.How deep is it? the Caspian Seathe deepest salt lake1025 meters1.Whats the biggest desert in the world?2.How big is it? the Saharathe
3、 biggest desert9600000 square kilometers1a Match the facts you know.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highTalk about these pictures in pairsA: What/Which is the est in the world?B:A: How high/dee
4、p/long is it? B:8844.43m1025m6671km9,600,0001b Listen and complete the sentences.1. Qomolangma is _ than any other mountain in the world. 2. The Sahara is _ desert in the world.3. The Caspian Sea is _ of all the salt lakes.4. The Nile is _ river in the world.higherthe biggestthe deepestthe longestQo
5、molangma is higher than any other mountain in the world. 珠穆朗玛峰比世界上任何山都高。珠穆朗玛峰比世界上任何山都高。“比较级比较级than + any other + 可数名词单数可数名词单数”表表示示“甲比同一范围的任何一个人甲比同一范围的任何一个人/物都物都”，含义是含义是“甲最甲最”。可与。可与the other +可数名词可数名词复数复数互换，也可用最高级形式表达。互换，也可用最高级形式表达。=Qomolangma is higher than the other mountains in the world. 珠穆朗玛峰比世界
6、上的其他所有山都高。珠穆朗玛峰比世界上的其他所有山都高。= Qomolangma is the highest mountain in the world. 珠穆朗玛峰是世界上最高的山。珠穆朗玛峰是世界上最高的山。改写句子：1.The Sahara is bigger than any other desert in the world.= _.= _The Sahara is bigger than the other deserts in the worldThe Sahara is the biggest desert in the world2.TheCaspianseaisdeepe
7、rthananyothersaltlake.= _= _The Caspian sea is deeper than the other salt lakes in the world .The Caspian sea is the deepest of all the salt lakes.3.TheNileisthelongestriverintheworld.= _.= _The Nile is longer than any other river in the world.The Nile is longer than the other rivers in the world.2a
8、 Listen and number the facts(1- 4) in the order you hear them. 6,300 5,000 5,464 300_ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long._ China has the biggest population in the world. Its a lot bigger than the population of the US._ China is over _ years old. It
9、 has a much longer history than the US. The US is not even _ years old._ China is almost as big as the US, but it is the biggest country in Asia. 42132b Listen again and fill in the blanks in 2a with the numbers in the box. 6,300 5,000 5,464 300_ The Yangtze River is about _ kilometers long and the
10、Yellow River is _ kilometers long._ China has the biggest population in the world. Its a lot bigger than the population of the US. 6,3005,464_ China is over _ years old. It has a much longer history than the US. The US is not even _ years old._ China is almost as big as the US, but it is the biggest country in Asia.5,000300 Summary (总结)1. 1. 熟读句型。熟读句型。2. 2. 完成学法完成学法 Section ASection A。,Read the big numbers8,844.43 meters high. 8,844.43米米高高 meters high (long, wide)米高（长，宽米高（长，宽)。英语表示英语表示“有多长（宽，高有多长（宽，高）”时，时，一般一般将数词和数量单位放在表示长宽高的将数词和数量单位放在表示长宽高的形容词前面形容词前面。e.g. The wall is 1.7 metres wide.
