1、Unit 7Whats the highest mountain in the world?Section AFree talk: Who is the most hard-working student in your group? Who is the tallest student of the five? Who is the thinnest student in our class? Who is the most popular teacher at school? Who is the most serious teacher in our class? Who runs fa

2、stest of us? Who sings best among the three girls?Do you know these places? Qomolangma runs along the border between China and Nepal. It is covered with snow all the year round. Its 8844.43 meters high, the highest in the world. Its 26 kilometers long.Qomolangma The Nile is the longest river in the

3、world. Its more than 6600 kilometers long. It runs through 9 countries. Its one of the largest river flows through the international states in the world and runs into the Mediterranean,meditreinin Sea(地中海地中海) in the end. the Nile The Caspian Sea is the biggest lake in the world. It lies in the borde

4、r between Asia and Europe.the Caspian Sea The Sahara is the biggest desert in the world. It is located in the northern Africa. Climate conditions are very bad. It is one of the earths most not suitable for biological survival. the SaharaWhich is the highest mountain in the world?Which is the longest

5、 river in Asia?. 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 high1a8844.43 meters high 1,025 meters deep6,671 kilometers long9,600,000 square kilometers in size高度深度長度面積長度、寬度、高度、深度等

6、的表示法，有一個專門的結(jié)構(gòu)，那就是“基數(shù)詞 + 單位詞（meters，kilometers,square kilometers） + 形容詞(long長,wide寬, high高, deep深, in size面積)”觀察與觀察與總結(jié)總結(jié)1觀察與觀察與總結(jié)總結(jié)2eight thousand, eight hundred and forty four, point four threesix thousand, six hundred and seventy oneone thousand and twenty fivenine million,six hundred thousand 千位及千

7、位以上數(shù)字的表達：以三位數(shù)為一個單位，每三位數(shù)用“，”隔開。8844.436,6711,025 9,600,000 98ninety-eight125one hundred and twenty-five10256,6718,844.439,600,000one thousand and twenty-fivesix thousand six hundred and seventy-oneeight thousand eight hundredand forty-four point four threenine million six hundred thousand 讀一讀讀一讀Lets

8、have a competition: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 longest Listening1bQomolangma is high

9、er than any other mountain in the world. =Qomolangma is the highest mountain in the world.注意：注意：higher than any other mountain比比其他任何山都高其他任何山都高,any指任何一個指任何一個,后接單數(shù)名詞。后接單數(shù)名詞。即即:形容詞比較級形容詞比較級+than any other+單數(shù)名詞單數(shù)名詞=最最高級高級+單數(shù)名詞。單數(shù)名詞。 eg:This book is more difficult than any other book here.Shang is larger

10、 than any other city in China.1c Use the information in 1b to make conversations.Example:A: What is the highest mountain in the world?B: Qomolangma. 自主或小組探究A:What is the highest mountain in the world?B: A:Which is the deepest salt lake in the world?B:A:Which is the longest river in the world?B:A:Whi

11、ch is the biggest desert in the world?B:A: Which is the second longest river in the world?B: 1c Pair workGroup work A:What is the highest mountain in the world?B:A: How deep/ big/ long/high is Qomolangma?B: Its . meters/ kilometers/square kilometers.highdeeplongin sizeHave a quiz:1.His book is _ _ t

12、han any other book here.(difficult)2.This book is _ book in the bookcase here.(useful)3._ _ is the river? -It is about 2000 kilometers.4._ is the Qomolangma?-It is 8,843 meters.5.It is said that the Caspian Sea is 1,025 meters _.more difficult the most usefulHow long How highdeep China is one of the

13、 oldest countries in the world. Its over 5,000 years old. And it is the biggest country in Asia. There are two famous rivers in China. One is the Yangze River, the other is the Yellow River. Whats the longest river in China? How long is it?the Yangtze RiverThe Yangtze River is the third longest rive

14、r in the world, the first Asian rivers. Its 6211.31 kilometers long. It passes through 11 provinces and runs into the East Sea in Shanghai finally. The Yellow River, a large river in northern China, has a total length of approximately 5,464 kilometers and a drainage area of approximately 752,443 square kilometers. The f