unitWhat'sthehighestmountainintheworld时PPT课件

1、学习目标1.掌握形容词最高级的变化规律。2.会运用最高级对同类事物进行比较。3.了解4个世界之最。看一看 1分钟第1页/共26页Do you remember?tall _ _short _ _small _ _cheap _ _fat _ _big _ _heavy _ _nice _ _expensive _ _tallertallestshortertallestsmaller smallestcheaper cheapestfatter fattestbiggerbiggestheavierheaviestnicer nicestmore expensivemost expensive

2、说一说 3分钟第2页/共26页GeographyToday, well have a geography class in English.Now, I have some questions to ask you.第3页/共26页Do you know these places?the Saharathe Caspian SeaQomolangmathe Nile说一说 3分钟第4页/共26页Zhujiang River is _.Yellow River is _ than Zhujiang River.Yangtze River is the _ river in China.What

3、is the longest river in the world?The Nile is the _ river in the world.珠江2210公里黄河5464公里长江6300公里尼罗河6671公里longlongerlongestlongest说一说 3分钟第5页/共26页The Tai Mountain is _.The Emei Mountain is _ than Tai Mount.Qomolangma is _.highhigherthe highestQomolangma说一说 3分钟第6页/共26页The Caspian Sea is a _ (lake / sea)

4、.lake第7页/共26页The Caspian Sea 里海地处亚欧大陆腹部，东、北、西三面湖岸分属土库曼斯坦共和国、哈萨克斯坦共和国、俄罗斯联邦和阿塞拜疆共和国，南岸在伊朗境内。里海的南面和西南面被厄尔布尔士山脉和高加索山脉所环抱，其他几面是低平的平原和低地。整个海域狭长, 南北长约1200公里，是世界最长及唯一长度在千公里以上的湖泊；东西平均宽约320公里，湖岸线长约7000公里，面积371000平方公里，最大深度为1025m ，湖水总容积为76000立方公里。 里海的湖底深度不同，北浅南深，湖底自北向南倾斜，水面低于外洋海面28米，湖水平均深度约180米。有岛屿约50个，面积约350平

5、方公里。有伏尔加河、乌拉尔河、库拉河、捷列克河等130多条河流注入。听一听 2分钟第8页/共26页The Sahara is a _(desert / mountain)desert第9页/共26页the Sahara 撒哈拉沙漠约形成于二百五十万年前，乃世界第二大荒漠，仅次于南极洲，是世界最大的沙质荒漠。它位于非洲北部，气候条件非常恶劣，是地球上最不适合生物生存的地方之一。 其总面积约9,065,000平方公里,容得下整个美国本土。“撒哈拉”是阿拉伯语的音译，源自当地游牧民族图阿雷格人的语言，原意即为“沙漠”。听一听 2分钟第10页/共26页Exercise 1 MatchQomolangm

6、aThe SaharaThe Caspian SeaThe Niledeeplonghighbigstrong练一练 1分钟第11页/共26页Exercise 2 Matchabout 9,600,000 square kilometers in size1,025 meters deep6,671 kilometers long8,844.43 meters highQomolangmaThe SaharaThe Caspian SeaThe Nile练一练 1分钟第12页/共26页1b Listen and complete the sentences.1. Qomolangma is _

7、 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练一练 5分钟第13页/共26页A: Whats the highest mountain in the world?B: _.A: Whats the biggest desert in the wo

8、rld?B: _.A: Whats the deepest salt lake in the world?B: _.A: Whats the longest river in the world？B: _.Please work in pairs.练一练 5分钟第14页/共26页当堂检测一、写出一下词语的比较级和最高级：big _ _ deep _ _high _ _ long _ _二、单项选择：1. Yao Ming is _ basketball player in China. A. tall B. taller C. the tallest2. Miss Zhang is _ tha

9、n Zhang Xiaoling. A. old B. older C. oldestbigger biggestdeeper deepesthigher highestlonger longest第15页/共26页三、说出以下地点的名称。第16页/共26页原级比较级最高级talltallerfastfasterfinefinerdrydriereasyeasierbigbiggerfatfatteroutgoingmore outgoingpopularmore populartallestfastestfinestdriesteasiestbiggestfattestmost outgoi

10、ngmost popular1.直接加est构成最高级2. 以e结尾的，直接加st3.以辅音字母加y结的，改y为i，再加est4. 双写最后的辅音字母，再加est5.多音节及部分双音节词在前面加most构成最高级听一听 4分钟第17页/共26页不规则变化：good/wellbad/badlymany/muchfaroldlittle-better-best-worse-worst-more-most-farther/further-farthest/furthest-older/elder-oldest/eldest-less-least听一听 2分钟第18页/共26页使用比较级或最高级应注意

11、的几点1. 例：He is tall.He is very short, but taller than me.Of the three girls, Mary is the tallest.（没有比较，用原级）（两者之间比较，用比较级）（多者比较，用最高级）2. 例：This is the best room in the hotel.He studies (the) hardest of all the students.形容词最高级前常加the，副词最高级前the可有可无听一听 2分钟第19页/共26页3. 例：Japanese is much more difficult than E

12、nglish.Your spoken English is a little better than mine.比较级前常用的修饰语有：even, a lot, a bit, much, a little 等。第20页/共26页( )1. Jack is _ than Tom. A. tall B. as tall as C. taller D. the tallest( )2. Who is _, Tom, Jack, or David?A. tall B. as tall as C. taller D. the tallest()3. The yellow river is one of

13、_ river in China.A. long B. the long C. the longer D. the longestCDD练一练 5分钟第21页/共26页( )4. Of all the subjects, English is _ for me. A. interesting B. more interesting C. the most interesting D. much more interesting( )5. I didnt buy the second-hand book because the seller wanted _ money than I had e

14、xpected. A. less B. least C. most D. moreCD第22页/共26页1,200thousand 千one thousand, two hundred111,200one hundred and eleven thousand, two hundred1,111,200111,111,200million百万one million, one hundred and eleven thousand, two hundredone hundred and eleven million, one hundred and eleven thousand, two hundred听一听 5分钟第23页/共26页3002,30020,3001,500,30013,500,300million ， thousand ， hundre