Unit7 Grammar focus-4c课件 2024-2025学年人教版八年级英语下册

Unit 7 What's the highest mountain in the world? Section A (Grammar focus-4c) Teaching aims 1.学习更多形容词和副词的比较级、最高级的表达句式： the+最高级+名词，one of the+ 最高级+名词复数 ， much/a little/even+比较级，as+形容词或副词的原级+as，比较级+than any other+名词。 2. 学习形容词和副词的比较级、最高级是如何构成的。  3. 使用比较等级描述自然、地理和人物等。 Warming-up Grammar Focus What's the highest mountain in the world? Qomolangma. Did you know that China is one of the oldest countries in the world? Yes,I did. It's much older than the US. How high is Qomolangma? It's 8848.86 meters high.It's higher than any other mountain. Which is the deepest salt lake in the world? The Caspain Sea is the deepest of all the salt lakes. 观察并归纳： 1.框出最高级结构并写出汉语，下划线比较级结构并写出汉语。 2.总结最高级结构及用法，much修饰比较级。 最高的山 最深的咸水湖 比美国古老的多 比其他任何一座山都高 最古老的国家之一 1.A+ 动词+the+最高级+名词(+of us three,in our class/school,in town,in Beijing,in China,in the world,of all...,among...)，表示“(在我们三个当中,在我们班/我校，在我们镇，在北京，在中国，在世界上,在所有的......,在......当中) A是最......的......。” Qomolangma is the highest mountain in the world. The Caspian Sea is the deepest salt lake in the world. China is the biggest country in Asia. 形容词和副词的比较级和最高级结构 珠穆朗玛峰是世界上最高峰。 里海是世界上最深的咸水湖。 中国是亚洲最大的国家。 2. A+动词+ one of the 最高级+名词复数（+in/of...... )，表示 “（在......中）A是是____________。” 中国是世界上最古老的国家之一。 One of the world's most dangerous sports is mountain climbing,and one of the most popular places for this is the Himalayas. 世界上最危险的运动之一是爬山，而且爬山最受欢迎的地方之一是喜马拉雅山。 China is one of the oldest countries in the world. 最...... 之一 3. A+动词（not）+as 形容词/副词的____ ____ as+ B. 表示“A和B一样......(A不如B.......)。” China is almost as big as the US. 中国几乎和美国（面积）一样大。 I'm as outgoing as my sister. 我和我姐姐一样外向。 原级 I think Larry is not as hard-working as me. 我认为拉里没有我勤奋。 4. A+动词+比较级+than any other+ 单数名词（+in/of...... ) . 表示“（在......中）A比其他任何......都要......。” Qomolangma is higher than any other mountain.（写出同义句） 珠穆朗玛峰比其他任何一座山峰都高。 =珠穆朗玛峰是世界上最高峰。 =Qomolangma is the highest mountain in the world. 该结构为比较级形式表示最高级含义。 5. A+动词+much/a lot/even+比较级+than + B. 表示“A比B......得多/甚至更......” 。 China has a much longer history than the US. 中国比美国的历史悠久得多。 China has a lot bigger population than that of the US. 中国的人口比美国大得多。 =China is much__________(old) than the US. older Even more serious difficulties include freezing weather conditions and heavy storms. 甚至更严峻的困难包括极冷的天气状况和大暴雪。 Qomolangma is the highest mountain in the world. =Qomolangma is higher than any other mountain. =No mountain is as high as Qomolangma. 形容词和副词的比较级和最高级结构的转换 珠穆朗玛峰是世界上最高峰。 珠穆朗玛峰比其他任何一座山峰都高。 没有山峰和珠穆朗玛峰一样高。 The Caspain Sea is the deepest of all the salt lakes. =The Caspain Sea is _________ than any other salt lake in the world. =No salt lake is as _________as the Caspain Sea in the world. 里海是世界上最深的咸水湖。 里海比世界上其他任何咸水湖都深。 世界上没有咸水湖和里海一样深。 deeper deep 注意： 1.much,a little,even,a lot,far等可以修饰比较级。 2.形容词最高级前常有定冠词the，副词最高级前的the可以省去。形容词最高级前若有形容词性物主代词或者名词所有格，定冠词the省去。 The white shoes are a little __________________ than the black shoes. I like country music _______（更） than rock music. The boy is ______ than the girl. taller more expensive better Practice Alice is the _______ among these students. Lisa is one of the most ____________ (勤奋的)students in her class. Eric sang ________(well) in the competition. shortest hard-working best How do adjectives and adverbs change into comparative and superlative forms? 音节 原级 比较级 最高级 单音节和部分双音节 -er,-est long（长的） e-r,e-st large(大的) 辅+y ,y变 i+er,i+est happy(快乐的) 辅元辅，双写最后一字母+er,+est big(大的) 多音节和部分双音节 popular(受欢迎的) beautiful（漂亮的） bigger biggest more popular most popular longer longest most beautiful larger largest happier happiest more beautiful regular words(规则变化) irregular words(不规则变化) 原形 词义 比较级 最高级 good/well 好的；好地 bad/badly 坏的、差的；坏地 many/much 多的 little 少的 old 老的，旧的 far 远的；远地 better best worse worst more most less farthest/furthest older/elder farther/further least oldest/eldest 4a Fill in the blanks with the correct forms of the words in the box. 1. The Amazon River is one of the _______ rivers in the world. It's a little _______ than the Yangtze River. 2. Qomolangma is 8848.86 meters _______. It's one of the most ________ places for serious mountain climbers. 3. No ocean in the world is as _______ as the Pacific Ocean. 4. Although Japan is _______ than Canada, it is _______ smaller. big much popular long old high longest one of the+最高级+名复，Amazon River 指的是长度long a little+比较级 longer 基数词+单位+high/long/wide/deep...,Qomolangma珠峰指的是高度high high popular as+ 原级+as“和......一样......”,Pacific Ocean太平洋，指的是大小big big older much much修饰比较级 对严肃的登山者来说，珠峰是最受欢迎的地方之一。 ▲ 比较级+than ﹨ ﹨ ﹨ ﹨ ﹨ 亚马逊河是世界上最长的河流之一。 尽管日本比加拿大古老，但是他比加拿大（面积）小的多。 4b Write two comparisons about two topics.Write true facts. eg. Two rivers: the Yangtze River and the Amazon River ____________________________________________________________________________________________________________________________________________________________ 1.The Yangtze River is almost as long as the Amazon River. 2. The Amazon River is longer than the Yangtze,but the Yangtze is the longest river in China. the Yangtze River（长江),the longest river in China the Amazon River（亚马逊河）,one of the longest rivers in the world 几乎和......一样长 Two cities: ________________ and________________________ 1.___________________________________________________ 2._______________________________________________________________________________________________________ Handan（邯郸，河北） Beijing Beijing Handan Beijing is much bigger and busier than Handan. Beijing is not as old as Handan, and Handan is one of the oldest cities in Hebei. ? bigger/ smaller much busier larger/smaller population(人口) (not) as big/old as more beautiful more famous Shanghai Xi'an( 西安 ) Shijiazhuang(石家庄) Handan（邯郸） VS VS ? bigger/ smaller much busier larger/smaller population(人口) (not)as big/old as much older more beautiful more popular 1. Shijiazhuang is bigger and has a larger population than Handan,but Handan is much older than Shijiazhuang. 2. Shanghai is as beautiful as Xi'an,but Xi'an is more popular than Shanghai for visitors. Two animals: __________________ and ___________________ 1._______________________________________________ 2.___________________________________________________________________________________________________ elephant rabbit An elephant is much bigger and heavier than a rabbit. Rabbits have much more babies than elephants do every year. ? bigger/ smaller much stronger much heavier run faster eat more have more babies VS VS ? bigger/ smaller much stronger much heavier run faster as important as eat more have more babies smarter 1. A cow is much stronger than a dog,but a dog runs faster than a cow. 2. Elephants are taller and eat more than pandas,and elephants are as important as pandas.We should protect these animals. 4c Write five questions using comparisons.Then ask your partner your questions. 1.________________________________________ 2.________________________________________3.________________________________________ 4.________________________________________ 5.________________________________________ What is the highest building in our city? What is the best senior high(高中) in our city? What is the biggest museum in our city? What is the most popular park in our city? What is the most popular shopping center in our city? Yangguang Dasha(阳光大厦) Handan Museum(邯郸市博物馆) Congtai Park（丛台公园） Han Dan No.1 High School(邯郸市第一中学） Meilecheng（美乐城） Pair work A: What is the highest building in our city? B: Yangguang Dasha. A: What is the biggest museum in our city? B: It's Handan Museum. A: What is the most popular park in our city? B: It's ... Summary Homework 1. Read the sentences in Grammar Focus aloud and try to recite(背诵) them. 2. Write a short passage to describe how different among your family,such as height(身高)，personality(性格)， hobbies. You need to use comparisons. Lavf57.62.100 $$