【公开课】人教新目标版八下Unit 7《What's the highest mountain in the world？》SectionA 1a-2c 优质课件+素材包

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人教版 八年级下册SectionA 1a-2cUnit 7 What’s the highest mountain in the world?1. 能够听懂谈论“自然地理之最”的对话内容，并掌握物体长宽高及面积的表达等。2. 能够掌握大数字的读法，并运用大数字和比较级、最高级谈论“自然地理之最”。3. 能够了解我国和世界的一些“自然地理之最”，并通过对比加深对祖国的了解和热爱。1. What’s video about? It’s about the Changbai Mountains.2. What is the deepest mountain lake around the world? The Tianchi Lake (in Jilin province). Some geographical facts about Changbai Mountains Post-lsteningCan you read the numbers about the Changbai Mountains?2,770,0002,1003002042,000,000,0002250930two thousand, one hundredtwo million, seven hundred and seventy thousandtwo billiontwo hundred and fourthree hundred=2.77 milliontwo point seven seven millionHow to read larger numbers? 百百万 千十亿two billion and sixty-five million, six hundred and nine thousand, nine hundred and eighty point three four.点billion million thousand hundred point 2, 065, 609, 980. 34three four读时，将每三位数看做一个单位，自右向左依次为thousand千，million百万，billion十亿。每个单位按百、十、个位向右读。其中百位到十位之间要加入 and。小数点读point。Are you clear?Let’s have a try.Can you read these large numbers? 7,742.33 1,390,000,0003,563,129 2,000,060,000three million, five hundred and sixty-three thousand, one hundred and twenty-nine.one billion, three hundred and ninety million.seven thousand, seven hundred and forty-two point four three.two billion and sixty thousand.9,600,0001,0256,6718,848.86six thousand, six hundred and seventy-one.one thousand and twenty-five.nine million, six hundred thousand.eight thousand, eight hundred and forty-eight point eight six .What's the name of the mountain?/'haɪɪst//'dezət/What's the name of the desert?/'bɪgɪst/What's the name of the river?/'lɒŋgɪst/What's the name of the lake?/diːp/How形容词 (long / wide / high / deep / big …)be主语主语be基数词单位词形容词 (long / wide / high…)How形容词 (long / wide / high / deep / big …)be主语主语be基数词名词 (size / length / …)单位词inPredict and try to complete the sentences in 1b.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.What else will we know about these places?Let’s go on!“世界之最”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比其他任何山都高=最高=Qomolangma is the highest mountain in the world.总结：形容词比较级+than any other+单数名词=最高级+单数名词。 Teacher：Yesterday, we learned some important geographical facts. I hope you all still remember them. I’m going to test you now by asking a few questions. First, what’s the highest mountain in the world? Boy 1：Qomolangma! It’s higher than any other mountain in the world.Teacher：That’s right. And who can tell me what the Sahara is? Girl 1：The Sahara is the biggest desert in the world.地理事实Listen again and repeat. Teacher：Very good. And which is the deepest salt lake in the world? Girl 2：The Caspian Sea is the deepest of all the salt lakes.Teacher：You’re all so smart! Now, for the last question, which is the longest river in the world? Boy 2：I know! The Nile is the longest river in the world. Boy 1：And the Amazon is the second longest river in the world.Teacher：It seems that you know the answers to all my questions. Good job!“the+序数词+最高级+单数名词+in…”表示“是……中的第几……” Qomolangma is higher than any other mountain in the world. 该结构意为“比其他任何一个……都……”，指同一范围内比较，表示最高级含义。She is thinner than any other student in her class. = She is the thinnest in her class.other必不可少，用以将主语从比较对象中排除，避免逻辑矛盾。比较级 + than any other + 可数名词单数【特别提醒】如果比较对象不在同一范围内或不属于同一类别，应用“形容词/副词比较级 + than any（任何的） + 可数名词单数”。The Pacific Ocean is larger than any lake in the world. 练一练Hulunbuir is bigger than _____________ city in China.Hulunbuir is bigger than _____________ city in Anhui.any otheranyQomolangma.What is the highest mountain in the world?Before listening, pay attention to these numbers, Can you read them?3005,0005,4646,300five thousand, four hundred and sixty-fourfive thousandthree hundredsix thousand and three hundredCan you guess what are these numbers about ?May be they are about theheight,length,depth and area. ___ The Yangtze River is about ______ kilometers long and the Yellow River is ______ kilometers long.___ China has the biggest population in the world. It’s a lot bigger than the population of the US.___ 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.6,300 5,000 5,464 3004213长江___ The Yangtze River is about ______ kilometers long and the Yellow River is ______ kilometers long.___ China has the biggest population in the world. It’s a lot bigger than the population of the US.___ 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.6,300 5,000 5,464 30042136,3005,4645,000300a lot和much可修饰比较级。as...as...和...一样（同级比较）3. China has the biggest population in the world. ① population n. 人口；人口数量。是集体名词，在句中作主语时，谓语动词用单数形式。population 之前若有分数修饰做主语时,谓语动词则可用复数形式. 中国人口有17亿多。 The population of China is over 1.7 billion. 这儿大约有五分之三的人口是农民。 About three fifths of the population here are farmers. ② 表示有多少人口时，用“have/has a population of + 数词”，或“the population of … is + 数词”。China has a population of about 1.4 billion. = The population of China is about 1.4 billion.③ 询问人口多少时，用“What is the population of …?”或“How large is the population of …?”。What/How large is the population of Henan Province?④ 表示人口多少时，用 big/large 或 small 修饰，而不能用 many，much 或 few 等。India has a large population.类似的，表示 price（价格）高低，用 high 或 low，不能用 expensive 或 cheap；表示 temperature（温度）高低，用 high 或 low，不能用 hot 或 cold。 Listen and read.Mike：Hi, I’m Mike. I’m from the United States.Boy： Welcome to our class, Mike. We’re happy to meet you.Mike：Can you tell me a bit more about China?Girl： Sure! Did you know that China is one of the oldest countries in the world? It’s over 5,000 years old.Mike：Yes, I did. It’s much older than my country—in fact, the United States is one of the youngest countries in the world. It’s not even 300 years old.Boy： And China has the biggest population, too. It’s a lot bigger than the population of the United States.Mike：But China is about the same size as the US, right?Girl： Yes, and it’s the biggest country in Asia. We also have some famous rivers. The Yangtze River is the longest river in Asia. It’s about 6,300 kilometers long.Mike：Wow! I didn’t know that. I thought the Yellow River was longer.Boy： No, the Yellow River is 5,464 kilometers long. But both rivers are very important to China.Practice in pairs like this:A: Did you know that China is one of the oldest countries in the world?B: Yes, I did. It’s much older than my country.How much do you know about China?Today we talked about the geographical facts about China.China is … square kilometers in size. The highest mountain … is … It’s … meters high. It’s higher than any other mountain …I love China. Thank you for your listening.Report:Thank You