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(共27张PPT)人教版八年级下Unit 7 What’s the highest mountain in the world Section A 2a-2dPeriod 2To learn and master the new words and expressions : population, Asia, tour, tourist, wall, amazing, ancient, protect, wide, man-made, feel free, as far as I know.To be able to catch numbers in listening.To learn to talk about geography and nature.Learning goalsWarm-upRead the numbers below.5,0006,3005,465300six thousand and three hundredfive thousand, four hundred and sixty-fivefive thousandthree hundredCompare the four numbers by using comparatives or superlatives.6,300 is the biggest / largest number.6,3005,0005,465 300300 is the smallest number.6,300 is a lot bigger than 300.6,300 is much bigger than 5,000.5,000 is almost as big as 5,464.PresentationChina is one of the oldest countries. It’s over ________ years old. In fact, it’s one of the four ancient countriesin the world.As Chinese, how much do you know about our motherland 5,000adj. 古代的；古老的It has__________population on the earth.the largestIt’s ___________countryin Asia.the biggestn. 亚洲n. 人口；人口数量It has the longest wall —— ____________ in the world.Millions of tourists around the world come to visit _____________ every year.The Great Wallthe Great Wallthe Great Walltourist n. 旅行者；观光者n. 墙The Yangtze River is the longest river in Asia,the third longest in the world.The Yangtze RiverQomolangmaQomolangma is the highest moutain in the world.It also has some famous mountains and rivers.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, and it is the biggest country in Asia.6,3005,0005,465 300ListeningListen and number the facts [1-4] in the order you hear them.2a2134Listen again and fill in the blanks in 2a with the numbers in the box.2b和……一样大6,3005,4645,000300基数词 + 单位词 + 形容词PresentationMike：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.Listen，read and underline the sentences including comparatives or superlatives.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.“Did you know” is more polite than “Do you know” here.This sentence means:It’s OK if you didn’t know, because I can share the information with you.(Then the person who is asked the question will not feel uncomfortable if he / she did not know. )2. You might know, but it doesn’t matter because I can still share the information with you and we can talk about it more.Did you know that China is one of oldest countries in the world ExplanationMake conversations using the information in 2a.2cPair workA: Did you know that China is one of the oldestcountries in the world B: Yes, I did. It’s much older than my country.Read the conversation in 2d and answer the questions.1. What is the conversation about It’s about a tour to the Ming Great Wall.2. How long is the Ming Great Wall It’s about 8,850 kilometers long.3. What does the guide say about the wall It’s quite tall and wide.It’s the longest wall in the world.There are no man-made objects as big as this.…Role-playGuide: Feel free to ask me anything on today's Great Wall tour.Tourist 1: How long is the wall Guide: Ah, the most popular question! If we're only talking about the parts from the Ming Dynasty, it's about 8, 850 kilometers long. This makes it the longest wall in the world.Tourist 2: Wow, that's amazing! Why did the ancient emperors build the wall n. & v. 旅行；旅游adj. 令人大为惊奇的；令人惊喜（惊叹）的Listen, read and role play the conversation.（可以）随便（做某事）,其后接动词不定式。Guide: The main reason was to protect their part of the country. As you can see, it's quite tall and wide. As far as I know, there are no other man-made objects as big as this.Tourist 3: Is Badaling part of the Ming Great Wall Guide: Yes, it's the most famous part.v. 保护；防护adj. 宽的；宽阔的就我所知adj. 人造的Language points1. China has the biggest population in the world. (教材 P50 2a)population n. 人口；人口数量① population 是集体名词，在句中作主语时，谓语动词用单数形式。The population of the world continues to increase, but in some areas the population is falling.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.Summary④ 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。③ 询问人口多少时，用“What is the population of … ”或“How large is thepopulation of … ”。What/How large is the population of Henan Province 2. Feel free to ask me anything on today’s Great Wall tour. (教材 P50 2d)tour n. & v. 旅行；旅游tour在此处作可数名词，还可以作动词用。They went on a tour around Europe last year. ( n.)We toured Italy for our holiday last year. ( v.)【拓展延伸】tour (v.) + 后缀 -ist → tourist (n.) 旅行者；观光者The tourists (n.) toured (v.) Hong Kong for holidays. They all enjoyed their tour (n.).3. Wow, that’s amazing. (教材 P50 2d)amazing adj. 令人大为惊奇的；令人惊喜（惊叹）的amazing一般用于修饰事物，amazed（感到惊奇的）常用于修饰人。be amazed at 意为“对……感到惊讶”。The amazing magic show made me feel so amazed.I’m amazed at his rapid progress.【拓展延伸】类似的以 -ing（令人……），-ed（感到……）结尾的形容词：interesting/interested, surprising/surprised, relaxing/relaxed, moving/moved,tiring/tired, boring/bored, exciting/exited, …4. The main reason was to protect their part of the country.(教材 P50 2d)protect v. 保护；防护protect此处用作及物动词, protect… against/from…“保护……免于……”。protection作不可数名词，意为“保护；防卫”。Are we doing enough to protect the environment He wears sunglasses to protect his eyes against/from the strong sunlight.It’s parents’ duty to provide protection for their children.Language pointsExercises1.Hangzhou will be the third Chinese city to host the _______(Asia)Games after Beijing and Guangzhou.2.It’s _______ (amaze) for him to pass the English exam this time.3.A lot of _______(tour) went to China to visit the Great Wallevery year.一、用所给单词的适当形式填空。Asianamazingtourists1.孩子们，桌子上的东西随便吃。Children, _______ ______ ______ ______anything on the table.2.就我所知，他喜欢下国际棋。______ ______ ______ _____ ______, he likes playing chess.3.这个房间和那个房间一样大。This room is ______ _____ ______ that one.二、根据汉语意思完成句子。feelfree to eatAsfar as Iknowasbig asSummaryNew wordsExpressionsSentences① China has the biggest population in the world.② Chian is one of the oldest countries in the world.③ As far as I know, there are no other man-made objects as big as this.population Asia tour touristwall amazing ancient protect wide man-madefeel free as far as I know protect…from…amazedHomework1. Read the listening material of this period.2. Recite the words and expressions in this lesson.3. Recite the conversation in 2d.https://www.21cnjy.com/help/help_extract.php

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