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最新人教版八年级英语下册Unit-7-Section-A-1公开课课件.ppt

1、Unit 7 Section APeriod 1(1a-2d)Do you know these numbers?How to read them?8844.43 meters 1,025 meters deep6,600 kilometers long6,211.31 kilometers long3,219 kilometers wideWhich is the highest mountain in the world?Which is the longest river in the world?Do you know this?Qomolangma runs along the bo

2、rder 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.The Sahara is the biggest desert in the world.It is located in the northern Africa.Its climate conditions are very bad and is one of the earths most unsuita

3、ble for biological survival.The Caspian Sea(里海里海)is the biggest inland lake in the world.The max depth is 1,025m(in the southern part).It lies in the border between Asia and Europe.The Nile is the longest river in the world.Its more than 6,600 kilometers long.It runs through 9 countries.Its one of t

4、he largest river flowing through the international states in the world and runs into the Mediterranean Sea(地中海地中海)in the end.The Yangtze River is the third longest river in the world,and the first Asian river.Its 6211.31 kilometers long.The Yangtze River Basin,east-west width of 3,219 kilometers,abo

5、ut 966 kilometers wide north-south,passing through 11 provinces.It runs into the East Sea in Shanghai finally.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 high 8,844.43 meters high.

6、8,844米高米高 meters high(long,wide,)米高米高(长,宽长,宽)英语表示英语表示“有多长有多长(宽,高宽,高)”时,一般时,一般将将数词和数量单位放在表示长宽高的形容词前数词和数量单位放在表示长宽高的形容词前作状语。作状语。The wall is 1.7 meters wide.A:How high is Qomolangma?B:Its 8,844.43 meters high.The biggest desert in the world is about 9,600,000 square kilometers in size.How big is the Sah

7、ara?Its about 9,600,000 square kilometers in size.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 longestUse

8、the information in 1b to make conversations.A:What is the highest mountain in the world?B:Qomolangma.Practice in pairs like this:A:What is the in the?B:What is the longest river in the world?The Nile.What is the biggest desert in the world?The Sahara.What is the longest river in Asia?The Yangtze Riv

9、er.Make sentences with the following adjectives to describe things.the highest the longest the deepest the biggestSamples I live in the highest building in the city.Meili has the longest hair in the class.That swimming pool is the deepest one Ive ever swam in.We have the biggest field of all the hig

10、h schools in town.6,300 5,000 5,464 300Practice reading the following four numbers.Which is the biggest number?Which is the smallest number?Listen and number the facts 1-4 in the order you hear them._ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long._ China has

11、the biggest population in the world.Its a lot bigger than the population of the US.6,300 5,000 5,464 30042_ 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.13Listen again and fi

12、ll in the blanks in 2a with numbers in the box._ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long._ China has the biggest population in the world.Its a lot bigger than the population of the US.6,3005,464_ China is over _ years old.It has a much longer history th

13、an 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.5,000300Make conversations using the information in 2a.A:Did you know that China is one of the oldest countries in the world?B:Yes,I did.Its much older than my country.温馨提示:温馨提示:Did you

14、know?是一般过去时态,问是一般过去时态,问你过去是否知道。你过去是否知道。Do you know?是一般现在时态,问是一般现在时态,问你目前是否知道。你目前是否知道。或者说,当你真正在提问时,问对方知或者说,当你真正在提问时,问对方知不知道一件事情,用不知道一件事情,用Do you know.?当你用疑问语气而真正想告诉对方一个当你用疑问语气而真正想告诉对方一个事实,用事实,用 Did you know.?A:Did you know that Yangtze River is the longest river in China?B:Yes,I did.Its 6,300 meters

15、long.A:Wow!Thats long!A:Did you know that China has the biggest population in the world?B:Yes,I did.Its a lot bigger than the population of the US.A:Wow!Thats amazing!1.What is the conversation about?2.How long is the Ming Great Wall?Its about a tour to the Ming Great Wall.Its about 8,850 kilomoters

16、 long.中国的长城共有近一万公里,东起河北秦皇岛中国的长城共有近一万公里,东起河北秦皇岛的山海关,西到嘉峪关,这是明代修筑长城的两的山海关,西到嘉峪关,这是明代修筑长城的两个最大关口,北京境内的长城有个最大关口,北京境内的长城有600余公里,比余公里,比较著名的有八达岭长城、金山岭长城、司马台长较著名的有八达岭长城、金山岭长城、司马台长城、慕田峪长城、居庸关长城和箭扣长城等。城、慕田峪长城、居庸关长城和箭扣长城等。The Great Wall 慕田峪长城慕田峪长城Make a dialogue,talking about a place of interest.One acts as th

17、e guide and the other the tourist.Use 2d as an example.Read the words and expressions loudly.Qomolangmathe Nilethe Caspian Sea the Saharathe Yangtze Riverthe Yellow Riverthe Ming Dynastythe Ming Great Wall珠穆朗玛峰珠穆朗玛峰尼罗河尼罗河里海里海(世界最大的世界最大的咸水湖咸水湖)撒哈拉沙漠撒哈拉沙漠长江长江黄河黄河明朝明朝明长城明长城squaremeterdeepdesertpopulati

18、onAsiafeel freetourn.平方;正方形平方;正方形n.米;公尺米;公尺adj.深的;纵深的深的;纵深的n.沙漠沙漠n.人口;人口数量人口;人口数量n.亚洲亚洲(可以可以)随便随便(做某事做某事)n.v.旅行;旅游旅行;旅游touristwall amazingancientprotectwideas far as I known.旅行者;观光者旅行者;观光者n.墙墙adj.令人大为惊奇的令人大为惊奇的;令人惊喜令人惊喜(或惊叹或惊叹)的的adj.古代的;古老的古代的;古老的v.保护;防护保护;防护adj.宽的;宽阔的宽的;宽阔的就我所知就我所知1.China has the b

19、iggest population in the world.population n.人口;人口数量人口;人口数量 The population of this city is six million 这个城市的人口是这个城市的人口是600万。万。The population of China is much larger than that of the USA.中国的人口比美国的人口多很多。中国的人口比美国的人口多很多。population作主语的时候,谓语动词通常用作主语的时候,谓语动词通常用单数形式;当主语是表示单数形式;当主语是表示“人口的百分之几、人口的百分之几、几分之几几分之几

20、”时,谓语动词用复数形式。时,谓语动词用复数形式。询问人口数量时要用询问人口数量时要用“Whats the population of.?”提问,而不用提问,而不用how many或或how much等提问。等提问。表示人口表示人口“多多”要用要用large或或big;表示人口;表示人口“少少”要用要用small。1).The population of Shanghai is _ than that of Guiyang.A.smaller B.larger C.less D.large2).-_ is the population of the town?-Over 20,000.And

21、a third of the population _ workers of the car factory.A.What,are B.How many,are C.What,is D.How many,is BA3).Which city has _ population,Beijing,Guiyang or Xingyi?Xingyi,of course.A.the largest B.the smallest C.the most D.the least4).-_ the population of China?-1.3 billion.Everyone knows China has

22、the _ population in the world.A.What are,most B.What is,largest C.How many are,most D.How many are,largestBB2.Feel free to ask me anything on todays Great Wall tour.feel free是英语口语中一个常用表达。是英语口语中一个常用表达。feel free to do sth.,让你无需拘束,只管按照,让你无需拘束,只管按照自己的意愿去做某事。自己的意愿去做某事。A:Can I use your bathroom?我可以用一下你的卫生

23、间吗?我可以用一下你的卫生间吗?B:Yes,feel free.可以,请随意。可以,请随意。I am not hungry.Feel free to eat my apple.我不饿。你想吃我的苹果就吃吧。我不饿。你想吃我的苹果就吃吧。Feel free to contact me if you still need any help.如果还需要帮忙,尽管联系我。如果还需要帮忙,尽管联系我。as far as I know是一个固定的表达方式,是一个固定的表达方式,还可以说还可以说so far as I know,意思是,意思是“据我据我所知所知”。2.As far as I know,the

24、re are no man-made objects as big as this.As far as I know,Jacks got twin sisters.就我所知,杰克有一对孪生姐妹。就我所知,杰克有一对孪生姐妹。Theyre not coming today,so far as I know.他们今天不来了,就我所知是这样的。他们今天不来了,就我所知是这样的。As far as I know,he will be away for three months.据我所知据我所知,他将离开三个月。他将离开三个月。man-made satellite 人造卫星人造卫星 Nylon is a

25、 man-made fibre.尼龙是一种人造纤维。尼龙是一种人造纤维。man-made是是合成形容词合成形容词,类似的与,类似的与-made合成的形容词还有:合成的形容词还有:ready-made(现成的;现成的;做好的做好的),hand-made(手工的手工的),homemade(自制的自制的),tailor-made(量体定制的量体定制的)等。等。man-made adj.人造的,人工的,合成的人造的,人工的,合成的feel freethe most popular questiontalk about the Ming Dynastythe ancient emperorsthe main reasonas far as I knowthe Ming Great WallHow long is the wall?Its about 8,850 kilometers long.This makes it the longest wall in the world.Its the most famous part.

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