人教版英语八年级下册ppt课件

1、Unit 7,Whats the highest mountain in the world,Whats the highest mountain in the world,Its _,Qomolangma,Qomolangma is the highest mountain in the world. Its 8844.43 meters high,Its _,Whats the longest river in the world,The Nile is the longest river in the world. Its 6,671 kilometers long,The Nile,I

2、ts _,The Caspian Sea,The Caspian Sea is the biggest lake in the world. It is 1,025 meters deep,Whats the biggest lake in the world,Its _,Whats the biggest desert in the world,The Sahara is the biggest desert in the world. It is about 9,600,000 square kilometers in size,The Sahara,Match the facts you

3、 know,1a,1. 形容词比较级和最高级,比较级在词尾加er 或词前加more; 最高级在词后加est或词前加most,A与B相比更 A + be + 形容词比较级 + than + B,A与B一样 A + be + as +形容词原级 + as + B,A是中最 A + be + the +形容词最高级 + 范围,比较级前可用much, a little, even, far 等修饰,不规则变化,2. 数字表达法,英语中一千以上数字的表达方法是从数字的右端向左端数起，每三位数加一个逗号。从右开始，第一个逗号前数字后加thousand，第二个逗号前数字后加million，第三个逗号前数字后

4、加billion，然后一节一节分别表示,2648 16250064 5237166234,16, 250, 064,2,648,5, 237, 166, 234,3. 英语表示 “有多长(宽，高,一般将数词和数量单位放在表示长宽高的形容词前作状语，即 数词+ 数量单位(meters / kilometers) +长宽高 (long, wide ,high，) 米高（长，宽,The wall is 1.7 meters wide,小数点读point,Listen and complete the sentences,1. Qomolangma is _ than any other mounta

5、in 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,higher,the biggest,the deepest,the longest,1b,Use the information in 1b to make conversations,What is the highest mountain in the world,Qomolangma,1c,Listen and

6、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 the biggest population in the world. Its a lot bigger than the population of the US. _ China is over_ years old. It has a much longer history than t

7、he US. The US is not even _ years old. _ China is almost as big as the US, but it is the biggest country in Asia,4,2,1,3,2a,Listen again and fill in the blanks in 2a with the numbers in the box,6,300 5,000 5,464 300,_ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers

8、long. _ China has the biggest population in the world. Its a lot bigger than the population of the US,6,300,5,464,2b,_ 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,5,000,

9、300,6,300 5,000 5,464 300,population,1. 集合名词，常与 the 连用。作主语时 谓语用三单形式,2. 表示人口多少用 large/big和 small。 India has a large population,3. 问具体人口用 Whats the population of Whats the population of Canada,population,4. 当被分数，百分数修饰的时候，谓语动词用复数。About 60 percent of the population here are farmers,5. 表示一个国家或地区有多少人口时用 （

10、1）the population of The population of China is about 1.3 billion (2) have/has a population of China has a population of about 1.3 billion,Make 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 count

11、ry,Practice,2c,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个最大关口，北京境内的长城有600余公里，比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,The Great Wall,G: Feel free to ask me anything on todays Great Wall tour. T1: How long is the wall? G: Ah, the most popular question! If were only talking about the parts from the M

12、ing Dynasty, its about 8,850 kilometers long. This makes it the longest wall in the world,Role-play the conversation,2d,T2: Wow, thats amazing! Why did the ancient emperors build the wall? G: The main reason was to protect their part of the country. As you can see, its quite tall and wide. As far as

13、 I know, there are no man-made objects as big as this. T3: Is Badaling part of the Ming Great Wall? G: Yes, its the most famous part,1953年5月29日，英国登山队的新西兰人希拉里和夏尔巴人丹增诺盖从南坡登顶，成为目前被认可的最早成功登上珠穆朗玛峰的人,Edmund Hillary,Tenzing Norgay,日本登山运动员。1970年她登上了海拔 7577米的安纳布尔纳峰。1975年 5月16日，她从东南山脊路线登上了海拔8848米的珠穆朗玛峰，是世界登山运

14、动史上第1个踏上地球之巅的女性,Junko Tabei,1 9 6 0 年中国登山队 首次登上珠穆朗玛峰。 在挑战最后的难点 海拔8700米至8750米 处的悬崖时，登山队 员刘连满毅然用自己的身体搭成“人梯”，让另外 的队员踩着自己的肩膀往上攀登，这也就是中国 登山界著名的“人梯精神”。 “人梯精神”使中国人 在世界登山史上第一次创造了从北坡征服珠峰的 历史壮举,Read the article and match each paragraph with the main ideas,3a,Paragraph 1 Spirit of climbers Paragraph 2 Achievem

15、ents of climbers Paragraph 3 Facts and dangers,Qomolangma the Most Dangerous Mountain in the World,One of the worlds most dangerous sports is mountain climbing and one of the most popular places for this is the Himalayas. The Himalayas run along the southwestern part of China. Of all the mountains,

16、Qomolangma rises the highest and is the most famous. It is 8,844.43 meters high and so is very dangerous to climb. Thick clouds cover the top and snow can fall very hard. Even more serious difficulties,include freezing weather conditions and heavy storms. It is also very hard to take in air as you g

17、et near the top. The first people to reach the top were Tenzing Norgay and Edmund Hillary on May 29, 1953. The first Chinese team did so in 1960, while the first woman to succeed was Junko Tabei from Japan in 1975. Why do so many climbers risk their lives? One of the main reasons is because people w

18、ant to challenge themselves in the face of difficulties,1. succeed in doing sth 成功做某事 2. succeed with sth 在某方面获得成功,1. risk ones life 冒生命危险 2. take the risk of doing sth 冒险做某事,The spirit of these climbers shows us that we should never give up trying to achieve our dreams. It also shows that humans ca

19、n sometimes be stronger than the forces of nature,动词，强迫 force sb to do sth = force sb into doing sth They forced him to leave the town. = They forced him into leaving the town,Match each paragraph with the main ideas,Paragraph 1 Spirit of climbers Paragraph 2 Achievements of climbers Paragraph 3 Fac

20、ts and dangers,Read the article again and complete the chart,3b,snow hard,freezing weather conditions,heavy storms,1960 -The first Chinese team reached the top,1975 - Junko Tabei from Japan was the first woman to reach the top,stronger than the forces of nature,very high,most popular place,highest,m

21、ore famous,more serious difficulties,Answer the questions using information from the article,1. Where are the Himalayas? 2. How high is Qomolangma,In the southwestern part of China,Its 8,844.43 meters high,3c,3. Why do so many people try to climb this mountain even though it is dangerous? 4. What do

22、es the spirit of the climbers tell us,Because people want to challenge themselves in the face of difficulties,It tells us that we should never give up trying to achieve our dreams,Grammar focus,Whats the highest mountain in the world? Qomolangma. How high is Qomolangma? Its 8,844.43 meters high. Its

23、 higher than any other mountain,Which is the deepest salt lake in the world? The Caspian Sea is the deepest of all the salt lakes. Did you know that China is one of the oldest countries in the world? Yes, I did. Its much older than the US,Fill in the blanks with the correct forms of the words in the

24、 box,big much popular long old high,1. The Amazon River is one of the _ rivers in the world. Its a little _ than the Yangtze River. 2. Qomolangma is 8,844.43 meters _. Its one of the most _ places for serious mountain climbers,longest,longer,high,popular,4a,3. No ocean in the world is as _ as the Pa

25、cific Ocean. 4. Although Japan is _ than Canada, it is _ smaller,big,older,much,big much popular long old high,Fill in the blanks with the correct forms of the words in the box,4a,Write two comparisons about two topics. Write true facts,Two rivers: _ and _ _,The Yangtze River is almost as long as th

26、e Amazon River. The Amazon is longer than the Yangtze, but the Yangtze River is the longest river in China,the Yangtze River,the Amazon River,4b,Two cities: _ and _ 1. _. 2. _,Two animals: _ and _ 1. _. 2. _,Write five questions using comparisons. Then ask your partner your questions,1. _ 2. _ 3. _

27、4. _ 5. _,What is the highest building in our city,4c,What is the biggest park in our city,What is the longest river in our city,What is the cheapest shop in our city,What is the busiest station in our city,Compare facts about these two animals. Use the language in the box to help you make sentences

28、,is 350 cm tall weighs 5,000 kilos eats 150 kilos of food a day,1a,is 150 cm tall (standing on two legs) weighs 100 kilos eats 10 kilos of food a day,Example sentences: This elephant weighs many times more than this panda. (200 cm taller/shorter, weigh much more/less, eat much more/less, eat many ti

29、mes more,This panda is 200 cm shorter than this elephant,This elephant eats much more than this panda,比较级表示倍数： 结构：“倍数+ 比较级+than ” 表示：“比(大/小/长/短) 几倍” This box is three times bigger than that one. 这个盒子比那个盒子大三倍,大熊猫的新生儿在出生时体重仅是它母亲体重的0.1%，平均为145克左右。刚出生的大熊猫皮肤是粉红色的，带有稀疏的白毛。在12周后，长黑毛的地方开始变深。在一个月内，它们慢慢长出黑色的耳

30、朵、眼眶、腿和肩带，变的更像妈妈了。当幼仔68周大时，它们可以睁眼了，并开始长牙；三个月后就可以慢慢的爬动了,Listen and check() the numbers you hear,Listening,_100 _16 _20 _50 _120 _0.1 _0.2 _150,1b,Listen again and complete the sentences,1. At birth, a baby panda is about _ to _ kilos. 2. At birth, a baby panda is about _ cm long. 3. A baby panda is n

31、ot black. It is _ and it has no _. 4. A panda can live up to _ to _ years,0.1,0.2,15,pink,teeth,20,30,1c,Take turns telling your classmates about pandas,Practice,A: A baby panda cannot see. B: An adult panda weighs many times more than a baby panda,1d,Talk about pandas in your class. Use these words

32、 to help you,big, bamboo, zoo, popular, cute, black and white, Sichuan, famous, endangered, beautiful, forest, protect,2a,Scanning,This means moving your eyes quickly down the page to find specific information,2b,Scan the article to find out what these numbers mean,10, 12, 200, 2000,It is 8:30 a.m.

33、at the Chengdu Research Base. Lin Wei and the other panda keepers are preparing the milk for the baby pandas breakfast. At 9:00 a.m., they find that most of the babies are already awake and hungry. When the babies see the keepers, they run over with excitement and some of them even walk into their f

34、riends and fall over,Theyre so cute and lovely. I take care of them like theyre my own babies. I wash, feed and play with them every day. Theyre very special to me.” Lin Wei loves her job, but it is a difficult one,Pandas do not have many babies, maybe only one every two years. The babies often die

35、from illnesses and do not live very long. Adult pandas spend more than 12 hours a day eating about 10 kilos of bamboo. Many years ago, there were a lot more bamboo forests and pandas in China, but then humans started to cut down the forests. Scientists say there are now fewer than 2,000 pandas livin

36、g in the remaining forests. Another 200 or so live in zoos or research centers in China and other countries,An education program in Chengdu teaches children in cities about pandas and other endangered animals. They send people to schools to tell children about the importance of saving these animals.

37、 The children sing songs or make artwork about pandas and other wild animals. Teaching children is one way to help save pandas. The Chinese government is also planting more bamboo trees so there will be more forests for pandas to live in. We all hope that in the future there will be a lot more panda

38、s than now,10,12,200,2000,Adult pandas eat 10 kilos of bamboo a day,Adult pandas spend more than 12 hours eating a day,About 200 pandas live in zoos or research centers in China or other countries,Scientists say there are fewer than 2000 pandas living in the forests,What do these numbers mean,Scan t

39、he article again and write short answers to the questions,What is Lin Weis job,2. What do the baby pandas eat for breakfast,3. What do adult pandas eat,A panda keeper,Milk,Bamboo,2c,4. Why are pandas endangered,5. What is one way of saving pandas,Because humans started cutting down bamboo forests, c

40、ausing pandas to have fewer places to live in and less food to eat,One way is to plant more bamboo trees so there will be more forests for pandas to live in,Complete the sentences using words and phrases from the passage,The panda _ at the Chengdu Research Base are awake very early in the morning to

41、 _ breakfast for the baby pandas,keepers,prepare,2. Adult pandas do not have babies very _, and some of the babies only live for a short time because of _,often,illnesses,2d,4. A special program in Chengdu teaches _ about why pandas are _ and how to save them,endangered,5. The _ is also helping to s

42、ave the pandas. It is _ more trees to make more homes for the pandas,Chinese government,planting,3. Another reason for fewer and fewer pandas is because people are cutting down _ so pandas have fewer places to live,forests,children,Discussion,Discuss what other ways you think children can help to save the pandas,2e,鲸是大型哺乳动物，最长可达30多米，最小10米。最大的有十六万公斤重，最小的也有2000公斤。它们视力差，听觉却十分灵敏，能感受超声波，靠回声定位来寻找食物、联系同伴或逃避敌害。鲸鱼浑身是宝，用途广