八年级下册unit7SectionA课件

1、 Unit 7 Whats the highest mountain in the world？ Section AThe second longest riverin the world -Do you know its name? -It is Amazon. -Do you know how long it is? -Its about 6,500 kilometers long.The worlds highestmountain in the world.Do you know howhigh it is?It is 8,844 metershigh. QomolangmaDo yo

2、u know Sahara is the biggest desert in the world?Yes, it is about 9,600,000 square kilometers in size. Saharasize n.1. 大小大小CUWhats the size of the park?2. 尺码尺码,号号CThis shirt is your size.The worlds deepest salt lake The Caspian SeaDo you know that how deep the worlds deepest Salt lake?Yes, it is 1,0

3、25 meters deep.The longest river in Asia. The Yangtze RiverDo you know that the Yangtze River is the longest river in Asia?Yes, it is 6,300 kilometers long. Its 8,844 meters high. 它有它有8,844米高。米高。 It is meters high (long, wide). 它它米高（长米高（长,宽宽)。“有多长（宽，高有多长（宽，高）”时，时，将数词和数量单位放在表示长宽将数词和数量单位放在表示长宽高的形容词前高的

4、形容词前翻译句子翻译句子 1.这张桌子两米长，一米宽。这张桌子两米长，一米宽。2.这座山有这座山有1500米高。米高。 3.这栋楼这栋楼120米高。米高。4.这本字典有五厘米厚。这本字典有五厘米厚。5.这个湖有多深？这个湖有多深？ 1025米深。米深。The table is two meters long and one meter wide.The mountain is 1,500 meters high.The building is 120 meters tall.The dictionary is five centimeters thick.How deep is the lak

5、e? Its 1,o25 meters deep. 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.1b. Listen and complete the sentences.higherthe biggestthe deepestthe longest1c. Use the informati

6、on in 1b to make conversations.A: What is the highest mountain in the world? B: Qomolangma.A: What is the biggest desert in the world? B: Sahara.A: What is the deepest salt lake in the world? B: Caspian sea.A: What is the longest river in the world? B: Nile._ The Yangtze River is about _kilometers l

7、ong 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.2a. Listen and number the facts 1-4 in the order you hear them.6,3005,0005,46430024_ China is over _ years old. It has a much longer history than the US. The U

8、S is not even_ years old._ China is almost as big as the US, and it is the biggest country in Asia.132b. Listen again and fill in the blanks in 2a with the numbers in the box._ The Yangtze River is about _kilometers long and the Yellow River is_ kilometers long._ China has the biggest population in

9、the world. Its a lot bigger than the population of the US.6,3005,0005,464300246,3005,464_ 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.135,000300A: Did you know that China

10、is one of the oldest countries in the world?B: Yes, I did. Its much older than my country.2c. Make conversations using the information in 2a.1 Feel free to ask me anything on todays Great Wall tour.在今天的长城游中，大家尽管随意问我任在今天的长城游中，大家尽管随意问我任何问题。何问题。feel free to do sth 随意做某事随意做某事Can I use your bathroom?Yes,

11、 feel free.2 ancient adj.古代的古代的 古老的古老的My grandmother often tells me old ancient stories.3 protect v.保护保护Sunglasses are used for protecting our eyes in the sun.4 As far as I know, there are no man-made objects as big as this.据我所知，再没有像它这样在的人造物体据我所知，再没有像它这样在的人造物体了。了。as far as I know 据我所知据我所知As far as I

12、 know , Tom has a twin sister.5 achievement n.成就成就 成绩成绩 achieve v.This is a wonderful achievement in Chinese history.6 southwestern adj. 西南的西南的 southwest n.Our hometown is in the southwestern part of this city.7 thick adj.厚的厚的 浓的浓的There is thick fog in the morning in this mountain area.8 Even more s

13、erious difficulties include freezing weather conditions and heavy storms.更加严峻的困难包括极冷的天气状况和巨大的更加严峻的困难包括极冷的天气状况和巨大的风暴。风暴。1）difficulty 困难困难 If you have any difficulties, you can call me for help.We found the house without difficulty.2）include v. 包括包括Our subjects include Chinese , English math and so on

14、.9 freezing adj. 冰冻的冰冻的It is freezing outside, and put on your winter coat.10 condition n. 条件条件 状况状况The piano was in good condition.11 take in Large fish takes in small fish in the sea .12 succeed v.成功成功 success n. successful adj. successfully adv.I hope she will succeed soon by working hard.13 chal

15、lenge v.挑战挑战It is a big challenge for the girl to do housework by herself.The boy challenged his friend to a fight after school.14 in the face of 面对面对They showed their courage in the face of difficulty.15 The spirit of these climbers shows us that we should never give up trying to achieve our dreams

16、.这些登山者的精神向我们表明：我们决不应该这些登山者的精神向我们表明：我们决不应该放弃实现自己的梦想的尝试。放弃实现自己的梦想的尝试。1）give up doing sth 放弃做某事放弃做某事He gave up smoking after he got out of the hospital.2）achieve our dream实现。实现。=make our dream come trueHe achieved great success in a short time.16 force n. 力量力量The army was the most important force in th

17、e country. 17 nature n. 大自然大自然The beauty of nature makes people forget trouble.longestlongerhighpopularbigoldermuchReview adj n long length wide width deep depth high height tall tallness thick thickness 。的高度。的人口。的长度。的速度每小时人造建筑the height of the population ofthe length ofthe speed ofper hourman-made

18、structures你能写出它的同义句吗你能写出它的同义句吗 ？The mountain is 1,500 meters high.The mountain is 1,500 meters in height.The height of the mountain is 1,500 meters.世界最高的山最长的河第二长河最大的沙漠竹林最普遍的动物人口最密集的地方最古老的文明国家之一像。一样the worlds highest mountainthe highest mountain in the worldthe longest riverthe second longest riverth

19、e biggest desertbamboo foreststhe most common animalsthe most populated placeone of the oldest civilizationsasas1) The Sahara is the biggest desert in the world.形容词最高级前通常必须用定冠词形容词最高级前通常必须用定冠词 the，副词最高级前可不用。副词最高级前可不用。形容词形容词most前面没有前面没有the，不表示最高，不表示最高级的含义，只表示级的含义，只表示非常非常。It is a most important problem

20、.=It is a very important problem.Grammar 注意注意: 使用最高级要注意将主语包括在比使用最高级要注意将主语包括在比较范围内。较范围内。(错错) Tom is the tallest of his three brothers.(对对) Tom is the tallest of the three brothers.2) 下列词可修饰最高级，下列词可修饰最高级，by far, far, much, mostly, almostThis hat is nearly / almost the biggest.注意：注意：a. very可修饰最高级可修饰最高级

21、,但位置与但位置与much不同。不同。This is the very best.This is much the best.b. 序数词通常只修饰最高级。序数词通常只修饰最高级。Africa is the second largest continent.3) 句型转换：句型转换：Mike is the most intelligent in his class.Mike is more intelligent than any other students in his class.4) 否定词语否定词语+比较级比较级，否定词语否定词语+ so as结构表示最高级含义。结构表示最高级含义。Nothing is so easy as this.=Nothing is easier than this.=This is the easiest thing.1. -Which is _ season in Beijing? (2003年年) -I think its autumn.A. good B. better C. best D. the best 该题的核心词