新人教版八下unit7课件.ppt--（课件中不含音视频）

1、 Unit 7 Whats the highest mountain in the world？Topic:Facts about the world学习目标：学习目标：1 谈论地理与自然谈论地理与自然2 能表达较大的数字能表达较大的数字3 能熟练运用形容词和副词的比较级、最高级能熟练运用形容词和副词的比较级、最高级4 能熟练掌握重点单词和所有出现的短语能熟练掌握重点单词和所有出现的短语学习策略：学习策略：1 通过比较，了解中国以及世界地理知识通过比较，了解中国以及世界地理知识2 通过搜寻具体信息，培养寻读能力通过搜寻具体信息，培养寻读能力3 通过罗列事实及数据，初步学习说明文的写作通过罗列事

2、实及数据，初步学习说明文的写作文化知识：文化知识：1 了解我们和世界的一些了解我们和世界的一些“自然地理之最自然地理之最”中的知识中的知识2 了解我们明长城的基本知识了解我们明长城的基本知识3 了解珠穆朗玛峰及人类克服困难、挑战极限的精神了解珠穆朗玛峰及人类克服困难、挑战极限的精神4 了解国宝大熊猫与动物保护了解国宝大熊猫与动物保护长度meter/metre kilometer/kilometre mile英里 foot 英尺 inch 英寸重量gram克 kilogram 千克 pound磅five meters deep.deeply adv 深刻地；深沉地。depth n 深度popul

3、ation，作主语是谓语用单数。但是“分数、百分数+of the population”作主语时，谓语动词用复数。“某地有多少人口时”用The population of is Three fourths of the population in the city are from other parts of the country.这个城市四分之三的人口来自全国其他地方。The population of the city is three million.这个城市的人口是三百万。对人口提问用How large/big或What.Whats the population of China?

4、=How large is the population of China.中国有多少人口？have a large population 人口多have a small population 人口少tour旅行，周游，观光，主要目的地是游览或视察，距离可长可短，常带有“最后回到出发地”的含义。一般团队游都是tour，带有导游的是GuideTour。法国5日游：5-dayTourtoFranceHeismakingatouroftheworld.他周游世界去了ancient，指很久以前发生的货很久以前就存在的了。This story happened in ancient times.这个故事

5、发生在古代。old 老的，年代已久的，形容人或动物年老，东西陈旧。protectfrom表示“保护不受侵袭；挡住；防御”You should protect the children from catching a cold.你应该防备孩子们受凉。protection n 保护；保卫width n 宽度widely adv 广泛地反义词：narrow adj 窄的；狭窄的a wide road 很宽的路achieve 指实现成绩、目标，主语是人achieve his goal.实现他的目标come true 指实现梦想、蓝图、计划，主语是物the dream come true.梦想实现inc

6、lude included included includingincluding为介词，意为包含，包括including me.包括我included adj 包括在内的me included 包括我succeed in doing sth=be successful in doing sth=have success in doing sth 成功地做某事He succeeded in solving the problem.successfully adv 成功地force forced forced forcing 强迫；迫使force sb to do或into doing sthT

7、hey forced him to sing.mountaindesertriverlakeoceansalt lakefresh lake-Do you know its name?-The Nile-Do you know how long it is?-Its about 6,671 kilometers long.Its the longest river in the world中文名中文名 尼罗河外文名外文名 Nile River发源地发源地 非洲东北部布隆迪高原地理位置地理位置 非洲东北部长长 度度 6670公里流域气候流域气候 热带草原气候 热带沙漠气候注注 入入 地中海主要分

8、支主要分支 白尼罗河 青尼罗河The second longest river in the world.-Do you know its name?-It is Amazon.-Do you know how long it is?-Its about 6,500 kilometers long.中文名称中文名称 亚马孙河外文名称外文名称 The Amazon River别别名名 亚马逊河所属地区所属地区 南美洲地理位置地理位置 南美洲北部人人口口非常少（流域地区）气候条件气候条件 热带雨林气候（流域地区）著名景点著名景点 亚马逊热带雨林流域面积流域面积 691.5万平方千米长长度度 644

9、0km源头位置源头位置 安第斯山脉平均流量平均流量 219000m/s流经国家流经国家 巴西，秘鲁，哥伦比亚The longest river in Asia.The Yangtze RiverThe Yangtze River is the longest river in Asia.And it is the third longest river in the world.It is 6,300 kilometers long.中文名中文名 长江外文名外文名 Changjiang River/Yangtze River别别名名 扬子江、天堑、九派母亲河河河长长 6397公里沿岸重要城市沿

10、岸重要城市 重庆、宜昌、武汉、南京、上海主要支流主要支流 嘉陵江、乌江、汉江、赣江等8条发源地发源地 各拉丹冬峰-沱沱河所属水系所属水系长江水系流经地区流经地区 青海省、上海等11个省、区、市流域面积流域面积 180万平方千米The highest mountain in the world.Do you know howhigh it is?It is 8,844.43 meters high.Qomolangma中文名称中文名称 珠穆朗玛峰英文名称英文名称 Mt.Qomolangma别别称称 圣母峰、萨加玛塔峰所属山系所属山系 喜马拉雅山地理位置地理位置 中国、尼泊尔交界终终点点 8844

11、.43米经纬度经纬度275917 N；865531E主权归属主权归属 中华人民共和国 尼泊尔 Do you know Sahara is the biggest desert in the world?Yes,it is about 9,600,000 square kilometers in size.Sahara撒哈拉沙漠约形成于二百五十万年前，是世界第二大荒漠（仅次于南极洲），也是世界最大的沙质荒漠。它位于非洲北部，该地区气候条件非常恶劣，是地球上最不适合生物生存的地方之一。其总面积约容得下整个美国本土。“撒哈拉”是阿拉伯语的音译，在阿拉伯语中“撒哈拉”为大沙漠，源自当地游牧民族图阿雷格

12、人的语言，原意即为“大荒漠”。中文名中文名 撒哈拉沙漠外文名外文名 the Sahara(Desert)面面 积积 约906万平方千米位位 置置 非洲北部The worlds deepest salt lake The Caspian Sea Do you know that how deep the worlds deepest Salt lake?Yes,it is 1,025 meters deep.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.

13、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 lake?Its 1,025 meters deep.Language Goal:Talk about geography and natureQomolangma about 9,600,000 square

14、 kilometers in sizeThe Sahara 1,025 meters deepThe Caspian Sea 6,671 kilometers longThe Nile 8,844.43 meters high 1a.Match the facts you know.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

15、 in the world.1b.Listen and complete the sentences.higherthe biggestthe deepestthe longest1c.Use the information 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:Casp

16、ian sea.A:What is the longest river in the world?B:Nile._ 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.2a.Listen and number the facts 1-4 in the order you hear them.

17、6,3005,0005,46430024_ 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.13a bit,a little,much,many,a lot,lots,any,even可以修饰比较级2b.Listen again and fill in the blanks in 2a with the n

18、umbers 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.6,3005,0005,464300246,3005,464_ China is over _ years old.It has a much longer history than the US.T

19、he US is not even_ years old._ China is almost as big as the US,and it is the biggest country in Asia.135,000300a bit,a little,much,many,a lot,lots,any,even可以修饰比较级 China has the biggest population in the world.一、一、population常与定冠词常与定冠词the连用连用,作主语用时作主语用时,谓语动谓语动词常用第三人称单数形式。词常用第三人称单数形式。二、当主语是表示人口的百分之几、几

20、分之几二、当主语是表示人口的百分之几、几分之几时时,谓语谓语动词用复数形式。动词用复数形式。About seventy percent of the population in China are farmers.三、有时三、有时population可用作可数名词可用作可数名词,其前可用不定冠其前可用不定冠词。词。China has a population of about 1.3 billion 四、表示人口的四、表示人口的多多或或少少,不用不用much或或little,而而要用要用large或或small。五、询问某国、某地有多少人口时五、询问某国、某地有多少人口时,不用不用How mu

21、ch.?,而用而用How large.?;在问具体人口时用在问具体人口时用What.?。The worlds population is increasing faster and faster.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.2c.Make conversations using the information in 2a.明长城是明朝在北部地区修筑的军事防御工程，亦称边墙，区别于由秦始皇所修的万里长

22、城。国家文物局和国家测绘局采经近两年的调查与测量，于2009年4月18日首次公布明长城数据：其东起鸭绿江畔辽宁虎山，西至祁连山东麓甘肃嘉峪关，从东向西行经辽宁、河北、天津、北京、山西、内蒙、陕西、宁夏、甘肃、青海十个省（自治区、直辖市）的一百五十六个县域，总长度8851.8公里。其中，人工墙体的长度为六千二百五十九点六公里；壕堑长度为三百五十九点七公里；天然险长度为二千二百三十二点四公里。东部险要地段的城墙，用条石条石和青砖青砖砌成十分坚固。东起鸭绿江鸭绿江，西至嘉嘉峪关峪关，蜿蜒六千余公里六千余公里，气势宏伟气势宏伟，是世界上的世界上的一个奇迹。中文名中文名 明长城 外文名外文名 Ming

23、Great Wall 修建时期修建时期 明朝 总长度总长度8851.8公里 作用作用防御北方蒙古游牧统治者的骚扰 人工墙体人工墙体6259.6千米 位置位置 中国北方 气候类型气候类型 温带大陆性气候Guide：Feel free to ask me anything on todays Great Wall tour.Tourist 1：How long is the wall?Guide：Ah,the most popular question!If were only talking about the parts from the Ming Dynasty,its about 8,85

24、0 kilometers long.This makes it the longest wall in the world.2d.Role-play the conversation.Tourist 2:Wow,thats amazing!Why did the ancient emperors build the wall?Guide:The main reason was to protect their part of the country.As you can see，its quite tall and wide.As far as I know,there are no man-

25、made objects as big as this.Tourist 3:Is Badaling part of the Ming Great Wall?Guide:Yes,its the most famous part.3a.Read the article and match each paragraph with the main ideas.Qomolangma the Most Dangerous Mountain in the World?One of the worlds most dangerous sports is mountain climbing,and one o

26、f the most popular places for this is the Himalayas.The Himalayas run along the southwestern part ofChina.Of all the mountains,Qomolangmarises 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 m

27、ore serious difficulties include freezing weather conditions and heavy storms.It is also very hard to take in air as you get 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 I960,while the first woman to succeed was

28、 Junko Tabei from Japan in 1975.Why do so many climbers risk their lives?One of the main reasons is because people want to challenge themselves in the face of difficulties.The spirit of these climbers shows us that we should never give up trying to achieve our dreams.It also shows that humans can so

29、metimes be stronger than the forces of nature.Paragraph 1 Spirit of climbersParagraph 2 Achievements of climbers Paragraph 3 Facts and dangersParagraph 1List four dangers for climbers:it can snow heavily;Freezing weather conditions;Heavy storm;very hard to take in air as you get near the top3b.Read

30、the article again and complete the chart.thick clouds;Paragraph 2List three achievements:1960-The first Chinese team did so;1975 Junko Tabei from Japan was the first woman to reach the top 1953-Tenzing Norgay and Edmund Hillary were the first to reach the top;Paragraphs 1&3List four comparisons:most

31、 dangerous sport;highest;most popular places;the most famous;more serious difficulties;stronger than the forces of nature1.Where are the Himalayas?2.How high is Qomolangma?3c.Answer the questions using information from the article.The Himalayas run along the southwestern part of China.It is 8,844.43

32、 meters high.3.Why do so many people try to climb this mountain even though it is dangerous?4.What does the spirit of the climbers tell us?One of the main reasons is because people want to challenge themselves in the face of difficulties.The spirit of these climbers shows us that we should never giv

33、e up trying to achieve our dreams.It also shows that humans can sometimes be stronger than the forces of nature.1.Lily gets up _(early)than Lucy.2.Which goes _(slowly),Tom or Jim?3.This book is _ (interesting)than that one.earliermore slowly more interesting二二 根据所给词的适当形式填空根据所给词的适当形式填空 4.She works _

34、(careful)in her school.5.Who goes to bed _(late)Jim,Tom or Jack?6.I think turkey is _ (delicious)of all.the most carefully latestthe most deliciousUnit 7Whats the highest mountain in the world?Grammar FocusWhats the highest mountain in the world?Qomolangma.How high is Qomolangma?Its 8,844.43 meters

35、high.Its 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.Grammar Focus(二二)形容词的比较级和最高级形容词的比较级和最高级 comparatives and s

36、uperlatives with adj.and adv.short-shortersmall-smallernicenicersafesafer-bigthinheavyheavierhappyhappierbigbiggerthinthinnerdelicious more delicious interesting more interesting important more important carefully-more carefully quickly-more quickly slowly-more slowlyeasily-more easily大多数形容词和副词有三个等级

37、：大多数形容词和副词有三个等级：原级、比较级、最高级原级、比较级、最高级。一、一、形容词比较级的构成形容词比较级的构成 1.1.构成的不规则变化构成的不规则变化:2.2.构成的规则变化构成的规则变化:1.构成的不规则变化构成的不规则变化:e.g.good/well better best bad/badly worse worst many/much more most little less least far farther/further farthest/furthest2.构成的规则变化构成的规则变化:1)单音节词和少数双音节词一般在词尾单音节词和少数双音节词一般在词尾 后加后加-e

38、r 构成比较级构成比较级 或或-est构成最高级构成最高级.如：如：原级原级 比较级比较级 最高级最高级 cold colder coldest bright brighterbrightest young younger youngest2)以字母以字母 e 结尾的词只加结尾的词只加 r 或或-st 构成构成 比较级比较级和和最高级最高级。原级原级 比较级比较级 最高级最高级 nice nicer nicest fine finer finest large larger largest3)重读闭音节词末尾只有一个辅音字母重读闭音节词末尾只有一个辅音字母时时,先双写这个辅音字母先双写这个辅音

39、字母,再加再加-er或或-est。如如:big bigger biggest thin thinner thinnest 4)以以“辅音字母辅音字母+y”结尾的双音节词，结尾的双音节词，先改先改y为为i,再加再加-er或或-est。如：。如：easy easier easiest happy happier happiest5)多音节词和部分双音节词在词前加多音节词和部分双音节词在词前加more 或或most。如：。如：delicious more delicious most delicious interesting more interesting most interesting im

40、portantmore important most importantcarefully-more carefully-most carefullyquickly-more quickly-most quicklyslowly-more slowly-most slowlyeasily-more easily-most easily形容词形容词最高级最高级的构成的构成A:tall short quick thick light cool warm quiet wild calm the-esttalltallertallestB:heavy easy tidy dry busy happy

41、healthy hungry earlyy-i-estC:large late nice-st biggestD:bighothottestthin “双写双写”thinnestwet wettest fatfattestAdjective delicious dangerous interesting popular beautiful careful friendly the most-adj.3.不规则变化：不规则变化：原级原级比较级比较级最高级最高级 good/well better best bad/ill worse worst little less least many/muc

42、h more most far farther/further farthest/furthest old older/elder oldest/eldest最高级规则变化口诀最高级规则变化口诀：最高级，很容易，一般词尾加最高级，很容易，一般词尾加est。(cheap-the cheapest)词尾若有哑音词尾若有哑音e,直接就加直接就加st。(close-the closest)重读闭音节重读闭音节,单辅音字母要双写。单辅音字母要双写。(big-the biggest)辅音字母加辅音字母加y,记得把记得把y变为变为i。(friendly-the friendliest)多音节，考考你，多音节

43、，考考你，the most到底加哪里？到底加哪里？(popular-the most popular)总 结 late later-latestearly earlier earliestbigbigger-biggestfluently/difficultmore,most单音节词在词尾比较级单音节词在词尾比较级加加-er或最高级加或最高级加-est以以e结尾的词，只需加结尾的词，只需加r 或或st少数以少数以er,ow 结尾的双音结尾的双音节词加节词加-er-esttalltaller-tallest clevercleverer-cleverestcheap,cold,small,war

44、m,young,highfine,nice,safehappy,busy,dirty,easy,lazy,prettyfat,hot,red,thin,wet,sad narrow,yellow quickly,slowly,useful,careful,popular,modern,1.We are going to the Green Restaurant for lunch.(就划线部分提问就划线部分提问)_ you going for lunch?2.Sam is the shortest in his class.(改为同义句改为同义句)Sam is _ than _ _ stude

45、nt in his class.Sam is _ than _ _ students in his class.Sam is _ than_ _ in his class.3.How do you like Screen City?(改为同义句改为同义句)_ do you _ Screen City?Where areshorterany otherWhatthink ofshorterthe otheranyone elseshorter练习：改写句子练习：改写句子1.表示两者之间的选择表示两者之间的选择,可用可用“Which/Who +比较，比较，or?”.3.much/far/a lot

46、,even,still,a little/a bit 修饰比较级修饰比较级,表示程度表示程度.Who runs faster,he or she?He runs faster than she.He runs much faster than she.4.“比较级比较级+and+比较级比较级”表示表示“越来越越来越”5.“the+比较级比较级,the+比较级比较级”表示表示“越越,越越”6.表示不及另一方时，用表示不及另一方时，用“less+原级原级+than”(双音节和多音节词双音节和多音节词)He becomes healthier and healthier.The more you e

47、xercise,the healthier you will be.She is less healthy than he.He is healthier than she.Shanghai is becoming more and more modern.1.比较级比较级+and+比较级比较级 越来越越来越2.the+比较级比较级,the+比较级比较级 越越,越越 3._you are,_mistakes you will make.(你越仔细，做错的题目就越少）4._you eat,_youll be.(你吃得越多,就越胖)5.Alice writes well.Mary writes _

48、 than she.(甚至更好）The more carefulthe fewerThe morethe fatter1.The girl becomes _.(越来越漂亮）more and more beautiful2.The weather is getting _.(越来越槽糕）worse and worseeven/still better 3.Lin Tao is _ in the class because he never gets to school on time.（最懒的学生之一）（最懒的学生之一）4.Edison was_ in the world.(最伟大的发明家之一

49、）最伟大的发明家之一）one of the laziest studentsone of the greatest inventors1.The Yangtze River is_ river in the world.(第三长河）第三长河）the third longest2.The Atlantic is _ ocean in the world.(第二大洋）第二大洋）the second biggestExercise:一、翻译句子：一、翻译句子：4a.Fill in the blanks with the correct forms of the words in the box.1.

50、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_.big much popular long old highlongestlongerhigh Its one of the most_ places for serious mountain climbers.3.No ocean in the world is as _ as the Pacific Ocean.4.Although Japan