最新人教版八年级英语下册Unit-7-Section-A-2公开课课件.ppt

1、Unit 7 Section APeriod 2(3a-3c)Translate the phrases into English.随意随意最受欢迎的问题最受欢迎的问题谈论谈论明朝明朝古代君王古代君王主要原因主要原因据我所知据我所知明长城明长城feel freethe most popular questiontalk about the Ming Dynastythe ancient emperorsthe main reasonas far as I knowthe Ming Great WallWhich is the highest mountain in the world?Whic

2、h is the longest river in Asia?Do you like mountain climbing?Do you know the most popular place to go for it?One of the most popular places to go for mountain climbing is the Himalayas.在喜马拉雅山脉之中，海拔在在喜马拉雅山脉之中，海拔在7000米以米以上的高峰有上的高峰有50多座，多座，8000米以上的有米以上的有16座，座，著名的有南峰、希夏邦马峰、干城章嘉峰。著名的有南峰、希夏邦马峰、干城章嘉峰。“喜马拉雅

3、喜马拉雅”在藏语中就是在藏语中就是“冰雪之乡冰雪之乡”的意思。这里终年冰雪覆盖，一座座冰峰的意思。这里终年冰雪覆盖，一座座冰峰如倚天的宝剑，一条条冰川像蜿蜒的银蛇。如倚天的宝剑，一条条冰川像蜿蜒的银蛇。其中最为高耸的则是位于中国和尼泊尔边其中最为高耸的则是位于中国和尼泊尔边界上的珠穆朗玛峰，它以高达界上的珠穆朗玛峰，它以高达8844.43米米的高度，是世界最高峰。的高度，是世界最高峰。珠穆朗玛峰珠穆朗玛峰(Qomolangma)，简称珠峰，简称珠峰，又译作圣母峰，尼泊尔称为萨加马塔峰，又译作圣母峰，尼泊尔称为萨加马塔峰，也叫也叫“埃非勒斯峰埃非勒斯峰”（Everest），位于），位于中华人民共

4、和国和尼泊尔交界的喜马拉雅中华人民共和国和尼泊尔交界的喜马拉雅山脉之上，终年积雪。高度山脉之上，终年积雪。高度8844.43米，米，为世界第一高峰，中国最美的、令人震撼为世界第一高峰，中国最美的、令人震撼的十大名山之一。的十大名山之一。珠峰所在的喜马拉雅山地区原是一片海珠峰所在的喜马拉雅山地区原是一片海洋，在漫长的地质年代，从陆地上冲刷洋，在漫长的地质年代，从陆地上冲刷来大量的碎石和泥沙，堆积在喜马拉雅来大量的碎石和泥沙，堆积在喜马拉雅山地区，形成了这里厚达山地区，形成了这里厚达3万米以上的海万米以上的海相沉积岩层。以后，由于强烈的造山运相沉积岩层。以后，由于强烈的造山运动，使喜马拉雅山地区受

5、挤压而猛烈抬动，使喜马拉雅山地区受挤压而猛烈抬升，据测算，平均每一万年大约升高升，据测算，平均每一万年大约升高2030米，直至如今，喜马拉雅山区仍米，直至如今，喜马拉雅山区仍处在不断上升之中。处在不断上升之中。珠穆朗玛峰，峰高势伟，地理环境独特，珠穆朗玛峰，峰高势伟，地理环境独特，峰顶的最低气温常年在零下峰顶的最低气温常年在零下34。山上一。山上一些地方常年积雪不化，冰川、冰坡、冰塔些地方常年积雪不化，冰川、冰坡、冰塔林到处可见。峰顶空气稀薄，空气的含氧林到处可见。峰顶空气稀薄，空气的含氧量只有东部平原地区的四分之一，经常刮量只有东部平原地区的四分之一，经常刮七八级大风。十二级大风也不少见。风

6、吹七八级大风。十二级大风也不少见。风吹积雪，四溅飞舞，弥漫天际。积雪，四溅飞舞，弥漫天际。1953年年5月月29日，日，34岁来自新西兰的登山岁来自新西兰的登山家埃德蒙家埃德蒙希拉里（希拉里（Edmund Hillary）作）作为英国登山队队员与为英国登山队队员与39岁的尼泊尔向导岁的尼泊尔向导丹增丹增诺尔盖诺尔盖Tenzing Norgay 一起沿东南一起沿东南山脊路线登上珠穆朗玛峰，是纪录上第山脊路线登上珠穆朗玛峰，是纪录上第一个登顶成功的登山队伍。一个登顶成功的登山队伍。1960年年5月月25日，中华人民共和国人首次日，中华人民共和国人首次登上珠穆朗玛峰。他们是王富洲、贡布登上珠穆朗玛峰

7、。他们是王富洲、贡布（藏族）、屈银华。此次攀登，也是首次（藏族）、屈银华。此次攀登，也是首次从北坡攀登成功。从北坡攀登成功。1960年，我国首次年，我国首次登上地球之颠的登上地球之颠的3名英雄。名英雄。1975年年5月月16日，日本人田部井淳子的日，日本人田部井淳子的从南坡登上了珠峰。从南坡登上了珠峰。1975年年5月月27日，中国登山队的藏族女队日，中国登山队的藏族女队员潘多成为世界上第一个从北坡登上珠穆员潘多成为世界上第一个从北坡登上珠穆朗玛峰的女性。朗玛峰的女性。2008年年5月月8日，中日，中国登山队圣火传递国登山队圣火传递珠穆朗玛峰突击队珠穆朗玛峰突击队员，成功地把圣火员，成功地把圣

8、火从从8300米突击队营米突击队营地传递到了珠穆朗地传递到了珠穆朗玛峰峰顶，创造了玛峰峰顶，创造了人类奥运历史上的人类奥运历史上的奇迹。奇迹。2010年年5月月22日，日，13岁的美国男孩乔丹岁的美国男孩乔丹罗罗梅罗梅罗(Jordan Romero)成为有史以来最年成为有史以来最年轻的登上珠峰的人。轻的登上珠峰的人。2013年年5月月23日，日本日，日本80岁探险家三浦雄岁探险家三浦雄一郎成功攀上珠穆朗玛峰峰顶，成为世界一郎成功攀上珠穆朗玛峰峰顶，成为世界上登顶珠峰年龄最大的人。上登顶珠峰年龄最大的人。What might be the dangers of mountain climbing

9、?freezing weather conditions too many people have to fight with dangerous animals hard to take in air thick clouds hard to find the way homeRead the article and match each paragraph with the main ideas.Paragraph 1Paragraph 2Paragraph 3Spirit of climbersAchievements of climbersFacts and dangersMark T

10、rue(T)or False(F).1.It is very dangerous to climb Qomolangma.2.The first people to reach the top were Tenzing Norgay and Edmund Hillary on May 29,1955.3.The first Chinese woman to succeed in 1960.4.It shows that humans can sometimes be stronger than the forces of nature.T F F T Ask and answer.1.What

11、 a mountain is Himalayas?2.Why is it dangerous to climb Qomolangma?3.When did the first Chinese reach the top of Qomolangma?1.What a mountain is Himalayas?2.Why is it dangerous to climb Qomolangma?3.When did the first Chinese reach the top of Qomolangma?Its one of the most popular places for mountai

12、n climbing.Because thick clouds cover the top and snow can fall very hard.In 1960.Read the article again and complete the chart.Paragraph 1Paragraph 2Paragraph 13List four dangers for climbersList three achievementsList four comparisonsthick clouds1953-Tenzing Norgay and Edmund Hillary were the firs

13、t to reach the top most dangerous sportvery highit can snow hardfreezing weather conditionsheavy stormsvery hard to breathe as you get near the top1960-The first Chinese team reached the top1975-Junko Tabei from Japan was the first woman to reach the topmost popular place highestmost famousmore seri

14、ous difficultiesstronger than the forces of natureRead the article and underline the words that show comparisons.the most dangerous,the most popular places,the highest and the most famous,more serious,strongerAnswer the questions using information from the article.1.Where are the Himalayas?2.How hig

15、h is Qomolangma?The Himalayas run along the southwestern part of China.Qomolangma is 8,844.43 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?Because they want to challenge themselves in the face of difficultie

16、s.The spirit of the climbers tells us that we should never give up trying to achieve our dreams.Read the words and expressions loudly.the Himalayasthe Amazon Riverachievement n.southwestern adj.thick adj.include v.freezing adj.condition n.take in 喜马拉雅山脉喜马拉雅山脉亚马逊河亚马逊河成就；成绩成就；成绩西南的；西南方向的西南的；西南方向的厚的；浓的

17、厚的；浓的包括；包含包括；包含冻冰的；结冰的冻冰的；结冰的条件；状况条件；状况吸入；吞入（体内）吸入；吞入（体内）succeed v.challenge v.n.in the face of achieve v.force n.nature n.even though ocean n.the Pacific Ocean实现目标；成功实现目标；成功挑战；考验挑战；考验面对（问题、困难等）面对（问题、困难等）达到；完成；成功达到；完成；成功力；力量力；力量自然界；大自然自然界；大自然=even if 即使；虽然即使；虽然大海；海洋大海；海洋太平洋太平洋1.One of the worlds mos

18、t dangerous sports is mountain climbing,“one of+the+形容词的最高级形容词的最高级+复数名词复数名词”，意为意为“最最之一之一”。如：。如：Miss Wang is one of the most popular teachers in our school.王老师是我们学校最受欢迎的老师之一。王老师是我们学校最受欢迎的老师之一。最可爱的孩子之一最可爱的孩子之一 _最美丽的国家之一最美丽的国家之一 _Shanghai is _(中国最大的城市之一中国最大的城市之一).one of the most lovely children one of

19、the biggest cities in Chinaone of the most beautiful countries1).Sydney is one of _ cities in the world.A.beautiful B.more beautiful C.most beautiful D.the most beautiful 2).China is one of _ in the world.A.the oldest country B.the oldest countries C.much older country D.much older countriesDB3).We

20、have a lovely room.Its one of _ in the hotel.A.nice B.nicer C.nicest D.the nicest 4).China is one of _ countries in the world.A.larger B.largest C.the largest DC 2.It is meters high(long,wide).它它米高（长米高（长,宽宽)。英语表示英语表示“有多长（宽，高有多长（宽，高）”时，时，一般将数词和数量单位放在表示长、宽、一般将数词和数量单位放在表示长、宽、高的形容词前。高的形容词前。The maintain

21、is more than three thousand meters high.这座山高三千多米。这座山高三千多米。It is only 380,000 kilometers away.它离我们只有三十八万公里。它离我们只有三十八万公里。The Green Great Wall is 7,000 kilometers long.这座绿色长城长这座绿色长城长7,000公里。公里。3.Thick clouds cover the top thick adj.1).浓的浓的,浓厚的浓厚的;粘稠的粘稠的;混浊的混浊的 It is dangerous to drive in a thick fog.在浓

22、雾天驾车很危险。在浓雾天驾车很危险。2).厚的厚的;粗的粗的 How thick is the board?这块木板有多厚这块木板有多厚?The ice in the lake is about one meter _.Its strong enough to skate on.A.long B.high C.thick D.wideI need a t_(厚的厚的)jacket,and some warm gloves and socks.thickC4.Even more serious difficulties include freezing weather conditions an

23、d heavy storms.difficulty n.困难，难题，难事困难，难题，难事 Our difficulties are many.Bo begin with,we cant get the workers.我们有许多困难我们有许多困难,首要的是我们招不来工人。首要的是我们招不来工人。Hes having financial difficulties.他正手头拮据。他正手头拮据。difficulty表示具体的难处、难事、麻烦时表示具体的难处、难事、麻烦时,是是可数名词可数名词。引申还可作。引申还可作“困境困境(尤指经济上的尤指经济上的拮据拮据)”解解,这时常用复数形式。这时常用复数形

24、式。difficulty n.困难，艰难，幸苦困难，艰难，幸苦 When you are in difficulty,you may ask for her help.你有困难时你有困难时,可以找她帮忙。可以找她帮忙。I found the place with difficulty.我费了好大劲才找到那个地方。我费了好大劲才找到那个地方。当当difficulty表示抽象的困难时表示抽象的困难时,是不可数是不可数名词名词,既不能与不定冠词连用既不能与不定冠词连用,也不能用于也不能用于复数形式复数形式 have difficulty(in)doing sth.做某事有做某事有/存在困难存在困难

25、I have difficulty learning English.我学英语很吃力。我学英语很吃力。She had no difficulty making herself understood.她毫不费力地表达了自己的意思。她毫不费力地表达了自己的意思。【2011兰州兰州】One of the difficulties we have _ English is how to remember new words and expressions.A.to learn B.in learning C.learn D.learned【解析解析】固定用法。固定用法。have difficulty(

26、in)doing sth.做某事有困难，句意做某事有困难，句意“我们学习我们学习英语的一个困难是怎样记住新的单词和表英语的一个困难是怎样记住新的单词和表达达”。-I have great _ in finishing the work by myself.Could you help me?-No problem.A.fun B.success C.advice D.difficulty 用括号内所给单词的正确形式填空用括号内所给单词的正确形式填空【2011遵义遵义】Trust him!He has no difficulty _(work)out the problem.workingDha

27、ve fun(in)doing sth.很高兴做某事很高兴做某事have luck(in)doing sth.做某事时有运气做某事时有运气(走运走运)have trouble/problem(in)doing 做事有麻烦做事有麻烦have a hard time(in)doing sth.做某事很辛苦做某事很辛苦知识链接知识链接My deskmate has some trouble _ spelling some of the words in American English.(2010上海上海)I have great difficulty _ the suitable food on

28、the menu in that restaurant.A.find B.found C.to find D.finding in freezing adj.冻结的；冰冻的；极冷的冻结的；冰冻的；极冷的 Its freezing outside now.现在外面冷极了。现在外面冷极了。Its very cold today,and the temperature has dropped to freezing point.今天很冷，温度降到了冰点。今天很冷，温度降到了冰点。freeze v.冻结；冷冻；僵硬；凝固冻结；冷冻；僵硬；凝固 Water freezes at the temperat

29、ure of 0 degree Celsius.水在零摄氏度结冰。水在零摄氏度结冰。We ate some of the fruits and froze the rest.我们吃了一些水果，把剩下的冷藏起来。我们吃了一些水果，把剩下的冷藏起来。知识拓展知识拓展frozen既是既是freeze的过去分词形式，也可用的过去分词形式，也可用作形容词，表示作形容词，表示“冷冻的冷冻的”。These frozen foods are the most convenient of all.这些冷冻食品是最方便的。这些冷冻食品是最方便的。应用应用英译汉英译汉 above/over freezing 零度以

30、上零度以上 freezing weather 很冷的天气很冷的天气 be frozen to death 被冻死被冻死 give sb.a freezing cold 冷冷地看某人一眼冷冷地看某人一眼 freezing machine 制冷机制冷机 frozen meat 冻肉冻肉 Im frozen,so I cant write.我冻坏了，不能写东西了。我冻坏了，不能写东西了。Im freezing,so Ive to put on a heavy coat.我觉得冷极了，我得穿件厚大衣。我觉得冷极了，我得穿件厚大衣。5.It is also very hard to take in ai

31、r as you get near the top.It is+adj.(for sb.sth.)+to do sth.句型句型中，中，it作形式主语放在句首，而把真正的主作形式主语放在句首，而把真正的主语动词不定式放在句尾。常用于此句型的形语动词不定式放在句尾。常用于此句型的形容词有：容词有：important,difficult,dangerous,necessary,useful,possible等，用来对等，用来对to do sth.进行说明。进行说明。此句型可以转换成此句型可以转换成To do sth.is+adj.。It is important to study English

32、well.学好英语很重要。学好英语很重要。It was very hard for them to walk such a long way in the snow 对于他们来说，在雪地里行走这么远是很对于他们来说，在雪地里行走这么远是很困难的。困难的。It is necessary to change your job 你换工作是有必要的。你换工作是有必要的。1).多吃蔬菜水果对健康有好处。多吃蔬菜水果对健康有好处。_ your health to eat more vegetables and fruit.【答案答案】Its good for/It will do good to 2).人

33、们很难得禽流感。人们很难得禽流感。_ to get bird flu.【答案】【答案】Its very hard for people3)._ is important for us to keep the balance of nature.A.This B.That C.There D.It D_ is important to help others.A.It B.That C.This D.WeIs _ possible to fly to the moon in a spaceship?A.now B.man C.that D.it对我们来说学好英语是非常重要的。对我们来说学好英语是

34、非常重要的。(It is for sb.to do)_It is very important for us to learn English well.take in 吸入；吞入（体内）吸入；吞入（体内）On weekends the Smiths usually drive to the countryside and take in the fresh air there.周末，史密斯一家常驱车到农村去吸收那周末，史密斯一家常驱车到农村去吸收那里的新鲜空气。里的新鲜空气。take in 理解理解 She read a few poems,but did not take them in.

35、她读了几首诗，但没有理解。她读了几首诗，但没有理解。6.The spirit of these climbers shows us that we should never give up trying to achieve our dreams.give up 放弃；抛弃；戒除放弃；抛弃；戒除 It is a pity to give up the job.要放弃这份工作，真是遗憾。要放弃这份工作，真是遗憾。You ought to give up smoking;I gave it up last year.你应该戒烟，我去年就戒掉了。你应该戒烟，我去年就戒掉了。My uncle want

36、s to give up drinking wine.我叔叔想戒酒。我叔叔想戒酒。Although English isnt easy to learn,I wont give it up.虽然英语不易学，但我不会放弃。虽然英语不易学，但我不会放弃。温馨提示：代词做宾语必须放在温馨提示：代词做宾语必须放在give 和和up两两者之间者之间【2013 江苏泰州江苏泰州】Its too hard for me to be a trailwalker.Never _.Believe in yourself!A.put up B.give up C.hurry up D.look up【答案答案】B(

37、2013 江苏连云港江苏连云港)11.It was a difficult time for the quake-hit victims in Yaan,but they didnt _ hope.A.give up B.give off C.give in D.give out 医生告诉他戒酒。医生告诉他戒酒。The doctor told him to _ drinking.give up give back 归还，送回归还，送回 give in to 屈服于某人屈服于某人/某事某事give out 分发，散发，用光，耗尽分发，散发，用光，耗尽give away 泄密泄密give off

38、发出（光，烟，气）发出（光，烟，气）give over 停止，放弃停止，放弃give way to 让路，让步让路，让步知识链接知识链接1).In those days,he used to give _ a part of his income to help his friend.2).Both sides argued with reason,and neither would give _.3).If they are burned,they give _ poisonous gases.awayinoff4).Both the man and the horse gave _ aft

39、er the long ride.5).All hope of finding the missing aircraft was given _ and the search stopped.6).Mary had to give _ her job after her marriage.outupup achieve v.达到；完成；成功达到；完成；成功 Work hard,and you will achieve your goal.好好干好好干,你就会达到自己的目标。你就会达到自己的目标。We have achieved what we set out to do.我们完成了想要做的事情

40、。我们完成了想要做的事情。I havent achieved very much today.我今天没做成多少事。我今天没做成多少事。achievement n.成就成就;成绩成绩;完成完成;达到达到Try to _.Do not depend on your dictionary all the time.A.know B.achieve C.help D.guess 用所给词的适当形式填空用所给词的适当形式填空I strongly believe that my dream _(achieve)some day even though many people laugh at me.D w

41、ill achieve Dreams are beautiful.However,to _ them needs lots of time and work.（2015安徽）安徽）A.discover B.find C.achieve D.stop C5.Why do so many people try to climb this mountain even though it is dangerous?even though 用作从属连词，意为用作从属连词，意为“即使；尽即使；尽管管”，相当于，相当于even if，引导让步状语从句，引导让步状语从句，一般不与并列连词一般不与并列连词but连用。如：连用。如：Mr.Wang will come on time even though it rains.尽管下雨，但王老师会按时来。尽管下雨，但王老师会按时来。