新目标人教版八年级下册英语unit7全单元ppt课件.ppt

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1、Unit 7Whats the highest mountain in the world?,Section A 1a-2d,Presentation,square n.平方,meter n.米,deep adj.深的,desert n.沙漠,population n.人口,Asia n.亚洲,tour v.n.旅行,tourist n.旅行者,wall n.墙,amazing adj.令人大为惊奇的,ancient adj.古代的,wide adj.宽的；宽阔和,Language Goal:Talk about geography and nature,一、用英语写出下列数字：,ninety

2、-eight thousand seven hundred and fifty-four,Nine hundred and eighty-three,Exercise,five hundred(and)sixty-five,seven hundred and nine,565_ 709_ 983_ 98,754_ _,练一练345100118,657,421,three hundred and forty-five,one thousand(and)one,eighteen million,six hundred and fifty-seven thousand,four hundred an

3、d twenty-one,3,872,Three thousand eight hundred and seventy-two,46,290,Forty-six thousand two hundred and ninety,58,230,Fifty-eight thousand two hundred and thirty,59684,3219,648,215,five hundred and ninety-six,eighty-four thousand three hundred and twenty-one,Nine million,six hundred and forty-eigh

4、t thousand,two hundred and fifteen,Qomolangma about 9,600,000 square 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 wor

5、ld.3.The Caspian Sea is _ of all the salt lakes.4.The Nile is _ river in the world.,1b.Listen and complete the sentences.,higher,the biggest,the deepest,the longest,1c.Use the information in 1b to make conversations.,A:What is the highest mountain in the world?,B:Qomolangma.,A:What is the biggest de

6、sert in the world?,A:What is the deepest salt lake in the world?,Pair work,A:What is the longest river in the world?,B:Sahara.,B:Caspian sea.,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 bigge

7、r than the population of the US.,2a.Listen and number the facts 1-4 in the order you hear them.,6,3005,0005,464300,2,4,_ 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.,1,3,2b.L

8、isten 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 the world.Its a lot bigger than the population of the US.,6,3005,0005,464300,2,4,6,300,5,464,_ China is o

9、ver _ 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.,1,3,5,000,300,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 con

10、versations using the information in 2a.,Group work,18,657,421,eighteen million,six hundred and fifty-seven thousand,four hundred and twenty-one,9,648,215,Nine million,six hundred and forty-eight thousand,two hundred and fifteen,58,230,Fifty-eight thousand two hundred and thirty,1.in size 在大小上2.one o

11、f the oldest countries 最古老的国家之一3.feel free to do sth.随意地做某事4.as far as I know 据我所知5.man-made objects 人造物体6.the highest mountain 最高的山脉,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 fr

12、om the Ming Dynasty,its about 8,850 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 wid

13、e.As far as I know,there are no man-made objects as big as this.Tourist 3:Is Badaling part of the Ming Great Wall?Guide:Yes,its the most famous part.,the Himalayasthe Amazon Riverparagraph n.southwestern adj.thick adj.include v.freezing adj.condition n.take in,喜马拉雅山脉亚马逊河段；段落西南的；西南方向的厚的；浓的包括；包含冻冰的；结冰

14、的条件；状况吸入；吞入（体内）,succeed v.Japan n.challenge v.in the face of achieve v.force n.nature n.ocean n.the Pacific Ocean,实现目标；成功日本挑战；考验面对（问题、困难等）达到；完成；成功力；力量自然界；大自然大海；海洋太平洋,1、run along 跨越 2.freezing weather 冰冻的天气3.take in air 呼吸空气4.the first people to do sth.第一个做某事的人5.in the face of difficulties 面临危险6.give

15、 up doing sth.放弃做某事7.achieve ones dream 实现某人的梦想8.the forces of nature 自然界的力量9.reach the top 到达顶峰10.even though 虽然;尽管,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

16、 one of the most popular places for this is the Himalayas.The Himalayas run along the southwestern part of,China.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

17、.Even more 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 suc

18、ceed was 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 huma

19、ns can sometimes be stronger than the forces of nature.,Paragraph 1 Spirit of climbersParagraph 2 Achievements of climbers Paragraph 3 Facts and dangers,Paragraph 1List four dangers for climbers:,thick cloudsSnow slide;Freezing weather conditions;Heavy storm;,3b.Read the article again and complete t

20、he chart.,Paragraph 2List three achievements:,1953-Tenzing Norgay and Edmund Hillary were the first to reach the top;1960-The first Chinese team did so;1975 the Japanese Junko Tabei succeeded doing so.,Paragraphs 1&3List four comparisons:,most dangerous sport;most popular places;the highest mountain

21、;the most famous mountain,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 meters high.,3.Why do so many people try to climb this mountain even though it is dangerous?4

22、.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 give up trying to achieve our dreams.It also shows that humans can sometimes be stronger than

23、the forces of nature.,1.Feel free to ask me anything on todays Great Wall tour.在今天的长城游中，大家尽管问我任何问题，不要拘束。feel free是英语口语中一个常用表达。若有人让你feel free to do something,就是让你无需拘束，只管按照自己的意愿去做某事。e.g.A:Can I use your bathroom?我可以用一下你的卫生间吗？B:Yes,feel free.可以，请随意。,Language points,2.As far as I know,there are no man-m

24、ade objects as big as this.据我所知，再没有像它这样大的人造物体了。as far as I know 是一个固定的表达方式，还可以说so far as I know，意思是“据我所知”。例如：As far as I know,Jacks got twin sisters.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。,3.the Ming Great Wall 明长城“明长城”是指明朝时期为了防御北方游牧民族的骚扰，历时一百多年在北部地区 修筑的军事防御工程。这段长城东

25、起辽宁虎山，西至甘肃嘉峪关，从东向西横贯多个省、直辖市、自治区，全长约8850千米，是现存历代长城遗迹中最完整、最坚固的。,4.Even more serious 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风暴。1）difficulty既可作可数名词也可作不可数名词，在此用作可数名词。作可数名词时,difficulty通常用作复数，表示具体概念，即：各种各样的“困难；难题；难事”。,例如：People learning a new language may face

26、 some difficulties.人们学习一门新的语言 时可能会遇到一些困难。If you have any difficulties,you can call me for help.如果你遇到任何困难，给我打电话求助好了。,作不可数名词时，difficulty可译作“困难；艰难；辛苦；费劲”，例如：He had great difficulty in finding a new job.他找新的 工作费了很大劲。.We found the house without difficulty.我们轻而易举地找到广那座房子。,2）include表示“包括；包含”，是一个及物动词。例如：Doe

27、s your price of the bike include this light?你们的车价包含这盏车灯吗？,5.The spirit of these climbers shows us that we should never give up trying to achieve our dreams.这些登山者的精神向我们表明：我们绝不应该放弃实现自己梦想的尝试。1）give up doing something 的意思是“放弃做某事；半途而废”He gave up learning a third language after he got the job.他找到工作之后就放弃了对

28、第三门语言的学习。,2)achieve our dreams 相当于make our dreams come true其中动词achieve表示“（通过努力）实现；取得；获取；达到（梦想、成绩、成功、目的)”等。例如：He achieved great success in a short time.他用很短的时间取得了极大的成功。Lin Tao achieved very good exam results.林涛考试取得了 很好的成绩。,一 写出下列单词的比较级和最高级,fortable3.big4.happy5.cheap6.many7.difficult8.little,1.good f

29、ortable 3.big 4.happy 5.cheap 6.many 7.difficult 8.little,better best,more most,bigger biggest,happier happiest,cheaper cheapest,more most,more most,less least,1.Lily gets up _(early)than Lucy.2.Which goes _(slowly),Tom or Jim?3.This book is _(interesting)than that one.,earlier,more slowly,more inte

30、resting,二 根据所给词的适当形式填空,4.She works _(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,latest,the most delicious,Homework,Can you think of more examples to show isthe mostin the world?Compete with yourclassmates.,Unit 7Whats the

31、 highest mountain in the world?,Section A Grammar Focus,Grammar Focus,4a.Fill in the blanks with the correct forms of the words in the box.,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_.,big much popular long old high,lo

32、ngest,longer,high,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 is _ than Canada,it is_smaller.,popular,big,older,much,e.g.Two rivers：_ and _,4b.Write two comparisons about two topics.Write true facts.,the Yangtze Rive

33、r,the Amazon River,The Yangtze River is almost as long as the Amazon River.,The Amazon is longer than the Yangtze,but the Yangtze is the longest river in China.,Two cities：_ and _1._2._ _,Two animals：_ and _1._ 2._ _,Pair work,4c.Write five questions using comparisons.Then ask your partner your ques

34、tions.,_,What is the highest building in our city?,Who is the oldest people in our city?,What is the most popular street in our city?,What is the most delicious food in our city?,Where is the busiest road in our city?,Grammar Focus,(一)数词 Numeral,数词是用来表示事物的数目和顺序的词。,数词的分类：1.基数词2.序数词3.分数词今天我们先来学习一下基数词。

35、,1.复习1100以内的所有数字。2.掌握百、千、万、十万、百万的表达法。,1、1-19的基数词,one 1 two 2 three 3 four 4 five 5,six 6 seven 7 eight 8 nine 9 ten 10,eleven 11 twelve 12 thirteen 13 fourteen 14,fifteen 15 sixteen 16 seventeen 17 eighteen 18 nineteen 19,2、2090等十位数,twenty 20thirty 30forty 40fifty 50sixty 60seventy 70eighty 80ninety

36、 90,twenty-one 21 twenty-two 22 其它的十位数照此类推，如：thirty-one 31 forty-two 42 seventy-five 75 ninety-six 96,3、百、千、万,百 hundred 100 one hundred 200 two hundred 以此类推 千 thousand 1 000 one thousand 2 000 two thousand英语里没有“万”这一单位，万也用thousand表示。如：10 000 ten thousand 一万20 000 twenty thousand 两万,4、十万、百万,十万的说法是：100

37、.000 a(one)hundred thousand 200.000 two hundred thousand million 百万 a(one)million 1,000,000 two million 2,000,000 以此类推 8,000,000 eight million,练一练345100118,657,421,three hundred and forty-five,one thousand(and)one,eighteen million,six hundred and fifty-seven thousand,four hundred and twenty-one,The

38、project lasted 5 years and cost 2 billion dollars.2.The Chinese have been making paper for two thousand years.3.One thousand pounds is a lot of money.,表示确定数量时 用基数词+hundred，thousand，million，billion,多位基数词读法,457,890,608,389,three hundred and eighty-nine,four hundred and fifty-seven,eight hundred and ni

39、nety,six hundred and eight,1）101999的三位数由“百位数and+两位数组成”。如：325three hundred and twenty-five,102 one hundred and two,635 six hundred and thirty-five,2)三位数以上的数，从个位往前数，每三位数加一个逗号，从后往前数的第一个逗号代表thousand,第二个逗号代表million,第三个逗号是billion，注意这几个词不能用复数形式，后也不能加and。例如：2,648 two thousand,six hundred and forty-eight 16,

40、250,064 sixteen million,two hundred and fifty thousand,sixty-four,确切数目与不确切数目的表达：hundred,thousand,million,billion等前面有基数词，表示确切数目时，用单数，后直接接复数名词；如：three hundred books one hundred people five thousand students seven million starts,表示不确切数目时，这类词后加-s且与of连 用。如：hundreds of people thousands of students million

41、s of birds billions of lions注意：这类短语中，名词前如有定冠词、指 示代词或形容词性物主代词时，可加of,但 表示的是范围。如：two hundred of the workers工人中的二百（人）,Grammar Focus,(二)形容词的比较级和最高级 comparatives and superlatives with adj.and adv.,short,-,shorter,small,-,smaller,nice,nicer,safe,safer,-,-,-,-,-,-,big,thin,heavy,heavier,happy,happier,找规律：,b

42、ig,bigger,thin,thinner,delicious more delicious interesting more interesting important more important carefully-more carefully quickly-more quickly slowly-more slowlyeasily-more easily,找规律：,大多数形容词和副词有三个等级：原级、比较级、最高级。一、形容词比较级的构成 1.构成的不规则变化:2.构成的规则变化:,形容词和副词的比较级,1.构成的不规则变化:e.g.good/well better best ba

43、d/badly worse worst many/much more most little less least far farther/further farthest/furthest,2.构成的规则变化:1)单音节词和少数双音节词一般在词尾 后加-er 构成比较级 或-est构成最高级.如：原级 比较级 最高级 cold colder coldest bright brighterbrightest young younger youngest,2)以字母 e 结尾的词只加 r 或-st 构成 比较级和最高级。原级 比较级 最高级 nice nicer nicest fine fine

44、r finest large larger largest,3)重读闭音节词末尾只有一个辅音字母时,先双写这个辅音字母,再加-er或-est。如:big bigger biggest thin thinner thinnest 4)以“辅音字母+y”结尾的双音节词，先改y为i,再加-er或-est。如：easy easier easiest happy happier happiest,5)多音节词和部分双音节词在词前加more 或most。如：delicious more delicious most delicious interesting more interesting most i

45、nteresting importantmore important most important,carefully-more carefully-most carefullyquickly-more quickly-most quicklyslowly-more slowly-most slowlyeasily-more easily-most easily,形容词最高级的构成,tall,taller,tallest,B:heavy easy tidy dry busy happy healthy hungry early,y-i-est,C:large late nice,-st,big

46、gest,D:big,hot,hottest,thin“双写”,thinnest,wet,wettest,fat,fattest,Adjective,delicious dangerous interesting popular beautiful careful friendly,the most-adj.,Adjective,better best,far,little,worse worst,more most,farther farthest,less least,good,well,bad,badly,many,much,1.good fortable 3.big 4.happy 5

47、.cheap 6.many 7.difficult 8.little,better best more comfortable most comfortable bigger biggest happier happiest cheaper cheapest more most more difficult most difficult less least,用法：英语中三者或三者以上相比较，表示“最”这样的最高程度概念时，要用“the+最高级”的结构表示。这种句式一般带有表示比较的介词短语，比如:in our class,of the three 等。例如：Wang Lin is the t

48、allest in our class.This theater is the cheapest of the three.注意使用最高级时应注意以下几点：,形容词的最高级,(1)表示“最之一”的句式，要用 one of the+形容词最高级+复数名词。例如:Jingjiang Hotel is one of the biggest hotels in our city.Lisa is not one of my best friends.(2)当最高级前面有物主代词或名词所有格时，不加定冠词 the。例如：Tom is Lucys best friend.Tuesday is her bus

49、iest day.,(3)最高级前可加序数词。例如：The Yellow River is the second longest river in China.(4)形容最高级修饰作表语或介词宾语的名词，代词时，被修饰的词往往省略。例如：He is the laziest(student)in our class.,2.形容词比较级和最高级的构成 规则变化一般情况下，单音节或双音节的形容词比较级直接加-er,最高级直接加-est。如：clevercleverercleverest cheapcheapercheapest fewfewerfewest smallsmallersmallest

50、youngyoungeryoungest,b.以-e 结尾的形容词，比较级+-r,最高级+-st。如：largelargerlargest nicenicernicest cutecutercutestc.以辅音字母+y结尾的形容词，变y为i+er或+est。busybusierbusiest heavyheavierheaviest easyeasiereasiest happyhappierhappiest dirtydirtierdirtiest,d.以重读闭音节结尾，末尾只有一个辅音字母结 尾的词，双写最后一个辅音字母，再加+er或+est。如：bigbiggerbiggest thi