《八年級英語下冊 Unit 7 What’s the highest mountain in the world課件2》由會員分享，可在線閱讀，更多相關《八年級英語下冊 Unit 7 What’s the highest mountain in the world課件2（58頁珍藏版）》請在裝配圖網(wǎng)上搜索。

1、Grammar FocusWhats the highest mountain in the world?Qomolangma.How high is Qomolangma?Its 8,844.43 meters 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 i

2、n the world?Yes,I did.Its much older than the US.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 highlongestlongerhigh Its one

3、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.popularbigoldermuche.g.Two rivers：_ and _4b.Write two comparisons about two topics.Write true facts.the Yangtze Riverthe Amazon RiverThe Yangtze Riv

4、er 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._ _4c.Write five questions using comparisons.Then ask your partner your questions.1._2._3._4._5._What is the highest buildin

5、g 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(一一)數(shù)詞數(shù)詞 Numeral數(shù)詞是用來表示事物的數(shù)目和順序的數(shù)詞是用來表示事物的數(shù)目和順序的詞。詞。數(shù)詞的分類：數(shù)詞的分類：1.基數(shù)詞基數(shù)詞2.序數(shù)詞序數(shù)詞3.分數(shù)詞分數(shù)詞今天我們先來學習一下基數(shù)詞。今天我們先來學習

6、一下基數(shù)詞。1.1.復習復習11001100以內(nèi)的所有數(shù)字。以內(nèi)的所有數(shù)字。2.2.掌握百、千、萬、十萬、百萬的掌握百、千、萬、十萬、百萬的表達法。表達法。1、1-19的基數(shù)詞 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 192、2090等十位數(shù)twenty 20thirty 30forty 40fif

7、ty 50sixty 60seventy 70eighty 80ninety 90 twenty-one 21 twenty-two 22 其它的十位數(shù)照此類推，如其它的十位數(shù)照此類推，如：thirty-one 31 forty-two 42 seventy-five 75 ninety-six 963、百、千、萬 百百 hundred 100 one hundred 200 two hundred 以此類推以此類推 千千 thousand 1 000 one thousand 2 000 two thousand英語里沒有英語里沒有“萬萬”這一單位，這一單位，萬也用萬也用thousand表示

8、。如：表示。如：10 000 ten thousand 一萬一萬20 000 twenty thousand 兩萬兩萬 4、十萬、百萬十萬的說法是：十萬的說法是：100.000 a(one)hundred thousand 200.000 two hundred thousand million 百萬百萬 a(one)million 1,000,000 two million 2,000,000 以此類推以此類推 8,000,000 eight million練一練練一練345100118,657,421three hundred and forty-fiveone thousand(and)

9、oneeighteen million,six hundred and fifty-seven thousand,four hundred and twenty-one1.The 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.表示確定數(shù)量時表示確定數(shù)量時 用基數(shù)詞用基數(shù)詞+hundred，thousand，million，billion多位基數(shù)

10、詞讀法多位基數(shù)詞讀法457890608389three hundred and eighty-ninefour hundred and fifty-seveneight hundred and ninetysix hundred and eight 102 one hundred and two635 six hundred and thirty-five2)三位數(shù)以上的數(shù)，從個位往前數(shù)，每三位數(shù)三位數(shù)以上的數(shù)，從個位往前數(shù)，每三位數(shù)加一個逗號，從后往前數(shù)的第一個逗號代表加一個逗號，從后往前數(shù)的第一個逗號代表thousand,第二個逗號代表第二個逗號代表million,第三個逗第三個逗號是號是

11、billion，注意，注意這幾個詞不能用復數(shù)形式，這幾個詞不能用復數(shù)形式，后也不能加后也不能加and。例如：。例如：2,648 two thousand,six hundred and forty-eight 16,250,064 sixteen million,two hundred and fifty thousand,sixty-four 確切數(shù)目與不確切數(shù)目的表達確切數(shù)目與不確切數(shù)目的表達：hundred,thousand,million,billion等前面有等前面有基數(shù)詞，基數(shù)詞，表示確切數(shù)目時，用單數(shù)，后直接表示確切數(shù)目時，用單數(shù)，后直接接復數(shù)名詞；接復數(shù)名詞；如：如：three

12、 hundred books one hundred people five thousand students seven million starts表示不確切數(shù)目時，這類詞后加表示不確切數(shù)目時，這類詞后加-s且與且與of連連 用。用。如：如：hundreds of people thousands of students millions of birds billions of lions注意：這類短語中，名詞前如有定冠詞、指注意：這類短語中，名詞前如有定冠詞、指 示代詞或形容詞性物主代詞時，可加示代詞或形容詞性物主代詞時，可加of,但但 表示的是范圍。如：表示的是范圍。如：two h

13、undred of the workers工人中的二百（人）工人中的二百（人）Grammar Focus(二二)形容詞的比較級和最高級形容詞的比較級和最高級 comparatives and superlatives with adj.and adv.short-shortersmall-smallernicenicersafesafer-bigthinheavyheavierhappyhappierbigbiggerthinthinnerdelicious more delicious interesting more interesting important more important

14、 carefully-more carefully quickly-more quickly slowly-more slowlyeasily-more easily大多數(shù)形容詞和副詞有三個等級：大多數(shù)形容詞和副詞有三個等級：原級、比較級、最高級原級、比較級、最高級。一、一、形容詞比較級的構成形容詞比較級的構成 1.1.構成的不規(guī)則變化構成的不規(guī)則變化:2.2.構成的規(guī)則變化構成的規(guī)則變化:1.構成的不規(guī)則變化構成的不規(guī)則變化:e.g.good/well better best bad/badly worse worst many/much more most little less leas

15、t far farther/further farthest/furthest2.構成的規(guī)則變化構成的規(guī)則變化:1)單音節(jié)詞和少數(shù)雙音節(jié)詞一般在詞尾單音節(jié)詞和少數(shù)雙音節(jié)詞一般在詞尾 后加后加-er 構成比較級構成比較級 或或-est構成最高級構成最高級.如：如：原級原級 比較級比較級 最高級最高級 cold colder coldest bright brighterbrightest young younger youngest2)以字母以字母 e 結尾的詞只加結尾的詞只加 r 或或-st 構成構成 比較級比較級和和最高級最高級。原級原級 比較級比較級 最高級最高級 nice nicer n

16、icest fine finer finest large larger largest3)重讀閉音節(jié)詞末尾只有一個輔音字母重讀閉音節(jié)詞末尾只有一個輔音字母時時,先雙寫這個輔音字母先雙寫這個輔音字母,再加再加-er或或-est。如如:big bigger biggest thin thinner thinnest 4)以以“輔音字母輔音字母+y”結尾的雙音節(jié)詞，結尾的雙音節(jié)詞，先改先改y為為i,再加再加-er或或-est。如：。如：easy easier easiest happy happier happiest5)多音節(jié)詞和部分雙音節(jié)詞在詞前加多音節(jié)詞和部分雙音節(jié)詞在詞前加more 或或m

17、ost。如：。如：delicious more delicious most delicious interesting more interesting most interesting importantmore important most importantcarefully-more carefully-most carefullyquickly-more quickly-most quicklyslowly-more slowly-most slowlyeasily-more easily-most easily形容詞形容詞最高級最高級的構成的構成A:tall short quic

18、k thick light cool warm quiet wild calm the-esttalltallertallestB:heavy easy tidy dry busy happy healthy hungry earlyy-i-estC:large late nice-st biggestD:bighothottestthin “雙寫雙寫”thinnestwet wettest fatfattestAdjective delicious dangerous interesting popular beautiful careful friendly the most-adj.Ad

19、jective better best farlittle worse worstmore mostfarther farthestless leastgoodwellbadbadlymany much 1.good fortable 3.big 4.happy 5.cheap 6.many 7.difficult 8.little better best more comfortable most comfortable bigger biggest happier happiest cheaper cheapest more most more difficult most difficu

20、lt less least1.用法：英語中三者或三者以上相比較，表示用法：英語中三者或三者以上相比較，表示“最最”這樣的最高程度概念時，要用這樣的最高程度概念時，要用“the+最高級最高級”的結構表示。這種句式一般的結構表示。這種句式一般帶有表示比較的介詞短語，比如帶有表示比較的介詞短語，比如:in our class,of the three 等。等。例如：例如：Wang Lin is the tallest in our class.This theater is the cheapest of the three.注意使用最高級時應注意以下幾點：注意使用最高級時應注意以下幾點：形容詞的最

21、高級形容詞的最高級 (1)表示表示“最最之一之一”的句式，要用的句式，要用 one of the +形容詞最高級形容詞最高級+復數(shù)名詞。復數(shù)名詞。例如例如:Jingjiang Hotel is one of the biggest hotels in our city.Lisa is not one of my best friends.(2)當最高級前面有物主代詞或名詞所有格時，當最高級前面有物主代詞或名詞所有格時，不加定冠詞不加定冠詞 the。例如：例如：Tom is Lucys best friend.Tuesday is her busiest day.(3)最高級前可加序數(shù)詞。最高級

22、前可加序數(shù)詞。例如：例如：The Yellow River is the second longest river in China.(4)形容最高級修飾作表語或介詞賓語的名詞，形容最高級修飾作表語或介詞賓語的名詞，代詞時，被修飾的詞往往省略。代詞時，被修飾的詞往往省略。例如：例如：He is the laziest(student)in our class.2.形容詞比較級和最高級的構成形容詞比較級和最高級的構成(1)規(guī)則變化規(guī)則變化a.一般情況下，單音節(jié)或雙音節(jié)的形容詞比較級一般情況下，單音節(jié)或雙音節(jié)的形容詞比較級直接加直接加-er,最高級直接加最高級直接加-est。如：。如：clever

23、cleverercleverest cheapcheapercheapest fewfewerfewest smallsmallersmallest youngyoungeryoungest b.以以-e 結尾的形容詞，比較級結尾的形容詞，比較級+-r,最高級最高級+-st。如：。如：largelargerlargest nicenicernicest cutecutercutestc.以輔音字母以輔音字母+y結尾的形容詞，變結尾的形容詞，變y為為i+er或或+est。busybusierbusiest heavyheavierheaviest easyeasiereasiest happyh

24、appierhappiest dirtydirtierdirtiestd.以重讀閉音節(jié)結尾，末尾只有一個輔音字母結以重讀閉音節(jié)結尾，末尾只有一個輔音字母結 尾的詞，雙寫最后一個輔音字母，再加尾的詞，雙寫最后一個輔音字母，再加+er或或 +est。如：如：bigbiggerbiggest thinthinnerthinnest fatfatterfattest hothotterhotteste.多音節(jié)和部分雙音節(jié)形容詞，需在原級前多音節(jié)和部分雙音節(jié)形容詞，需在原級前+more 構成比較級，構成比較級，+most 構成最高級。如：構成最高級。如：importantmore importantmo

25、st important beautifulmore beautiful most beautiful difficultmore difficultmost difficult 3.不規(guī)則變化：不規(guī)則變化：原級原級比較級比較級最高級最高級 good/well better best bad/ill worse worst little less least many/much more most far farther/further farthest/furthest old older/elder oldest/eldest最高級規(guī)則變化口訣最高級規(guī)則變化口訣：最高級，很容易，一般詞尾加

26、最高級，很容易，一般詞尾加est。(cheap-the cheapest)詞尾若有啞音詞尾若有啞音e,直接就加直接就加st。(close-the closest)重讀閉音節(jié)重讀閉音節(jié),單輔音字母要雙寫。單輔音字母要雙寫。(big-the biggest)輔音字母加輔音字母加y,記得把記得把y變?yōu)樽優(yōu)閕。(friendly-the friendliest)多音節(jié)，考考你，多音節(jié)，考考你，the most到底加哪里？到底加哪里？(popular-the most popular)1.We are going to the Green Restaurant for lunch.(就劃線部分提問就劃線

27、部分提問)_ you going for lunch?2.Sam is the shortest in his class.(改為同義句改為同義句)Sam is _ than _ _ student in his class.Sam is _ than _ _ students in his class.Sam is _ than_ _ in his class.3.How do you like Screen City?(改為同義句改為同義句)_ do you _ Screen City?Where areshorterany otherWhatthink ofshorterthe othe

28、ranyone elseshorter練習：改寫句子練習：改寫句子總 結 late later-latestearly earlier earliestbigbigger-biggestfluently/difficultmore,most單音節(jié)詞在詞尾比較級單音節(jié)詞在詞尾比較級加加-er或最高級加或最高級加-est以以e結尾的詞，只需加結尾的詞，只需加r 或或st少數(shù)以少數(shù)以er,ow 結尾的雙音結尾的雙音節(jié)詞加節(jié)詞加-er-esttalltaller-tallest clevercleverer-cleverestcheap,cold,small,warm,young,highfine,n

29、ice,safehappy,busy,dirty,easy,lazy,prettyfat,hot,red,thin,wet,sad narrow,yellow quickly,slowly,useful,careful,popular,modern,不規(guī)則變化不規(guī)則變化 good/well better-best much/many more-most bad/badly/ill worse worst little less least far farther/further farthest furthest old older/elder oldest/eldest形容詞和副詞比較級的用

30、法形容詞和副詞比較級的用法 1.Who runs faster,he or she?2.He runs faster than she.3.He runs much faster than she.4.He becomes healthier and healthier.5.The more you exercise,the healthier you will be.6.She is less healthy than he.1.表示兩者之間的選擇表示兩者之間的選擇,可用可用“Which/Who +比較，比較，or?”.3.much/far/a lot,even,still,a little

31、/a bit 修飾比較級修飾比較級,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.“比較級比較級+and+比較級比較級”表示表示“越來越越來越”5.“the+比較級比較級,the+比較級比較級”表示表示“越越,越越”6.表示不及另一方時，用表示不及另一方時，用“l(fā)ess+原級原級+than”(雙音節(jié)和多音節(jié)詞雙音節(jié)和多音節(jié)詞)He becomes healthier and healthier.The more you exercise,the healthie

32、r you will be.She is less healthy than he.He is healthier than she.Shanghai is becoming more and more modern.1.比較級比較級+and+比較級比較級 越來越越來越2.the+比較級比較級,the+比較級比較級 越越,越越 3._you are,_mistakes you will make.(你越仔細，做錯的題目就越少）4._you eat,_youll be.(你吃得越多,就越胖)5.Alice writes well.Mary writes _ than she.(甚至更好）The

33、more carefulthe fewerThe morethe fatter1.The girl becomes _.(越來越漂亮）more and more beautiful2.The weather is getting _.(越來越槽糕）worse and worseeven/still better1.表示三者或三者以上比較表示三者或三者以上比較,可用可用”Which/Who +最高級最高級,or?”表示表示.2.最高級最高級+of/among(同類比較同類比較)in(范圍比較范圍比較)4.one of+形容詞最高級形容詞最高級+名詞復數(shù)表示名詞復數(shù)表示“最最 之一之一”3.序數(shù)詞

34、修飾最高級序數(shù)詞修飾最高級形容詞和副詞的最高級的用法形容詞和副詞的最高級的用法Who is the tallest,Tom,Mike,or Jack?Tom is the tallest of the three.Mike is the second tallest student in our class.Jack is one of the tallest students in our class.Tom runs(the)fastest in our class.3.Lin Tao is _ in the class because he never gets to school on

35、 time.（最懶的學生之一）（最懶的學生之一）4.Edison was_ in the world.(最偉大的發(fā)明家之一）最偉大的發(fā)明家之一）one of the laziest studentsone of the greatest inventors1.The Yangtze River is_ river in the world.(第三長河）第三長河）the third longest2.The Atlantic is _ ocean in the world.(第二大洋）第二大洋）the second biggestExercise:一、翻譯句子：一、翻譯句子：二、同義句轉(zhuǎn)換二、同

36、義句轉(zhuǎn)換 1.Flat A is more expensive than Flat B Flat B is _ _ than Flat A.Flat B is _ _ Flat A.Flat B is not _ _ _ Flat A.2.I prefer maths to English.I like maths _ English.better than3.He is the tallest student in the class.He is _ in the class.taller than any other studentany other+名詞單數(shù)名詞單數(shù)lessexpensi

37、vecheaperthanasexpensiveas 1.Hainan is a very large Island.It is the second _ island in china.(large)2.busycarefulhappy6.I think Yao Ming is one of _ basketball players in NBA.(hot)busythe most carefulfartherhappierlargestthe hottest三、完成句子三、完成句子Homework Practice with your classmates to speak and write large numbers.Write some number cars and put them in your room.Whenever you see,read them quickly.