人教版八年級下冊Unit 7 What's the highest mountain in the world- Section A 1a-1c 課件

Unit7What’sthehighestmountainintheworld?SectionA1a-1cWhohasthebesteyesight視力？highestlongestheaviestdeepest(深的）oldestmorebeautifulbiggestlargestsmallestthemostcarefulbetterearlierlet’scheck!highestlongestheaviestoldestmorebeautifulbiggestlargestsmallestthemostcarefulbetterearlierdeepestPresentationsquaren.平方

廣場正方形方格metern.米eg:Tian’anMenSquare

65squaremetersdeepadj.深的

deeplyadv.在深處desertn.沙漠

adj.荒蕪的inthedesertQomolangmaSaharaTheCaspianSeaTheNileThetopoftheworld(世界之最）biggestdesert?deepestsaltlake(咸水湖）?longestriver?highestmountain?Matchthefactsyouknow.1aQomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighListenandcompletethesentences.1.Qomolangmais________thananyothermountainintheworld.2.TheSaharais_________desertintheworld.3.TheCaspianSeais__________ofallthesaltlakes.4.TheNileis_______________riverintheworld.1bhigherthelongesetthedeepestthebiggestPairwork:Usetheinformationin1btomakeconversationswithyourpartner.Whatisthehighestmountainintheworld?Qomolangma.Whatisthe…intheworld?…Itisthe…theSahara

-------thebiggestdeserttheCaspianSea

------thedeepestsaltlaketheNile

------thelongestriverQomolangma------

thehighestmountain拼讀千位以上的基數(shù)詞從個位起每隔三位加一逗號，依次添加thousand，million，billion，其中的每三位數(shù)仍按百位數(shù)讀。例如:9,999,999,999ninebillionninehundredandninety-ninemilionninehundredandninety-ninethousandninehundredandninety-nine.表示具體數(shù)目(確數(shù))時hundred，thousand和million須用單數(shù)。eightthousandeighthundredandforty-eightonethousandandtwenty-fivesixthousandsixhundredandseventy-oneninemillionsixhundredthousand9,600,0008,8481,0256,671Matchthefollowingnumbers小數(shù)英語表示法

小數(shù)用基數(shù)詞來表示,以小數(shù)點(diǎn)為界,小數(shù)點(diǎn)左首的數(shù)字為一個單位,表示整數(shù),數(shù)字合起來讀;小數(shù)點(diǎn)右首的數(shù)字為一個單位,表示小數(shù),數(shù)字分開來讀;小數(shù)點(diǎn)讀作point,o讀作zero或o.0.4------zeropointfour或pointfour零點(diǎn)四10.23-----tenpointtwothree十點(diǎn)一三25.67-----twenty-fivepointsixseven二十五點(diǎn)六七1.03------onepointothree一點(diǎn)零三

形容詞比較級和最高級的構(gòu)成規(guī)則變化a.一般情況下，單音節(jié)或雙音節(jié)的形容詞比較級直接加-er,最高級直接加-est。b.以-e結(jié)尾的形容詞，比較級+-r,最高級+-st。c.以輔音字母+y結(jié)尾的形容詞，變y為i+er或+est。

d.以重讀閉音節(jié)結(jié)尾，末尾只有一個輔音字母結(jié)尾的詞，雙寫最后一個輔音字母，再加+er或+est。e.多音節(jié)和部分雙音節(jié)形容詞，需在原級前+more

構(gòu)成比較級，+most構(gòu)成最高級。

不規(guī)則變化原級比較級最高級good/wellbetterbestbad/illworseworstlittlelessleastmany/muchmoremostfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest用比較級表示最高級最高級：Qomolangmaisthehighestmountainintheworld.Qomolangmaisthehighestmountainofallthemountains.比較級：Qomolangmaishigherthantheothermountainsintheworld.Qomolangmaishigherthananyothermountainintheworld.最高級常用結(jié)構(gòu)the+最高級(+單數(shù)名詞)+in/of.......

是......中最....·的Jimisthetallest(student)inhisclass.吉姆是班上最高的。Ijump(the)farthestofallthe

studentsinourclass.我是我們班跳得最遠(yuǎn)的。最高級常用結(jié)構(gòu)oneofthe+形容詞最高級+可數(shù)名詞復(fù)數(shù)+in/of...最......的之一Beijingisoneofthe

oldest

cities

in

China.北京是中國最古老的城市之一。Jimisoneofmybestfriendsjim是我最好的朋友之一。最高級常用結(jié)構(gòu)the+序數(shù)詞+形容詞最高級

第幾最.....TheYellowRiveristhesecondlongestriverinChina.黃河是中國第二長河。認(rèn)識最高級物體長寬高…的表達(dá)keysentences

千以上的數(shù)字表達(dá)keywords

SummaryQomolangmaSaharaTheCaspianSeaTheNileThebeautifulearthisourhomeland,weshouldpr