初中英语八年级下册 Section Aa-2d（省一等奖）

SectionA1a—2dWhat'sthehighestmountainintheworld?Unit7Period1SectionA(1a-2c)Nowlet’slookatthetitleofUnit7andtalkaboutgeographyandnatureintheworld.Lookatsomepictures.Qomolangmathehighestmountainintheworld8844.43metershightheSaharathebiggestdesertintheworldAbout9,600,000km2insizetheCaspianSeathedeepestofallthesaltlakes1,025metersdeeptheNilethelongestriverintheworld6,671kilometerslong1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1bListenandcompletethesentences.1.Qomolangmais_________thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongestUsetheinformationin1btomakeconversations1cA:Whatisthehighestmountainintheworld?B:Qomolangma.Whatisthelongestriverintheworld?TheNile.Whatisthebiggestdesertintheworld?TheSahara.Nowlet’scomebacktoourmotherland---China1.TheYangtzeRiveris_____theYellowRiver.A.longerthanB.aslongasC.shorterthan2.ThepopulationofChinais____thatoftheUS.A.biggerthanB.asbigasC.smallerthan3.Chinais_____intheworldA.theoldestcountryB.theyoungestcountryC.oneoftheoldestcountries4.Chinahas__theUS.A.ashorterhistorythanB.amuchlongerhistorythanC.thesamehistoryasACABLookatsomenumbersandreadthem.6,3005,0005,464300sixthousandthreehundredfivethousandfourhundredandsixty-fourfivethoudsandthreehundredListenandfillintheblanksin2awithnumbersinthebox.2b*

TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris________kilometerslong.**Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.6,3005,4646,3005,0005,464300***Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_________yearsold.****ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.5,0003002dListentoaconversationbetweenaguideandtouriststhenchoosethebestanswerLet’spayavisittoaplaceofinterest(名胜）inChina.1.Thetouristsaregoingonatourto____.A.theGreatWallB.theSummerPalaceC.theWestLake2.Howlongisthewall?_______kilometers.A.10000B.8850C.88443.Whydidtheybuildthewall?Thereasonwas_____.A.becauseit’sbeautiful.B.becausepeoplelikeit.C.becausethekingthoughtitcouldprotect(保护)thecountry.4.__isthemostfamouspartoftheMingGreatWall.ABadalingB.Tian’anmenC.BeijingUniversityABCA1.世界上最高的山是哪座？

2.我们的学校和那个花园一样漂亮。

3.长江比黄河长。4.中国是亚洲最大的国家。(Asia)

5.我认为英语是最有趣的科目之一。

Whatisthehighestmountainintheworld?Ourschoolisasbeautifulasthegarden.

TheYangtzeRiverislongerthantheYellowRiverChinaisthebiggestcountryinAsia.ChinaisbiggerthananyothercountryinAsia.IthinkEnglishisoneofthemostinterestingsubjects.大多数形容词有三个级。1.原级:Structure:as...as...像..….一样e.g.Timisas

tallas

Tom.2.比较级(用于两者之间的比较):Structure：形容词比较级＋than...e.g.Thisboxisbigger

thanthatone.形容词和副词的比较级和最高级3.最高级(用于三者或三者以上的比较):Structure:the+形容词的最高级＋of/in...

e.g.Tomistheheaviestinourclass.

Heisthemostpopularinourschool.

规则变化

1)一般情况下，单音节或双音节的形容词/副词比较级＋er，最高级＋est。如:clever—cleverer—cleverest

few—fewer—fewest

small—smaller—smallest等。形容词、副词的比较级和最高级规则变化和不规则变化2)以e结尾的词，比较级＋r，最高级＋st

即可。如：nice—nicer—nicest

cute—cuter—cutest

large—larger—largest3)以辅音字母＋y结尾的变y为i＋er或est

如:easy—easier—easiest

happy—happier—happiest

再如：early,busy,heavy,dirty,lazy也如此。4)重读闭音节，单辅音结尾的，双写这个辅音字母＋er

或

est的词：①

fat—fatter—fattest

②thin—thinner—thinnest

③hot—hotter—hottest

④red—redder—reddest⑤wet—wetter—wettest

⑥big—bigger—biggest

5)多音节和部分双音节的词需要在形容词原级前＋more构成比较级，＋themost构成最高级。如：beautiful－morebeautiful－themostbeautiful又如:delicious,popular,important,interesting,expensive,creative双音节的词如:

careful－morecareful－themostcareful

useful－moreuseful－themostuseful少数单音节词也是这样，如：pleased—morepleased—themostpleasedtired—moretired—the

mosttiredb)不规则变化：

good—better—best

well—better—best

bad—worse—worst

many/much—more—most

far—farther—farthest

(距离远)

far—further—furthest

(程度深)old—elder—eldest

(长幼)

old—older—oldest

(年龄)三者或三者以上相比，表示最高程度时，用“the+最高级”的结构表示。这种句式一般常有表示比较范围的介词短语。例如：ZhangHuaisthetallestofthethree.Heworks(the)hardestinhisclass.最高级的用法2.最高级可被序数词以及much，byfar，nearly，almost，bynomeans，notquite，notreally，nothinglike

等词语所修饰。例如：Thishatisbyfar／much／nearly／almost／notnearly／byn