Unit-7-Whats-the-highest-mountain-in-the-world-Sec

形容词和副词有三种形式：原级，比较级和最高级。比较级用于两个人或事物的比较，是在原级形式的基础上变化的，可分为规则变化和不规则变化。形容词、副词比较级规则变化和不规则变化。规则变化（单音节或部分双音节的形容词或副词）1)一般情况下，比较级＋er，如：clever－clevererfew－fewersmall－smaller等。2)以e结尾的词，比较级＋r即可。如：nice－nicercute－cuterlarge－larger3)以辅音字母＋y结尾的变y为i＋er如:easy－easierhappy－happier再如：early,busy,heavy,dirty,lazy也如此。4)以辅元辅结尾的双写最后一个辅音字母＋er的词。1.fat－fatter2.thin－thinner3.hot－hotter4.red－redder5.wet－wetter6.big－bigger5)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。如：beautiful－morebeautiful又如:delicious,popular,important,interesting,expensive,exciting双音节的词如:careful－morecarefuluseful－moreuseful少数单音节词也是这样，如：pleased－morepleasedtired－moretiredb)不规则变化：good(well)—bettermany(much)—morelittle—lessbad－worsefar—farther(距离远)far—further(程度深)old—elder(长幼)old—older(年龄)tallnicebigfunnyexcitinghothottertallernicerbiggerfunniermoreexcitinglateexpensivethinsmarthighfatbeautifulmorebeautifullatermoreexpensivethinnersmarterhigherfatter写出下列单词的比较级。heavyquickserioussmartoutgoingquicklyheavierquickermoreserioussmartermoreoutgoingmorequickly写出下列单词的比较级。goodbadlittlemanymuchfarcarefulbetterworselessmoremorefarther/furthermorecareful二、用比较级形式填空1.Tom’sbikeisnew,butJohn’sbikeis______.(new)2.Tom’sschoolbagisbig,butJohn’sschoolbagis_________.(big)3.Tom’shouseissmall,butJohn’shouseiseven_________.(small)4.Tom’scoatislong,butJohn’scoatiseven_________.(long)5.Tom’sdeskisgood,butJohn’sdeskis______.(good)6.Ourroomisbiggerthan__________(they)newerbiggersmallerlongerbettertheirs最高级用于三个人或事物的比较，可分为规则变化和不规则变化。ofall/intheworld/amongus/…oneof…后oneofthetallestboy序数词后thesecondlongestriver形容词、副词最高级规则变化和不规则变化。规则变化（单音节或部分双音节的形容词或副词）1)一般情况下，比较级＋est，如：clever－cleverestfew－fewestsmall－smallest等。注：句子中，形容词最高级前必须加the2)以e结尾的词，比较级＋r即可。如：nice－nicestcute－cutest3)以辅音字母＋y结尾的变y为i＋est如:easy－easiesthappy－happiest再如：early,busy,heavy,dirty,lazy也如此。4)以辅元辅结尾的双写最后一个辅音字母＋est的词。1.fat－fattest2.thin－thinnest3.hot－hottest4.red－reddest5.wet－wettest6.big－biggest5)多音节和部分双音节的词需要在形容词原级前＋most构成最高级。如：beautiful－mostbeautiful又如:delicious,popular,important,interesting,expensive,exciting双音节的词如:careful－mostcarefulpolite－mostpolite少数单音节词也是这样，如：pleased－mostpleasedtired－mosttiredb)不规则变化：good(well)—bestmany(much)—mostlittle—leastbad－worstfar—farthest(距离远)far—furthest(程度深)old—eldest(长幼)old—oldest(年龄)tallnicebigfunnyexcitinghothottesttallestnicestbiggestfunniestmostexcitinglateexpensivethinsmarthighfatbeautifulmostbeautifullatestmostexpensivethinnestsmartesthighestfattest写出下列单词的最高级。heavyquickseriouspoliteoutgoingquicklyheaviestquickestmostseriousmostpolitemostoutgoingmostquickly写出下列单词的比较级。goodbadlittlemanymuchfarcarefulbestworstleastmostmostfarthest/furthestmostcareful二、用比较级形式填空1.Tom’sbikeis______(new)inhisclass.2.Tom’sschoolbagisbig,butJohn’sschoolbagis_________(big)amongus.3.Tom’shouseisoneof_________(small)houses.4.Tom’scoatislong,butJohn’scoatiseven_______.(long)5.Tom’sdeskisthebest,butJohn’sdeskisthesecond______.(good)thenewestthebiggestthesmallestlongerthebest百位数的读法700503946sevenhundredfivehundredandthreeninehundredandforty-six英语数字的读法注：百位和十位之间要加一个and1,001thousandonekeyonethousandandone千位数的读法(三个数字前要写一个,)one8,4485,0091,0519,243eightthousandfourhundredandforty-eightfivethousandandnineonethousandandfifty-oneninethousandtwohundredandforty-three11,111Onehundredandelevenkeyeleventhousand,onehundredandeleveneleventhousand万位数（十千）的读法万位数（十千）的读法10,000----tenthousand20,001----twentythousandandone30,010----thirtythousandandten70,111----seventythousandonehundredandeleven51,111---fifty-onethousandonehundredandeleven万位以上不到百万的读法:用逗号隔开，第一个逗号读成thousand111,111:onehundredeleventhousandonehundredandeleven222,222:twohundredtwentytwothousandtwohundredandtwenty-two1,111,111onehundredelevenoneonehundredandelevenmillionthousandonemilliononehundredeleventhousandonehundredandeleven百万的读法1,000,000-----onemillion1,111,111-----onemilliononehundredeleventhousandonehundredandeleven1,000,001---onemillionandone•2,435,678----twomillionfourhundredthirtyfivethousandsixhundredandseventy--eight•121,435,678----onehundredtwentyonemillionfourhundredthirtyfivethousandsixhundredandseventy--eight111,121,435,678billionmillionthousandonehundredelevenbilliononehundredtwentyonemillionfourhundredthirtyfivethousandsixhundredandseventyeight十亿的读法•5,721,432,874----•fivebillionsevenhundredtwentyonemillionfourhundredthirtytwothousandeighthundredandseventyfour•311,679,231,605----threehundredelevenbillionsixhundredseventyninemilliontwohundredthirtyonethousandsixhundredandfive数词的解读技巧特大数字如果在万分位以上的话，是通过三位三位的读,来读出数值(只在最后的百十位之间加and)215,645,748,193•一般的排列顺序是从大到小,billion,million,thousand,hundred.这些英文的数值代表三位三位的进位读法，每次读完一个单元后，就加上这些数值。•twohundredfifteenbillionsixhundredforty–fivemillionsevenhundredforty–eightthousandonehundredandninety–threeLet’stalk!•Whatdowelearninageographyclass?geographyLet’senjoythebeautyofnature!mountaindesertriverlakeoceanfreshlakesaltlake•5,721,432,874----•fivebillionsevenhundredtwentyonemillionfourhundredthirtytwothousandeighthundredandseventyfour•311,679,231,605----threehundredelevenbillionsixhundredseventyninemilliontwohundredthirtyonethousandsixhundredandfiveGeographicfacts地理常识the