八年級(jí)下7單元

Unit7What sthehighestmountainintheworld 形容詞的最高級(jí)意為 最高的 Qomolangmaisthehighestmountainintheworld 珠穆朗瑪 形容詞副詞比較級(jí)和最高級(jí)有規(guī)則變化和不規(guī)則變化 規(guī)則變化 1 一般情況下 單音節(jié)或雙音節(jié)的形容詞 或副詞 比較級(jí) er 最高級(jí) est如 clever cleverer cleverestfew fewer fewestsmall smaller smallest 2 以e結(jié)尾的詞 比較級(jí) r 最高級(jí) st如 nice nicer nicestcute cuter cutestlarge larger largest 3 以輔音字母 y結(jié)尾的變y為i er或est如 easy easier easiesthappy happier happiestearly earlier earliestbusy busier busiestheavy heavier heaviestdirty dirtier dirtiestlazy lazier laziest 4 雙寫最后一個(gè)輔音字母 er或estfat fatter fattestthin thinner thinnesthot hotter hottestred redder reddestwet wetter wettestbig bigger biggest 5 多音節(jié)和部分雙音節(jié)的詞需要在形容詞原級(jí)前 more構(gòu)成比較級(jí) themost構(gòu)成最高級(jí) 如 beautiful morebeautiful themostbeautiful delicious popular important interesting expensive雙音節(jié)的詞如careful morecareful themostcarefuluseful moreuseful themostuseful 不規(guī)則變化 形容詞 副詞比較級(jí) 最高級(jí)不規(guī)則表good well better bestbad badly worse worstlittle less leastold older 年齡 elder 輩分 theelderly 老人 oldest eldestmany much more mostfar farther further farthest 表距離 furthest 表程度 Late later latter 后者 latest 用于時(shí)間 表示 最新的 最近的 形容詞副詞比較級(jí)最高級(jí)的特殊用法 1 than的句型 比較級(jí) than 比較對(duì)象Theboyistallerthanthatone 2 比較級(jí)之前用the特指兩個(gè)中的更 的一個(gè)Theolderboyofthetwoboysismybrother 3 As 原級(jí) as和 一樣notso as as和 不一樣Sheisastallashermother Idon trunsofastasmybrother 4 比較級(jí) and 比較級(jí) 多音節(jié)詞用moreandmore 原級(jí)表示越來(lái)越 Itgetshotterandhotter Thegirlisgettingmoreandmorebeautiful 5 who which be 比較級(jí) AorB Whoisfatter TomorJohn 6the加比較級(jí) the加比較級(jí) 表示 越 就越 Theolderyouare themoreyouwillknowaboutit7 在比較級(jí)前用much alot even still far alittle等程度副詞用來(lái)加強(qiáng)語(yǔ)氣Todayisalittlecolderthanyesterday 8 oneof 最高級(jí) 復(fù)數(shù)名詞 表示最 之一TheYellowRiverisoneofthelongestriversinChina 9 比較級(jí) than anyother 單數(shù)名詞 有other強(qiáng)調(diào)在同一范圍之內(nèi) Heisheavierthananyotherstudentinhisclass Heistheheavieststudentinhisclass 形容詞 副詞 原級(jí) 比較級(jí)和最高級(jí) 練習(xí) I 用適當(dāng)形式填空 1 Bobis young thanFredbut tall thanFred 2 YingTianisnotas tall asYongXian 3 Almostallthestudents facesarethesamebutLiDeminglooks fat thanbeforetheholidays 4 Whichis heavy ahenorachicken 5 How tall isSally She s1 55meters tall WhataboutXiaoling She sonly1 40meters tall Sheismuch short thanSally Sheisalsothe short girlintheclass 6 Heis bad atlearningmath Heismuch bad atChineseandheisthe bad atEnglish yonger taller tall fatter heavier tall high high shorter shortest bad worse worst 7 AnniesaysSallyisthe kind personintheworld 8 Heisoneofthe friendly peopleintheclass Ithink 9 Adictionaryismuch expensive thanastory book 10 Anorangeisalittle big thananapple butmuch small thanawatermelon 11 TheChangjiangRiveristhe long riverinChina 12 Sueisalittle beautiful thanhersister 13 Myroomisnotas big asmybrother s 14 Howdifficultisphysics I mnotsure Isit difficult thanmath Idon tthinkso 15 Annieplaysthepianovery well Sueplaysit well thanAnnie AndSallyplaysitthe well kindest Mostfriendly moreexpensive bigger smaller longest morebeautiful big moredifficult well better best 基數(shù)詞 1 從1 10one two three four five six seven eight nine ten 2 從11 19eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen 這里除eleven twelve thirteen fifteen eighteen為特殊形式外 fourteen sixteen seventeen nineteen都是由其個(gè)位數(shù)形式后添加后綴 teen構(gòu)成 3 從21 99整數(shù)幾十中除twenty thirty forty fifty eighty為特殊形式外 sixty seventy ninety都是其個(gè)位數(shù)形式后添加后綴 ty構(gòu)成 表示幾十幾時(shí) 在幾十和個(gè)位基數(shù)詞形式之間添加連字符 如 21twenty one76seventy six 4 百位數(shù)個(gè)數(shù)基數(shù)詞形式加 hundred 表示幾百 在幾十幾與百位間加上and 101ahundredandone320threehundredandtwenty648sixhundredandforty eight 5 千位數(shù)以上 每三位數(shù)加一個(gè)逗號(hào) 從右開始 第一個(gè) 前的數(shù)字后添加thousand 第二個(gè) 前面的數(shù)字后添加million 第三個(gè) 前的數(shù)字后添加billion 兩個(gè)逗號(hào)之間最大的數(shù)為百位數(shù)形式 2 648twothousandsixhundredandforty eight5 237 166 234fivebillion twohundredandthirty sevenmillion onehundredandsixty sixthousand twohundredandthirty four 6 基數(shù)詞在表示確切的數(shù)字時(shí) 不能使用百 千 百萬(wàn) 十億的復(fù)數(shù)形式 但是 當(dāng)基數(shù)詞表示不確切數(shù)字 如成百 成千上萬(wàn) 三三兩兩時(shí) 基數(shù)詞則以復(fù)數(shù)形式出現(xiàn) Therearehundredsofpeopleinthehall大廳里有數(shù)以百計(jì)的人 Thousandsandthousandsofpeoplecometovisitthemuseumeveryday每天有成千上萬(wàn)的人來(lái)參觀博物館 有時(shí)兩個(gè)復(fù)數(shù)形式的基數(shù)詞連用可寫hundredsofthousandsof tensofhundredsof等等 Theywenttothetheatreintwosandthrees 他們?nèi)齼蓛傻貋?lái)到了劇院 7 表示人的不確切歲數(shù)或年代 用幾十的復(fù)數(shù)形式表示 Hebecameaprofessorinhisthirties 他三十多歲時(shí)成為了教授 Itwasinthe1960s 那是在二十世紀(jì)六十年代 Presentation squaren 平方 metern 米 deepadj 深的 desertn 沙漠 populationn 人口 Asian 亞洲 tourv n 旅行 touristn 旅行者 walln 墻 amazingadj 令人大為驚奇的 ancientadj 古代的 wideadj 寬的 寬闊和 Doyouknowtheseinterestplaces Qomolangma QomolangmarunsalongtheborderbetweenChinaandNepal Itiscoveredwithsnowalltheyearround It s8844 43high thehighestintheworld It s26kilometerslong TheNileisthelongestriverintheworld It smorethan6600kilometerslong Itrunsthrough9countries it soneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea 地中海 intheend TheNile TheCaspianSea TheCaspianSeaisthebiggestlakeintheworld ItliesintheborderbetweenAsiaandEurope TheSaharaisthebiggestdesertintheworld ItislocatedinthenorthernAfrica climateconditionsareverybad isoneoftheearth smostnotsuitableforbiologicalsurvival TheSahara TheYangtzeRiveristhethirdlongestriverintheworld thefirstAsianrivers It s6211 31kilometerslong TheYangtzeRiverBasin east westwidthof3219kilometers about966kilometerswidenorth south passingthrough11provinces ItrunsintotheEastSeainShanghaifinally TheYangtzeRiver 中國(guó)的長(zhǎng)城共有近一萬(wàn)公里 東起河北秦皇島的山海關(guān) 西到嘉峪關(guān) 這是明代修筑長(zhǎng)城的兩個(gè)最大關(guān)口 北京境內(nèi)的長(zhǎng)城有600余公里 比較著名的有八達(dá)嶺長(zhǎng)城 金山嶺長(zhǎng)城 司馬臺(tái)長(zhǎng)城 慕田峪長(zhǎng)城 居庸關(guān)長(zhǎng)城和箭扣長(zhǎng)城等 TheGreatWall 1aMatchthefactsyouknow 1bListenandcompletethesentences 1 Qomolangmais thananyothermountainintheworld 2 TheSaharais desertintheworld 3 TheCaspianSeais ofallthesaltlakes 4 TheNileis riverintheworld higher thebiggest thedeepest thelongest 2aListenandnumberthefacts 1 4 intheorderyouhearthem 6 3005 0005 464300 TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS butitisthebiggestcountryinAsia 4 2 1 3 2bListenagainandfillintheblanksin2awiththenumbersinthebox 6