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1、形容词、副词的比较级和最高级Aimsanddemands1.Howtoformthecomparativeandsuperlativedegreesofadjectivesandadverbs.(怎样构成形容词和副词的比较级和最高级）2.Howtousethecomparativeandsuperlativedegreesofadjectivesandadverbs.3.HowtoimproveourabilitiesofusingEnglish.Howtoformthem.单音节词，少数双音节形容词和副词的比较级和最高级的规则变化原级比较级最高级
2、tall----taller----tallestlong—longer—longestshort—shorter—shortest1:单音节词，少数双音节词在词尾加er构成比较级，加est构成最高级。nice--nicer--nicestlarge–larger--largestcute—cuter—cutest2:以不发音的e结尾的词,直接在词的后面加r构成比较级,加st构成最高级.hot–hotter--hottestbig—bigger—biggestfat—fatter—fattest3:重读闭音节词,如末尾只有一个辅音字母应先双写这个辅
3、音字母,再加er构成比较级，加est构成最高级。easy--easier–easiestheavy—heavier—heaviesthappy—happier—happiest4:以辅音字母+y结尾的词,先变y为i再加er构成比较级，加est构成最高级。5：双音节词,多音节词在词前加more/less构成比较级，加most/least构成最高级。双音节词,多音节形容词和副词的比较级和最高级的规则变化.quickly—more/lessquickly—most/leastquicklyheavily—more/lessheavily—most/lea
4、stheavilyfantastic—more/lessfantastic—most/leastfantastic注：clever,lovely,friendly等用-er和-est或more和most皆可。形容词/副词比较级和最高级的不规则变化good/well–better--bestbad/badly/ill–worse--worstold–older（旧）/elder（年龄）--oldest/eldestmany/much–more--mostlittle–less--leastfar–farther（距离）/further（意义）--fa
5、rthest/furthest巧记口诀：多与少，好与坏，相差不是很远。Howtousethem.形容词，副词比较级和最高级的基本用法1.同级相比（肯定），与……一样：用“as……as”LinTaoisascleverasJim.（否定）与……不一样：用“notas(so)……as”AnndoesnotdoascarefullyasJane.（同义句）Janedoes____________thanAnn.Anndoes____________thanJane.2.两者相比用“比较级”Thiscakeis________thanthatone.(sm
6、all)Whichis________,thesunorthemoon?(big)lesscarefullymorecarefullysmallerbigger3.三者或三者以上相比，用最高级，形容词最高级前加the,副词最高级形式句中the可以省略。TheYangtzeRiveristhelongestriverinChina.（同义句）TheYangtzeRiveris________than__________riverinChina.TheYangtzeRiveris________than__________riversinChina.l
7、ongeranyotherlongertheotherHowtoperfectthem.形容词,副词比较级和最高级的特殊用法.“比较级连用”,表示“越来越……”It’sgettingwarmerandwarmerinspring.She’smoreandmorecareful/beautiful.2.表示“比较程度”，常用alittle,alot,much,even修饰比较级。Heismuch/alottallerthanI.()Mybrotheris_____moreoutgoingthanme.A.manyB.littleC.muchc3.在最
8、高级前可以加序数词加the表示“第几最……的”TheYellowRiveristhesecondlongestriveri
