Unit5Period2Grammar课件外研版英语七年级下册

GrammarUnit5Amazingnature学习目标321Mastertheusageofcomparativesandsuperlatives;Completetheexercisesrelatedtocomparativesandsuperlatives;Talkaboutthemostbeautifulnaturalplaceinyouropinion.Tomistall.Johnistaller,butMikeisthetallest.TomJohnMike新课讲授bustrainRVcomfortablemorecomfortablemostcomfortable1.Theplateauisquieterthanthebigcities.2.Butwehavethebestpresentsfromnature.3.Inmyheart,it'sbetterthananyotherplace.4.I'mproudtosaythatI'mfromoneofthemost

beautifulplacesintheworld.Readthesentencesloudly.

Commonplaces?形容词、副词的比较级和最高级一、形容词、副词的比较级和最高级的概念Shesingsbetterthanme.Infact,shesingsthebestinourclass.她比我唱歌好。事实上,在我们班,她唱歌最好。二、形容词、副词的比较级和最高级的用法1.变化规则形容词、副词的比较级和最高级在形式上有规则变化和不规则变化两种。比较级“更……”,用于两者之间的比较,用来说明“前者比后者更……”最高级“……是最……的”,用于三个或三个以上的人或事物进行比较Presentation(1)规则变化口诀变化规则例词直单音节词,通常直接加er/esttall—taller—tallest去以不发音的e结尾,去e,加er/estnice—nicer—nicest双辅元辅,倒着数,单元素发音,整个音节重读big—bigger—biggest改以“辅音字母+y”结尾,改y为i,加er/esteasy—easier—easiest加多音节词,前面加more或mostimportant—moreimportant—mostimportant(2)不规则变化原级比较级最高级good/wellbetterbestmany/muchmoremostbad/badly/illworseworstlittlelessleastoldolder/elderoldest/eldestfarfarther/furtherfarthest/furthest2.形容词、副词的比较级句型:(1)“A+谓语动词/系动词+形容词或副词比较级+than+B.”ThisboyisyoungerthanI.这个男孩年纪比我小。【注意】在比较级前有时可加一些修饰语,如much,alot,alittle,still,even等以示强调或加强语气。

Thisboxisalittleheavierthanyours.这个箱子比你的要稍重一些。Thismovieismuchmoreinterestingthanthatone.这部影片比那部有趣得多。(2)“A+谓语动词/系动词+the+形容词或副词最高级(范围).”【注意】在句子前面或后面可以加上表示范围的介词短语或从句。

Ofallthestudentsinmyclass,shewritesthemostcarefully.在我班里所有的学生中,她写得最仔细。CompletethefactsaboutwondersinChina.TheYellowRiver:5,464kmTheYangtzeRiver:6,300kmTheYellowRiveris________thantheYangtzeRiver.MountTaishan:1,532.7mMountEmei:3,079.3mMountQomolangma:8,848.86mMountTaishanishigh.MountEmeiis_______.MountQomolangmaisthe________.shorterhigherhighestPracticeCompletethepassagewiththecorrectformofthewordsinbrackets.TheQiantangRiveris1________(short)thantheYangtzeorYellowrivers.Butit’sstilloneofthe2_____________(famous)riversinChina.It’sfamousforitstides.Usuallyit’sa3______(slow)river.Butwhenthetidescome,thewaterrunsmuch4_______(fast).Manytidesaretwometres5______(high).Butthe6________(high)tidescanbetenmetreshigh!shortermostfamousslowfasterhighhighestDoyouknowanyotherfamousriversintheworld?Howlongisit?Whatisitfamousfor?Workinpairsandmakeadialogueaboutafamousriver.Doyouknowanyotherfamousriversintheworld?Yes,IknowtheAmazonRiver.It’soneofthemostfamousriversintheworld.Howlongisit?It’sabout6,400kilometreslong.It’slongerthanmostrivers,butit’sshorterthantheNileRiver.Whatisitfamousfor?Itisfamousforitssize.Whatdoyouthinkisthemostbeautifulnaturalplace?TheGreatBarrierReefMountHuashanTheNileRiver大堡礁华山尼罗河ProductionWorkinpairs.Talkaboutthemostbeautifulnaturalplaceinyouropinion.TheGreatBarrierReefIt’slocatedoffthecoastofQueensland,Australia.It’sthelargestreefintheworld.Therearesomanycoloursthere.UsethewordsandexpressionsfromthereadingpassageandtheUsefulexpressionstohelpyou.What’sthemostbeautifulplaceintheworld,inyouropinion?Inmyopinion,it’stheGreatBarrierReef.It’sthelargestreefintheworld.WhereistheGreatBarrierReef?It’slocatedoffthecoastofQueensland,Australia.Whydoyoulikeit?Ilikeitbecausetherearesomanycoloursthere.Thewaterisclear.Youcanseedifferentcoloursofthereefandfish!UsefulexpressionsInmyopinion,themostbeautifulplaceis...Itislike...Wordscan’texpres