Unit2GrowingpainsGrammarandusage1.Helpstudentsknowmoreaboutattributiveclauses.2.Helpstudentsknowtheattributiveclausesintroducedby“preposition+which/whom”.3.Helpstudentsknowhowtousetherelativeadverbstobegintheattributiveclauses.1.Theattributiveclauseintroducedbyprep.+which–Whatarethepictureusedfor?–TheyarepicturesfromwhichyoucanknowmoreaboutthegrowingpainsinUnitTwo.Look!HereisamapfromwhichwecanknowmoreaboutChina.–Whatisthis?–Itisawonderfulsceneryfromwhichwecanknowmuchaboutthemountains.–Lookatthem.Theylovestheirkidsomuch.–ButIdon’tliketheway(inwhich/that/-)theytreattheirkid.关系代词作介词宾语，不论是在限制性定语从句中，还是在非限制性定语从句中，当介词前置时，只能用whom指人，which指物；但如果介词后置，则不受这种限制，关系代词还可以省去，特别是在口语中。如：1.Doyouknowtheboytowhomshewastalking?2.Doyouknowtheboy(that)shewastalkingto?3.Thepencil(which/that)hewaswritingwithsuddenlybroke.介词的选用原则(1)根据定语从句中谓语动词的习惯搭配来决定。如：①ThisisthebookonwhichIspent8yuan.②ThisisthebookforwhichIpaid8yuan.(2)根据先行词的搭配习惯来决定。如：①IrememberthedayonwhichIjoinedtheLeague.②IrememberthedaysduringwhichIlivedhere.③IrememberthemonthinwhichIstayedthere.(3)根据从句中动词与先行词的逻辑关系。Isthatthenewspaperforwhichyouoftenwritearticles?(4)根据从句中形容词的习惯搭配。CanyouexplaintomehowtousetheseidiomsaboutwhichI’mnotsure？含有介词的短语动词一般不拆开，介词仍放在短语动词的后面。如：lookfor,lookafter,takecareof等。①Thisisthewatch(which/that)Iamlookingfor.这是我正在找的手表。ThisisthewatchforwhichIamlooking.②Thebabies(whom/who/that)thenurseislookingafterareveryhealthy.那个保姆照看的小宝宝们都很健康。Thebabiesafterwhomthenurseislookingareveryhealthy.以theway为先行词的限制性定语从句通常由inwhich或that引导，而且通常可以省略。如：Theway(that/inwhich)heansweredthequestionswassurprising.他回答这些问题的方式令人惊奇。Idon’tliketheway(that/inwhich/--)youlaughather.我不喜欢你嘲笑她的样子。“介词+关系代词”前或后还可有some,any,none,all,both,neither,many,most,each,few等代词或者数词。如：①Heloveshisparentsdeeply,bothofwhomareverykindtohim.他深深地爱着他的父母，他们俩待他都很好。②Inthebaskettherearequitemanyapples,someofwhich(=ofwhichsome)havegonebad.篮子里有好些苹果，有些已经坏了。③Therearefortystudentsinourclassinall,mostofwhom(=ofwhommost)arefro