Unit21.rainbowCanyoutellmehowmanycolorsthereareintherainbow?2.mood(C)inagood/badmoodchangeone’smoods3.influence1)v.=affectColourscaninfluenceourmoods.2)n.haveagood/badinfluenceonsb4.whether：是否weather:天气是否whether=ifHewondersif/whetheritwillrainsoon.只能用whether1)whethertodosthTheproblemiswhethertogobybusorbyplane.2)whether…ornotIdon’tknowwhetherhewasright(ornot).3)介词后Theplandependsonwhetheritwillraintomorrow.5.characteristic---charactersharesimilarcharacteristics6.calm1)v.calmdown2)adj.keepcalm,calmcolours3)n.Bluerepresentscalm.7.relaxed(adj)--relax(v)makesbrelaxedrelaxoneself8.peace(n.)---peaceful(adj.)lovepeacerepresentpeaceliveapeacefullife9.sadness=unhappinesssad(adj)---sadly(adv)sadder,saddestdarkness,blindness,illness,carelessness10.purity(n)—pure(adj)Whiteisthecolourofpurity.11.weddingonone’sweddingday1