We’regoingonaspringfieldtrip.affordv.负担得起;提供affordanewhouseIcan’taffordit.lookforwardtodoingHowmucharethetraintickets?145×2=290+add,and,plus-minus,take…from×times÷dividedby=is,makes,equals2a.swf短语回顾想出,找出comeupwith订午餐orderalunch在中午atnoon把…提供给…suchas例如serve…to…Itiscommonto…Itisimpossibleto…Itis+adj.+todoExpressionsIt’svery_________to_________moneyinCanadianandAmericanschools.Students,teachersandparentshavemany___________toraisemoney__________fieldtrips.Someschools_________________greatideas,_________“KingorQueenforaDay”.It______eachstudentonedollartobuyaticketforthedraw.Aftertheticketsare_________,oneticketisdrawn.Thestudent______thewinningticketwillbethekingorqueenforthenextschoolday.课文回顾commonraisespecialwaysforcomeupwithsuchascostssoldwithWhenthestudent__________inthemorning,theheadmaster________himorherandcarriesthestudent’sbooks.Thestudentssits____theheadmaster’schairforthedayand_____canusetheheadmaster’scellphoneto_____home.Atnoon,theheadmasterand______teachers______aspeciallunchand_______ittothestudent.arrivesgreetsinevencallotherorderserve