这篇文章的线索是什么?主线是什么?Iwasasingleparentoffoursmallchildren,workingatalow-paidjob.Moneywasalwaystightbutwehadaroofoverourheads,foodonthetable,clothesonourbacksandifnotalot,alwaysenoughNotkn

Question

这篇文章的线索是什么?主线是什么?
I was a single parent of four small children,working at a low-paid job.Money was always tight but we had a roof over our heads,food on the table,clothes on our backs and if not a lot,always enough Not knowing we are poor,my kids (孩子) just thought I was strict I’ve always been glad about that.
It was Christmas time,and although there wasn't money for a lot of gifts,we planned to celebrate with a family party.But the big excitement for the kids was the fun of Christmas shopping
They planned weeks ahead of time,asking each other what they wanted for Christmas.Fortunately,I had saved $120 for presents to share by all five of us.
The big .day arrived.I gave each kid a twenty-dollar bill and reminded them to look for gifts of about four dollars each.Then everyone scattered (散开).We had two hours to shop; then we would meet back at the "Santa's Workshop".
Driving home everyone was in high Christmas spirits,except my younger daughter,Ginger.Who always usually quiet.She had only one small,fiat bag with a few candies — fifty cent candies!I was so angry,but I didn't say anything until we got home.I called her into my bedroom and closed the door,ready to be angry again.This is what she told me:I was looking around
thinking of what to buy,and I stopped to read the little cards on the ' Giving Trees.' One was for a little girl,four years old,and all she wanted for Christmas was a doll (玩具娃娃).So 1 took the card off the tree and bought the doll for her.We have so much and she doesn't have anything."
I never felt so rich as I did that day.

Answer 1

这篇文章的主线：单亲-->家里穷-->孩子认为家长要求严格-->计划庆祝圣诞节 -->给钱给孩子-->带孩子购圣诞礼物 --> 回家-->孩子们很高兴除小女儿外-->只有少量糖果——>欲生气--> 问缘由 -->知真相：小女儿有爱心.主...