Question

这篇文章的线索是什么？主线是什么？最好能解释一下线索

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。

主线：就是指文章中事情发展的主要线路（条）。
本文是一篇高考题的完型填空题，现在是不是被改成了阅读理解了，还是？

追问

线索是什么含义

追答

线索就是指事情发展的线路，如时间呀，事件呀等。举个例子说：你从家到学校主要走哪条路，路上会经过哪些地方，这就是你去学校这件事的线索。

追问

那线索是不是和主线一样啊

追答

线索范围要广一点；而主线则是主要的条线索。还拿上面那个例子来说吧，你从学校到家不只一条路可去吧，但凡能去的都是你上学的线；但是你最爱走或说你经常走的那条则是主线了。