When Alice was sixteen, I was the one who wanted to run away from home. It was 1 to see the changes coming over her. She skipped school, and refused to communicate. I tried being firm, but it didn‘t 2. I saw a dark future for my once sweet daughter.

    One school day Alice returned home very late. With a quarrel in view. I was surprised to see Alice was 3.

     “I hope I did the right thing, Mom,”“Alice said. I saw a cat, all bloody but alive. I 4it to the vet's(宠物医院), and was asked to make payment 5. As I couldn't reach anyone at the phone number on the cat's tag(标牌), I had to pay the bill.”

    In the following days, the owner still couldn't be 6. Alice paid the vet to continue treatment. I grew 7: what if the family had simply left the cat behind?

    A week went by. A woman called to speak to Alice.

    “She is at school,” I said.

    “You have a 8daughter,” she said, apparently in tears.

    Her family had just returned from abroad, and got a (n) 9 from the vet. Their cat was recovering, thanks to Alice's 10. “We can't wait to hug Cuddles again,” she sobbed.

    Upon her return home, Alice was filled with 11at the news. So was I. I learned through another woman's eyes that my daughter was still a good person despite her 12teenage years. Her warm heart would surely guide her in the right direction.

把下列句子组成语意连贯的语段，排序最恰当的一项是(　　)
①大气层中的二氧化碳、水蒸气等气体对红外辐射有着非常强的吸收能力。　②地球向外辐射的能量在一定程度上被“截留”下来。　③太阳光照射到地球表面上，有一部分被大气层或者地面反射。　④地球表面以及靠近地面的大气层，变得有如温室一般。　⑤地球被照射后会以红外的长波方式向外辐射能量。

用四舍五入法对31500取近似数，精确到千位，用科学记数法可表示为____。