题目

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 I don't think it's my parents' job to check my homework. Since we have already grown up, we cannot act like little (baby) and depend on our parents all the time. We must learn to be (independence). I remember when I was in Grade Three, my parents (ask) me to check my homework by myself. I didn't know what to do at first, so I only cried. But after that, I got used to (check) my own homework in my studies. Checking homework by ourselves is good habit. It can help us find mistakes in exams more (2010年3月以来，北大西洋极圈附近的冰岛发生大规模火山喷发，火山灰蔓延使欧洲航空业蒙受重大损失。下图为火山喷发图片。据此完成问题。 1.蔓延的火山灰物质在地球圈层中迁移的顺序是A.大气圈→水圈、生物圈→岩石圈B.岩石圈→大气圈→水圈、生物圈C.水圈、生物圈→大气圈→岩石圈D.水圈、生物圈→岩石圈→大气圈2.这些火山灰物质来自A.岩石圈B.上地幔C.下地幔D.地核