依次填入下面一段文字横线处的语句，衔接最恰当的一组是(   )
专心学习一门技艺的人，较之聪颖但不专攻的人______， ______。______；______，两者是有差别的。
①而后者恃才妄为，做事轻率   ②纵然技艺还可能不够纯熟
③也有过之而无不及           ④大体上，前者专心致志，谨慎行事

下图是同一细胞在不同的分裂时期的图像，据图分析可作出的判断是

阅读理解
   The best thing about going to school is learning how to read. Books are great friends. They can help you to learn about anything you want to know. They can go anywhere with you. You can read about animals, faraway places, people, and anything else.
   Books are written by people called authors(作者). Authors think of things they want to write about. They make a plan for a book and start to write .Some authors write books that give us information(信息)and teach us things. Authors are very important people because they help us learn. Find a good book to read and read every day ,You will enjoy your time with a good book.