在共和国60多年历史的天空中，闪耀着无数的星星。他们当中，有为人民服务的好战士----雷锋，有县委书记的榜样----焦裕禄，有两弹元勋----邓稼先，有导弹之父----钱学森，有民族团结先进个人----孔繁森……还有千千万万的普通人，他们在平凡的岗位上书写着不平凡的人生，诠释着人生的意义。

结合上述材料，回答下列问题：

2015年10月29日，中共十八大五中全会公报宣布，中国将“全面实施一对夫妇可生育两个孩子政策”这是我国进入21世纪以来国家人口生育政策的盛大调整，其目的是（  ）

    Tom was only seven years old. He likes watching ____ very much. He ____ went to the movies before. One day, he ____ to have a try. When getting to the cinema, he bought a ticket (票) and went in. ____ after two or three minutes, he came out, and bought the second ticket and went in. After a few minutes, he came out again and bought the third ticket. 

    Then a girl ____ about him and asked, “Why do you buy so many tickets? How many friends do you meet?” “No, I have no friends here, but a woman always stops me at the door and tears (撕) my ticket.”

人们常说“作茧自缚”，说的是蚕发育过程的哪个时期 （　　）