阅读短文，然后从方框中选出可以填入文中空白处的单词

teacher   but    old    learn    with    boring     basketball    history    musician

Mr. and Mrs. Cooper are Americans. But now they are in Beijing ____ their kids. This is their first time to China.     

Mr. Cooper is a  ____. He sings very well. Mrs. Cooper is a ____. Her daughter studies at her school. Mrs. Cooper likes Beijing Opera very much. She thinks she can learn about Chinese ____ and culture. So she often goes to see Beijing opera. ____ her daughter doesn’t think so. She likes comedy , and her favorite movie is Mr. Bean. Mr. Cooper doesn’t like movies. He thinks they are____. He likes sports. His favorite sport is ____ . He likes Yao Ming very much. 

The Coopers want to go to Pingyao, Shanxi. It is an ____ and nice place. They want to take photos there. They can also____to speak Chinese. They can have a good time in China.

小明做“探究凸透镜成像规律”实验，让平行光垂直射到透镜时，在光屏上得到一个清晰的点，如图（甲）所示，透镜的焦距为____ cm．将此透镜、蜡烛和光屏放在图（乙）位置时，光屏上的像是模糊的，要使像变得清晰，在保持透镜和蜡烛位置不变条件下，光屏应向____移动．

 棉花是一种天然纤维，其主要成分是纤维素（C₆H₁₀O₅）_n．下列说法错误的是（　　）

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下图中①、②两图例通常表示的地理事物是（  ）

河南邓州开创了“四议两公开”工作法引起社会广泛关注。“四议两公开”工作法，就是所有村级重大事项都必须在村党组织领导下，按照“四议”、“两公开”的程序决策实施。“四议”即：党支部会提议、“两委”会商议、党员大会审议、村民代表会议或村民会议决议；“两公开”即：实施决议公开、实施结果公开。“四议两公开”的工作方法（   ）
①提高了政府的管理和服务水平    ②有利于人民群众依法直接行使民主权利
③推进了政府决策的科学化、民主化
④有利于实现党的领导、人民当家作主和依法治国的有机统一