若代数式 $\frac{\sqrt{x-2}}{x-3}$有意义，则x的取值范围为____ ．

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.

材料一：在非洲西南纳米比亚的海岸线上,广阔的红色沙漠依偎着蔚蓝的大西洋, 在斯瓦科普蒙德和鲸港湾一带，高大沙丘的滚滚沙流飞泻入海,这就是壮观的"倒沙入海"奇景。下图为纳米比亚局部区域地形图。

材料二：非洲大陆东侧的马达加斯加岛与纳米比亚纬度相近，然而，马达加斯加地形独特，各地气候差异较大。其东部属于热带雨林气候，终年湿热，年降水量达2000-3800毫米，年平均气温约24℃；

阅读下面的元曲，完成下列各题。

天净沙•秋思

马致远

枯藤老树昏鸦，

小桥流水人家，

古道西风瘦马

夕阳西下，

断肠人在天涯。