问题 填空题

右图展示的是四川大凉山深处彝寨同学攀登木制云梯上学的情景,在攀登上升过程中,如果以     为参照物,可以判定其中一位同学是运动的;他的重力势能会      (选填“增大”、“不变”或“减小”)。

答案

地面(或相对于地面静止的物体) 增大

为了研究物体的运动而假定静止的物体,叫做参考系。对同一物体的运动,所选的参考系不同,对它的运动描述就不同,通常以大地作为参考系来研究物体的运动。在此题中我们要是选择大地或者相对大地静止的物体(如树木,梯子等)人都是运动的。

重力势能在高中会学到它的公式是Ep=mgh,m是物体的质量,g是重力加速度为9.8不变(其实也是会变的,这里不详细说明);h是相对高度。也就是说物体的重力势能只与物体的质量和高度有关,这里物体质量不变,高度增加,所以重力势能增加。

阅读理解

Writing a good story is not an easy task. What’s the secret? Mo Yan, last year’s Nobel Prize winner in literature, believes his success comes from a large amount of reading.

Mo was born into a farming family in a village in Shandong province. He grew up listening to folk stories about gods, spirits and foxes. Those stories later became the inspiration(灵感) for Mo’s writing.

Mo left school at the age of 12 and started to work in the fields.

Although he was tired after his daily hard work, Mo was always hungry for books. However, there were very few in the village. He read his older brother’s textbooks and even dictionaries. He helped others with farm work in exchange for books.

“When I finished reading all the books around, I thought I was the most knowledgeable man in the world,” he told Xinhua.

After Mo left his hometown and joined the army in 1976, he began to read widely, including works by Lu Xun and many other famous writers. He studied from these writers but did not copy them. Instead, he developed his own style. As the first Chinese citizen to win a Nobel Prize in literature, Mo told a group of reporters in his hometown shortly after he won the award. “I grew up in an environment filled with folk culture. It enters my novels whenever I pick up a pen. This has affected, even decided, my style.” 

小题1:Mo Yan is from         .

A.Shandong

B.Shanxi

C.Jiangsu

D.Guangdong小题2:Mo Yan developed his own style          .

A.while listening to folk stories about gods, spirits and foxes.

B.during his daily hard work in the fields.

C.after he studied from many famous writers

D.when he won the Nobel Prize in literature小题3:Which of the following is wrong?

A.Mo Yan left school when he was very young.

B.Mo Yan read many books when he was very young.

C.Mo Yan was the most knowledgeable man in the world.

D.Mo Yan is the first Chinese citizen to win a Nobel Prize in literature.小题4:What can we learn from Mo Yan’s success?

A.Easier said than done.

B.Rome was not built in a day.

C.Well begun, half done.

D.The older, the wiser.

填空题