阅读下面短文,从短文后各题所给的四个选项(A,B,C和D)中,选出可以填入空白处的最佳选项。

    Smith, an old man, lived in the middle of the town. One day he found his watch1in his own store. It 2a lot to him because it was from his wife. After searching3in the store for a long while, he 4to ask for help from a group of children playing outside the store. He5them that the person who found it would be rewarded. 6this, the children hurried inside the store, went through and around the 7store, but still could not find the watch.

    Soon the man felt hopeless and wanted to8. A little boy went up to him and asked for another9 . The man looked at him and thought, “ Why not? 10, this kid looks sincere enough.”11the man sent him back in the store. After a while the boy 12 with the watch in his hand! The man was very13, and he asked the boy how he found it while the others had 14 . The boy replied, “I did nothing but sat on the ground and 15 .Then I heard the ticking (嘀嗒声) of the watch and just looked for it in that 16.”

    We usually do something in a hurry and don't think about our own needs, which can't bring peace into our mind. 17 we need to think about ourselves and keep peaceful for a while, which can produce a 18 result. So allow a few minutes of 19 to your mind every day, and see how it helps you deal with your work and make 20as you expect to!

①顺着毛的生长方向运动时毛皮产生的阻力可以忽略；

②逆着毛的生长方向运动时会受到来自毛皮的滑动摩擦力．

他作为东西方文化交流的使者，在中国元朝生活了17年，他奇异的经历和广博的见闻，生动地留在了一部脍炙人口的著作中。他是（   ）

①每一间的横槛上都有五彩的画，画着人物、花草、风景，几千幅画没有哪两幅是相同的。

②每一间的横槛上都有五彩的画，画着人物、花草、风景，几千幅画几乎没有哪两幅是相同的。

③游船、画舫在湖面慢慢地滑过，不留一点儿痕迹。

④游船、画舫在湖面慢慢地滑过，几乎不留一点儿痕迹。