【解析】选B。动词辨析题。根据语境可知, 这次经历给我带来的收获远远超过一美元。gain(获得), 符合语境。

18. A. lessons B. skills

C. goals D. styles

【解析】选A。名词辨析题。联系前文所述, 可知此处的意思是"这是我所获得的最好的人生经验教育(lessons)之一", 所以答案选A。

19. A. only B. hardly

C. almost D. always

【解析】选D。副词辨析题。此处表示"无论我们多么贫穷, 我们总是(always)会有一些有价值(value)的东西与别人分享"。

20. A. importance B. amusement

C. value D. interest

【解析】选C。名词辨析题。见上一小题解析。

语法填空

　　阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。

　　(原创)The Silk Road, 1. __________ linked imperial Rome and distant China, was once 2. __________ (great) network of trade routes on earth. Along it traveled silk and gold, as well as revolutionary new ideas.

In time it 3. __________ (begin) to decline. The traffic slowed, the merchants left and 4. __________ (final) its towns disappeared beneath the desert sands to be forgotten for a thousand years. But tales grew up of 5. __________ (lose) cities filled with treasures and evil spirits. Then foreign explorers began to investigate these stories, and very soon an international race began for the art treasures of the Silk Road. Huge wall paintings, sculptures, and 6. __________ (price) antiques were carried away by 7. __________ ton, and today 8. __________ (exhibit) through the museums of many countries.

Contrary to the destroyers, China is trying to bring back the ancient concept of the Silk Road. Aiming 9. __________ (carry) forward the spirit of peace, cooperation, openness and inclusiveness (包容) for shared benefits, the New Silk Road has already received a warm response from over sixty 10. __________ (country).

【文章大意】本文是一篇说明文。介绍了古丝绸之路的兴衰以及在中国"一带一路"政策下新的丝绸之路的兴起。

1. 【解析】which。由句子结构可知, 这是一个非限制性定语从句, 先行词为物, 故填which。

2. 【解析】the greatest。根据句中"on earth"这一表示范围的词, 可知要用形容词的最高级形式。

3. 【解析】began。根据上下文语境可知要用一般过去时。

4. 【解析】finally。由句子结构可知, 该词修饰整个句子作状语, 因此用副词形式。

5. 【解析】lost。修饰名词要用形容词形式, lost此处意为"消失的", 符合语境。

6. 【解析】priceless。句意: 大型的壁画, 雕像和价值连城的古董被盗走。根据句意可知答案为priceless。

7. 【解析】the。"by the +度量名词"为固定用法。

8. 【解析】are exhibited/are being exhibited。根据and可知exhibit与carry awa