Yosemite isn't the only great national park but based on my experience I highly recommend going out and enjoying nature with family and friends. It's a great time to bond, laugh, and take in what Mother Nature offers.

　　语篇解读：本文是一篇记叙文。作者通过讲述自己和家人一起游览美国的约塞米蒂国家公园的经历，建议人们多去户外亲近大自然。

　　4．The author writes the first paragraph mainly to ________.

　　A．introduce the topic of this passage

　　B．offer an example to us

　　C．tell us his future plan for hiking

　　D．describe a national park

　　解析：选A　写作意图题。通读全文尤其是第一段的第一句可知，文章主要介绍了作者和家人去约塞米蒂国家公园游玩的经历；据此可以判断，第一段旨在引出文章主题，故A项正确。

　　5．While climbing up rocks, the author was ________.

　　A．nerve­racking　　　　　 B．injured

　　C．pleased D．worried

　　解析：选C　推理判断题。根据第二段中的"Climbing up rocks was one of my favorite parts. Even though I fell a couple of times, I still had a lot of fun."可知，攀岩是作者最喜欢的项目，作者从中体会到了许多乐趣。C项意为"高兴的"，符合语境，故C项正确。

　　6．According to the passage, Yosemite ________.

　　A．is crowded with visitors every day

　　B．is the only great national park

　　C．is worth travelling to

　　D．is nothing but a common destination

　　解析：选C　推理判断题。根据第一段的最后一句"It actually ended up being a fun and adventurous experience."和第二段的第一句以及最后一段的内容可知，去约塞米蒂国家公园是一次快乐而冒险的经历；据此可知，约塞米蒂国家公园值得一游。

　　7．The author suggests ________.

　　A．keeping a good bond with other people

B．visiting Yosemite now and then