Recently, a self-made sign post at Yuelu Mountain in Changsha, Hunan province has become popular on the Internet. It said, “If you feel unloved, go mountain climbing, after which you will feel so tired that you won’t think about it.” 

Many people go to the mountain to take pictures with the sign. One can find the sign on a small road near the west gate of the mountain. The sign has also become a must visit for travelers. A staff member from the Yuelu Mountain scenic spot management office said the office did not put up the sign, but it has become famous. 

The sign was actually put up by mountain climbing lovers. The “heart-shaped track (路线)” on Yuelu Mountain has also become welcomed recently, with visitors exploring a new track to climb the mountain, which forms the shape of a heart. While one can reach the mountain top, which is about 300 meters high, in about 30 minutes through a concrete (混凝土制的) road, the heart-shaped track is much longer and takes about three to four hours to complete.

A 28-year-old woman said she and her friends tried the heart-shaped track a few days ago and did not feel very tired. “Many people do not exercise often and are not in very good health, so the sign is a way to joke about mountain climbing,” she said.

1.Why do many people come to Yuelu Mountain?

A To enjoy the beauty of nature.

B To build themselves up.

C To take pictures with a sign.

D To lose weight.

解析：选C。C细节理解题。根据第二段第一句“Many people go to the mountain to take pictures with the sign.”可知，湖南长沙的岳麓山因为一个标语“火”了一把，不少游客争相来到了岳麓山“打卡”，留下合照。故选C。

2.Who put up the sign?

A Some mountain climbing lovers.

B A staff member.

C Some college students.

D Some police officers.

解析：选A。A细节理解题。根据第三段第一句“The sign was actually put up by mountain climbing lovers.”可知，这块路牌是由一些登山爱好者自发设立的。故选A。

3.How long does it take to reach the mountain top through a concrete road?

A An hour.

B Half an hour.

C Three hours.

D Four hours.

解析：选B。B细节理解题。根据第三段最后一句“While one can reach the mountain top, which is about 300 meters high, in about 30 minutes through a concrete road”可知，如果沿着一条水泥路线路爬岳麓山，爬升高度300米左右，30分钟左右可到达山顶。故选B。

4.What does the woman think of the heart-shaped track?

A Boring.

B Tiring.

C Relaxing.

D Interesting.

解析：选C。C推理判断题。根据最后一段最后一句“A 28-year-old woman said she and her friends tried the heart-shaped track a few days ago and did not feel very tired.”可知，一名28岁的女子和朋友一起尝试了“心越线”，也没有感受到特别累，因此她觉得该路线还蛮轻松的。故选C。

5.Where can we read the passage?

A In a newspaper.

B In an instruction.

C In a notebook.

D In a comic book.

解析：选A。A推理判断题。通读全文可知，本文报道了长沙岳麓山一路牌引关注，是一则新闻，因此我们可以在报纸上读到本文。故选A。