Gregg's dream was to travel around the Americas(美洲). He got the idea after he finished a long bike ride. Gregg's friend, Brooks, also liked riding a bike. The two friends talked and made a plan，they would travel from Alaska to Argentina by bike.

    To pay for the trip, Gregg and Brooks worked to save money for a long time. When they were on the road, they often camped outdoors and ate cheaply. In many places, local people opened their doors to the two friends and gave them food.

    On their way, there were deserts, rainforests and mountains. They visited modern cities and ancient ruins. And they made many friends from all over the world.

    Two years later, Gregg finally reached Ushuaia, Argentina in May 2007. (Near Guatemala, Brooks had to go back and Gregg continued without him.)

They both learned a lot about traveling. Here are some of Gregg's suggestions.

Travel light. You shouldn't carry many things with you.

    Be flexible(灵活的)• Don't plan everything. Then you'll be more relaxed and pleased. Be polite. One traveler told Gregg, "Nobody wants to cheat a nice man." It's true.

    We go to school every day to become better people. How can we start to make big changes in our lives? Perhaps we can get tips from former US First Lady Michelle Obama. During a visit to China from March 20 to 26 in 2015, Obama shared her views on education and youth empowerment with students.

    The first lady encouraged Chinese students to aim high and get a good education. At Chengdu No 7 High School, she told students that having humble roots doesn't matter as long as you have perseverance (毅力). Obama said her family was not rich. Like many Chinese students, her parents had big dreams for her. She felt the weight of her parents' sacrifices (牺牲) on her shoulders and worked hard to make them proud. Persevering was not easy, though. Sometimes she had to wake up at 4:30 am and study late into the night. "But whenever I got tired or discouraged… I would remember something my mother always told me. She said: A good education is something that no one can take away from you.'"

    Mrs Obama also encouraged Chinese students to study abroad to broaden their horizons (开阔视野) in a speech at Peking University. "As the Chinese saying goes: It is better to travel 10,000 miles than to read 10,000 books," she said. It's not enough to get good grades in school. It's also important to have real experience with languages, cultures and societies that are different from your own, she noted. Studying overseas can also benefit future international relations. It can help young people from different countries work together to deal with shared problems like climate change, Obama said.

①For the past ten years，my dad and I have attended the same school—he as an administrator （行政人员） and I as a student. Our relationship，has been totally unpredictable. 

②When I was younger，all that my dad said was doctrine （信条） and I copied anything he did. We played games together（依靠） my dad taking me to school，running into him regularly during the day and riding home with him every afternoon. 

③However，as I grew older，we were not as close as we used to be. He wasn't cool any more. He wore his socks too high（尴尬）. 

④For example，in my seventh grade，my dad came to our New Year party. He dressed up as Donald Duck，singing silly songs. Just kill me!I wanted to run away. 

⑤Another thing was during my 10th﹣grade physics project. The task was to build a wood bridge with the best strength﹣to﹣weight ratio（比率）. All the students and physics teachers took part in it. So did my dad，the only administrator! Embarrassed，I ran away. However，later when I learned from my friends that my dad got the first prize and won everyone's admiration，he still influenced me. 

⑥I feel lucky to have such an unusual father. The relationship I have developed with my dad over the years has enabled me to look back and see how I've grown. 

Zhi Nong was born in a small town in Yunnan Province. When he was young, he moved to Kunming with his mother. Feeling like a caged (笼中的) bird in a big city, he was bored with the busy and noisy city life and looked forward to nature. 

His chance soon came. In 1983, he helped shoot (拍摄) a documentary about birds. That experience led him to learn photography and take photos of flying birds. 

In the 1980s, the Internet was not that popular in China and cameras were expensive. He managed to borrow a camera and threw himself into studying how to use it. During that time, the library became his favorite place where he first read some magazines about nature. It opened a door for him to connect with nature. 

In 1992, a research program was set up to protect a type of unusual monkeys which only live in China. Usually, the home of these monkeys has half-a-year-long winters. It created great challenges for Zhi Nong's work, but he never drew back. "I didn't see the monkeys in the wild until I went into the mountains the third time," said Zhi Nong. He went into the snow mountains six times just to get valuable photographs of monkeys. 

Three years later, his works won international prizes. People around the world began to pay attention to the protection of wild animals in China. And he is the first Chinese winner of the world Wildlife Photographer of the Year. 

In order to call up tons of people to protect wildlife with cameras, he started "China Wildlife Photography Training. Camp". He hopes that more young people will join in for the nature protection. 

Mrs Ball had a son. His name was Mick. She1 him very much and as he was not a2 child,she was always3 that he might be ill.4 she used to take him to see the best5 in the town four times a year to be looked over.  During one of these visits, the doctor gave Mick all kinds of tests and then said to him," Have you had any6 with your nose or ears recently ?" Mick7 for a second and then answered . " Yes,I8 . " Mrs Ball was very9 . "But I'm sure you have never told me that, Mick !" She said worriedly. " Oh, really ?" said the doctor10 " And what trouble have you with your nose and ears, my boy ?" "Well," answered Mick, "I always have trouble with them when I'm taking my sweater off, because the collar (衣领)is very tight（紧的）. " 

 The Palace Museum, a widely visited cultural landmark in Beijing, announced new visiting rules on Thursday. These rules include a ban(禁令) on"interviews" and"commercial(商业的) photography". Without the museum' s permission, activities such as performances, on-site surveys and religious events are not allowed. The new rules will come into effect on June 30. Those who seriously break the rules will be listed as"uncivilized tourists".

 Fang Qiongqiong, a cultural sociologist in Shanghai, said these rules were made to prevent chaos(混乱) and improper behavior at historical sites like the Palace Muse um. She added that balancing the social and cultural role was a difficult task.

 Efforts to stop improper behavior at popular tourist spots in China have increased. The Palace Museum' s ban on commercial photo shoots is a noticeable change. A staff member said commercial photo shoots were often seen at the museum and sometimes put off the closing time.

 The museum's new rules, especially the ban on photography and filming, have become a hot topic on Sina Weibo. Netizens have different opinions. Some wonder if online streaming will also be banned. One netizen supports the new rule, saying the age of short videos is excessive and people can do crazy things in public places to attract attention.

 According to data, the Palace Museum welcomed 30,000 visitors on January 1, one of its busiest days. Tags like"Palace Museum' s autumn view" and"snowy Palace Museum" are popular on The Little Red Book. Chen remarked that the new ban might reduce the museum's exposure(曝光) on the Internet.

 The notice also said day tickets would no longer be sold at the museum entrance. All visitors must make reservations in advance with their real names.