Antonio López de Santa Anna，a former president of Mexico，was living in New York in the late 1860s. While he was there，he met with Thomas Adams，an inventor. Santa Anna shared with Adams his idea for an invention—a new process，really，for making rubber（橡胶） products such as tires（轮胎）. 

▲Santa Anna thought it would be possible to blend the rubber with chicle（糖胶树胶），the milky juice of a tropical（热带的） tree. That would make rubber products much cheaper to produce. Adams told Santa Anna that he was willing to try. Later，Santa Anna prepared one ton of chicle to be shipped to Adams from Mexico. 

Adams worked for about a year，trying different blends of rubber and chicle. None of them were successful. The inventor still had lots of chicle left over and wondered what to do with it. Then he remembered Santa Anna's stories of people chewing chicle in Mexico. So Adams made a small number of chewing gum（口香糖），packaged it，and sold it in local stores. The gum was much tastier than other American gum，which was made from wax（蜡） or tree sap（汁）. 

Although Adams's original idea was a failure, chewing gum was a success. In 1871，he invented a machine to produce gum so he wouldn't have to make it by hand. Adams enjoyed success for the rest of his life，and people have enjoyed all kinds of tasty gum for years. 

Dong Yuhui, a 30-year-old livestreaming host for East Buy(东方甄选), found himself in an online controversy(争议) that began on Dec. 5. 

East Buy, a subsidiary of the New Oriental education, said that many of the things Dong said in his livestreams were written by the East Buy team, not by himself. The then-CEO, Sun Dongxu, criticized Dong and the team, which made Dong's fans upset. 

Surprisingly, this controversy made Dong even more popular. In just one week, his Douyin followers increased by over 3 million, while East Buy lost more than 2 million followers. Sun was no longer the CEO, and Dong became vice president of New Oriental's cultural and tourism business.

Despite his rising fame, Dong remains humble. " I am not good-looking or tall;I don't know why I have so many supporters, "he said. 

However, Xu Hanze, an associate professor(副教授) at Nanjing University of Aeronautics and Astronauts, believes that Dong got more attention because of his talent and intelligence, thanks to his habit of reading extensively. 

In the age of consumerism, Dong does not trick consumers into buying unnecessary products, but encourages them to be rational(理智的) when shopping online. He also puts more effort into educational activities and events to help farmers. 

He believes that people should not wish to be the next Dong Yuhui. " I want to tell other young livestreamers that they do not need to be me, as each story is moving in its own way. "

He went on to say that people are not products made on manufacturing lines, and that diversitv(不同) what makes people special. 

When the other models appeared on the stage, the audience cheered and clapped. Then it was Niu's turn. The audience suddenly became . However, after four or five seconds, Niu heard someone next to the stage say in admiration, "So cool!"

Niu Yu, 24, became a(n) star at Shanghai Fashion Week for her confidence, even though she was wearing a prosthetic leg. When Niu was only 11, she lost her right leg during the Wenchuan Earthquake.

Niu has won lots of praise. This gives those who have prejudice(偏见)against the disabled a hit on the nose. "I by something they said. They said the traditional view was that sports were for people with legs, but sports should be a kind of spirit. Even though I have lost a leg, I still deeply love sports and will do so forever, " Niu said. Actually, Niu first drew the public's attention when she a marathon — a 42-kilometer race in 2018, which was held in Wenchuan to mark the anniversary （周年纪念）of the earthquake.

Now, Niu works as a photographer and has more than 850,000 on social platforms, such as Douyin. "I feel I have a social responsibility to bridge the disabled and the public. Showing my life to the public can allow them to understand our group and can also tell other disabled people that our society is more tolerant（宽容）than they imagined, " she explained.

To many young Chinese people, Premier Zhou Enlai is known as a key founder of the New China. But f people know he once wrote a martial arts novel called Jin Guo Ying Xiong.

Recently, a Sina Weibo user m this novel written by Zhou more than a century ago. Many young people showed a strong i in it and their admiration for the early pioneers of China. Another user posted the first page of the novel which Zhou wrote at the a of 16. It was published under Zhou's pseudonym(笔名) "Fei Fei" in a magazine beginning in October, 1914. However, the novel was never completed, but it can be found a. The Early Works of Zhou Enlai were published by the Central Party Literature Press in 1998.

A many young people expressed the regret that Zhou did not go on with the novel, they said he played a more important role in China's history. One wrote "The novel was stopped but Premier Zhou went on to s the Chinese nation out of danger!" Another added, "He gave up a novel, but he wrote a history of m China." A 29-year-old computer engineer said, "The pioneers of China are spiritual leaders for me. Remembering them helped me build up the r values. When I face problems in life, I am always reminded not to f the lives of those pioneers. The difficulties I face now are nothing compared with what they experienced."

画线部分为多余的词：把该词写在该行右边的横线上并画上斜线（\）。画线部分为错词：在该行右边横线上写出一个正确的词。有漏字符号（^）处缺一个词：在该行右边横线上写出所缺的词。

John is a 13-years-old schoolboy. He studies very hard at school and gets good grades in all his subject. But he doesn't like sports. Six months ago, he did not feel good. He often had colds and felt sick to his stomach. His parents took him to see a doctor. After asking him some questions and giving him a careful examination, the doctor said which it was not serious and told John's parents ^ to worry about it. Then the doctor told John to take more exercise and stop eating fast food. From then on, John went to school by a bike every day instead of taking the bus. At first, he felt tire and weak. But two weeks later, he got fitter and started to enjoy it. Since he started ride a bike, he has not had a cold. To his surprise, he has not had a stomachache since he stoped eating fast food.