一种爱国情怀和为国家、为民族不惜牺牲一切的精神，充分展现了当代中国军人的责任和担当，充满正能量。

　　21．What did the hero of Wolf Warrior Ⅱ once do?

　　A．He was a worker.　　　　　 B．He was a soldier.

　　C．He was a coach. D．He was a president.

　　解析：选B　细节理解题。根据第二段中的"The movie ... tells the story of a former Chinese People's Liberation Army soldier protecting ... zone."可知，《战狼Ⅱ》中的英雄曾经是一名军人。故选择B项。

　　22．Why is Wolf Warrior Ⅱ so popular?

　　A．Because the movie is concerned with the love of our country.

　　B．Because Wu Jing played a key role and directed the film.

　　C．Because it is the first film concerning an African war zone.

　　D．Because the plot gives audiences a deep impression.

　　解析：选A　细节理解题。根据第三段中的"The patriotic(爱国的) emotions have proven popular with audiences."可知，这部影片很受欢迎的原因与爱国有关。故选A项。

　　23．Which word can best describe Yuan Renguo's attitude towards the movie when he wrote the letter?

　　A．Favorable. B．Astonished.

　　C．Relieved. D．Uncaring.

　　解析：选A　推理判断题。根据第四段中的"The movie has hit a new record and become a phenomenon"与"... has once more allowed this famous Chinese brand to impress the world"和第五段，再结合文章标题可知，他写信时是非常赞许这部电影的。故选A项。

　　B

　　Nobody likes feeling lonely, and isolation (孤立) isn't only a psychological problem. Loneliness increases a person's risk of death by 26 percent, an effect comparable to the health risks posed by obesity.

　　So some researchers are investigating what it is, exactly, that makes lonely people stay lonely. One long­held theory has been that people become socially isolated because of their poor social skills - as they spend more time alone, the few skills they do have start to fail from lack of use. But new research suggests that this is a fundamental misunderstanding of the socially isolated. It's just that when they're in situations where they need those skills the most, they choke.

Professor Megan L. Knowles and her team tested the social skills of 86 undergraduates, showing them 24 faces on a computer screen and asking them to name the basic human emotion each face was showing：anger, fear, happiness, or sadness. In the end, the lonelier