Labor Day is celebrated on May 1st every year. It is a public holiday to honor workers and their great contributions to the country. Labor Day in China comes from the international labor movement (运动) in the late 19th and early 20th centuries.

In 1890, the first Labor Day was celebrated after it was named International Workers’ Day in Paris. This date was to remember a protest (抗议) in Chicago in 1886. In China, May 1st was first celebrated as Labor Day in 1920. After the People’s Republic of China was founded in 1949, May 1st was officially made a national holiday.

1.1.Why do we celebrate Labor Day?

A To show respect to workers.

B To help people travel easily.

C To remember a Paris meeting.

D To enjoy a long holiday.

解析：选A。A细节理解题。文章首段明确指出，劳动节是“to honor workers and their great contributions”，第三段首句也说“It reminds us to respect workers”，由此可知，庆祝劳动节是为了表达对工人的尊重，故选A。B选项“帮助人们轻松旅行”和D选项“享受长假”只是人们假期活动的具体表现，并非设立节日的根本原因；C选项“纪念巴黎会议”是对第二段中“named International Workers’ Day in Paris”的误解，巴黎只是命名地点，并非庆祝劳动节的缘由。故选A。

2.2. Where was International Workers’ Day set up?

A In China.

B In Paris.

C In Chicago.

D In Britain.

解析：选B。B细节理解题。第二段第一句提到 “…after it was named International Workers’ Day in Paris”，说明国际工人日是在巴黎被正式命名的，故选B。A选项“在中国”与原文不符，文中指出中国是在1920年才开始庆祝；C选项“在芝加哥”是1886年抗议事件的发生地，并非命名地；D选项“在英国”文中完全没有提及。故选B。

3.3. When did Chinese people first celebrate May 1st as Labor Day?

A In 1886.

B In 1890.

C In 1920.

D In 1949.

解析：选C。C细节理解题。根据第二段的“In China, May 1st was first celebrated as Labor Day in 1920. ”可直接得出，中国人首次将五月一日作为劳动节庆祝是在1920年，故选C。A选项1886年是芝加哥抗议发生的年份；B选项1890年是国际上首次庆祝劳动节的年份；D选项1949年是新中国成立后劳动节被正式定为法定假日的时间，并非首次庆祝的年份，初次庆祝与正式确立为法定假日有时间上的区别。故选C。

4.4. What is the main idea of Paragraph 3?

A The history of international events.

B The daily life of common workers.

C Different popular ways of travelling.

D Values of Labor Day and holiday activities.

解析：选D。D主旨大意题。第三段首先总述“Labor Day is full of special meaning”，紧接着阐述其意义在于提醒我们尊重工人、珍视劳动和学习历史，最后具体描述了假期中人们的活动，如短途旅行、购物或休息。综合来看，该段主要讲的是劳动节的价值以及相关的假日活动，故选D。A选项“国际事件的历史”只涉及部分背景，且本段并未展开叙述；B选项“普通工人的日常生活”在文中完全没有提及；C选项“不同的流行旅行方式”仅对应段落末尾人们活动的一部分，无法概括“尊重工人、珍视劳动”等节日价值的内容，以偏概全。故选D。