1 . For many, Labor Day weekend signals the end of summer and an opportunity to host a socially-distanced barbecue (an outdoor meal). But this national holiday—celebrated every year in the United States and Canada on the first Monday in September—has revolutionary (革命性的) origins.

By the late 19th century, the Industrial Revolution had made working life miserable for people around the world. In many places, workers toiled for at least 12 hours a day six days a week in mines, factories, railroads, and mills. This holiday actually originated in the US on May 1, 1866, in what came to be known as the Haymarket Riot, workers flooded Chicago streets to demand an eight-hour workday.

It would take another conflict in the American Midwest to make Labor Day a national holiday. On May 11, 1894, workers at the Pullman Palace Car Company, a railroad car manufacturer near Chicago, went on strike to protest their low wages and 16-hour workdays. In August 1893, James Kyle introduced federal legislation (立法) to make Labor Day a public holiday, but for ten months the legislation was put on hold. To quiet the strikers and their supporters, the Senate quickly passed the bill on June 22. The bill passed the House four days later and President Grover Cleveland signed it into law on June 28, 1894.

The holiday is more information May Day labor celebrations. Many observers relax at home or head to outdoor recreational activities, such as boating, barbecues, and camping. It may also be marked with fireworks shows and other events. Labor Day has also become associated with retail sales, as many shop owners try to take advantage of the customers’ day off. It is one of the largest sales events of the year. meaning retail employees actually have to work more on this day. Parades are the most common model of celebration, which often feature processions of labor groups.

1. What do we know about the workers in the late 19th century?

A．They were paid well.	B．They had long workdays.
C．They often had a barbecue.	D．Their contributions were recognized.

2. Which can replace the underlined words “put on hold” in paragraph 3?

A．Put off.

B．Introduced.

C．Got through.

D．Protected.

3. When did Labor Day become an official holiday throughout America?

A．On May 1, 1886.

B．On August 22, 1893.

C．On May 11, 1894.

D．On June 28, 1894.

4. What’s the last paragraph mainly about?

A．The origins of Labor Day.	B．The labor groups achievements.
C．The ways to celebrate Labor Day.	D．The official activities on Labor Day.