2 . 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.

3 . Types of Maps

Different types of maps have different uses. Tourist maps, for example, have signs to show places of interest in an area. When tourists read these maps, it is easy for them to find where to go and what to see in a place and it is easy for them to go and find their ways to these places.

Road maps show large areas so that people can plan long journeys. Different types of roads are given different numbers. For example, if you want to go to Wood Green, you just follow No. 621 Road and keep looking at the road signs.

Distribution maps use colors or signs to show facts about an area. For example, where different languages are spoken, how many people live in an area, how cold and hot some places are, or whether a place is short of water.

Some maps, such as railway maps, use straight lines to show everything. This is easy for people to read. Trains are fast. People don’t have to think about small places they go past. They just need to know the two ends of their trips.

4 . My grandfather was a rigid perfectionist. Everything had to be orderly, precise and punctual. I was frightened of him until the day he died. Growing up, my mother desperately wanted to please him. She probably thought he might leave if she didn’t.

In fact, I now think the fear of being left alone, abandoned, was a current throughout much of her life. A few years into my father suffering from Alzheimer, my mother’s voice on the phone sounded so upset that I had to tell her, “Just be with yourself for a little while.”

“No, I can’t do that. I don’t want to do that,” she said abruptly, closing the door on the subject. A while after my father died, she told me that she kept the television on all the time because it made her feel less lonely. “It makes the house seem more lived in,” she said. I had given in to my annoyance and either turned the volume down or turned it off. But after she told me that it filled in some of the loneliness, I never reached for the remote again.

We have had a long journey together, she and I. Over a half-century of memories, now that the journey has ended, I have a choice which ones to study which ones to turn over in my hands and dust off.

I choose to look at the ones that ache with a sweet truth not told often enough: there was love between us. It was just hard to find sometimes. I choose to remember her face on that winter day in Manhattan, when I came to her with a broken heart. I choose to remember walking on the shore with her in summers when we rented a beach house; somehow the sea always transformed us. And how she looked on my wedding day when she handed me a bracelet that had belonged to my grandmother. “Something old,” she said.

6 . It might seem like something from a science fiction movie, but scientists today are working on ways to combine certain kinds of bacteria with tiny robots. Scientists want to use these creations to improve the way we give medical treatment. They claim that drug therapy (疗法), disease diagnosis, and even surgery could be greatly aided by the use of nanobiotechnology. Nano-means “tiny”, and bio-means “life”. This tiny technology will use living organisms in combination with electronics.

Electronics makers already use tiny robots to build complex but very tiny circuits. Medical scientists want to use these robots to repair patients’ damaged organs or to direct medicines to affect specific cells. For example, tiny robots could be engineered to deliver chemotherapy (化疗) directly to cancer instead of to the entire body.

Existing electronics are the right size, but they lack practical use. Robots that can be built small enough to enter a person’s cells would be too tiny to move on their own. Therefore, scientists want to use tiny organisms such as bacteria to act as vehicles for the robots. The bacteria will be “driven” through the bloodstream by magnetic pulses (磁脉冲). Once the bacteria are in the correct locations, the robots will be able to do their jobs. In theory, these robots will cause less damage to the body than traditional methods of delivering medicines or performing surgeries.

Nanobiotechnology has yet to be put into practice, but many people already have concerns about its use. Some people worry about the ethic (道德标准) involved with controlling live organisms—and the possible side effects for their human hosts.

7 . When someone is homeless or trying to recover from a natural disaster, they are in need of a lot of the basic life necessities that many of us take for granted (认为……是理所当然的). While people are often encouraged to donate canned goods, not everyone is thinking about things like shoes.

Of course, you can’t go looking for a new job or a home, if you have no shoes to walk in. One woman in Hays, Kansas took this into consideration, and found a way to help hundreds of people.

Payless stores were going out of business, and shoes were selling for as little as $1 per pair, so a woman named Addy Tritt bought out all the remaining shoes at the Hays Payless store—more than 200 pairs—and donated them to flood victims (灾民) in Nebrsska.

Those shoes were then included in a flood relief shipment taken to farmers in Nebraska by Fort Hays State University. Tritt, who recently graduated from FHSU’s human resources program, wanted to “pay it forward”.

“I have been so lucky,” she said. “There have been so many great people in my life who have inspired me. I see so many terrible things in the news. So many people have helped me when I was down. They influenced me so much that I want to help if I can.”

Tritt has a history of charitable (慈善发) acts. She has donated more than 60 bags of school supplies to Hays students, and organized a baby clothes drive and two supply drives for the animal shelter.

“I really feel I have been directed and guided to help people,” she said. “If you can do something for someone else, you need to find a way even if it is a pair of shoes.”

10 . The Happy Man

The happy man lives objectively, and has free love and wide interests, through which he secures his happiness. To be the receivers of love is a vital cause of happiness, but the man who demands love is not the man to whom it is given.     1     But it is useless to attempt to give love as a calculation, for it is not sincere and is not felt.

What then can a man do who is unhappy because he is enclosed in self? If he is to get out of the vicious (恶性的) circle of unhappiness, it must be by true interests. But before that, he should analyze his trouble first.     2     If fear is his trouble, let him practice exercises designed to give courage.

Admit to himself every day at least one painful truth.     3     Exercises of this sort will enable him to admit facts and will free him from the fear to a large extent.

    4     Do not say to yourself in advance, “I should be happy if I could become interested in stamp-collecting,” and thus set to work to collect stamps, for it may well happen that you will altogether fail to find stamp-collecting interesting. You may be pretty sure that true objective interests will grow up as soon as you have learnt not to be self-centered.

All unhappiness depends upon lack of integration (融合). There is disintegration within the self,consciously and unconsciously or between the self and society.     5     Such a man feels himself a citizen of the universe, enjoying what it affords, untroubled by the death because he feels not separate from those who will come after him.