For kids and many adults,a San Diego vacation means theme parks and other attractions.Before heading to a park,call or check its website for updated hours of operation; many parks have seasonal or holiday hours.Ticket prices listed here are for general admission（入场费）,single-day use only.

Sea World San Diego

    A 6-minute ride called Journey to Atlantis,which is to open in late May,tells the legend of the island nation. After the ride of Greek fishing boats,folks can visit a new exhibit of dolphins,which have not been on display at the park since 1998.

    DETAILS: General admission is $46.95 for adults,$37.95 for children aged 3-9,free for children 2 and younger. 1-800-380-3203 or www.seaworld.com.

San Diego Zoo

    There's not much in the way of new attractions.The zoo has a new panda cub（幼兽）,Mei Sheng.Nighttime Zoo, a program popular with families,starts June 26.

    DETAILS: General admission is $21 for adults,$14 for children aged 3-11,free for children 2 and younger. 1-619-234-3153 or www.Sandiegozoo.com

Maritime（海的）Museum of San Diego

    The HMS Surprise,the 18th-century British warship featured in the film Master and Commander,is on exhibit through Nov.30.

    DETAILS: The ship is available for tours from 9 am to 8 pm daily.Admission is $8 for adults,$6 for seniors and children aged 13-17,$5 for kids aged 6-12,and free for kids 5 and younger.1-619-234-9153 or www.sdmaritime.org.

Old Town Trolley Tours

    Visiting relatives or friends in San Diego? They can get a hometown pass and ride for free with your paid admission.

    DETAILS: The main ticket booth（售票亭）is in Old Town at 4010 Twiggs St.Hours are from 9 am to 5 pm, daily $25.www.historictours.com.

Father's Day

    The United States is one of the few countries in the world that has an official day on which fathers are honored by their children. On the third Sunday in June, fathers all across the United States are given presents, treated to dinner or otherwise made to feel special.

    However, the idea for creating a day for children to honor their fathers began in Spokane, Washington. A woman by the name of Sonora Smart Dodd thought of the idea for Father's Day while listening to a Mother's Day sermon in 1909. Having been raised by her father, Henry Jackson Smart, after her mother died, Sonora wanted her father to know how special he was to her. It was her father that made all the parental sacrifices and was, in the eyes of his daughter, a selfless and loving man. Sonora's father was born in June, so she chose to hold the first Father's Day celebration in Spikane, Washington on the 19th of June, 1910.

    In 1924 President Calvin Coolidge declared the third Sunday in June as Father's Day. Roses are the Father's Day flowers: red to be worn for a living father and white if the father has died.

    When children can't visit their fathers or take them out to dinner, they send a greeting card. Traditionally, fathers prefer greeting cards that are not too sentimental. Most greeting cards are too special so fathers laugh when they open them. Some give heartfelt thanks for being there whenever the child needed Dad.

    A recent study, while showing a generally positive attitude toward science, also suggests a widespread worry that it may be "running out of control". This idea is dangerous.

    Science can be a force for evil as well as for good. Its applications can be channeled either way, depending on our decisions. The decisions we make, personally or collectively, will determine the outcomes of science. But here is a real danger. Science is advancing so fast and is so strongly influenced by businesses that we are likely to believe whatever decisions we come to will make little difference. And, rather than fighting for the best possible policies, we may step back and do nothing.

    Some people go even further. They say that despite the moral and legal objections, whatever is scientifically possible will be done-somewhere, sometime. They believe that science will get out of control in the end. This belief is dangerous too, because it fuels a sense of hopelessness and discourages then from making efforts to build a safer world.

    In our interconnected world, the lack of agreement in and out of the world of science can lead to the failure to control the use of science. Without a common understanding, the challenges of "controlling" science in this century will be really tough. Take human cloning for example. Despite the general agreement among scientists on its possible huge impact on traditional moral values, some countries still go ahead with the research and development of its related techniques. The outcomes are hard to predict.

    Therefore, discussions on how science is applied should be extended far beyond scientific societies. Only through the untied efforts of people with hope, can we be fully safe against the misuse of science and can science best serve mankind in the future.

    Almost all researches in sleep explain that nightmares are a reaction to negative experiences that happen during waking hours. However, some of them believe that nightmares do have some real benefits. One 2017 study, for example, found that frequent nightmare sufferers rated themselves as more empathetic (共鸣的). They also displayed more of a tendency to unconsciously mirror other people through things like yawning. People who have constant nightmares also tend to think further outside the box on psychoanalysis tasks. Some other researches have found support for the idea that nightmares might be linked to creativity.

    People seeking cure for nightmares were not necessarily more fearful or anxious, but rather had a general sensitivity to all emotional experience. Sensitivity is the driving force behind intense dreams. Heightened sensitivity to threats or fear during the day results in had dreams and nightmares, whereas heightened passion or excitement may result in more intense positive dream. And both these forms of dreams may feed back into waking life, perhaps increasing suffering after nightmares, or promoting social bonds and empathy after positive dreams.

    The effects go further still. This sensitivity overflows over into perceptions and thoughts: people who have a lot of nightmares experience a dreamlike quality to their waking thoughts. And this kind of thinking seems to give them a creative edge. For instance, studies show that such people tend to have greater creative talent and artistic express. And people who often have nightmares also tend to have more positive dreams than the average person.

    The evidence points towards the idea that, rather than disturbing normal activity, people who are unfortunate in having a lot of nightmares also have a dreaming life that is at least as creative, positive and vivid as it can be distressing and terrifying. What's more, this imaginative richness is unlikely to be limited to sleep, but also is filled with waking thought and daydreams. Even after people wake up and shake off the nightmare, in other words, a mark of it stays behind, possessing them throughout the day.

    Tiny Countries You Never knew Existed

    Sao Tome and Principe

    Sao Tome and Principe off Africa's west coast is only 372 square miles, but it has Impressive, undamaged nature, rich in biodiverse species. The amazing needle-like volcanic peak Pico Cao Grande rises 1,000 feet into the air. The islands are home to only around 200,000 people today.

    San Marino

    Only 23 square miles with a population of just 34,000, the little-known country of San Marino, surrounded by Italy, is the world's fifth smallest country. With the UNESCO World Heritage Site of Mount Titano, the country is said to be the oldest republic in the world.

    Dominica

    Dominica covers only 290 square miles, with some of the best diving in the Caribbean, including the UNESCO World Heritage Site of volcanic Morme Trois Pitons National Park. In Dominica, you'll see rainforests, waterfalls, and coastal views. The island is also home to the only remaining population of the Kalinago, who are part of the island's 74, 900 inhabitants.

    Kiribati

    This Pacific island country 33 coral islands is 313 square-miles, but it's the only country in the world to fall into all four hemispheres (半球). The country's 109, 000 residents live in only 21 of the islands see this tropical paradise before it is no longer--rising seas are threatening to swallow the country whole.

The theatre in Shakespeare's time was much different than it is today. Authors wrote plays for the masses, especially those who couldn't read or write.

The theatre changed a lot during Shakespeare's lifetime. The authorities didn't like it and didn't allow acting in the city itself: They thought it had a bad influence on people and kept them from going to church. Queen Elizabeth, on the other hand, loved acting and helped the theatre become popular.

The theatre in Shakespeare's time was full of life. People did not sit all the time and it was not quiet during the performance. The audience could walk around, eat and drink during the play.

Theaters were open arenas or playhouses that had room for up to three thousand people. There was almost no scenery because the dialogue was the most important part of the play. Colourful and well­designed costumes were very important and told the people about the status of a character. Women never performed in plays, 80 young boys played female characters. The performances took place in the afternoon because it was too dark at night.

There was no stage crew as there is today. Actors had do everything themselves—from making costumes to setting the stage. Plays were organized by acting companies. They performed about 6 different plays each week because they needed money to survive. They had almost no time to rehearse (排练).

The companies in Shakespeare's time had a rank system. The company belonged to shareholders and managers. They were responsible for everything and got most of the money when the company was successful. Sometimes they even owned their own buildings. Actors worked for the managers arid after some time became a permanent member of the company. Apprentices (学徒) were young boys and were allowed to act in unimportant role. They also played females characters in play.