1）春节的时间;

2）庆祝春节的方式;

3）春节的习俗。

注意：

1）词数100左右

2）可以适当增加细节，以使行文连贯

要点提示：

1)你对英语重要性的认识；

2)你学习英语的方法；

3)你对学习英语的建议。

注意：1) 词数150左右（开头和结尾已给出，但不计入总词数）；

2)可适当增加细节，以使行文连贯。

    Hello, everyone. It is my honor to be here to talk about my experience of learning English.

    Thank you!

The Possible Health Dangers of Air-conditioners

Although many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they pose many potential health hazards. Much research has looked at how the movement of air inside a closed environment—such as an office building—can spread disease or expose people in the building to harmful chemicals.

    One of the more widely publicized dangers is that of Legionnaire's disease, which was first recognized in the 1970s. This was found to have affected people in buildings with air-conditioning systems in which warm air pumped out of the system' cooling towers was somehow sucked back into the air intake, in most cases due to poor design. The warm air, filled with bacteria, was combined with cooled, conditioned air and was then circulated around various parts of the building. Studies showed that even people outside such buildings were at risk if they walked past air exhaust pipes.

    Large air-conditioning systems add water to the air they circulate by means of humidifiers. In older systems, the water used for this process is kept in special reservoirs, the bottoms of which provide breeding grounds for bacteria which can find their way into the ventilation system. The risk to human health from this situation has been highlighted by the fact that the immune systems of approximately half of workers in air-conditioned office buildings have developed the ability to fight off the organisms found at the bottom of system reservoirs. But chemicals called “biocides” are added to reservoirs to make them germ-free, and they are dangerous in their own right in sufficient quantities, as they often contain compounds strongly linked to cancers.

    Finally, it should be pointed out that the artificial climatic environment created by air-conditioners can also affect us. In a natural environment, whether indoor or outdoor, there are small variations in temperature and humidity. Indeed, the human body has long been accustomed to these normal changes. In an air-conditioned living or working environment, however, body temperatures remain well under 37℃, our normal temperature. This leads to a weakened immune system and thus greater exposure to diseases such as colds and flu.

    Over the past few years, there has been a big increase in the number of people sharing information online. In this article we will learn about some positive factors for people to share information online.

    We often share information with our friends in the office or at home to educate, entertain or pleasantly surprise them. In this way we can connect with others. This is also true while sharing information online. If you look at the Facebook wall posts of your friends, you will realize that most of their updates are usually famous quotes, entertaining videos, inspirational images, funny jokes, etc. 94% of those who responded to a survey by the New York Times said they put a lot of thought into how the content they are sharing will be beneficial to others.

    A lot of people share information online to represent their true self to the outside world. Some people, especially those who are shy and not comfortable talking about their areas of interest in the presence of others, find it extremely convenient to share that information online with like-minded individuals.

    78% of the respondents in the study of The New York Times said they shared information online because it helps them develop better relationships. Today, a lot of people do not have the time to meet each other in person and the Internet has become a great substitute. A lot of people now "meet" each other online, rather than in conventional places like restaurants and pubs.

    Lastly, when we share our thoughts online, we are actively engaging with the vast community of people who are a part of the World Wide Web. Sharing information will make a difference to the viewpoint of others, or add to their understanding about the world.

    Sadness and depression?

    Sadness is normal human emotion that everyone experiences at some time. A number of events can leave people feeling sad or unhappy, such as the loss or absence of a loved one, divorce, loss of job or income, financial trouble, issues at home, or social anxiety.

    Failing an exam, not getting a job, or other disappointing events can also trigger sadness.

    However, a person who is sad can usually find some relief from crying, venting, or talking out frustrations. This is because sadness is more likely to be linked to a specific trigger.

    Sadness usually passes with time. If it does not pass, or if the person become unable to function normally, this could be a sign of depression. If symptoms worsen or last longer than 2 weeks, the person should talk to their doctor.

    Depression is a mental disorder that affects every part of a person's feelings and perception. It affects behaviors and attitudes and can affect people of any gender or age.

    In 2015 around 16.1 million people aged 18 years or above in the U. S. had experienced at least one major depressive episode in the last year. This represented 6.7 percent of all American adults. Symptoms include feelings of discouragement, sadness, hopelessness, a lack of motivation, and a loss of interest in activities that are normally enjoyable. In severe cases, the person may think about or attempt suicide.

    The person may no longer feel like spending time with family or friends. They may stop pursuing their hobbies and feel unable to go to work or school.

    Daily habits may change unexpectedly and without reason. A person with depression may find it difficult to continue doing the things they normally enjoy.

    If these feelings of doubt last more than 2 weeks, a health-care professional may diagnose the person with major depressive disorder (MDD).

    Unlike sadness, depression can leave a person struggling to express their feelings. If the person tries to release the stress, the overpowering feelings and negative thoughts can prevent them from building themselves up again.

These days, its not unusual to see middle-aged men collecting Star Wars action figures, office workers wearing Hello Kitty accessories, or celebrities like David Beckham playing with Lego bricks, it's becoming more and more common to see adult taking an interest in toys, comic books and the activities that are traditionally associated with children. This phenomenon has given rise to a new word: kidult.

What lies behind the phenomenon? One is about adults' nostalgia (怀旧)for the carefree days of childhood, and this is especially true with today's fast-paced, stressful lifestyles. Another is about a societal change in recent decades where people are starting families later. As a result, they have more time and money to spend on themselves. Some adults could only window-shop for their dream toys when they were kids, but now they can afford that radio-controlled car or high-priced doll they have always wanted.

Society traditionally disapproves of adults who refuse to put aside childhood interests, viewing the refusal as a sign of social immaturity (不成熟) and irresponsibility. Those who agree with this view sometimes claim that kidults are suffering from the pop-psychology concept known as Peter Pan Syndrome, an anomaly (异常) that people remain emotionally at the level of teenagers.

From the standpoint of kidults, though, this phenomenon is seen as nothing but harmless fun. Kidults insist that having youthful interests keeps them young, happy and creative, and their refusal to conform to society's acccptable tastes shows independent thinking. Besides, they argue that being part of the social trend of delayed adulthood is not purely a personal choice. The real causes include expensive housing, increased educational requirements for employment and poor work opportunities.