要点：1).剪纸艺术起源于6世纪或甚至更早；

2).剪纸过去是为了宗教祭祀，现在是为了烘托节日气氛；

3).中国剪纸已发展成一种艺术。

注意：1).词数l00左右。

2).可以适当增加细节，以使行文连贯。

3).开头和结尾已经为你写好。

参考词汇：剪纸paper cutting

Dear friends,

    I'm Li Hua.I feel honored to be your Chinese teacher this summer.

    That's it.Now let's begin our class.

1)你的梦想是什么；

2)你为何有此梦想；

3)你如何实现梦想。

注意：1)词数不少于50；

2)开头和结尾已给出，不计入总词数。

Hello, everybody!

Thank you.

What comes first: the optimism or the good health?

    Optimism, defined as the general expectation that the future will be favorable, could provide ways to improve health, some researchers believe. But scientists remain unsure if optimism goes ahead of health improvements, or vice versa.

    A recent study suggests that most people can't help but to think optimistically. This study was conducted by Ed O'Brien, a social psychologist at the University of Michigan in Ann Arbor. The findings suggest that people have a natural tendency to think positively about their future.

    Participants were asked to create a list of imaginary personal experiences that would make them happy or unhappy over the course of the next year. They then ranked how difficult it was to plan that list and how happy they believed they would be in the future overall. The easier it was for people to think of positive future experiences, the happier they imagined they would be. However, there was no relationship between easily developing negative future experiences and expecting to be unhappy as a result.

    O'Brien concluded that people seem to discount the possibility that future negative events will make them happy overall, suggesting that optimism might come more naturally. "We're not as used to thinking about the future in terms of things that are going to go wrong." O'Brien's study is one of many to find that people are consistently optimistic about their future, predicting pleasant experiences and discounting unpleasant ones. If optimism may lead to better health and people generally tend to think optimistically, what does this mean for the connection between mental and physical health? "If we can make sure that optimism comes before healthy states, we might be able to involve and improve people's optimism," Boehm explained. However, it's difficult to determine what comes first: the optimism or the good health.

⒈介绍垃圾污染的现状；

⒉提出减少垃圾污染的措施(不少于两点)；

⒊谈谈你对减少垃圾污染的看法。

注意：

⒈词数不少于100；

⒉可以适当增加细节，以使行文连贯；

How can we reduce garbage pollution

    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.

    Many of us do the revision work alone by shutting ourselves in a room with a book. Shutting yourself away can make you learn to hate studying. This leads to a situation where instead of being able to pay attention to your work, you are troubled by how unfair it is that you must study. When you hate your work, it's very difficult to make yourself like and do the work. This can be part of a vicious cycle(恶性循环) that you are caught in ineffective revision. Your poor progress makes you dislike the revision work more.

    Just being around other people really helps fight against feelings of loneliness and, thankfully, it's perfectly possible to work with a partner. We just need to learn how to deal with distractions(使人分心的事物).

    It's not necessary to avoid all people around, just people having nothing to do. Studying in the same room with someone who is ironing(熨烫衣服) or working out is perfectly possible. People who are bored and have nothing to do, however, are terrible to work around. They often try to keep others in conversation.

    It's also a good idea to avoid the company(陪伴) of people involved in activities that you like doing very much. Working while sitting next to someone playing video games is much more likely to end with a new high score in the game than a few hours of high-quality revision.

    If being around others means working in a noisy environment, a pair of headphones and some background music can keep out even noisy children.

    When you're studying for a big exam, it seems like your whole life is taken up with study. Friends and family can lessen feelings of isolation(孤独). And connecting with other people makes us happy, so it's important not to give that up and to make sure that we take the time to be with other people.