1).表明愿意参加活动，并给出原因；

2).关闭手机后，你准备在本周六安排哪些活动；

3).表示会向同学们介绍此项活动。

注意：

1).词数100左右；

2).可以适当增加细节，以使行文连贯；

3).开头和结尾已为你写好，不计入总词数。

Dear Sir/Madam,

    I am pleased to learn about your appeal to spend a Saturday without using smart phones.

Yours,

Li Hua

1） 介绍老师的外貌、性格特征，上课特点，说明你为什么喜欢他或她。

2） 词数：100个单词左右

3）注意不要出现老师的真实姓名。

注意：①词数100左右；世园会 World Horticultural Exposition。②可以适增加细节,以使行文连贯。

Dear Jim,

Yours sincerely,

Li Hua

Unfair Comparisons

    Thanks to social media, the distance between friends is smaller than ever. But does that make us happier? Not necessarily. A recent study has found spending too much time comparing your life with the seemingly perfect lives of your friends on social media can result in depressive symptoms.

We've all done it —- browsing through our WeChat friends' updates while feeling that green-eyed monster holding its head in our minds: Are their homes bigger and more tasteful? Are their vacations more expensive and exciting? Are their careers more successful and rewarding?

    Comparison is the thief of joy. The more time you spend on social media, the more likely it is for you to feel depressive symptoms, according to a new study out of University of Houston. The study, led by Mai-Ly Steers, examines the potential impact online social comparison can have on a person's mental health.

    "The underlying mechanism is social comparison," Steers said. "The reason why you feel these feelings is that you tend to socially compare yourself with your friends."

    This social comparison theory was popularized by US psychologist Leon Festinger in the 1950s. According to an article in The Atlantic  Festinger argued that people have born tendencies to track their progress and measure their self-worth by comparing themselves with other people. That social comparison leads to feelings of insignificance and insecurity. Research has since found that making social comparisons, especially upward comparisons (to people we think above us for whatever reason), are associated with negative health outcomes like depressive symptoms and decreased self-esteem.

    "You can't really control the strong desire to compare because you never know what your friends are going to post. In addition, most of our friends tend to post about the good things that occur in their lives, while leaving out the bad. If we're comparing ourselves with our friends'' sharable highlights', this may lead us to think their lives are better than they actually are, and thus make us feel worse about our own lives."

    So if you are the jealous type, maybe think about signing off of your WeChat for a while. Your well-being may depend on it.

1)倡导绿色生活的原因;

2)实践途径(至少两点)。

注意： 

1)词数80左右(开头和结尾已给出,不计入总词数);

2)可适当增加细节,以使行文连贯。

Boys and girls,

I'm greatly honoured to deliver the speech. 

Thank you.

内容包括：1）表示安慰；

2.）提出建议；3）表达祝愿。注意：1）词数应为 80 字左右；

2）开头和结尾已给出，不计入总词数。

Dear Jim,

Yours,

Li Hua