According to a 2018 study from San Francisco State University, nearly 2. 4 billon people around the world used a smartphone in 2017. By the end of 2018, more than a third of the global population will be using a smartphone.

However, smartphone technology can be a double-edged sword (双刃剑). On the one hand, it sends us lots of information. On the other hand, using a smartphone may become an addiction (瘾).

Erik Peper and Richard Harvey are both health education professors at San Francisco State University. They led the study. Peper explains that smartphone addiction forms connections in the brain that are similar to drug addiction (毒瘾). And these connections form slowly over time. Also, addiction to social media may affect (影响) our emotional state (情绪). The two professors asked 135 university students about their habit of smartphone use and their feelings. They found that students who used their phones were feeling lonelier and more nervous.

Peper and Harvey don't blame (责怪) users for their technology addiction. The researchers warn that workers in the technology industry know how to control our brains and turn us into addicts.

But the researchers say that we can train our brains to be less addicted to our phones and computers. Erik Peper suggests turning off our phones before we sleep or do something important. The researchers also suggest taking control of when and where you answer texts or emails. You don't need to answer them all. And you certainly don't need to answer them as soon as you get them. They also suggest setting limits (设限) on the time you spend.

By keeping your daily habits healthy, you can add years to your life.  Here are some tips for living longer.

Keep daily habits healthy. We eat the same meal, wear the same clothes, and do the same old job. But we sometimes fail to realize that our daily habits can have great influence (影响) on our health. It is important for us to keep our daily habits healthy.

Take some exercise every day. Daily exercise improves our health. Studies show that daily exercise can add three years to our life. Just catch every chance to take exercise. Whenever we can, walk to work. If we live or work in a tall building, just take the stairs. It's really that simple.

Eat a healthy breakfast. Researchers have told us something about breakfast. If we eat an early morning breakfast every day, we will be less likely to be too fat and get diseases. Breakfast-eaters also agree that they feel great all the day. So eating breakfast is a healthy way to start our day.

Have enough sleep. A lack (缺少) of sleep is bad for our life. Failing to get at least seven hours of sleep appears to increase the risk of illnesses (疾病) including heart disease.

Get chances to communicate (交流). There is an old saying that says a good friend is cheaper than treatment (治疗). Any social communication can be good for our body and mind. Luckily, we can have more time and chances to communicate with others and they can give us amazing suggestions.

假如你是李华，你的网友Tracy发来电子邮件说她的室友在寝室到处乱扔东西，因此她们之间发生了争吵（have a quarrel），她为此感到伤心。请你就此事给她回复一封电子邮件，说说你自己的建议。80词左右，可适当发挥。开头和结尾已给出，不计入总词数。 

内容提示：①你所了解到的情况；②你的建议：和她面对面交谈，让她意识到她做的是错的；……

   "Sesame Street" is a TV programme for children. It first appeared in New York ________________1969. It is called" the longest street in the world". That's because the TV programme by that name can be seen in so many parts of the world.

In the US over six million children watch the programme regularly. The viewers include more than half the nation's pre-school children. Parents love the programme. Many teachers also think it is very helpful, _______________some educators are against certain things in it.

Tests show children from different background have benefited from watching the programme. Those who watch it five times ________________week learn more than those who watch it once in a while. In the US the programme is shown at ________________hours so that more children can watch it. The programmes all ________________songs, stories, jokes and pictures to help children understand numbers, letters and human relationship. But there are some differences. For example, the programme made in Mexico City devotes more time to teaching whole words than to teaching letters one by one.

Why is "Sesame Street" more successful than other children's shows? There ________________many reasons-the good education of its producers, the support ________________the government and businesses, and the skillful use of many TV tricks. Also ________________watch it with their children. This is partly because famous adult stars often appear on it. But the best reason may be that it makes every child ________________able to learn. Children find themselves learning, and they want to learn _________________.

There is no one like you in the world, so you should learn to be happy with yourself. As we all know, nobody 【小题1】 (be) perfect. So if you are not the most beautiful or 【小题2】 (smart) person, that's okay. If you feel that you need to make yourself better, try your best 【小题3】 (change). If you have tried your best, but you still can't make yourself happy, try this way. Ask yourself two simple 【小题4】 (question). First, are you happy with who you are? 【小题5】 the answer is yes, there is nothing to worry about. If you're okay with 【小题6】 (you) and you've done your best in everything, you should be happy. Second, have you given yourself enough time 【小题7】 (make) yourself better? You know it takes time.

Self-confidence (自信) is also very 【小题8】 (importance). If you are confident, you'll be okay with the things you do. 【小题9】 here is some advice if you're not confident. First, find out your talents (天赋) and try to use them. Second, don't always compare yourself 【小题10】 others. Third, forgive (原谅) yourself for some mistakes you have made.