Do you know what makes lightning (闪电)? {#blank#}1{#/blank#}

    Lightning strikes happen when ice and water in clouds rub (摩擦) together, and cause atmospheric (大气层的) changes. When this happens, it creates a static charge (静电). Lightning can strike inside the cloud, between two clouds or between a cloud and the earth. {#blank#}2{#/blank#}

    Lightning can be very dangerous. Every year, lightning kills people because it can start big fires or because it reaches a temperature of 28,000℃. About 1,000 people are hit by lightning every year in the United States, and about 100 of them die as a result.

    {#blank#}3{#/blank#}Scientists think that there are more than three million lightning strikes every day in the world. An American man, Roy Sullivan, who worked in a park, survived from the most lightning strikes. {#blank#}4{#/blank#}And he keeps the highest world record.

    Lightning is sure not something to play with. When lightning strikes, it's best to stay inside a large building. {#blank#}5{#/blank#}Also, do not lie down on the ground, or the electricity may go through you and cause a heart problem.

请你根据以下内容提示，以"How to Be a Better Teenager?"为题，用英语写一篇演讲稿，在学校演讲比赛中发言。要点如下：（1）演讲目的；（2）针对演讲题目给出至少两点建议；（3）发出号召。

注意：（1）词数80～100词，短文的开头和结尾已为你写好，不计入总词数；（2）可适当增加细节，以使行文连贯；（3）演讲稿中不能出现真实姓名和学校名称。

How to Be a Better Teenager?

Hello, everyone,

It's my honour to stand here to give you a speech. 

Yours,

Li Hui

Mother's Day is coming. It is a time to let your mother know she's special to you. Let's see the history of Mother's Day in different countries.

Long, long ago, in Greece, people celebrated a mid­March day. On that day they showed admiration to Rhea. Rhea was the Mother of the Gods.

Later, English people had their own "Mothering Sunday". It was the 4th Sunday of Lent(四月斋)before the Easter Eve. People usually bought a fruit cake as a gift to Mom. Today English people still celebrate the holiday on the 4th Sunday of Lent.

In America, Mother's Day is a national holiday today. People first celebrated it in 1908 in just one state in the United States. It was all because of Anna M. Jarvis's hard work. She wrote so many letters to important people of that time because she wanted to have a day to show love and admiration to mothers. In 1914，the American President Woodrow Wilson made the second Sunday in May Mother's Day.

These days, more and more people like the "city walk" around China. The city walk is a kind of city tour coming from the UK. It means tourists follow a planned route（路线）working deeply on the city's history and culture. During the traditional kind of travel, people need to follow a group of people. But city walk routes are special for every tourist. People probably choose a route on their own and move on foot without a purpose（目的）. They can also talk with locals（当地人）and taste local food on their way. 

City walkers may be tourists from other places or local young people. For tourists, by taking part in a city walk, they can learn the city's history and culture. For the local young people, they may spend weekends knowing more about their living places. And they even share their routes and places online. So more people get interested in their cities and come to visit them. 

Now the city walk is very hot. However, we also find that to make money, some travel agencies（旅行社）may make some routes without understanding the culture and history of a city. That will make tourists lose interest in the city walk. What's more, many young people spend much time taking photos to just show themselves online. 

要求：（1）要点齐全，语法正确，逻辑通顺，语句优美，60词左右。（2）文中不得出现真实人名和校名。