A tornado (龙卷风) is a kind of strong storm with air which moves in a circle quickly. They can move over 200 miles per hour and cause a lot of damage (损坏). As they move across the land, they can easily pick up cars, trucks, and even houses, and then throw them very far. It is important to find a safe place if a tornado gets close.

A safe place could be a basement ( 地下室) or the lowest floor. If you are in a home without a basement, try to find a first-floor bathroom or a small room without windows in the middle of your house. You should curl up (蜷缩) into a ball and cover your head and neck with your hands.

But there are some people who actually want to get close to tornadoes. They are scientists who want to learn more about tornadoes. One of the best ways to do this is to get as close as possible to the tornado. They use special tools to measure (测量) what is happening in and around a tornado.

One special tool is called a tornado probe ( 探测仪). Inside the tornado probe, there are sensors (传感器) to measure wind speed, temperature, pressure, and direction.

Some probes even have cameras, so the scientists can see and understand what it's like to be in a tornado.

To be able to get these measurements, the scientists have to get a tornado probe near or into a tornado. Scientists will try to guess where a tornado will go next. Then they drive to that location and put down the probe. If they do not guess correctly, they pick up their probe and try another place. If they are right, the tornado will go near or even right over the probe. Then they take all of the measurements

from the probe and use them to predict where future tornadoes may form (形成) and travel. And they can give people some warning to keep away from a dangerous tornado.

I had a summer camp with my classmates last year. 

Early in the morning, we gathered(集合) at the bus station. After saying goodbye to our parents, we got on the buses. It took us more than two hours to arrive at the campground. 

We got off the buses cheerfully. Laughing and shouting, we jumped and ran all over the place. It was the first time for us to be away from the parents. Some of us started to feel homesick(想家的). However, when the night party and dances began, the homesickness was gone. 

The next day, everyone rushed to the boating class, hoping to be at the head of the others. At first, my friends and I worked hard, but the boat wouldn't listen to us and kept going round and round. Then the teacher taught us how to work together. After many tries, we did much better, 

Swimming class was my favourite. It was about the hottest time of a day and the best time to stay in the cool water. The swimming teacher was a funny man, and during the class he often made us laugh happily. 

During the week I learnt a lot of new things and made many new friends. I also learnt how to take care of myself. 

In the eyes of many foreigners, Chinese people are the best hosts and the worst guests. And Western hosts sometimes look rude (粗鲁的) in the eyes of Chinese guests too. That's because the guest-host relationship in China is{#blank#}1{#/blank#}from that in some Western countries.

Whenever I enter a Chinese home, there is always fruit on the table for me, and there is always someone bringing me a{#blank#}2{#/blank#}of tea or water.{#blank#}3{#/blank#} in the West, the hosts always do things in their own way. 

My wife's mother is Chinese and she doesn't smoke. When I see some of her guests smoking in her house, as a non-smoker, I {#blank#}4{#/blank#}unhappy. Usually I want to {#blank#}5{#/blank#}them directly, but in China, a good host does not do that. In most North American homes, if you are a guest, and the hosts are non-smokers, you should not smoke in their house. At the very least, you should ask, "Is it OK if I smoke here?" But, don't be {#blank#}6{#/blank#}if they say, "No, you can't smoke here," In our culture, if you smoke in the host's house, you are a bad guest. But if the hosts don't allow you to {#blank#}7{#/blank#}in their house, it doesn't mean they are rude hosts.

Guests in China also {#blank#}8{#/blank#}special habits. Some Western people may not adapt to (适应) these habits very soon. Thankfully, my wife is Chinese, so whenever we visit a Chinese family, she {#blank#}9{#/blank#}me to buy the host a gift. However, giving a gift to a host is not always necessary in my country. So, if you invite international guests to your house, don't be too surprised if they don't bring you a(n){#blank#}10{#/blank#}.

In a word, no matter where you are, the best way to be a good guest is to adapt to the habits of your hosts.

①Is the summer vacation long enough to turn life for the better? Every person has his own talents and interests. Find something you care about, and you will see the difference.

②Organize a clean-up program. People often throw litter in the place where there is already litter. This leaves the community in a mess. The environment will become better if someone volunteers to help. You could pick up the rubbish with your friends once a week in your neighborhood. You could also help take care of the plants every few days. Surely, a clean and tidy neighborhood will be worth the work.

③Show your love to the old. Our city has some old people's homes. Without children around them, the old people there might feel lonely once in a while. Maybe they need your help. In fact, you can do a lot for them. For example, you can talk with them or play games with them. Listening to them carefully is also a good idea. Some old people can't see clearly and they would like you to read to them. No matter what small things you do, you can make them feel loved.

④Set up a reading project with your friends. Share your favorite books with them. Besides, you may read aloud to each other and talk about what you read. Either a book or an article can spark a lively discussion and your further thinking. The process often challenges more people to take action. The project is also a good way to welcome newcomers. At the same time, you may find new friends with similar hobbies.

⑤A two-month summer vacation isn't that long, but it's enough to make a difference.

●don't spend too much time online……

●keep personal information safe……

●don't chat with strangers……

●use the Internet for helpful activities……

●avoid visiting harmful websites……

注意：1. 文中必须包括所列的要点，并作适当发挥；

2. 词数:80~100。

 One morning, Jackie is riding his bike home. He sees his friend, Ms Weasel. Sheís sad. Her bike has a flat tire (爆胎) but she must go to work now.

 Jackie says, "Ms Weasel, you can use my bike first. Tammy will help fix your bike."

"Thank you so much!" Ms Weasel says.

 "Sharing is caring!" Jackie smiles. Then he walks home:

 When Jackie gets home, he finds a big hole (洞) in his trousers. Oh no! He only has one pair of blue trousers!

"Don't worry!" Tammy comes, "I have many trousers. You can wear mine." That makes Jackie happy.

"Sharing is caring." Tammy says happily.

 Jackie then goes into the kitchen to make beef soup for dinner. Tammy comes with some vegetables. "Wow! What delicious beef soup!" she says.

"Let's have it together" Jackie says. "Sharing is caring!"

 Then someone is at the door. It is Ms Weasel"Thank you for your bike today, Jackie. I have a gift for you!"

"Wow! Honey cake! Our favorite!" Tammy says.

"We just made beef soup. Let's have dinner together." Jackie says.

"Thank you!" Ms Weasel sits down, "Sharing is caring!"