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.

How do you feel when a teacher says it's time for a test? Do you get worried about it? Look at the next test skills （技巧）!

☆Go to class on time and do your homework carefully.

In this way, you will learn the lessons, such as Chinese, English, maths, and so on. You won't have so many worries.

☆Relax and go to bed on time.

After you finish your lessons in the afternoon, you need to relax in the evening and sleep well at night.

☆Get ready well.

You may take paper, a pen, pencils, an eraser, a watch, and books or a dictionary with you.

☆Read the questions carefully.

You must read the questions carefully before you answer them, or you will make mistakes.

☆Breathe （呼吸） deeply.

When you feel worried, put your pencil down on the table, close your eyes, breathe deeply and count numbers to 10. In this way, you will feel relaxed and you can do well in the test.

Is your school strict?

It's Sunday afternoon and the weather is sunny and hot, My friends and I are in a large and beautiful park. We' re having a good time. 

Jack and Tom are swinging. Steve, Alice, John and Tim are playing hide-and-seek (捉迷藏). Rose, Mary and Lisa are skipping (跳绳). They re good at skipping. Susan is reading a book. Tina and Kate are chasing after my pet dog. They 're running around happily. 

We can see a lot of people in the park. Some are running and some are walking slowly. Look!

A boy and a girl are drawing pictures. Their parents are sitting next to them. They' re talking about something. 

Everyone is having a good time in the park. The park is a great place to have fun. 

A: Hi, Lucy! Do you remember me?

B: Wow! You are Tom.{#blank#}1{#/blank#}. But now you are so tall!

A: Yeah, I'm much taller now.

B: People sure change! By the way, your coat looks quite comfortable. {#blank#}2{#/blank#}?

A: It's made of silk. It's really comfortable.

B: Where was it made?

A:{#blank#}3{#/blank#}. Hangzhou a city which is famous for its silk products.

B:I hope I can have one just like yours. {#blank#}4{#/blank#}?

A: Sure. I bought it in Wanda Shopping Mall on the Main Street.

B: Thank you so much.

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