【推荐1】Look! It’s a Smart Panda Bus. It looks like a panda with black ears and big eyes. It can carry 22 people and is about 12 meters long. It’s cute and smart.

The Smart Panda Bus uses AI technology(人工智能技术) and it can do a lot of things. The bus can drive by itself without a driver. But don’t worry! It’s very safe. When you get on the bus you should show your hand. The bus can read your handprint and know who you are. There are also robots on the bus. You can talk to them and ask them for help. If there is a bad man on the bus, the bus will call the police. Inside the bus, there is a vending machine. You can buy breakfast or some drinks on the bus. This can save you a lot of time.

People in some cities, such as Changzhou in Jiangsu, Jinan in Shandong and Deyang in Sichuan, can take the bus. Maybe in your city, you can also take it soon!

After a new-type coronavirus was detected in viral pneumonia cases in Central China's Wuhan city two months ago, more cases have been cured in recent days. To prevent infection(感染), here’s what you can do:

Wear masks outdoors

Wearing a mask is one of the most effective ways to protect you from getting infected.

Make sure you wear it properly by tightening up the nose clip and pulling the bottom of it over your chin.

If you’re not feeling well or have symptoms(症状) of fever, a mask is also needed to prevent you from spreading germs to others.

Cover your coughs and sneeze with tissue

Cover your mouth and nose with a tissue or your sleeve when coughing or sneezing, but don’t cover with your hands directly.

Wash your hands frequently and properly. Wash your hands with soap and running water thoroughly for at least 15 seconds.

Before eating and after using the toilet

After coming back home

After touching trash or garbage

After contacting with animals or handling animal wastes

Strengthen your immune system

Regular exercise is one of the most important ways to keep infection at bay.

Don’t go to places full of people, such as hospitals, railway stations and airports. Wear a mask if transport or movement is necessary.

Seek prompt medical advice if you have symptoms of fever and respiratory infection.

Had better not close contact with people who have flu or cold-like symptoms.

Eat thoroughly cooked meat and eggs. Never contact with wild animals or farmed livestock without any protection.

Wind is a powerful force in nature. Wind energy may cause the great waves in the world’s oceans. Its power can be used to create electricity for cities and the countryside.

Wind can also power many expressions in American English. Let’s start with a simple one. If you run like the wind, you can run very fast. After running, sometimes you can be full of energy.

If you are doing something difficult, it is good to have the wind at your back, for example, when you are sailing. In this way, it is easier to go forward.

Knowing the direction of the wind is the most important part of sailing. When wind fills a sail, it makes the boat go faster. If you take the wind out of someone’s sails, you prevent them from reaching their goals.

Let’s turn from sailing to music. Many songwriters use the image of wind in their songs. If an idea is blowing in the wind, it is under discussion but has yet to be decided. When a singer sings “you don’t need a weatherman to know which way the wind blows”, he means you know what is going on, and he tells you to trust yourself as you can find something out on your own.

Now you know which way the wind blows. Then how can you use these expressions properly? First, read them aloud and keep them in mind. Then, practice using them and test yourself. You know, practice makes perfect.