Huang Wenxiu is one of the role     1    （model） of the times. A TV show The Daughter of The Mountain told us her story. It has received lots of praises from viewers online.

When Huang was in college, the idea of serving her hometown came to her. After     2    （graduate） from Beijing Normal University in 2016, Huang returned to her hometown. She once said, “I grew     3     in a mountainous area where quite a number of people live in poverty（贫穷）. And all I wish is to do my part to change     4     lives.”

But Huang soon discovered that her job was not easy. She had been worried about the village     5    （develop） for a long time. It took her two months just     6    （visit）the 195 poor families in the village. The road out of poverty is long. She traveled 25, 000 kilometers by car in one year.

Huang encouraged     7    （village）to plant sugar oranges and many other plants, and she helped them sell their products online.     8    （luck）, 418 of them got rid of poverty thanks to Huang’s hard work.

But sadly, on June 16, 2019（暴洪）. She was     9    （sweep）away by the flood when she was driving back to work.

    10     she passed away, the mountains and rivers there will not forget her, and the people there will not forget her.

Zhao Yiyi is 11 years old. She was born in Hong Kong, and now studies in California. Zhao did some     1     (amaze) things recently —she wrote     2     book in English called India and the Fairies (《银蝶与仙女》). The book     3     (come) out in June this year.

The book has six     4     (story). Each one has magic and tries to tell us something big. For example, in Wolfsville (《狼镇》), a young girl saves a wolf and makes friends     5     it. In Lily, a leopard (猎豹) is sad     6     people do things without caring about her home. “Through stories, we can call on people to love     7     (we) friends and families, nature and animals, or whatever is     8     (beauty),” said Zhao.

For Zhao, it’s important to think     9     (free). “When I look at buildings, I think of big monsters trying to get me.” Zhao said.

Patience (耐心) is important, too. Zhao writes it down when an idea comes. If it     10     (go) away, she will read a book or go outside to see different things in nature. She just waits for it to come to her again!

【推荐2】Orbiting classroom

Do you still remember the lecture from China’s Tiangong space station last year? On March 23, astronaut Zhai Zhigang, Wang Yaping and Ye Guangfu gave another one! It was livestream（直播）worldwide. What fun experiments did they do this time?

Last time, the astronauts made a water ball in space. This time, they turned a water ball into an “ice” ball! Well, it’s not a    1     ice. It’s supersaturated sodium acetate solution（过饱和乙酸钠溶液）.

The supersaturated solution is very unstable（不稳定的）. The astronauts dropped a small crystal（晶体）of sodium acetate into the ball-shaped solution. Suddenly, more sodium acetate crystals grew, making a white ball of “ice”. This “ice” is anything but cold, however. The p    2     actually gives off heat.

How do you build a “bridge” with water? It’s h    3     to do it on Earth. But in the space station, with little gravity, it’s quite easy!

In the lecture, Wang Yaping first made two water balls on two plates, then let them touch each other. Next, Wang p    4     the two plates apart, and the water between them didn’t break. It became a “bridge”! This is because the surface tension（表面张力）of water is not disturbed by gravity in space. The surface tension keeps the “skin” of the water strong so that the bridge doesn’t break.

If we m    5     oil and water in a bottle on Earth, they will quickly separate because they have different densities（密度）. Gravity brings the water down while the oil stays on top. H    6    , if you do this in the space station, with no gravity, the oil and water will blend together.

How can we separate them, then? In the lecture, Ye Guangfu rotated（旋转）the bottle to c    7     centrifugal force（离心力）. With this man-made gravity, the heavier water is pushed to the furthest point, which brings the lightest oil closer to the center.

Have you ever shared a room with someone, perhaps a brother, sister, or roommate? How did you get along with the other person? Did you always have arguments     1     did you work out a way to share the space without arguments?

Astronauts say that one of the most difficult     2     (part) of space exploration (探测) is sharing a tiny area with other people for a long time. Spaceships     3     (design) to make the best use of every bit of room. There is no more area that you can escape to have     4     quiet time all alone. Nor can you decide to get away and go for a walk. It’s even     5     (difficult) when you share the small area with astronauts from other cultures. These astronauts are usually the people     6     may have different lifestyles and customs.

    7     do astronauts manage to have good relationships with their partners? First, astronauts are     8     (careful) chosen for their experience, physical fitness, and ability to get along with other people. They decide to finish the task successfully, even that means giving up some     9     (person) needs for the time being. Each member of the space team does research, so that takes up a lot of time. Then there are “spacing” skills such as listening     10     music on headphones or writing that can be done alone. Perhaps some of these will help you with your roommate.