1 . I live in a town near Prague(布拉格), the capital of the Czech Republic. Besides cars, bikes are the most important _________ of transportation(运输). As it _________ you to go almost anywhere you want, cycling is a big _________ for Czech people. On weekends, you can see cyclists _________ through the towns wearing helmets (头盔) and cycling clothes.

Some people _________ that living in a town is inconvenient (不便利的), including me. _________, I find life in towns much more _________ than that in big cities after living here for a while. I was _________ given a bicycle by my host family. _________ it is only an ordinary bike, I was still __________ and couldn’t wait to take a cycling trip alone.

One sunny Sunday afternoon, I took my first cycling trip to a village nearby. I cycled for a while, alongside a river. But then, something happened: One of my tires __________. There was no choice but to __________ my bike back home, which took an hour.

I didn’t give up though: One week later, I __________ again. This time, however, there was__________ wrong with my tires. It was a very beautiful town, with a typical Czech castle and a park full of peacocks. People were taking part in a marathon that day. There were also stands selling __________ Czech foods and drinks, such as potato pancakes and beer.

It was already sunset when I __________ to head home, and I saw almost no one on the way back. As the warm breeze softly stroked (轻抚) my face. I felt very __________ and happy.

I believe many of us need a(n) __________ like this to take a break from our __________ life sometimes. So, I really do encourage all of you to take a cycling trip alone, even just to a nearby village. Just look around you, and you’re sure to __________ some hidden beauty.

2 . A first grade teacher from Suffolk, Virginia found a way to teach her students about black history by taking them back in time to meet celebrated black figures. For each day of Black History Month, LaToya McGriff has dressed up like a famous African-American pioneer and taught her students about their significant contributions to the U.S.

On Monday, February 3, she dressed up as Virginian native Mary Jackson and began her creative class. “She was a mathematician who worked as an aeronautical (航空的) engineer whom people referred to as a human computer,” McGriff wrote on Facebook. She shared a photo of herself in 1960s clothing, like Jackson would have worn when she worked for NASA.

Jackson was one of the three “human computers” described in the book and film Hidden Figures, which revealed the African-American female mathematicians whose efforts helped put men on the moon.

Once McGriff started dressing up, she kept going. By February 18, McGriff's Black History Month lessons were starting to gain attention online. She was interviewed by CBS News, and said she works at a majority-black school and “wanted students to see that people who look like them contribute”.

She said that the seeds for this project were planted in her years ago by a teacher who did something similar. “That’s what I remember, having a teacher come dressed as a storybook character. Well, I could dress up as a different figure, an African-American figure from the past or present so they can see themselves represented,” McGriff said.

“My students will want to know who I will be tomorrow. Today, they just said ‘Are you going to be so-and-so?’ Because they want to know and kind of prepare themselves for it so that they can tell me something they know about the person,” she said.

McGriff said bringing history alive kept her students curious and asking questions, and she’s hoping the overall project will give them the confidence to know that, like these historic figures, they can be great, too.

5 . Engineers from China Aerospace Science and Technology Corp ( CASC ) are known for their achievements such as landing a robot to explore Mars. However, the latest display of their wisdom and knowledge took place on the ground at the Bird’s Nest during the opening ceremony for the Beijing 2022 Winter Olympics. They were tasked with building 11 major components for the 140-minute ceremony.

The “ ice cube (立方) ” , a structure covered by LED screens, was an example of engineers using their knowledge to handle technical challenges. The main body weighed 180 tons and had to be raised gradually during the ceremony, which meant that engineers needed to design a reliable method to lift it. Designers and technicians developed a foldable frame capable of lifting the huge cube in just 43 seconds.

Another visual breakthrough is a ground-based display screen covering 10,100 square meters. They used industrial internet technologies to connect more than 40,000 screens and monitor their working conditions. It is essential that engineers should place four signal transmission lines for the screen to prepare sufficient backup capacity to ensure that it functions properly.

The torches (火把) carried by Chinese athletes during the final legs of the relay in the stadium were developed by researchers who used their knowledge and skills gained from developing rocket engines. The torches can burn among wind up to 28 meters per second. They will not go out during strong rain or in low temperatures. New flag poles in the stadium flying the Chinese national flag and the Olympic flag were also designed and made by space researchers.

There is no doubt that technology from space industry has had an unexpected effect on the performance stage during the opening ceremony. Famous filmmaker Zhang Yimou, director of the opening ceremony, said, “As a crucial technical company, it was responsible for the design and construction work for the performance stage. The designs and equipment provided by this company worked very well and far exceeded our expectations. ”

In December 2018, a bunch of friends and I went to Europe to travel. Upon arrival in Vienna, we got the keys to the house from its owner. The     1     (decorate) of the house was quite good.

In Vienna, if anyone wants to copy a key, he or she is expected     2     (prove) their ownership of the property (房产) the key is for. It’s also really expensive. An ordinary key usually costs 150 euros (1.170 yuan). As the person in charge of the keys, I had a great responsibility.

    3     next day, we went everywhere, including the Sisi Museum and a coffee shop in the city center,     4     had dinner in a fancy restaurant. We felt quite relaxed. While we     5     (enjoy) dinner, my friends came up to me, asking for the keys so they could leave early. It was then that I realized that I’d lost them.

The host asked us to give him 300 euros to cover the cost of a new set of keys. We made a complaint about it but we had to pay the money. So, hoping to get our money back, we decided to do some detective work     6     our own.

I wrote an email to the Sisi Museum in the middle of the night, wondering whether the staff had found them. Early in the morning, I received their reply, saying that they had not.

    7     (fortunate) in the end, the keys were found in a souvenir shop. The host even said congratulations to us.

Though we saw many great     8     (sight) in Europe, the most     9     (value) thing about my trip was this lesson I learned: Never lose your keys in Vienna. Your keys ought to     10     (take) good care of.