阅读短文，从短文后各题所给的A、B、C、D四个选项中选出最佳选项。

As the COVID-19 virus spread all over the country this spring, we were again stuck at home and had to take online classes. I was ________ because I was able to stay at home and could ________ on my computer anytime I wanted to. At first, I only played video games after I had finished my ________. However, not long after online learning began, I could no longer stop myself from ________ playing games while listening to the teacher. In the first few days, I was satisfied with only playing a little bit, but after a while I gradually ________ listening to the teacher completely. So it became more and more ________ for me to finish my homework.

After taking an exam that was held online in order to ________ our learning, I quickly realized that I could no longer play games as my ________ had all dropped greatly.

My teachers and ________ also talked to me. It was not until that moment that I ________ it was my lack of self-discipline (自律) that had ________ all of this to happen. I knew then that I immediately needed to get back on a ________ studying plan. I uninstalled (卸载) all of my ________ and started to take my classes seriously. With all my efforts put into extra studying time, I was able to get a good ________ on a test that we took after we had gone back to ________.

From this experience I learned that we must control ourselves well or we will bear all the result for all of the mistakes we have made.

Dan Scarfe’s grandfather has a hearing problem. During a family gathering last Christmas, Scarfe noticed something. His grandfather was sitting quietly by himself. The old man was unable to join the others’ conversations.

Scarfe was sad about this. “Grandpa watches TV with captions (字幕),” he thought.“Why can’t we put captions on our conversations?”

Then, Scarfe began working on that idea with his team. They spent about half a year developing XRAI. These smart glasses help users “read”spoken words.

The glasses are connected to a smartphone. There is a microphone (麦克风) on the glasses. It records audio (音频) and sends it to the phone. A piece of software (软件) turns the audio into words. These captions are then shown on the glasses.

You can wear the glasses and speak to someone face-to-face or over the phone. That person’s words will appear in white words on the glasses in real time. This allows users with hearing problems to reply quickly during the conversation.

Scarfe’s company began selling the glasses, and they soon became very popular. Many users call the invention “life-changing”. “I can keep up with my friends’ conversations better,” said one of them. “I feel more involved than ever before.”

The weather forecast tells what the temperature and air conditions will be in the near future.     51     The weather can be sunny or stormy. It can be warm or cool. It also can be rainy, cloudy or windy. Sometimes, weather is terrible. A snowstorm or a thunderstorm may happen quickly. When we get information ahead of time,     52    

A meteorologist（气象学家） is a person whose job is to forecast the weather.     53     A tool for getting a correct measurement of the temperature is a thermometer. A high temperature probably means plenty of sunshine for everyone.

In rainy weather, a meteorologist uses a rain gauge. A rain gauge gives data about how much rain is falling outdoors. After it rains, you may be able to see a rainbow. A rainbow comes up when the sun comes out and there is still rain in the air.

Wind brings us our weather. It blows clouds from one place to another.     54     A wind vane（风向标） provides this information. Knowing the wind direction helps a meteorologist know what weather is coming.

    55     As our knowledge about weather gets better, the forecasts become more correct.

Today I went on the Internet and took an online tour of Zhalong. It took me     56    , but it was very     57    .

Zhalong Nature Reserve is in Heilongjiang in North﹣east China. It is one of the wetlands of international importance. Every year,     58     from China and other countries go to Zhalong to study the lives of the birds and insects there.

The wetlands are important     59     home to birds and insects. Many birds live in Zhalong Nature Reserve all year round and some fly there for     60    . They can find water to drink and food to eat.

On my tour, I     61     a lot of birds and insects. More than 200 kinds of birds stay in Zhalong in winter, including red﹣crowned cranes. There are also more than 270 kinds of insects in Zhalong.

Zhalong     62     more people to work there. It is a good place to     63     different kinds of birds and insects, and more about their lives. From this tour, I have learnt about     64     wildlife protection. I should try     65     wildlife and the wetlands.

Twice a week, I play ________ after school. I love this game and practise hard every time. Our team ________ two games last month.

It was about two o’clock in the early morning. I was sleeping when the ________ started. At first, I felt a slight ________. Then I heard a ________ noise like thunder.

The Natural History Museum in London holds a competition each year for photographers of wildlife. This year, the competition had more than 38, 000 entries from a    67     the world.

These photos s    68     many different amazing animals. Some of these animals have seldom ever been seen. O    69     are acting in surprising ways. Many of the photographers were just in the right place at the right time.

In the e    70    , Karine Aigner won the name of Wildlife Photographer of the Year. The American photographer took a picture of a “ball” of cactus bees. Cactus bees usually live d    71    underground. People don’t often get to see them in large n    72    . The “ball” was in fact a group of male bees. They were fighting over a single female bee.

The work of wildlife photographers isn’t e    73    . They work in the sun. They lie in the dirt (泥土). To get a p    74     picture, they have to spend a lot of time alone. Aigner is only the fifth women to have ever won in the history of n    75     sixty years’ competition. She was thankful to the museum for recognizing her work. She also h    76     that the prize would encourage more young women to join her.

Feeling shy around your new friends? Playing some icebreaking games can help you get to know each other better. Give it a try!

Describe Yourself

The first player should use one word to describe himself or herself. The first letter of this word should be the same as the first letter in his or her name. Henry, for example, can call himself “Happy Henry”. The next players should say their own name combination (组合) as well as the name combinations of all the players in front of them.

Ten Fingers

Players should hold up all ten fingers. One by one, they can say one fact about themselves. One could possibly say, for example, “I can swim.” The other players who can’t swim should then put down one finger. When a player puts down all ten fingers, he or she loses the game.

Who Am I?

Each player is randomly (随机地) given a card with someone else’s name on it. The card should be taped to the player’s forehead (额头). This way, the player can’t see whose name is written on it. This name becomes his or her new identity (身份). Players can ask others “yes or no” questions about themselves. For example, one may ask, “Do I have long hair?” Players should use the answers to guess who they are.