How did your grandparents go to work when they were young? By ________, I’m sure. Did you see the “ErBa” bicycle with your own eyes? It’s ________ than a shared bike. In the 1960s and 1970s,________ there were many bikes running on the street, we call China “the kingdom of bicycle”. I think ________ all those bikes, “ErBa” bikes were the most popular ones. But now most bicycles disappear, ________ “ErBa” bikes. People ________ to use these heavy vehicles, though bikes don’t cause pollution. ________ did the “ErBa” bike disappear in some places? Because the cars and the e-bikes are on the stage of Chinese people’s life. They are more ________ and faster in the city.

To our surprise, “ErBa” bikes ________ very popular in the countryside of South China. People living there grow bananas but they have ________ carrying bananas down the hills. People don’t have so much money to buy trucks (卡车), and the roads are in bad ________. Then they find “ErBa” bikes have a lot of ________. For example, the bikes don’t need energy, these bikes can carry about 150 kg bananas and it’s easy to ride on their rough (不平整的) roads. Their prices are ________. This kind of bike costs only ________ money. With “ErBa” bikes, people can feed their families. But it’s dangerous for young people to rush down the hills on their bikes. Why don’t they ________ to keep safe? Wearing helmets, I think, is also necessary.

Can dolphins (海豚) talk? Maybe they can’t talk ________ words, but they can talk with sounds. They also show their feelings with ________.

Dolphins travel in ________ group. We call the group a “school”. They don’t ________, but they swim together. Dolphins talk to ________ other in the school. They tell other ________ when they are happy or sad. They say “________” when a dolphin comes back to school. They make a ________ sounds above water. They make ________ sounds under water. Sometimes people take dolphins ________ large aquariums (水族馆). So they can ________ dolphin shows in the aquariums. Dolphins don’t like to ________ in the aquarium away from ________ school.

There are many stories ________ dolphins. They help people. Sometimes they save ________ lives. Many people believe that dolphins can bring them good luck.

3 . Many people use mobile phones as the alarm clocks and they also use them to check e-mails before sleeping. It’s a pity that these _________ are causing (引起) most of their sleeping problems.

Several years ago, my boss always _________ her mobile phone until very late and had difficulty sleeping later. She even got badly ill because of that. Now she always _________ her phone in another room at night. And she also _________ her friends to do so. “I give each of my friends the _________ Christmas gift—an alarm clock. So they could _________ using the phone as the alarm clock,” she said.

If your mobile phone _________ you up in the morning, it may also keep you up at _________. A study shows that people like playing with mobile phones a lot _________ have sleeping problems. And according to a Swedish __________, a quarter of young people in this country like having their phones _________ them. The study also tells us that most of them feel _________ for not replying messages. They even reply messages to their friends before sleeping.

So what kind of people like to use mobile phones in their _________ better? A study showed that three quarters of people aged between 18 and 34 like to sleep with their phones near _________ better. That number becomes _________ in the middle age, but only people aged 65 and older like leaving the phone in another room when they are sleeping.

Tofu is common and popular in China. When you walk into a dining room or a restaurant on the street, you can ________ see tofu on the menu. Yes, tofu! Tofu is a big ________ of our daily diet.

Tofu can be made ________ food such as Mapo Tofu, assorted tofu and snacks like stinky tofu. Do you ________ why tofu can be used for so many different things? That’s because tofu has a mild ________, and it gives the food the ability to take on nearly any taste. It is ________ to add to many dishes and snacks.

People like eating tofu ________ it is a kind of healthy food. Tofu is rich in soy protein, vitamins and minerals. They are all ________ for good health. According to a recent study, if you eat soy protein often, it can ________ lower cholesterol levels by as much as 30 percent.

Tofu was ________ over 2,000 years ago by Chinese. While the true story behind its creation is uncertain, a legend says that tofu was first made by ________ when a Chinese cooked a pot of soybean milk. He added ________ to the soybean milk and it caused the soybean milk to curdle and the result was tofu. Since then, tofu has become ________ in China.

Tofu is not only popular in China, but also in Western ________. Tofu attracted Western attention in the 1960s because Western people thought tofu could be the healthy food they were ________. Westerners sometimes call it “the cheese of Asia” because a block of tofu can look like a block of cheese.

Word Bank

mild 淡味的 soy protein 大豆蛋白 minerals 矿物质

cholesterol 胆固醇 legend 传说 curdle 凝固

6 . Every morning you get up, wash your face, brush your teeth, eat breakfast and get ready ________ your day. The daily actions are ________ common that you don’t think about them much. But what if you were in space?

When astronauts (宇航员) are in space, they eat, sleep, wash, work and play. They do the same things as us, but they do them ________.

On Earth, we put food on a plate and water in a glass. Gravity (引力) holds the food down and ________ the water in the glass. But in space, there is ________ no gravity. So food can move slowly in the air, and astronauts must eat and drink carefully. They have special plates so that their food doesn’t float away. They use ________ bags for drinks so that the drink stays inside.

________ is very difficult in space. Some astronauts like to move in the air, but ________ like to be in a sleeping bag. They tie the bags ________ a wall so that they don’t fly in the air at night. The sun rises and sets so often that the astronauts use a clock or music to wake them ________.

Exercise is very important in space. On Earth, your legs carry your body, but in space, astronauts ________ in the air, so they do not use their legs. This is very bad ________ their legs. So they must ________ for thirty minutes every day. They often use an exercise bicycle for this.

________ a day’s work, astronauts relax. They may listen to music, read, watch films, play games, or talk to their friends and families on radio. The ________ popular pastime is looking out of the window, looking at the space and watching the Earth.

Different colors usually affect people’s mood. What is your favorite _______? Orange and red are light bright colors. Do you like these colors? _______ orange room can make most people feel cheerful and relaxed. A red dress _______ warmth and pleasure to the sad winter days. These colors make students not only happier but also _______ active in their work. Students _______ better, harder and make fewer mistakes when they use orange and red school things.

What color do you think most people would like? I think blue will be popular. Blue means _______ and kindness(善良). People don’t like wars. Blue will make people remember to keep the world in peace. Some people think _______ will be popular because they think green is the color of nature. Now the environment problem is very _______. People are thinking more about how to _______ the environment. When people wear green clothes, they will keep the environment in their hearts and try to make the environment ________.

Yellow will be another popular color. ________ will it be popular? People are very busy these days ________ they have a lot of things to do. Yellow is a soft color and it can make people feel ________.

Most people think black will ________ be the most popular color. It always ________ cool. It’s a kind of popular color these days.