Tim Berners-Lee is a computer scientist. He is regarded as the father of the World Wide Web.

Burners-Lee was born _______ June 8th, 1955 in London, England. His parents, both computer designers, encouraged him to think and work _______ as he grew up. He was _______ excellent student and naturally took an interest in computers and science.

After graduating from Oxford University, Tim _______ to work at a science research center in Switzerland. There he developed some of the different systems _______ would later become the Web. The first was HTML, the computer language used to make web pages. The second was an address system that let computers anywhere _______ each other and send and receive information. In 1990, while still at the science center in Switzerland, he put them together _______ the first Internet browser. It could run on any computer and allowed people to create and _______ their information.

Tim knew that the _______ people used the Web, the more useful it would be. He wasn’t interested in money __________ knowledge, so he gave out his invention for free. Many people were interested and the __________ of the Internet began.

Today, Tim works __________ a professor at the MIT in America, researching new and interesting ways to use the Web. He has received __________ awards from governments and organizations for his efforts. He is still not very interested in money. That is why he __________ by his students and workmates. It may also be one of the reasons that __________ people outside the world of technology know his name.

When it comes to November 11, the young generations will consider it as the Singles’ Day as well as the online shopping Carnival（狂欢节）.

Online shopping has been much more _______ especially after Jack Ma, the CEO of T-mall and Taobao, had the _______ of “Double Eleven”. The advantages of online shopping include cheaper prices, fast searching and comparing between products, and saving _______. Before the shoppers make their decisions, they can check recommendations about the products from other buyers. It is truly global so people can buy the best products from all over the world. Distance is no longer a _______ because most sellers provide an express service（快递服务） and goods will be sent straight to the door _______. You don’t even need to _______ out of your house or go to the shops. You can stay at home with a nice cup of tea and just click your mouse to choose the article you like.

Online shopping is very _______, but there is always a trap. Shoppers who buy products online are _______ that the products may be different from what they have expected. Online shopping has proved to be _______ sometimes. Online shoppers have to fill in their personal information and credit card information, which can be stolen and used by skillful hackers. It will increase the risk of losing money. So we should be ________ enough to avoid these problems when we enjoy online shopping.

In my opinion, China’s “Double Reduction” Policy(“双减”政策) aimed at easing(减轻) education-related pressure on parents and children is effective. Now take my home as an example to show how it works.

“Dad! Get up! You promised to take us to the zoo today!” my two daughters shouted together one recent Saturday morning. The clock had just struck seven, but our house had already gotten noisier than the monkeys in the zoo!

For families with children, weekends have become very different. In the past, my wife and I could at least sleep in(睡懒觉). Then at 9 o’clock, we had to wake up the kids. After throwing them into a tutoring class(辅导班), we could enjoy several hours to ourselves. But now, these classes are gone altogether. Kids, of course, are happy about this. Every Tuesday or Wednesday evening, my girls would ask me, “Where are we going to spend this coming Saturday?”

Luckily, there are still some classes for them to attend. On Sundays, my girls go to learn ballet and chess. They really enjoy their time there. My elder daughter is old enough to read quietly on her own. On lucky days, we can get her to read together with her sister. Still, a quiet “competition” is on. My girls sometimes talk about how their classmates have spent an exciting weekend. It’s their way of complaining about my laziness.

Weekends are more tiring now for parents, but I think they are good for kids. After all, childhood should be more than just studying school subjects. It should be more colorful.

① It is easy to believe that the daily life of a plant is simple and boring. They seem to just stand there and sunbathe. In fact, plants are always busy doing many things. Measuring (估量) light is one of them. This activity helps plants to plan better for the future.

② To start with, we should know how plants feel the light. In fact, there are some special proteins (蛋白质) in their cells (细胞). Once receiving light, they will call on other cells to produce, resulting in the growth towards the light.

③ Then what can plants get from measuring the changes in the amount of daylight? This helps them to tell what time of the year it is. If a plant is beginning to get more daylight, it knows it’s spring. Because of this, it may then start producing flowers.

④ If the amount of daylight starts to get low, the plant knows that autumn is coming. It may start to store “food” for its growth. For example, the potato plant will make tubers(块茎)—the potatoes that we eat.

⑤ Plants record not only the amount of daylight they receive, but also the quality of light. Some forms of light can help plants grow better. Direct sunlight, for example, works better than light that is being separated through the leaves of other plants. A plant can’t get the right form of light when it is prevented from getting light by other plants. It may then begin to grow taller or produce larger leaves in order to get more sunlight.

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Have you ever paid for educational podcasts (播客)or live videos? Ask some people and most of them will say yes. "Pay-for-knowledge" has been more and more fashionable these years. The contents of these "pay-for-knowledge" products are from language learning to gardening or baby-caring. Everything you think of can be found online at this moment. "Pay-for-knowledge" is on the rise(兴起).

Why is "pay-for-knowledge" industry developing so rapidly? First, its development is based on the Internet. With a fast network and a smartphone, anyone who has passed the identity(身份) check can be an online teacher, and anyone with an online account can buy "pay-for-knowledge" products that he or she wants at an affordable price. Second, people are afraid to miss any information. On one hand, people hope for more useful information.                    

On the other hand, such information is usually at the hands of experts (专家) who serve well-known companies and universities. Moreover, the need to learn new skills in today's job market also pushes people to learn on such educational podcasts.

The industry of "pay-for-knowledge" has proved to be lucrative. It promises possibilities of turning information into money. It is good for the development of our country and it can help sellers make lots of money. Besides, buyers can enjoy self-growth from it. What's more, this is a reflection(反映)of respect for knowledge and talents.

However, the rapid development of "pay-for-knowledge" has a few problems. For one thing, the market is full of eye-catching words such as "How to be an Industry's Expert in 5 Hours" and "15 Classes to Be a Master of Appreciating (欣赏) Classical Music", which sound like if you pay for it, you are sure to succeed. For another, a large number of customers buy them just for showing off. In fact, those who have really had self-growth after buying online courses may be the kind of people who need them least. In other words, with or without these courses, they can make it anyway, because they are those who have the ability to learn by themselves.

In general, the best is the one that suits you most. "Pay-for-knowledge" may be used as a good start for self-growth. Be careful! Otherwise, your dream of success may not come true.

Have you ever stayed in a hotel? Most Chinese hotels often provide guests with things like disposable (一次性的) toothbrushes, toothpaste, shampoo and slippers.     41     But, if you travel to Beijing, remember to bring your own things. Some hotels in Beijing will no longer provide guests with these disposables.     42    

Many disposable things are made of plastic. People throw them away after only using them once.     43     Do you know one Chinese person makes as much as 400kg of waste a year! Most of that waste comes from disposable things. In Beijing, people throw away about 19,000 tons of plastic bags and 1,320 tons of plastic lunch bowls every year! Plastic can take between 100 and 400 years to break down.     44     So, wherever you travel, bring your own things and use them again and again.

Back at home and school, you can also do something to make our world a better place. Try to do these things in your daily life: Use cloth shopping bags, not plastic ones. After using a plastic bag, wash it out and let it dry. Then you can use it over and over again. Do not use paper cups.     45