Most of you have heard of the term “big data”. If anyone     1     (confuse) by it, let me explain it. When a company records the information of millions of users, it can analyze this “big data” to discover patterns and trends, allowing them to make better business decisions. It sounds like a science experiment, but every single user who gives up their information     2     (become) an unwilling test subject. Companies claim that the data is used to provide “better service,”     3     is really an excuse for them to make more money.

Take shopping on Taobao     4     an example. You will get product recommendations     5     (base) on your previous purchases, making it much     6     (easy) to finish a shopping list. However, did you really end up only     7     (purchase) items you originally had in mind? Or did you add a few more to the cart? That's where the business wins. And the customer? They just become one more point of data in the system.

As technology grows more advanced, there will only be more     8     (opportunity) for you to be exposed. Every single photo, text or video you post on the internet is there to help someone paint     9     better picture of you. Perhaps in the near future, someone will have collected enough data     10     (predict) the future decisions you will make before you even make them.

It's hard to keep up with technology, especially when science fiction becomes science fact. For decades, we     1     (watch) movies about a future with flying cars. This week, we saw a real one. A prototype flying AirCar     2     (successful) completed a test flight between two cities in Slovakia. The 90km journey took 35 minutes. AirCar is from a company     3    (call) Klein Vision. The company founder said,"     4    (fly) at a height of 2,500 metres and a speed of 185kph, it has turned science fiction into a     5    (real) ."

AirCar is a road-legal car     6     transforms into an aircraft in less than three minutes. AirCar CEO Professor Stefan Klein flew and landed the vehicle     7     its test flight. After landing at Bratislava Airport, he pushed one button     8     (turn) the aircraft into a sports car and drove it into downtown Bratislava. He described     9     flight as "normal" and "very pleasant". His company is working on a newer AirCar. This will have a much     10     (power) engine that is capable of a cruising speed of 300 kph and a range of 1, 000 kilometres. The newer model will be a four-seater as opposed to the two-seater that was recently tested.

In an effort to fight against global warming, Purdue University engineers have created the whitest paint that can keep surfaces cooler than the formulation(配方)that the researchers had     1     (previous) shown.

The new whitest paint formulation reflects up to 98. 1% of sunlight compared with the 95. 5% of sunlight     2     (reflect) by the researchers' previous white paint and sends heat away from a surface at     3     same time.

Two features give the paint its extreme whiteness. One is the     4     (paint) high concentration of a special chemical,     5     is used to make photo paper white as well. And the second feature is that the barium sulfate particles(硫酸钡粒子) are all different     6     size in the paint. How much each particle scatters(散射) light     7     (depend) on its size, so a wider range of particle sizes allows the paint to scatter more of the light from the sun.

The extreme whiteness also means that the paint is the     8     (cool) on record. Using high-accuracy temperature reading equipment, the researchers have shown that the paint can keep surfaces 19℉ cooler than their surroundings at night and cool surfaces 8 ℉ below their surroundings under strong sunlight during noon hours, The researchers hold a firm     9     (believe) that coating buildings with this paint will one day cool them off enough     10    (reduce) the need for air conditioning.

As computing power increases and algorithms (运算法则) become     1     (complicated) and even cleverer, AI develops at a very rapid pace. You can better enjoy your life by pressing a button to send a robot to do all the work for you. Some essential abilities     2     (learn) from experience, adjust to new inputs and perform tasks like humans are what AI is expected to gain. The term AI     3     (coin) in the mid-1950s. That Deep Blue beat the world chess champion Garry Kasparov in 1997 was     4     breakthrough in AI.

Nowadays, AI is being applied in many     5     (field), such as finance, health care and so on. In short, this technology is transforming the way we live. With machines like AlphaGo now capable     6     thinking and learning from their mistakes, we are getting closer to the dividing line between humans and machines.

In the future, it could     7     (significant) reduce the burden of long-lasting disease,     8     (allow) people to live healthier lives for longer lifespan. There is no doubt that these benefits are accompanied by concerns and fears. An increasing number of concerns about AI arise,     9     demand our attention. We need to make sure that we will not fall victim to AI. We may still think it would be fantastic to relax all day and allow autonomous machines to do all the work for us. But the key is that we should not be too     10     (greed).

The Shenzhou-17 spacecraft flew high into the sky from the Jiuquan Satellite Launch Center in Northwest China on Thursday morning,     1     the significant occasion of the 20th anniversary of China's first manned spaceflight the Shenzhou-5.

Sitting on the top of the Long March 2F Y17 carrier rocket,     2     (taikonaut) Tang Hongbo, Tang Shengjie, and Jiang Xinlin, committed     3     (they) to the journey to ward the China Space Station. Following a smooth flight of around 10 minutes, the Shenzhou-17 spacecraft entered its planned orbit,     4     (mark) a successful launch,     5     was released by the China Manned Space Agency(CMSA). The cooperation between the two crew groups     6    (apparent) signals a giant step in China's ongoing space exploration.

In the past 20 years, China has carried out 12 such crewed missions involving     7    latest Shenzhou 17 mission     8     (acknowledge) as a great achievement. Since its flight in1999, the Long March 2F rocket, the country's first and only manned carrier rocket,     9    (maintain) a perfect record rate. The Shenzhou-17 crewed flight mission has some crucial objectives, including the in orbit crew rotation(机组轮换) and several experiments     10     (conduct) in April 2024.