【推荐1】Do you want a simple T-shirt that could cool you down by up to 5℃ on the hot summer days? Thanks to a recent discovery, the possibility is getting closer. While there are many alternatives that manage to keep the body warm, this amazing invention aims to offer real relief for those who are eager to feel comfortable and fresh in the outdoors on extremely hot days.

Its inventors, engineers Ma Yaoguang of Zhejiang University and Tao Guangming of Huazhong University of Science and Technology in China, took a completely creative approach. They designed a special textile (纺织物) that can absorb body heat and re-emit (重发出) its energy into space as mid-infrared radiation (MIR). This textile cools both the objects and their surroundings through a technique that is known as radiative cooling. Science reveals. This means that even when it looks like you are wearing a regular shirt, you are actually wearing a device that works like a mirror.

A research conducted at Stanford University in 2017 had already managed to cool the wearer by 3℃, but this previous study was limited. So researchers still need to test the new approach to determine how effectively the new fabric cools while the wearers are standing or walking. and not directly facing the sky. They also need to examine and measure how well it works when T-shirts are no in close contact with the skin.

Inventors Yaoguang and Guangming are now looking out for textile manufacturers (制造商) and clothing brands that are interested in using their fabric. They estimate that the new material will increase clothing manufacturing costs by just 10 percent. “We can make it with mass production, which means everybody can get a T-shirt and the cost is basically the same as their old stuff,” Yaoguang said.

So if you are an athlete or simply someone that has to deal with the extremely high temperatures, be patient because your days of feeling hot and bothered may be coming to an end!

1. What is the purpose of the new invention?

A．To warm up people’s body.	B．To cool people off in hot weather.
C．To detect the wearers’ temperature.	D．To protect clothes from becoming wet.

2. How does the special product work?

A．By turning sunlight into energy.	B．By sending out absorbed heat.
C．By keeping heat out completely.	D．By using light colors to reflect sunlight

3. What is the main idea of paragraph 3?

A．The invention needs further testing.

B．The previous studies lack evidence.

C．The new fabric has a good cooling effect.

D．The new fabric applies to various situations.

4. Which of the following statements can best describe the invention of the T-shirt?

A．Barking up the wrong tree.	B．Robbing Peter to pay Paul.
C．Kill two birds with one stone.	D．Putting the cart before the horse.

【推荐2】Whether they’re speeding in to deliver packages or spotting victims in disaster zones, clouds of flying robots could have a range of important functions in the future, a new study found. The robots can change from driving to flying without hitting each other and could offer benefits beyond the traditional flying-car concepts of science fiction, the study said.

The ability to both fly and walk is common in nature. For instance, many birds, insects and other animals can do both. Robots with similar features could fly over obstacles on the ground or drive under overhead obstacles. But currently, robots that are good at one mode(模式) of transportation are usually bad at others, study lead author Brandon Araki and his colleagues said in their new study. The researchers previously developed a robot named the “flying monkey” that could run and fly, as well as grasp items. However, the researchers had to program the paths the flying monkey would take; in other words, it could not find safe routes by itself.

Now, these scientists have developed flying cars that can both fly and drive through a simulated(模拟) city-like setting that has parking spots, landing pads and no-fly zones. Moreover, these drones(无人机) can move autonomously without hitting each other, the researchers said. “Our vehicles can find their own safe paths”, Araki told Live Science.

“The most important meaning of our research is that vehicles that combine flying and driving have the potential to be both much more efficient and much more useful than vehicles that can only drive or only fly”, Araki said.

The scientists warned that automated flying taxis are likely not coming anytime soon. “Our current system of drones certainly isn’t powerful enough to actually carry people right now.” The scientists detailed their findings on June I at the Institute of Electrical and Electronics Engineers’ International Conference on Robotics and Automation in Singapore.

1. Which of the following is true about the research on flying vehicles?

A．It focuses on two- mode creatures.

B．It has made functional breakthroughs.

C．It will come to an end in vain.

D．It is based on the traditional concepts.

2. What’s the drawback of the “flying monkey”?

A．It could avoid obstacles.	B．It could both run and fly.
C．It knew how to catch things.	D．It followed the set routes.

3. What would be the best title for this text?

A．No More Flying Robots.

B．Let Go Of Flying Monkey.

C．Here Come Autonomous Flying Cars.

D．No Flying Taxi on The Way.

【推荐3】I’ve always been an optimist and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place.

For as long as I can remember, I’ve loved learning new things and solving problems. So when I sat down at a computer for the first time in seventh grade, I was hooked. It was a clunky old Teletype machine and it could barely do anything compared to the computers we have today. But it changed my life.

When my friend Paul Allen and I started Microsoft 30 years ago, we had a vision of “a computer on every desk and in every home,” which probably sounded a little too optimistic at a time when most computers were the size of refrigerators. But we believed that personal computers would change the world. And they have.

And after 30 years, I’m still as inspired by computers as I was back in seventh grade.

I believe that computers are the most incredible tool we can use to feed our curiosity and inventiveness—to help us solve problems that even the smartest people couldn’t solve on their own.

Computers have transformed how we learn, giving kids everywhere a window into all of the world’s knowledge. They’re helping us build communities around the things we care about and to stay close to the people who are important to us, no matter where they are.

Like my friend Warren Buffett, I feel particularly lucky to do something every day that I love to do. He calls it “tap-dancing to work.” My job at Microsoft is as challenging as ever, but what makes me “tap-dance to work” is when we show people something new, like a computer that can recognize your handwriting or your speech, or one that can store a lifetime’s worth of photos, and they say, “I didn’t know you could do that with a PC!”

But for all the cool things that a person can do with a PC, there are lots of other ways we can put our creativity and intelligence to work to improve our world. There are still far too many people in the world whose most basic needs go unmet. Every year, for example, millions of people die from diseases that are easy to prevent or treat in the developed world.

I believe that my own good fortune brings with it a responsibility to give back to the world. My wife, Melinda, and I have committed to improving health and education in a way that can help as many people as possible.

As a father, I believe that the death of a child in Africa is no less poignant or tragic than the death of a child anywhere else. And that it doesn’t take much to make an immense difference in these children’s lives.

I’m still very much an optimist, and I believe that progress on even the world’s toughest problems is possible—and it’s happening every day. We’re seeing new drugs for deadly diseases, new diagnostic tools, and new attention paid to the health problems in the developing world.

I’m excited by the possibilities I see for medicine, for education and, of course, for technology. And I believe that through our natural inventiveness, creativity and willingness to solve tough problems, we’re going to make some amazing achievements in all these areas in my lifetime.

Fueling our creativity

Outline	Supporting details
Being enthusiastic	1    , I believe the power of creativity and intelligence can make the world better. ◇An old Teletype machine, which made me     2     in the computer, changed my life. ◇    3     what sounded like crazy, Paul Allen and I dreamt of there being a computer for everyone. ◇For 3 decades, I still have a deep     4     for the computer.
Being devoted	I feel lucky to do something challenging at Microsoft, and I have a sense of    5     when we present people something new. ◇Computers are the most incredible tool, and there is no    6     in terms of problem solving. ◇Computers are transforming how we learn,    7    our horizons wherever we are.
Being     8	I’m bound to give my fortune to the world just in    9    . ◇All children are created equal, and it doesn’t take much to make a difference in their lives. ◇Great importance is being    10     to the health problems in developing countries.