John B. Goodenough, an engineering professor from the University of Texas at Austin, has been awarded the 2019 Nobel Prize in Chemistry-jointly with M. Stanley Whittingham, a chemistry professor from the State University of New York and Japan’s Akira Yoshino, a professor of Meijo University-for the development of lithium-ion batteries (锂电池). According to the Nobel Committee, the three scientists “have created the right conditions for a wireless and fossil fuel-free society, and so brought the greatest benefit to humankind”.

Goodenough, born in 1922, identified and developed the key materials that can power portable electronics, leading to the wireless revolution. Today, batteries containing Goodenough’s innovations are used worldwide for mobile phones, power tools, laptops, tablets and other wireless devices, as well as electric vehicles.

Goodenough received a bachelor’s degree in mathematics from Yale University and a doctorate in physics from the university of Chicago. He beat the odds against him, first overcoming dyslexia (阅读困难症) as a child, and then the claim of a teacher who told the doctoral student in his 20s that he had started too late to be successful in physics.

He began his career in 1952 at the Massachusetts Institute of Technology’s Lincoln Laboratory, where he laid the groundwork for the development of random-access memory (RAM) for the digital computer. After MIT, Goodenough became a professor and head of the Inorganic Chemistry Laboratory at the University of Oxford where in 1979 he discovered it would be possible to store energy in rechargeable batteries through lithium cobalt oxide (锂钴氧化物).That discovery helped develop the lithium-ion battery. Goodenough joined the University of Texas at Austin in 1986, where his groundbreaking work continued.

At 97 years old, he still continues to push the boundaries of materials science. Despite the lithium-ion battery being well developed and available as a commercial product, it has its limitations. It can’t be charged too fast or overcharged. Goodenough still wants to see some new developments.

“I hope Ut-Austin still keeps me employed,” Goodenough once joked.

Helen Keller was born on June 27，1880.

   Pablo Picasso was born in Malaga，Spain in 1881.When he died in 1973，he was ninety-one years old. But he still took up his paints and brushes to start a new picture as if he were seeing things for the first time，which is why we have called him the youngest painter. Young people are always trying new things and new ways of doing things. They don't hesitate to attempt one thing after another. Eager to experiment, they welcome new ideas.

When he was over ninety this great painter still lived his life like a young man. He was still restlessly looking new ideas and new ways to use his artistic materials. No one knew what to expect from him next. No one could be sure what kind of picture he would produce. If he had painted a picture of you, it might have looked exactly like you. Or it might have been all lines, squares, circles and strange-colored shapes. It might not have looked like human at all.

At such times Picasso was trying to paint what he saw with his mind as well as with his eyes. He put in the side of the face as well as the front. He may have painted it flat, as though it had no depth. Sometimes he seemed to paint just as a child painted, simply for his own pleasure. He didn't imitate others.

Most painters discover a style of painting that suits themselves and stick to that, especially if people admire their pictures. But Picasso was like a man who had not yet found his own particular style of painting. He was still struggling to find perfect expression for his own uneasy spirit.

The first thing one noticed about him was the look of his large, wide-open eyes. Gertrude Stein, a famous American writer who knew him in his youth, mentioned this hungry look, and one can still see it in pictures of him today.

Picasso painted a picture of Gertrude Stein in 1906. She visited the painter's studio eighty or ninety times while he painted her picture. While Picasso painted they talked about everything in the world that interested them. Then one day Picasso wiped out the painted head on which he had worked for so long. "When I look at you I can't see you any more!" he said.

Picasso went away for the summer. When he returned he went at once to the unfinished picture in the corner of his studio. Quickly he finished the face from memory. He could see the woman's face more clearly in his mind than he could see it when she sat in the studio in front of him.

Picasso was often attacked for this new, sometimes frightening style. It produced pictures like some of our worst dreams. The camera has made it unnecessary for painters to make exact representations of what they see. A camera can reflect real life more exactly. What great paintings give us is a view of life through one man's eyes, and every man's view is different.

   Clara Barton,founder of the American Red Cross , gained worldwide honour for her devotion to easing human suffering and earned the nickname“Angel of the Battlefield”.

Barton was born into a freethinking family in 1821. Her elder brothers and sisters happily educated her in math and reading, so when she entered school at three years old, she could read and spell three-syllable words. 【小题1】

Concerned about Barton's difficulty in making friends, her parents sent her to a boarding school,hoping it would make her more comfortable with her peers. 【小题2】 Barton lost her appetite（食欲）and cried constantly. After only one term, she had to be brought home. Then, Barton stayed out of school to nurse her brother through a serious injury and also volunteered to care for poor families during a smallpox （天花）outbreak.

In 1861, the Civil War broke out. The sight of wounded soldiers touched Barton deeply. She began to collect and give away food , bandages, medicines, and other supplies to the Union Army.

 【小题3】 There, with little concern for her own safety, she cooked meals, assisted surgeons, and comforted wounded soldiers.

Eventually, because of working too hard , Barton broke down finally. 【小题4】 It was there that she learned of an organization based in Switzerland called the International Committee of the Red Cross , whose work mirrored her own.

Shortly after Barton arrived back home in 1873,her sister died. 【小题5】 When recuperating（康复）at a health facility in New York, she began planning for the establishment of an American wing of the International Committee of the Red Cross. Although at first the government opposed it, her efforts finally paid off. The American Red Cross was officially organized on May 21, 1881. Her influence lives on today in the work of the organization she founded.