5 . There are many famous scientists in the world, some of whom are very young. Here are four hot young scientists working right now to change the world.

Rizia Bardhan

Rizia Bardhan is 29 and a post doctor at Lawrence Berkeley National Lab. Her research mainly deals with amazing possibilities of micro robots that can be used to cure diseases which are now untreatable. In an interview, she said that when she thought of science, she would think of major problems that she could help to solve.

Heather Knight

Heather Knight, the 28-year-old Chief Executive of the Marilyn Monrobot company, is performing new applications for robotics by casting her shows with robots. She considers humor to be one of the most important human features. Therefore, if she can teach humor to robots, they will be able to better connect with humans.

Imre Bartos

Imre Bartos is a 29-year-old Columbia University graduate student. As one of the young minds, he is remarkable enough to drive others crazy with envy. He studies everything from the formation of black holes to the physics of how mosquito eyes see the world. In the paper Hunting Black Holes with a Gas Cloud, he explains that a gas cloud meeting a black hole in its path will be partially eaten by the black hole. His task is to check the X-rays that are given off during the process.

Jeremy England

Jeremy England is a 36-year-old professor at MIT, a school that is known for its young genius. He is working right now on new ideas about the physics behind basic biology. He says that he wants to make sense of life at the molecular(分子) level.

6 . The national outpouring of grief(悲痛) at the death of two legendary academicians(院士)over the weekend, as if people had lost beloved members of their own families, offers much food for thought.

At 1:02 pm on May 22nd, 2021, liver surgeon Wu Mengchao, 99, died in Shanghai. He is known as the founder of hepatobiliary surgery(肝胆外科) in the country and was the teacher of roughly 80 percent of the nation's experts and doctors specializing in liver surgery today. Wu operated on thousands of patients, and saved at least 16,000 lives. Five minutes later in Changsha, Hunan province, agricultural scientist Yuan Longping died at the age of 91. He was known as the father of hybrid rice who helped lift the nation out of hunger.

With their dedication to science and commitment to the people, the two devoted their lives to saving lives and improving people's livelihoods. Together with generations of their students, they not only made a big difference to the lives of the Chinese people, but also many living in other developing and least-developed countries.

Wu insisted that medical science is humanity while Yuan's lifelong dream was always to enable the Chinese people to fill their own bowls with rice. What makes Wu and Yuan great is not only their achievements, but also their shared attachment to the people. The public's spontaneous(自发的) outpouring of grief at their deaths, which has been rare in the country for decades, shows how much their down-to-earth dedication to improving people's lives touched hearts throughout the country.

Yuan and Wu are just two representatives of the large numbers of scientific workers that have devoted their lives to their research, giving the country's people-centered development principle with more practical meaning. The country needs more scientists to inherit and carry forward their spirit. Even those in other walks of life can draw inspiration from the two academicians' commitment to their dreams, care for the people, and unconcern about material enjoyment, so as to make the best of what life grants for themselves and others.

Yuan Longping, known as the “father of hybridrice”, is one of China’s most famous scientists, Yet, he considers himself a farmer because he continually works the land in his research. Indeed, his slim but strong body is just like that of miliions of Chinese farmers, to whom he has     1     his life.

Yuan Longping was born in 1930 in Beijing. His parents wanted him to pursue a career in science or medicine. However, what concerned him most was that farmers often had poor harvests and somnetimes even had a serious    2     of food to eat. To tackle this     3     , he chose to study agriculture and received aneducationat Seuthwest Agricultural College in Chomgqing.

After     4    in 1953, he worked as a researcher. Yuan Longping realised that larger fields were not the solution. Instead, farmers needed to     5     yields in the fields they had. How this could be done was a challenging question at the time.Yuan was     6    that the answer could be found in the creation of hybrid rice. A hybrid is a cross between two or more varieties of a species One characteristic of hybrids is that they usually attain a higher yield than    7    crops.

However, whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.The common     8    then was that it could not be done. Through intense effort, Yuan    9    enormous technical difficulties to develop the first hybrid rice that codld be used for farming in 1974. This hybrid enabled farmers to expand their    10    greatly

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The person I respect

There are many respectable people around us. As for me, Marie Curie was the person I respect most. It is general acknowledged that Marie Curie is one of the greatest scientist in the world. Her discoveries are crucial to the later scientific research.

Marie Curie was interesting in science when she was young. After she graduated from university, she committed himself to her work with the objective of serve the whole society. Marie and her husband found the element radium, for that they were awarded the Nobel Prize. Not only was Marie the first female professor at the University of Paris, but she was also the first scientist win two Nobel Prizes in the world.

Madam Curie was intelligent, brave, strong-willed but never gave up. To sum up, she is a person I respect her most.