2 . Stephen Hawking not only changed the way people thought about science, but he also changed the way people viewed ________. Diagnosed (诊断) with motor neurone disease in his twenties, many of his scientific discoveries were made while his body was ________.

When Hawking studied at Oxford University, he had a ________ for being lively, humorous and popular. ________, during his final year at Oxford, he fell over for no particular reason. When noticing his speech (说话的能力) began to be ________, Hawking sought medical help. It was then that he was diagnosed with the disease. Doctors at the time gave him less than two years to ________.

Luckily, he survived. However, after his diagnosis, his ________ failed quickly. Throughout the 1960s, he required a stick to walk, ________ a wheelchair for many years. It was only by the end of the 1960s that he ________ accepted he would need a full-time mobility aid (助动器).

Despite Hawking’s poor health, he made some important scientific ________. It was in 1974 that he discovered what now is ________ as “Hawking radiation”. Later, in 1988, Hawking published his book A Brief History of Time.

It was his ________— focusing on what was possible rather than impossible — that defined (定义) his public image. His books made science easily ________ for a wider public. Hawking once said, "My advice to other people would be: ________ things your disability doesn’t prevent you from doing well, and don’t ________ the things it interferes (干扰) with. Don’ t be disabled in spirit, as well as physically.”

Tu Youyou has become the first Chinese scientist     1     (award) a Nobel Prize for her discovery of qinghaosu,     2     makes malaria patients across the world more likely to survive.

After studying medicine at university, Tu acquired     3     good knowledge of both traditional Chinese medicine and Western medicine through further training courses, which led to her success in her discovery of qinghaosu.     4     (face) with the serious situation of malaria, as the head of a team intended to find a cure for the disease, Tu and her team referred to the ancient books of traditional Chinese medicine, and tried countless times to make extract from different herbs     5     they managed to make qinghao extract that could treat malaria in mice. However, due to the     6     (short) of research resources and good equipment, it was hard to produce enough qinghao extract for large trials. Tu and her team didn’t give up. They tried almost all means to solve the problems they faced. Fortunately, their efforts finally paid     7    . They     8     (success) in isolating the most effective part of the extract and named it qinghaosu, which is now a key part of many malaria medicines.

When     9     (give) her Nobel Lecture, Tu encouraged scientists to further explore the treasure house of traditional Chinese medicine and raise it to a     10     (high) level.

Seeing there were so many farmers struggled to feed themselves, the scientist decide to devote his life to helping keep the world free of hunger. Since then, he has been leading happy life, though many people can’t understand his behavior.

He always works on the farm, chatting with the farmer, which it can account of his sunburnt face. He as well as his team was awarding many honors. Besides, they are not satisfying with the present achievements. They hold the belief which the more they devote, the few pepole go hungry.

Known as the "father of hybrid rice"，Yuan Longping is one of China's     1    （famous） scientists，who considers himself a farmer     2     his fame and influence.     3    （tackle）the crisis of food     4     （short），he attended Southwest Agricultural College and made up his mind to study agriculture. Then as a researcher，he was devoted to finding     5     approach to boosting yields without expanding the area of land.     6     （overcome）enormous difficulties，he developed the first hybrid rice in the world that could be used for farming in 1974，which made     7     possible for farmers to expand their output     8     （great）. Not only has his innovation helped to feed China，but it     9    （alleviate） hunger in other countries depending on rice like India and Vietnam. Given his great contribution，he has received numerous awards both in China and abroad. In spite of being wealthy，he cares little for celebrity or money and makes large donations to support agricultural research. Old     10     he is，he is still working hard to fulfill his dream.