【推荐1】阅读下面的材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Tu Youyou,     1    was born in 1930, is a Chinese medical scientist and educator. She was educated and carried out research     2    (entire) in China. She is best known    3    discovering artemisinin(青蒿素) and dihydroartemisinin(双氢青蒿素)，which saved millions of lives. Her discovery of artemisinin as well as    4    (it) treatment of malaria     5    (regard) as a significant breakthrough of tropical(热带的) medicine in the 20^th century and health     6    (improve) for people of tropical     7    (develop) countries in South Asia, Africa, and South America.
For her work, Tu received the 2011 Lasker Award in clinical medicine and     8    2015 Nobel Prize in Physiology(生理学) or Medicine together with William C. Campbell and Satoshi Omura. Tu is the first Chinese Nobel winner in Physiology or medicine     9    the first citizen of the People’s Republic of China    10    (receive) the Nobel Prize in natural sciences.

【推荐2】Alexander Graham Bell was an influential scientist, engineer and     1    (invent). He was born on March 3, 1847 in Edinburgh, Scotland. He is widely credited with the invention of the first telephone. Bell’s mother and wife    2    (be) both deaf, which had an effect    3    his work.

When he was 23, Bell and his parents moved to Canada. Bell studied the human voice and worked with different schools for    4    deaf. He experimented with sound, working with sound, working with equipment used to send different    5    (message) and record sound. He worked on acoustic telegraphy (声报机) with an electrical designer       6    (name) Thomas Watson.

On February 14, 1876, Bell and Elisha Gray, an American electrical engineer, both filed patents (申请专利) covering the transmission (传送) of sounds telegraphically. Finally, Bell    7    (give) the patent. A few days       8    (late), he succeeded in    9    (get) his telephone to work.

Bell improved the design and by 1886 more than 150,000 people owned telephones in the United States. He once said, “The day will come when the man at the telephone will be able to see the distant person to     10    he is speaking.”

【推荐3】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Raised in an era of war and famine (饥荒), Yuan Longping witnessed the despair of people who lost the land     1     they lived. He began researching hybrid rice in1964,     2     (succeed) in cultivating the world's first high - yielding (高产的) hybrid rice strain (品种) in 1973. He continued to work in this field and made new breakthroughs. In 2017,     3     average output of hybrid rice per hectare (公顷) in China reached 7. 5 tons.

More importantly, he was selfless when it came to sharing his research to benefit people     4     (global). Up to now, his hybrid rice strain     5     (plant) in large areas of India, Bangladesh, Indonesia, the US and Brazil. Using research and trials at his national center, Yuan continued to produce increasingly higher-yielding super-hybrid plants, with panicles (穗型) so full of grain     6     they bent, giving the appearance of a “waterfall of rice”.     7     (observe) his plants closely, Yuan spent     8     (many) time in a field than in an office, just as farmers did. People said the scientist maintained a “down - to - earth” attitude.

Yuan could make such     9     (achievement) partly because he believed in the power of science     10     an agricultural pioneer.