On Tuesday, Yuan Longping, a scientist at the Chinese Academy of Sciences【小题2】leads the nation's research in hybrid rice, proudly announced a record production of 1,500kilograms per mu (0.067 hectares).【小题3】(compare) with other high-yield hybrid varieties in the market, the average yield for the third-generation strain is 10 to 20 percent higher, The 90-year-old scientist was rejoicing like a child while making the announcement at a news conference, saying "I am more than excited and【小题4】(extreme) satisfied with the results. The results are of【小题5】 (significant) to not only China, but the entire world. Yuan's achievement is a major contribution to【小题6】global fight against hunger. For China, more rice production means greater food security. The achievement would not have been possible 【小题7】Yuan and his team. Since the 1960s, Yuan, then a fresh university graduate, has devoted himself wholly to research on hybrid rice. In the last 60 years, he【小题8】(teach) generations of students. Yuan said he still has a clear mind and hopes to work【小题9】he turns 100. There are lots of scientists like Yuan in every field,【小题10】China is to enjoy its long- term prosperity.

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。

Chinese scientists have achieved a record rice yield of almost 23 metric tons per hectare from an 【小题1】 (experiment) field of hybrid rice in Hunan Province.

On Tuesday, Yuan Longping, a scientist at the Chinese Academy of Sciences【小题2】leads the nation's research in hybrid rice, proudly announced a record production of 1,500kilograms per mu (0.067 hectares).【小题3】(compare) with other high-yield hybrid varieties in the market, the average yield for the third-generation strain is 10 to 20 percent higher, The 90-year-old scientist was rejoicing like a child while making the announcement at a news conference, saying "I am more than excited and【小题4】(extreme) satisfied with the results. The results are of【小题5】 (significant) to not only China, but the entire world. Yuan's achievement is a major contribution to【小题6】global fight against hunger.

For China, more rice production means greater food security. The achievement would not have been possible 【小题7】Yuan and his team. Since the 1960s, Yuan, then a fresh university graduate, has devoted himself wholly to research on hybrid rice. In the last 60 years, he【小题8】(teach) generations of students.

Yuan said he still has a clear mind and hopes to work【小题9】he turns 100. There are lots of scientists like Yuan in every field,【小题10】China is to enjoy its long- term prosperity.

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