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1、2022-2023学年北京市大兴区高一（下）期末英语试卷一、阅读理解（本大题共14小题，共28.0分）AOn September 7；1930，Yuan Longping was born in Beijing.Fluent in English，his mother often read Friedrich Nietzsches works to him.Influenced by his mother，Yuan Longping liked English，geography and chemistry at school.After graduating from university，

2、he became a teacher in the countryside of Hunan in 1953. With lots of crop failures，nationwide hunger hit China in the 1960s，making many people live a bad life.Yuan was sad and felt he must do something.Since the climate in Hunan was not friendly to growing wheat，he decided to devote himself to stud

3、ying how to increase the production of rice，a basic food for over 60 percent of Chinese people：From then on，he began a lifelong connection with rice. Yuan Longping succeeded in growing the worlds first high production hybrid rice（杂交水稻）variety.in 1973，which could reach a yield of over 500 kg per more

4、 than 200 kg than before.For the next four decades，he continued to work on the research of hybrid rice.In 2020，hybrid rice developed by his team achieved 1，500 kg per mu in two growing seasons，a new world record. Nowadays，the hybrid rice is grown in almost half of Chinas rice fields and its producti

5、on accounts for 60 percent of the total rice production in China.The hybrid rice production is 20 percent more than the common kinds，the yearly increase of which feeds up to nearly 100 million people. In 2019，Yuan Longping，known as the Father of hybrid rice，was awarded Medal of the Republic，Chinas h

6、ighest honor. Yuan Longpings biggest dream in life was to develop more hybrid rice varieties，which could be grown all over the world to help solve the global food problem.So far，the hybrid varieties he developed have been grown in over 40 countries，including the USA，Brazil and India.1. What do we know about Yuan Longping according to the text？ _ A. He began to study hybrid rice in 1973.B. He received the highest honor in China at 90.C. He ever taught math

1.生物体的形态、结构与功能相适应。下列表述中正确的是A.叶绿体——类囊体——为催化暗反应的酶提供附着位点B.高尔基体——产生大量分泌小泡——蛋白质的合成C.细胞质基质——含多种酶的溶胶——细胞代谢的主要场所D.核膜——其上有核孔——控制DNA和蛋白质进出细胞核

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