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The science and technology undertaking of New China started almost from scratch. In 1956, the central government issued a great call for "advancing into science." Under the guidance of the "focus on development and catching up" policy, the country initially( 初 步 ) established a government-led science and technology system to break down the blockade and strenuous efforts have laid a solid foundation for the development of China's scientific and technological undertakings and injected a self-improving soul.

Preliminary layout of science and technology system

At the beginning of the founding of New China, the country was abolished( 百废俱兴) and the scientific and technological foundation was extremely weak, and it needed to be improved. In 1949, represented by the establishment of the Chinese Academy of Sciences, various regions and departments began to set up a number of scientific research institutions.In 1956, the new for the first time in Chinese history, the National Science and Technology Conference was convened, and the country's first long-term science and technology development plan, the National Science and Technology Development Prospects Plan 1956-1967, was devoted to research and deployment of science and technology development issues, and formulated a number of major technologies that were urgently needed at the time. The mission became the first milestone in the history of China's scientific and technological development. Prior to the "Cultural Revolution", national scientific research institutions had increased from more than 30 at the beginning of the founding of the People's Republic of China to more than 1,700, and the number of professionals dedicated to scientific research had increased from less than 500 to 120,000 .It has initially formed a scientific and technological system consisting of the Chinese Academy of Sciences, universities, industrial departments, local scientific research units and national defense departments.

The impact of hard work is profound(深远的)

The establishment of new China has inspired a large number of overseas students to report their national ambitions. Overseas experts and scholars represented by Qian Xuesen, Hua  Luogeng,  Zhu Guangya, etc. broke all difficulties and obstacles(障碍), embraced their deep feelings for the motherland, and returned to China to work for the technology of New China. He has made outstanding contributions to career development. By 1957, more than 3,000 overseas scholars returned home, accounting for more than half of all overseas students and scholars before the founding of the People's Republic of China. Most of them became science in various(各种各样的) fields of New China. The founder or pioneer of technological development, in the era of  enthusiasm and burning, led scientific researchers across the country to work independently and arduously under extremely difficult conditions, creating a series of world-renowned scientific and technological miracles, and left precious for future generations.

The first achievements to inspire(振奋) the country

In this period, under the national system of focusing on major events, a number of major scientific and technological achievements that catch up with the world level quickly emerged. In 1958, China's first electron tube computer was successfully trial-produced. Subsequently, semiconductor triodes and diodes were successively developed; 1959 In 1995, Li Siguang and others proposed  the theory of "land-phase oil", which broke the Western scholars' theory of "lean oil in China"; in 1960, Wang Xichang and others discovered anti-sigma negative supersonons; in 1964, the first atomic bomb device exploded successfully. A self-designed and manufactured carrier rocket was successfully launched; in 1965, the first artificial synthesis of bovine insulin in the world; in 1967, the first hydrogen bomb was successfully air-blasted; in 1970, the "Dongfanghong-1" artificial earth satellite was successfully launched; in the 70s In the early days, Chen Jingrun proved Goldbach's "1 + 2" conjecture ... these important achievements under extremely difficult conditions have written a strong mark in the history of China's scientific and technological development.

——Adapted from CCTV and Taiwan Straits Network

1.What has laid a solid foundation for the development of science and technology in our country?

A.The founding of New China.

B.Direct help from the central.

C.A government-led and laid-out science and technology system.

D.The great call of the spirit of all the Chinese people.

2.When did New China initially form scientific and technological system consisting of the Chinese Academy of Sciences, universities, industrial departments, local scientific research units and national defense departments?

A.Before the founding of New China

B.After the reform and opening up

C.Before the Cultural Revolution

D.During the New Period of Xi Jinping's Socialism with Chinese Characteristics

3.Why did Qian Xuesen and other overseas experts and scholars return to the country?

A.The establishment of the new China inspired their hearts to serve the country.

B.They have broken through all the difficulties and obstacles overseas.

C.Their excellent ability has been recognized by New China.

D.New China had created a series of remarkable technological miracles.

4.Which of the following was not the result achieved in the 1960s?

A.The first electronic tube computer was successfully manufactured.

B.The first atomic bomb device exploded successfully.

C.The first synthetic bovine insulin in the world.

D.The first hydrogen bomb exploded successfully.

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