题目

最早记述右图所示地貌特征的是 A．徐霞客    B．宋应星     C．郦道元    D．沈括 答案：A 解析: 徐霞客的《徐霞客游记》对石灰岩溶蚀地貌作了记述。China in the 21st century is making great progress in space technology. In 2003, the country sent up the manned spacecraft Shenzhou-V. Four years later, Chang’e-I went into orbit (轨道) around the moon. In 2008 a Chinese man did the country’s first spacewalk.These achievements would have been unthinkable without the contribution of Qian Xuesen, a key scientist on space programs and rocketry (火箭技术) of the People’s Republic of China. This pioneering scientist passed away in Beijing on October 31 in 2009 at the age of 98.Once called “the father of our space industry”, Qian began working on China’s missile and space technology in 1956, when China had little technology. When asked by General Chen Geng whether the Chinese could develop their own missiles, Qian said Chinese could do anything that foreigners could. His research helped lead to the explosion of China’s first atomic bomb (原子弹) in1964, as well as to its first man-made satellite in 1970 and its first manned spacecraft in 2003.Qian was born in Shanghai. He graduated from  Shanghai Jiaotong University in 1934.Then he studied in the US at the Massachusetts Institute of Technology and later at the California Institute of Technology. During World WarⅡ, Qian’s research contributed to the development of rocket technology that the US military (军队) began using in the 1940s. He was once prevented from leaving the country because it was decided that he knew too much about certain military matters. It was not until in 1955 that Qian returned to China with the help of the late premier Zhou Enlai. “I plan to do my best to help the Chinese build a nation where they can live with dignity (尊严) and happiness, ” Qian told reporters before sailing for China in 1955. The great scientist devoted all his life to keeping the promise1.What is the article mainly about?A.It gives a short history of Chinese missile and space programsB.It is about how Qian contributed to the Chinese space programC.It lists important events that Qian experiencedD.It is a brief introduction to Qian, a famous Chinese scientist2.Which statement about Qian is TRUE?A.He was born in China and brought up in AmericaB.He went to America for further study after graduation from universityC.He returned to his hometown right after finishing his educationD.He had worked on missiles in the US military before coming back to China3.Qian was personally involved in many historic events in China EXCEPT       .A.the first spacewalkB.the first man-made satelliteC.the development of missilesD.the explosion of an atomic bomb4.From the article, we can conclude that       A.the US military had hoped to take full advantage of Qian’s talentB.Qian had an important position in the US military in the 1940sC.when World War broke out, Qian was studying at Shanghai Jiaotong UniversityD.it was not easy to get Qian back from the US