Section Grammar & Writing定语从句定语从句()第一板块单元语法第一板块单元语法when to whom for which where when when where in which that/which when that/which why where which/that which whom on with from why/for which when which whom which whenwhom where that/which them whichwhere whowhom whythat/which themwhom whichwhen why he could not go there when many things are done where/in which he grew up (that/in which) you speak to your parents who I came across 人物介绍人物介绍第二板块单元写作第二板块单元写作体裁记叙文时态介绍已故人物的时态应以一般过去时为主主题 人物介绍 人称第三人称结构1.介绍钱学森的个人生平；2介绍钱学森的经历、事迹和成就；3对钱学森的评价。He was born in 1911 in Shanghai In 1935, Qian went to America for further study and was highly thought of by Von Karman because of his great achievementsIn 1938, he obtained his doctors degree in aerospace scienceand mathematics in the US.In 1950, he heard New China had been founded and succeeded in coming back to his homeland in 1955 though the American government tried to stop himSince 1958 he had been devoted to aerospace science and contributed a lot to the cause of Chinas aerospace He was regarded as the father of Chinas space program In 2009, he passed away in Beijing Qian Xuesen, regarded as the father of Chinas space program, was born in 1911 in Shanghai. In 1935, Qian went to America for further study and was highly thought of by Von Karman because of his great achievements, who obtained his doctors degree in aerospace science and mathematics in the US in 1938