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时态填空
1. The conference (last) a full week by the time it ends.
2. The first use of atomic weapons was in 1945, and their power (increase) enormously ever since.
3. I will not be able to come to your reception as we (have) our weekly meeting this time tomorrow.
4. He kept looking at her, wondering whether he (see) her somewhere before.
5. Rather than __________ (work) for the mean boss, he prefers to start his own business.
6. He leaves for work very early in the morning to avoid __________ (catch) in the traffic jams.
7. Frank had learned English for 12 years by the time he __________ (graduate) from senior high school.
8. Simon __________ (walk) along the noisy street when he came across one of his closest friends the other day.
9. It is the second time that Debby __________ (not finish) her homework in time.
10. Please ensure that all the windows ___________ (shut) before you leave in case it rains.
查看习题详情和答案>>2. I am good at gardening. It can be _____ (satisfy) to work in the garden.
3. He was told that after he _____ (graduate), he _____ (employ) by a famous firm.
4. By the time the player left Beijing, he _____ (receive) over 1000 letters of congratulation
from many parts of China.
5. With more and more new drugs _____ (develop), the doctors don't find it difficult to treat patients.
用动词的适当形式填空
He will have learned English for eight years by the time he _____ (graduate) from the university next year.
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He will have learned English for eight years by the time he ________ (graduate) from the university next year.
查看习题详情和答案>>1
October 31, 2009, California
Tsien Hsue-shen, PhD'39, one of the founders of the Jet Propulsion Laboratory, died on October 31, He was 98.
Tsien, born in the eastern Chinese city of Hangzhou, graduated from the National Qinghua University in 1934 and in August of 1935 he left China to study at the Massachusetts Institute Technology. In 1936 he went to the California Institute of Technology to commence graduate studies .Tsien obtained his doctor degree in 1939 and would remain at Caltech for 20 years, becoming the Goddard Professor and establishing a reputation as one of the leading rocket scientists in the United States.
In 1943, Tsien and two others in the Caltech rocketry group drafted the first document to use the name Jet Propulsion Laboratory. During the Second World War, he was amongst the other scientists participated the "Manhattan Project" .After World War II he served as a consultant to the United States Army Air Force. During this time, Conlonel Tsien worked on designing an intercontinental space plane. His work would inspire the X--20Dyna-Soar which would later be the inspiration for the Space Shuttle. In1945 Tsien Hsue--shen married Jiang Ying, the daughter of Jiang Baili--one of the Chinese nationalist leader Chiang Kai--shen's leading military strategists. But in 1950, the Chinese-born scientist was accused of harboring Communist sympathies and stripped of his security clearance.
In September 1955 he was permitted to leave for China, where Tsien resumed his research, founded the Institute of Mechanics, and went on to become the father of China's missile program, a trusted member of the government and Party's inner circle, and the nation's most honored scientist, Tsien retired in 1991 and has maintained a low public profile in Beijing, China. The PRC government launched its manned space program in 1992 and used Tsien's research as the basis for the Long March rocket which successfully launched the Shenzhou V mission in October of 2003.The elderly Tsien was able to watch China's first manned space mission on television from his hospital bed.
In his late years, since the 1980s, Tsien devoted himself to spirituality research, and advocated scientific investigation of traditional Chinese medicine, Qigong and "special human body functions".
【小题1】 The underlined word "commence" in this passage probably means ____
A. make up B. get C. begin D. promise
【小题2】 Tsien Hsue--shen got married at the age of ______
A.45 B.28 C. 24 D.34
【小题3】 What is the right order of the events related to Tsien Hsue--shen ?
a. his later life
b. return to China
c. career in the U.S.A
d. his early life and education
A. a-b-c-d B. d-c-b-a C. d-b-c-a D. c-b-d-a
【小题4】 Which of the following statements is NOT true?
A. Tsien Hsue--shen got a doctor's degree in 1939.
B. Tsien Hsue--shen married Jiang Ying, the daughter of Chinese nationalist leader Chiang Kai-shen.
C. Tsien Hsue-shen has made a contribution to the Space Shuttle.
D. Tsien Hsue-shen was interested in traditional Chinese medicine, qigong and "special human body functions" in his later life.
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