题目内容
6.The"space race"took place between the United States and the former Soviet Union.Both countries competed to see which would be the first (31)to land (land) a person on the Moon.Early space ventures were limited to satellites that orbited the planet Earth.The Soviets launched the world's first satellite on October 4,1957; Sputnik I orbited Earth more than a thousand times(32)before it plunged back into the planet's atmosphere and burned up.The United States'first satellite was Explorer 1,launched the following January.
In 1959,both the United States and the Soviet Union succeeded in achieving their goal of sending spacecraft called probes beyond Earth's gravitational pull.The Soviet Luna 1,Launched on January 2,passed the Moon and (33)continued(continue) through space.Two months later,the United States launched Pioneer 4,which followed the same path as Luna.(34)Botheventually entered orbit around the Sun.
The first person in space was Soviet cosmonaut Yuri Gagarin.He orbited Earth in Vostok 1on April 12,1961.(35)To catch (catch) up with Soviet Union in the race,the United States sent Alan Shepard into space in Freedom 7on May 5,1961.The following February,John Glenn became the first American to orbit Earth.
Over the next seven years,both the Americans and the Soviets sent many astronauts into space.The most famous was U.S.astronaut Neil Armstrong.(36)who,on July 20,1969,because the first human to set foot on the Moon.The United States Apollo program lasted (37)until 1972; its missions carried out extensive research of the lunar surface and even brought back samples of moon rocks.
Also,in the history of space exploration men and women have been seen living on space stations,As for the U.S.,(38)sending (send) the first such station into space in Soviet Union in 1971made it eager to have its own.Then,the first U.S.space station,skylab,(39)was launched(launch) in May 1973and orbited for six years.Since the 1960s,both countries also have sent spacecraft to explore almost all the planets in the solar system.Atmospheric probes,surface landings,and flybys(近天体探测飞行)have produced photographs if and information about the surfaces,moons,and atmospheres of many planets.However,(40)not having set(not set) foot on any other planet before,astronauts as well as scientists are still devoted to space programs.
分析 短文主要介绍了苏维埃和美国在发射卫星到太空之间的竞争.
解答 31.to land,考查动词不定式,位于序数词后应使用动词不定式充当后置定语,故答案为to land.
32.before,考查连词,根据语境"第一颗人造卫星在进入大气层之前环绕地球一千多次",可知使用连词before.
33.continued,考查谓语动词,and连接两个并列谓语,前使用一般过去时,故答案为一般过去时的continued.
34.Both,考查代词,此处应使用表示两者都的both指代前文提到的 Luna 1 和 Pioneer 4.
35.To catch,考查动词不定式,此处充当目的状语,应使用动词不定式to catch.
36.who,考查定语从句引导词,先行词指人,因此引导非限制性定语从句应使用who.
37.until,考查介词,根据语境指的是"直到1972年",因此使用介词until.
38.sending,考查动名词,此空作为主语,应使用动名词sending.
39.was launched,考查谓语动词,句子有表示过去的时间,因此使用一般过去时,launch与其主语构成被动的关系,因此使用被动语态be done的形式.
40.not having set,考查非谓语,set foot on any other planet动作发生在devoted to space programs之前,因此使用having done的形式,其否定为not having set.
点评 对于语法填空这类题,一是懂得分析句子结构,二是知道充当各个句子成分的词类或词性,从语法上确定答案,当然,对于某些固定搭配也要牢记,在平时的学习中要多积累这些词汇或短语,对于句子使用的时态语态也要通过语境进行确定.
A. | relief | B. | general | C. | silence | D. | total |
A. | Improving | B. | To improve | C. | Having improved | D. | Improved |
A. | succeeded | B. | tried | C. | managed | D. | thought |
A. | turned out | B. | found out | C. | given out | D. | carried out |