Unit 4提升一练-2020-2021学年高一下学期英语人教版(2019)

Unit4 Space Exploration
Section C Discovering Useful
一、单句语法填空
1．You should do it ________ (regular)．
2．I limit myself ________ three cups of beer a day.
3．She attached a stamp ________ the envelope.
4．I provide him ________ all his rights.
5．So from the ________ (globe) perspective, it is very important.
6．He gave up without ________ (argue)．
7．We make decisions based on facts and ________ (analysis)．8．He was not employed ________ lack of previous experience.
9．I have been ________ (keen) looking forward to this visit.
10．Some people think that we shouldn't waste time ________ (explore) space.
11．Have you found a good solution ________ this problem?
12．They make great efforts to protect limited natural ________ (resource)．
二、阅读理解
A
China's famous space scientist Qian Xuesen, who is called the country's “father of space technology” and “king of rocket”， died of illness in Beijing at the age of 98.
In 1956, Qian's position paper on the country's defense and aviation (航空) industry, the central government set up an aviation industry committee, which later became the leading organization for China's missile (导弹) and aviation programs.
With the guidance of Qian, China has finished the blueprint on developing jet and rocket technology. He also played an important role in developing the country's first man­made satellite.
“Mr Qian used to hold academic seminars (学术研讨会) for us. We exchanged our scientific ideas and wrote articles together. The whole time when we worked with Mr Qian had a great influence on us，” Yu Jingyuan, a senior researcher said after hearing the news. In June 1964, China successfully created its first medium (中等的) and short­range missile, marking the start of the country's first missile defense system nuclear weapon.
During the man­made satellite project, when everyone else was not sure that the satellite would work perfectly in space, Qian looked up piles of documents and papers and wrote, “In my opinion, the satellite is done.” On April 24, 1970, “Dong ­fanghong­Ⅰ”， the country's first man­made satellite, was successfully launched.
These days, on the official BBS of the Shanghai Jiao Tong University, where Qian majored in machanic engineering from 1929 to 1934, many schoolmates still couldn't believe the news.
Many people regarded his death as “a superstar fell” and expressed their blessings for him—“Dear Mr Qian, rest in peace. We will never forget your achievements.”
1．Qian Xuesen was very famous for ________ during his life.
A．math B．chemistry
C．writing D．space technology
2．He played an important ________ in developing the country's first man­made satellite.
A．meeting B．role
C．leader D．place
3．China created its first medium and short­range missile ________.
A．in 1934 B．in 1956
C．in 1964 D．in 1970
4．During the man­made satellite project, everyone else was ________ that the satellite would work perfectly in space.
A．sure B．confident
C．thinking D．not confident
B
A new study suggests that dark markings on the planet Mars represent sand—not water. The research in 2015 suggested that lines on some Martian hills were evidence of water. Yet American scientists now say these lines appear more like dry, flows of sand. If water is present, it is likely to be a small amount. Water in liquid form would be necessary for microbial (微生
物的) life.
NASA, the American space agency, said more research is needed. Michael Meyer is the lead scientist for NASA's Mars exploration programme. He noted that the latest study does not reject the presence of water. But he admitted, “It just may not be as exciting as the idea of rivers going down the sides of cliffs (悬崖)．”
The new findings come from a team led by Colin Dundas of the United States Geological Survey. His team measured 151 of these lines in 10 areas. Most of the lines end with slopes between 28 degrees and 35 degrees. These measurements are similar to active sand dunes (沙丘) on both Mars and Earth. A small covering of dust that moves and sometimes becomes lighter might help explain the markings. They usually appear in the Martian summertime, and then disappear until the next year. If these lines are dry, this suggests that recent Mars has not had large volumes of liquid water. Dundas and his research team say that many questions remain.
“I still think that Mars has a great potential for having had life early on in its history，” Meyer said. “As long as that's true, we also have a reasonable possibility of life still being on Mars. It just happens to be cryptic or well hidden.”
NASA currently has no robotic vehicle—either on Mars or in development—with the ability to climb steep slopes. The lack of such equipment has engineers coming up with ideas like
Martian helicopters or planes without pilots.
5．What do American scientists find on Mars now according to their study?
A．A lot of little life. B．An amount of water.
C．Some Martian hills. D．Dark markings are sand.
6．When do the markings come out?
A．In Martian spring. B．In Martian summer.
C．In Martian autumn. D．In Martian winter.
7．What's Meyer's opinion about having life on Mars?
A．Doubtful. B．Trustful.
C．Indifferent. D．Objective.
8．What does the underlined word “cryptic” in Paragraph 4 mean?
A．Undiscovered. B．Strange.
C．Magical. D．Icy.
三、短文改错
Dream is a common word in our daily life.As we all know,people like to use it to express the strong desires they have for our future.Some young people dreamed of becoming scientists when others wish to become astronauts.
In my opinion,what matter most is that we should be responsible our society and its citizens.I want to be independent and have a strongly sense of responsibility.And also I want to be helpful to those in the trouble.Beside,I will
learn modestly from those devoted themselves to our society.I do hope all of us can make every efforts to live our dreams.
一、单句语法填空
1．regularly 2.to 3.to 4.with 5.global 6.argument 7．analyses8.for9.keenly10.exploring11.to
12.resources
二、阅读理解
1．D 细节理解题。

从第一段可知钱学森是因为航天技术而出名。

2．B 细节理解题。

从第三段最后一句可知他在创建中国第一颗人造卫星方面起了重要的作用。

3．C 细节理解题。

从第四段最后一句可知中国在1964年成功地制出第一枚中程、近程导弹。

4．D 细节理解题。

从第五段第一句可知大家对于人造卫星能否在太空中完美运行没有信心。

5.D 细节理解题。

根据第一段第一句可知，科学家发现火星上的黑色标记是沙子不是水。

故选D。

6.B 细节理解题。

根据第三段倒数第三句可知，这样的标记会出现在火星的夏季。

故选B。

7.B 观点态度题。

根据第四段内容可推知，Meyer还是相信火星上有生命。

故选B。

8.A 词义猜测题。

根据句中的or well hidden可知，cryptic 的意思是“隐藏的；没被发现的”。

故选A。

三、短文改错
第二句:our→their
第三句:dreamed→dream;when→while
第四句:matter→matters;在responsible后加for
第五句:strongly→strong
第六句:去掉the
第七句:Beside→Besides;devoted→devoting 第八句:efforts→effort。