The world’s largest radio telescope was finished on Sept. 25, 2017 in China.
FAST is a five-hundred-meter telescope. It is also called Tian-yan ("The Eye of Heaven"), with a dish the sire of 30 football grounds, deep in the mountains of southwest China's Guizhou Province. The giant dish is built on a howl-like valley.
The surrounding area has "radio silence" as there are no towns and cities within a 5-kilometer radius(半径范围) and only one county center within 25 kilometers.
FAST is made up of 4,450 panels(面板). The second largest radio telescope is in Russia. The bigger dish will be able to pick up weaker signals (信号).
The radio telescope is like an ear, listening to tell meaningful radio messages from white noise in the universe. With the help of the telescope, we can receive weaker and more radio messages far away in space. It will help us to search for intelligent life outside of the Galaxy(银河系) and explore the origins(起源)of the universe. "Any of its discoveries will lead to a Nobel Prize," said Joseph Taylor, a Noble Prize winner.
The FAST project began in 2011. And the telescope is expected to remain the global leader for the next 10 to 20 years.
1.Where was FAST developed?
A.In China. B.In Russia. C.In America.
2.The underlined word "giant" probably means "___________" in Chinese.
A.神秘的 B.巨大的 C.宽广的
3.FAST is used to __________________.
A.explore the origins of human beings
B.receive distant radio messages from the universe
C.watch the beautiful scenery of the Galaxy
4.From the passage, we can know that __________________.
A.FAST is the largest radio telescope all over the world so far
B.Noisy towns are around the telescope within a 5-kilometer radius
C.The second-largest radio telescope is made up of 4,450 panels
5.How long did it take to finish the FAST project?
A.About twenty years. B.About ten years. C.About six years.
How much do you know about the solar system?The following passage will tell you.
The earth is a planet.It as well as seven _____ planets goes around the sun.We _____ the eight planets and the sun the solar system.The first planet,_____ the sun,is Mercury(水星).It is 58 million _____ from the sun.Venus(金星)is the second planet next to the sun,and _____ planet,the earth,is the third.It is 150 million kilometres from the sun.
Jupiter(木星),Saturn(土星),Neptune(海王星)and Uranus(天王星)are all _____ than the earth,_____ Venus,Mars and Mercury are smaller than the earth.
Animals,trees and humans can only _____ on the earth—the other planets in our solar system do not _____ air or water.Do any planets in other galaxies have ______?We don't know about it.
1.A.else B.others C.other D.another
2.A.know B.call C.take D.pick
3.A.next to B.before C.out of D.in front of
4.A.years B.hours C.metres D.kilometres
5.A.our B.their C.her D.his
6.A.lighter B.bigger C.shorter D.safer
7.A.but B.or C.till D.so
8.A.knock B.try C.live D.land
9.A.have B.bring C.fill D.join
10.A.planet B.system C.galaxy D.life
句型转换
1.He has arrived in Beijing.(改为同义句)
He has ________ Beijing.
2.I have already started it.(改为否定句)
I ________ started it ________.
3.He climbed higher so that he could see it.(改为同义句)
________ ________ ________ see it,he climbed higher.
4.My father has been to Beijing twice.(对画线部分提问)
________ ________ ________ has your father been to Beijing?
5.I made this model plane just now.(用just改写句子)
I ________ ________ ________ this model plane.
根据汉语意思完成下列句子,每空一词
1.他对航天旅行感兴趣。
He is interested in________ ________.
2.王涛一直在跳。他在干什么呢?
Wang Tao is jumping all the time.What is he ________ ________?
3.为了获得成功,你必须努力工作。
________ ________ ________ be successful,you must work hard.
4.史密斯小姐经常在网上搜索购物信息。
Miss Smith often________ ________shopping information on the Internet.
5.我刚听说了最近的新闻。
I have ________heard the ________ ________.
—Where is Mr.Brown?
—He ________ Australia.He ________ there last year.
A.has been to;has been B.has been to;has gone
C.has gone to;went D.went;went
I borrowed a book ________ history from our school library yesterday.
A.to B.at C.in D.on