It looks like a really big pan.It can see faraway stars in space;It is China's "Sky Eye".This is the Five-hundred-meter Aperture Spherical Radio Telescope (FAST,500米口徑球面射電望遠鏡).As the largest radio telescope in the world,it is as big as 30 soccer fields!
One of its jobs is to find pulsars(脈沖星).People call pulsars the "GPS of space".On the Earth,you use GPS to find different places.What if you travel to the moon or mars?You can use pulsars to find your way back to the Earth.
It also helps scientists look for life in space.FAST is about 2.5 times as sensitive(靈敏的)as the second-largest telescope in the world.It can "see" things some 13.7 billion light-years away.If you make a phone call on the moon,it can pick up the signal very clearly.
China opened FAST to the whole world on March 31.About 10 percent of FAST's observation(觀察)time,around 450 hours a year,is being given to scientists from other countries.Scientists can apply online to use it. "Sky Eye" has changed from "China's eye" to "the world's eye".
(1)What do we know about the "Sky Eye"? BB
A.It is a big pan in space.
B.It is the world's largest radio telescope.
C.It looks like a soccer field.
D.It is the world's first large telescope.
(2)What can you use pulsars to do? DD
A.Find more stars.
B.Travel to the moon.
C.Make GPS easier to use.
D.Find your way back to the Earth.
(3)How can FAST help us find life in space? BB
A.By working with other telescopes.
B.By picking up signals.
C.By making phone calls.
D.By traveling to unseen places.
(4)What does the last paragraph tell us? CC
A.China will use 10 percent of Sky Eye.
B.China makes a lot of money with Sky Eye.
C.China has opened Sky Eye to the world.
D.China will give Sky Eye to foreign scientists.
(5)Which is the best title of this passage? CC
A.Why we do research on life in outer space.
B.How to find pulsars in space.
C.What FAST is and how it will be used.
D.How many telescopes China has.
【答案】B;D;B;C;C
【解答】
【點評】
聲明:本試題解析著作權屬菁優網所有,未經書面同意,不得復制發布。
發布:2024/4/20 14:35:0組卷:1引用:1難度:0.8
相似題
-
1.It can take you a day out to Singapore(新加坡) because of the plane.Singapore is one of the most beautiful(1)
Did you ever try Chinese food outside China?Maybe you are afraid that won't be able to find anything to eat in a foreign country.In Singapore however,you'll find a lot of (10)
One great thing about Singapore is that the temperature is almost the same all year(13)(1) A.countries B.country C.cities D.city (2) A.visiting B.traveling C.living D.reaching (3) A.took place B.takes place C.take place D.taken place (4) A.Northeast B.Northwest C.Southeast D.Southwest (5) A.bus B.photo C.holiday D.look (6) A.members B.quarters C.halves D.thousands (7) A.So B.Because C.Although D.But (8) A.say B.speak C.talk D.tell (9) A.practice B.protect C.listen D.provide (10) A.drinks B.meat C.food D.fruit (11) A.find B.finding C.to find D.found (12) A.try B.to try C.trying D.tried (13) A.most B.fast C.long D.round (14) A.thick B.thin C.cool D.cold (15) A.because of B.because C.instead of D.instead 發布:2025/1/5 12:0:4組卷:6引用:1難度:0.5 -
2.
BOOK CLUB:YOUR REVIEWS: What's the book about?
The book is about a boy called Charlie.His family is very poor - they don't have much money and they don't have much food.
There is a chocolate factory near Charlie's house.It is Willy Wonka's factory.Willy Wonka invites five children to visit the chocolate factory.My favourite character:My favourite character is Charlie because he is very kind.I don't like the other children because they are horrible! Title:Charlie and the Chocolate Factory Author:Roald Dahl My opinion of the book :
This book is great!l love the incredible chocolates and sweets in the factory.Words to describe the book:
Interesting funny sad amazing magical excitingStar rating:
I give Charlie and the Chocolate Factory:
★★★★★
5 stars = Fantastic!
4 stars = Very good!
3 stars = OK
2 stars = Bad
1 star = Terrible!
Review by:Gabrielle (age 12)
A.Charlie.
B.Gabrielle.
C.Roald.
D.Willy.
(2)What is the review writer's rating of the book?
A.Fantastic!
B.Very good!
C.Bad!
D.Terrible!
(3)Which of the statements is NOT true about the book?
A.Willy Wonka was the owner of the chocolate factory.
B.The main character Charlie was born in a poor family
C.Charlie and four other kids visited the chocolate factory
D.The other four children went into the factory without invitation.發布:2025/1/30 8:0:1組卷:12引用:3難度:0.9 -
3.I've started learning German recently.I found that I could understand and learn words (1)
(3)
I used a dictionary to help me at first,so that I could (6)
As a beginner,I often (10)(1) A.happily B.loudly C.easily D.luckily (2) A.imagined B.discovered C.advised D.allowed (3) A.At last B.On time C.In silence D.At first (4) A.students B.doctors C.pilots D.policemen (5) A.encouraged B.found C.sold D.invented (6) A.care about B.talk about C.think of D.look up (7) A.understand B.write C.spell D.pronounce (8) A.quick B.tired C.surprised D.scared (9) A.pictures B.covers C.themes D.prices (10) A.guess B.read C.trust D.steal 發布:2025/1/30 8:0:1組卷:2引用:1難度:0.5