Thirty years ago，if you looked down from a plane at the east coast of Australia，you would be greeted by the breathtaking beauty of the Great Barrier Reef，the world's largest coral reef （珊瑚礁）．It extends for over 2，600 kilometres in the blue sea，containing （21）． countlesscountless （count） coral and small islands．It （22）． was listedwas listed （list） as a UNESCO world heritage site in 1981．
However，this natural wonder of the world is being taken away from us．Coral cover in the Great Barrier Reef has dropped （23）． byby more than half over the last 27 years，the Guardian reported．"（24）． IfIf the trend continues，coral cover could halve （減半） again by 2022，"said Peter Doherty．So unless we start acting now，there won't be any"heritage"（25）． leftleft （leave） in the future．
Coral reefs play an important part in the ocean's ecosystem （生態(tài)系統(tǒng)）．（26）． TheyThey are a source of food and act as protection for young fish．（27）． ButBut in the past three decades they have been under threat around the world mainly from increased storms，（28）． aa growing number of starfish and coral bleaching （變白）．The good news is （29）． thatthat coral can recover from climate change damage．But the coral decline revealed by the study-shocking as it is-has happened before the most serious effects of ocean warming has happened．So we （30）． undoubtedlyundoubtedly （doubt） have more challenges ahead．
【考點】國家地理．
【答案】countless；was listed；by；If；left；They；But；a；that；undoubtedly
【解答】
【點評】
聲明：本試題解析著作權屬菁優(yōu)網所有，未經書面同意，不得復制發(fā)布。
發(fā)布：2024/4/20 14:35:0組卷：5引用：1難度：0.4
相似題
-
1．Wuzhen Water Town is a typical ancient town in southern China．（1）
（lie） in the northern part of Tongxiang City，Zhejiang Province，it can be easily accessed through a number of express ways．On a recent business trip to Shanghai，a local friend （2）（invite）me to Wuzhen．
It was 9：00 am when we arrived there．With its houses made （3）black bricks and gray tiles （瓦） against the white walls，the small town is like a（4）（tradition） Chinese ink wash drawing．Wandering along the riverside，you will be （5）（deep） impressed by the great scenery and slow lifestyle．During lunchtime，I （6）（treat） to the steamed white fish，a well-known d sh served at most （7）（restaurant） in Wuzhen．It tasted so good．But I think it is the combination of culture and food that makes it so outstanding．
After lunch，we continued our walk，enjoying the sights and learning about its history，a history （8）is full of good stories and unique traits （特色）．
It's really fortunate for anybody （9）（explore） such a beautiful place．We hope there will be （10）second chance to visit this wonderful town!發(fā)布：2024/11/8 23:0:1組卷：165引用：10難度：0.5 -
2．If you enjoy reading，don't miss Shakespeare and Company when you visit the city of Paris.It is a famous English-language bookstore on the left bank of the river Seine.The first Shakespeare and Company in history was opened in 1919 by an American，Sylvia Beach.Ms Beach did more than sell books.Her bookstore was also a library，and she even prepared beds for writers visiting there.Ms Beach was not only kind to people but also good at choosing books，so her bookstore was often visited by writers like Ernest Hemingway and James Joyce.But in 1941，after the Germans took power in Paris，Ms Beach was told to close her bookstore.
In 1951，another American，George Whitman，opened in Paris another English-language bookstore，Librairie Mistral.Since then，just as Ms Beach did，Mr Whitman has also made his bookstore a library for people to borrow books，and a free hotel for writers to stay in.To remember Ms Beach，Mr Whitman changed the name of his bookstore to Shakespeare and Company in 1964，two years after Ms Beach died.
Next time when you are in Paris，don't forget to visit this friendly bookstore，and see if you can spend a night there!
（1）When was Shakespeare and Company first opened？
A．In 1919.
B．In 1941.
C．In 1951.
D．In 1964.
（2）What does Shakespeare and Company do？
a.It sells books.
b.It lends books.
c.It offers food to readers.
d.It prepares beds for writers.
A．a，b，c
B．a，c，d
C．a，b，d
D．b，c，d
（3）Ms Beach closed her business because.
A．she died
B．she left Paris
C．she was made to do it
D．she didn't manage it well
（4）What do we know about Mr Whitman？
A．He was Ms Beach's neighbour.
B．He used to work at Ms Beach's bookstore.
C．He opened a bookstore to remember Ms Beach.
D．He has followed Ms Beach's ways of doing business.發(fā)布：2024/11/11 4:0:2組卷：21引用：2難度：0.5 -
3．The sky is a large place，and though it has been carefully examined for centuries，new features still turn up.Last March it was the rule of Uranus（天王星），and last week astronomers announced what may turn out to be a new planet，though a very small one，in the solar system.
The object was first sighted last month by Charles Kowal，an astronomer at the Hale Observatories in Pasadena，Calif.Mr Kowal observed a faint trail of light on photographic plates，indicating that something was moving in relation to the background of stars.Other observers have confirmed the discovery.
The "mini-planet"，identified for the time being as "Object-Kowal"，appears to be about 1.5 billion miles away，between the orbit of Saturn and Uranus，and its diameter（直徑）has been estimated at between 100 and 400 miles.Its orbit has not been determined yet，but if the orbit proves to be roughly circular，like that of the major planets，the new object would probably take 66 to 70 years to make a circuit of the sun.
Some astronomers have speculated that Mr Kowal's discovery may be the first indication of an asteroid（小行星）belt beyond Saturn.
（1）What may have been found in the solar system according to the first paragraph？
A．A small new planet.
B．A new solar system.
C．A large new object.
D．A large new planet.
（2）What can we learn from the second paragraph？
A．What the object is like.
B．How the object was found.
C．Where the astronomers live.
D．Why the object was moving.
（3）What magazine might this passage be taken from？
A．Astronomy.
B．Industry.
C．Spaceflight.
D．Agriculture.發(fā)布：2024/12/4 17:30:2組卷：22引用：2難度：0.7
把好題分享給你的好友吧~~