People have long thought that dinosaurs were brown or gray in color.To examine is one important way to find out the answer.The word“examine”is to look at or consider something in detail in order to discover something about them.After examining the remains(遗骸)of a dinosaur, scientists say they have found evidence it had bright-coloured feathers.The findings were printed in Science magazine.
American and Chinese scientists did careful research and re-built the feathers of a flightless dinosaur.The small, two-legged creature(生物)lived about one hundred-fifty million years ago.It would have weighed only about one hundred ten grams.The dinosaur's remains were discovered in Liaoning Province in China.Researchers studied melanosomes(黑素体)in the feathers.These melanosomes are small, color-producing things, and they formed as the dinosaur was developing.The researchers compared them to the melanosomes that control the colour of feathers on modern birds.They were then able to make out the colors of the dinosaur feathers.The dinosaur appeared to have a dark gray or black body.The top of the creature was light brown in color.And, it had bright white wings.Each of the feathers had black on the end.
Richard Prum, a biologist at Yale University, says the melanosomes were in very good condition.He says the dinosaur would be a beautiful creature if it were still alive.
The discovery is useful to scientists in another way.It helps them better understand not only how dinosaurs looked but also how they lived in their daily life.Some researchers plan to use this way to study the colours of other feathered dinosaurs.
(1)
What have scientists discovered recently?
[ ]
A.
Brown and gray dinosaurs.
B.
The first remains of a dinosaur.
C.
The magazine Science failed to come out.
D.
A kind of dinosaur with bright-coloured feathers.
(2)
A flightless dinosaur means that the creature ________.
[ ]
A.
was able to fly
B.
could have no wings
C.
could not fly
D.
was unable to walk
(3)
Where were the remains of the two-legged creature found?
[ ]
A.
It would have weighed only about one hundred ten grams.
B.
They were discovered in Liaoning Province in China.
C.
It lived about one hundred-fifty million years ago.
D.
They were rebuilt by American and Chinese researchers.
(4)
The researchers compared ________ of the dinosaur to those of modern birds.
[ ]
A.
the white wings
B.
the legs and the body
C.
the melanosomes in the feathers
D.
the living conditions
(5)
Which of the following is NOT TRUE according to the passage?The discovery helps scientists ________.
More than seven hundred years ago, the Prince(王子)of Wales had a very big and brave dog called Gelert.One day the Prince wanted to go hunt-ing(打猎)with his men.He told his dog to stay at home and look after his baby son.The baby was in a wooden cradle(摇篮), which was like a small bed.When the Prince came back from hunt-ing, Gelert ran out to meet his master(主人).He wagged his tail and jumped up to put his paws(爪子)on the Prince's chest.Then the Prince saw the blood(血)on Gelert's jaws and head.
"What have you done? " the Prince said.He rushed into his house and looked for his baby son.The cradle was lying on its side on the floor.The clothes were torn(撕坏)and there was blood on them.
"So you have killed my son? " the Prince said angrily."You unfaithful dog! " He took out his sword(剑)and killed the dog.Just as Gelert was dying, he managed to bark.Then the Prince heard a baby call to the dog.
The Prince ran out of the house and saw his son lying on the ground unhurt.Near him was a dead wolf.Then the Prince knew that Gelert had defended(保卫)the baby and killed the wolf.
The Prince ran back into the house but he was too late.Gelert was dead.The Prince was very sad indeed.Tears ran down his face when he realized 'he had killed his faith-ful friend.The Prince carried the body of his brave dog to the top of a mountain and buried(埋葬)him there.After this, the Prince never smiled again.Every morning, he walked up the mountain and stood by the dog's grave(墓穴)for a few minutes.
If you go to Mount Snowdon in Wales, people will show you where Gelert is buried.There is a sign by his grave.It reminds peo-ple of a brave and faithful dog.
(1)
Gelert was the dog of the Prince of ________.
[ ]
A.
Scotland
B.
England
C.
Ireland
D.
Wales
(2)
The Prince told the dog to ________ when he was leaving.
[ ]
A.
watch the door
B.
take care of his baby at home
C.
welcome his friends
D.
stop the strangers
(3)
The dog was very ________ when his master came back from hunting.
[ ]
A.
glad
B.
fearful
C.
afraid
D.
tired
(4)
The Prince was surprised to see blood on Gelert's ________.