���˸߿�

46、The author compares the duck’s third eyelid to a ．


47、A good title for this passage would be．


48、根据以下材料回答第 1～4 题：
Passage Four
Would you like to spend all evening reading a lovely story with beautiful illustrations and make $35，000 at the same time? Millions of people all over the world tried to do just that．Only orle succeeded．The book is called Masquerade，and was written by British painter Kit Williams．Within its pages are clues to the location of a golden jewel，and who—ever figured out the clues could find and keep the treasure．
Some years ago，Williams was asked to write a children’s book．Wanting to do some thing no one else had done before，he decided to bury a golden treasure and tell where it was in the book．He began painting without a clear idea of war the story would be about， where he would bury the treasure，or even whet the treasure would be．As he painted，he decided that in the story a hare，or rabbit，would travel through earth，air，fire and water to deliver a gift from the moon to the sun．
After three years，he finished the paintings and then wrote the story．The treasure became an l 8carat gold hare，adorned with precious stones，and it was made by Kit Wil— ltams himself．This beautiful jewel，worth around $35，000，depending on gold prices，was buried somewhere in Britain，free to anyone who could decipher the clues．Williams’s book kept people of all ages amused trying to solve the mystery of Masquerade．
The rabbit was finally found in the spring of 1982，by a 48～year-old design engineer．It was buried in a park about thirty-five miles from London．
The function of the first sentence in this passage is to ．


49、When Williams began working on his book，he ．


50、We can conclude from the passage that ．


51、This passage is about


52、根据以下材料回答第 1～4 题：
Passage Five
Sequoyah was a young Cherokee Indian，son of a white trader and an Indian Squaw(北美印第安女人)．At an early age，he became fascinated by“tile talking leaf”，an ex oression that he used to describe the white man’s written records。Although many believe this“talking leaf”to be a gift from tile Great Spirit，Sequoyah refused to accept that theo— rv．Like other Indians of tile period，he was illiterate，but his determination to remedy tile situation led to the invention of a unique 86 character alphabet based on the sound patterns that he heard．
His family and friends thought him mad，but while recuperating(恢复)form a hunring accident，he diligently and independently set out to create a form of communication for his own people as well as for other Indians．In 1821，after twelve years of work，he had successfully developed a written language that would enable thousands of Indians to read and write．
Sequoyah’s desire to preserve words and events for later generation has caused him to be remembered among the important inventors．The giant redwood trees of California，calied“sequoias(红杉)”in his honor，will further imprint his name in history．
What is the most important reason that Sequoyah will be remembered?




53、How did Sequoyah’s family react to his idea of developing his own“talking leaf”?


54、What prompted Sequoyah to develop his alphabet?


55、How would you describe Sequoyah?