Maria Mitchell(1818-1889,the first woman astronomer( 天文学家)in the United States, wasborn in Nantucket. Massachusetts. Her parents valued education and insisted on giving her thesame quality of education that boys received. 

Her father. William Mitchell, was an astronomer and teacher himself. When he built his ownschool, Maria became a student and also a teaching assistant to him. At home. Marias father taughther to watch the stars and other natural objects in space using his personal telescope(望远镜). 

Later she went to work at the library of the Nantucket Atheneum. Over the next tweny years.she further developed her interest in reading as many books as she could.She spent her nightswatching the sky closely with her father. 

On October 1, 1847,Maria discovered a comet( 彗星 )by merely using a two-inch telescope.Some years before, King Frederick VI of Denmark had set up prizes to each discover ofa"telescopic comet". The prize was to be given to the"first discoverer"of each such comet becausecomets were often discovered by more than one person. 

There was once a question of who should be the winner. As the story goes, francesco de Vicohad discovered the same comet two days later, but had reported it to the European vor. She wonthe prize in 1848 and became a big name the world over. The comet was named“ Miss mitchell'sComet.” 

 What ean be learnt about Marias parents according to the text?

假设你是李华，在你校工作的Smith博士即将回国，你们班同学打算为他举行欢送会。 请写信邀请他参加并告诉他具体安排:

参加人员:全班同学和英语老师

时间:10月27日，星期五，晚上 19:00-21:00

地点:8号楼1002室

内容:学生表演歌舞

Smith博士讲话

注意:1.词数应为 100左右

2.生词:欢送会farewell party

Dear Dr. Smith,

Looking forward to your early reply.

__________________________________________

__________________________________________

__________________________________________

__________________________________________

Yours,

Li Hua

53__________________

54__________________

55__________________

52__________________

Lucy要去艺术展览中心 ,向一位男士问路，该男士告诉她如何前往。

 (L=Lucy;S=Sir) 

L: Excuse me ,sir. 51__________________ the Art Exhibition Centre? 

S:Yes but it is quite far.It'S about an hour'Swalk.You can take a bus there. 

L: 52__________________ ? 

S:You can take Bus No. 15. 

L: 53__________________ ? 

S:About 20 minutes. And you can also take a taxi. 

L:Taxi? That'S a good idea. Thank you very much. 

S: 54__________________ . 

L:Goodbye.S; 55__________________。

51__________________

What does purchased in the last parngraph probably mean?

What do we know about a condo hotel?

You know what a hotel is, of course. And perhaps, you also know what a condois-aresidntial(居住的)building divided into seprate uniots that are owned by different people.Whatyou may not know is that in someU.S. cities, the two have come together into somethingcalled a“condo hotel”. 

Some condo hotels can now be found in beach and mountain towns and a few smallcities,However, none is more famous than the great 105-year-old Plaza Hotel in New York,onFifth Avenue across from Central Park. The Plaza closed for repair in When it reopened twoyears later,more than half of it had been changed into one of these modern condo hotels. 

Here's how it works: You buy what equals to an apartment( 公寓). If it's at'The Plaza,it willcost you between $1.5million and $9 mllion. So you own a part of the building. But there's someinconvinience. You may stay there no more than 120 days a year. hereion. The rest of the time,thehotel's workers can book guests into your place, just as they would in the regular hotel's rooms. Soif you're lucky and rich,you can now live in really special quarters up to almost one thid of theyear. While others pay off your mortgage(房贷)the rest of the year. 

So far,a great monry of the nation's condo hotel units have been purchased not by rich peoplebut richer companiesm, including foreign ones. They want a nice place for their bosses to staywhen they are in town or working late at the office. 

 47.A condo is a place where people .

How long can you stay in your own condo hotel unit a most each year?