15．A hole at the bottom of a ship will allow water to flood into the hull.causing it to sink．But bel——青夏教育精英家教网——

15．A hole at the bottom of a ship will allow water to flood into the hull（船体），causing it to sink．But believe it or not，most large ships sailing over the deep ocean waters actually have one or more good-sized holes at their bottom!These holes have been given a rather fanciful name-moon pool．A moon pool is basically an opening located at the floor or the hull of a sailing ship，which is used for gaining easier and safer access to the water below．
Above Sea Level
This is the first and most basic type of the moon pool．It is located within a sailing ship，inside a chamber（船舱） that is built above sea level．This chamber is constructed such that it is easily accessible via hallways and stairways，inside the sailing shup．This type usually requires ships to have a twin-hull design，and is most commonly found on oil drilling platforms．
At Sea Level
This type is found in ships with a single hull design．In these ships，the hull is well below sea level，which causes the water to rise up inside the opening of the moon pool，making it seem there is a swimming pool．To prevent the rising water from flooding the hull and sinking the ship，the sides of the moon pool are designed such that they rise up higher than water level in the pool，containing an overflow（溢流管）．This type also has doors present inside the hull．The openings to the moon pool can be closed by shutting the doors．
Below Sea Level
This type of moon pool is present below sea level．The chamber housing the moon pool is made completely airtight（不透气的） with a two-door mechanism．The first door opens to the hull while the second one opens to the sea water．When a diver wants to enter the water，he will enter into the middle chamber through the first door，while the second one is kept locked．Once the dive is inside the chamber，the first door is locked．Then the second door is opened and the diver is able to enter the water．To get back in，he will need to get into the chamber through the second door while the first remains locked．Once he is inside the chamber，the second door is closed，and the water in the chamber is pumped out before the first door is opened．                In Submerged Habitats（水下居住舱）
This type is usually found in deep underwater habitats，which are made completely airtight and filled with air up to normal atmospheric pressure．The moon pool provides the only way to enter or exit from these habitats．The entry and exit mechanism is similar to the one used by the below sea level type of moon pools．

59．A moon pool on an oil drilling platformC．
A．has doors present inside the platform
B．looks like a swimming pool in the platform
C．is easy to access through hallways and stairways
D．has higher sides than water level in the pool
60．Moon pools in ships with a single hull design are often builtB．
A．above sea level    B．at sea level   C．below sea level   D．in submerged habitats
61．What is the right procedure for getting back in the hull through the moon pool below sea level？D
a．Open the first door．b．Pump the water put．
c．Close the second door．d．Enter the secong door．
A．d，b，c，a    B．d，a，b，c    C．a，b，d，c     D．d，c，b，a．

14．Well，I finally decided to enter the digital age．My kids have been annoying me； my book group made fun of me； and the last straw was when my car broke down，and I was stuck on the highway for an hour before someone stopped to help．But when I went to the cell phone store，I almost changed my mind．The phones are so small that I can't see the numbers．They all have cameras，computers and a Global Positioning System that's supposed to spot me from space．All I want to do is to be able to talk to my grandkids!And the rate plans（资费套餐）!They were complex，confusing，and expensive!I'd almost given up when a friend told me about her new Jitterbug phone．
Sometimes I think the people who designed this phone and the rate plans had me in mind．The phone fits easily in my pocket，but when it opens it reaches from my mouth to my ear．The display is large，so I can actually see who is calling．With a push of a button I can control the volume（音量），and if I don't know a number，I can simply push one for a friendly，helpful operator that will look it up and even dial for
Call now and get a FREE GIFT--$24in value!Try the Jitterbug for 30days and if you don't love it，just return it．The phone comes preprogrammed with your favorite numbers，and if you aren't as happy with it as I am，you can return it for a refund（退款）of the purchase price．

56．Why did the author's book group make fun of him？C
A．His car always broke down．
B．He was famous for his meanness．
C．He didn't keep up with the times．
D．His grandkids lost touch with him．
57．The author finally got a Jitterbug phoneB．
A．because of its free gift
B．because of its convenience
C．because of his friend sent it as a gift
D．because its numbers were his favorite
58．What's the main purpose of this passage？A
A．To advertise the Jitterbug phone．
B．To introduce how to enter the digital age．
C．To describe the author's personal experience．
D．To show users how to use the Global Positioning System．

13．-Shall we go to the exhibition or to the concert？
-________．（　　）

	A．	It's your opinion		B．	I don't mind
	C．	That's your decision		D．	It's all up to you

12．As we know，plastic is more harmful to the environment ______ it won't break down in more than one hundred years．（　　）

11．The man who hit 9people in a row had drunk so much that his mind could no longer _____ between fantasy and reality．（　　）

10．-When will you come to see me again？
-Tomorrow is ______ it is most convenient，I think．（　　）

9．Alice is now in the UK，but she _____ English for three months in Hong Kong．（　　）

8．I'll never forget the days I learned hard in my senior high school， changed my whole life．（　　）

7．Leonardo da Vinci's mother may have been a Chinese slave according to a new research by an Italian historian and novelist-Angelo Paratico，who has spent the last 20years living and working in Hong Kong，researching the links between his homeland and China over the past half century．
Mr Paratico said the documents he has uncovered during two years of research form the basis of his latest book Leonardo Da Vinci，a Chinese scholar lost in Renaissance（文艺复兴） Italy．The book，which is due to be published next year，uncovers evidence that there's a link between Da Vinci and the Far East．
Speaking to the South China Morning Post，Mr Paratico said，"I am sure that Leonardo's mother was from the East，but to make her a Chinese，we need to use a deductive method（演绎法）．One wealthy client of Leonardo's father had a slave called Caterina．After Leonardo's date of birth，she disappeared from the documents．She was no longer working there．"
It is believed that his mother was called Caterina，who，according to some reports，was a local peasant．But Mr Paratico's new work claims it is most likely that Da Vinci's mother was a slave．Supporting his theory，he said，"During the Renaissance，countries like Italy and Spain were full of slaves from the East．"
He claimed that there were certain aspects of Da Vinci's life and works which suggest a Chinese link．For instance，he was writing with his left hand from left to right and he was also a vegetarian，which was not common．Mona Lisa is probably a portrait of his mother，as Sigmund Freud said in 1910．On the back of Mona Lisa，there is a Chinese landscape and even her face looks Chinese．
Mr Paratico said he believes the only way to solve the mystery is to dig out some of Da Vinci's relations in Florence and extract some DNA．
43．What is Mr Paratico's latest book based on？A
A．His research findings．
B．His living experience．
C．His final visit to Italy．
D．His interest in Renaissance．
44．What may suggest there is a link between Da Vinci and Chinese？B
A．His working habit．
B．His ways of writing．
C．His birth date．
D．His father's friend．
45．What can we learn about Da Vinci's mother？D
A．She was a slave of Leonardo's father．
B．She quit working after her marriage．
C．She was buried in Florence after death．
D．She was probably the model of Mona Lisa．

6．The committee _____ made up of 20members，who _____ experts in medicine．（　　）

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