题目内容
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How does Booth's Algorithm improve binary multiplication？
A．It prevents overflow.
B．It prevents underflow.
C．It preserves the sign of the multiplication operation.
D．It enhances the speed of the operation significantly.
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听力原文： At the end of the 19th century, a social scientist visited Stockwell, in south London. He was involved in an ambitious project, led by the shipping magnate Charles Booth, to color-code every street in the capital according to its social make-up. In general, the area struck him as comfortable. But just east of Stockwell Road he found a pocket of filth and squalor, with rude residents and broken windows. It was, he believed, "far the worst place in the division".
Since then, the area has been transformed. Dismal two-storey cottages have been swept away and replaced by grass and the apartment blocks of the Stockwell Park Estate. But the appearance of the neighborhood has changed more than its character. Julie Fawcett, who lives in one of the blocks, characterizes her neighbors as "the mad, the bad and the sad". Unemployment is more than double the area's average.
In many ways, London has changed dramatically in the past century. It has sprawled far beyond its 1898 boundaries. The network of underground transport has expanded, and cars have appeared. The city has been bombed in two world wars. The middle classes fled, then returned. Yet when Booth's maps am updated using data from the last census, the changes are less striking than what has stayed the same. Not only do the broad patterns found in the 19th century hold -- the East End is still poor, the West End still rich -- but so do many local ones.
Booth's method of judging streets was necessarily impressionistic. Researchers peered through windows and into back gardens in search of clues. A torn waistcoat on a clothes line in Kentish Town, north London, "told clearly of working-class occupants". Police officers were asked their opinions. Of the residents of one street in the south London neighborhood of Battersea, the local copper asserted: "People have improved their houses but not their manners." That road was coded black, for "vicious, semi-criminal" -- the lowest of seven categories.
Sadly, the 2001 census does not measure viciousness. But it does measure people's socioeconomic status. By collapsing its eight categories, and Booth's seven, into four, it is possible to see how a neighborhood has changed (or not changed) over a century. One area that has altered more than most: north Chelsea.
In 1898, Chelsea was socially mixed, and neither especially rich nor especially poor. Booth's researchers found some well-to-do residents in the Georgian terraces and on the main roads; before the advent of cars, busy roads were often smart. Worst was a now-demolished street southeast of the Fulham Road, the neighborhood's main drag, which featured "evil looking drink sodden old Irish women".
A century later, managerial and professional workers are now the dominant group in the area. Many streets that were middling in Booth's day are now wealthy, and some pockets of deep poverty have disappeared.
But poverty has not been altogether banished from this part of Chelsea, nor has it moved much. Most of the poorest areas in 2001 were also poor in 1898, and in almost exactly the same places. The reason is that the worst Victorian slums have been knocked down and replaced with tracts of social housing. Some of this housing was built by charitable trusts in the early 20th century.
Charles Booth was a ______.
A．urban planner
B．social scientist
C．shipping tycoon
D．government consultant
MB Huh, that's strange. It's never done that before. Do you have your parking ticket with you？
WA No, the machine ate that too. I put in the ticket, the machine told me I owed two dollars, I put in a ten dollar bill... and the machine crashed completely. It won't respond to any button I press.
MB Okay, that's definitely weird. Let me close down this booth and I'll go upstairs with you to check it out. Hold on a second... I need to lock up here.
Where does this conversation take place？
A．At a bank
B．In a parking garage
C．Near a food vending machine
D．Next to a public telephone booth
Nevertheless, let's face it: English is a crazy language. There is no egg in eggplant, neither pine nor apple in pineapple and no ham in a hamburger. Sweetmeats are candy, while sweetbreads, which aren't sweet, are meat.
We take English for granted. But when we explore its paradoxes, we find that quicksand can work slowly, boxing rings are square, public bathrooms have no baths in them.
And why is it that a writer writes, but fingers don't fang, grocers don't groce, and hammers don't ham？ If the plural of tooth is teeth, shouldn't the plural of booth be beeth？ One goose, two geese—so one moose, two meese？
If the teacher taught, why isn't it true that the preacher praught？ If a horsehair mat is made from the hair of horses and a camel-hair coat from the hair of camels, from what is a mohair coat made？ If a vegetarian eats vegetables, what does a humanitarian eat？
In what other language do people drive on a parkway and park in a driveway？ Ship by truck and send car- go by ship？ Have noses that nm and feet that smell？ How can a slim chance and a fat chance be the same, while a wise man and a wise guy are opposites？ How can overlook and oversee be opposites, while quite a lot and quite a few are alike？ How can the weather be hot as hell one day and cold as hell the next？
You must be shocked at a language in which your house can burn up as it burns down, in which you fill in a form. by filling it out and in which your alarm clock goes off by going on.
English was invented by people, not computers, and it reflects the creativity of the human race (which, of course, isn't really a race at all). That is why, when stars are out they are visible, but when the lights are out they are invisible. And why, when I wind up my watch I start it, but when I wind up this essay I end it.
Which of the following pairs mean the same？
A．A wise man and a wise guy.
B．A slim chance and a fat chance.
C．Overlook and oversee.
D．Sweetmeat and sweets.
Making Use of the Trade Show
Problems:
No. 1 How to get the right people to communicate with the【16】
No. 2 How to find the right booth.
No. 3 How to display the products.
Last but not the least (a reminder):
Solutions:
To【17】people with great【18】communication skills.
To learn about the location based on its price. (Do not forget to【19】for the booth ! )
To display the products in different ways. (e. g. sign holder,【20】holders, wall magazine racks, poster frames, and【21】etc. )
To talk to some people who have previously【22】in the trade show to find out more.
(16)
A、How large is a booth？
B、How may I help you？
C、How much is a booth？
D、How can I register（注册）？
A.Standard booth.
B.Peninsula booth.
C.Island booth.
D.Linear booth/in-line booth.
A.How do it feelIt’s hard
B.How does it feelIt’s hard
C.How does it tasteIt’s hard
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