题目内容
（请给出正确答案）
How is an artificial fog made in the movies？
A．By passing steam over dry ice.
B．By turning ordinary ice into steam.
C．By melting dry ice.
D．By mixing dry ice with ordinary ice.
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更多“How is an artificial fog made …”相关的问题
A．To create artificial bone tissue.
B．To learn how to prevent a bone disease.
C．To find out how specialized bone cells have evolved.
D．To understand differences between bone tissue and other tissue.
How does light pollution affect wildlife？ Which of the following is NOT correct？
A．Animals may go off course due to the attraction of artificial lights.
B．Animals might be attracted by artificial lights m go into cities.
C．Artificial lights at night may make migrating birds lose their way.
D．Attracted by artificial lights, birds fly into lighted buildings.
40 Another good title for this passage would be
A Robots: Taking the Place of Humans.
B Artificial Intelligence Programs.
C Modern-Day Sensors.
D Today’ S Robots and How They Function
One explanation may be found in the name. The original recipe(配方)included a flavoring from the coca plant and probably included small amounts of cocaine (an addictive (使人上瘾的) substance), but since the early part of this century all traces of cocaine have been removed. However, Coke (like all cola drinks) also includes a flavoring from the cola tree; cola extract(提炼物) contains caffeine, which is a stimulant, and the Coca-Cola company adds extra caffeine in addition. While caffeine is not thought to be an addictive substance in itself, there is considerable evidence that over a period of time the consumption of caffeine has to be increased in order for its stimulating effect to be maintained, and so sales of Coke perhaps benefit as a result.
A more likely reason for the enduring popularity of Coke may, however, be found in the company's enviable marketing(营销) strategies. Over the years it has come up with some of the most memorable commercials (商业广告), tunes, slogans and sponsorship in the world of advertising, variously emphasizing international harmony, youthfulness and a carefree(轻松愉快的) lifestyle. Few other companies have been able to match such marketing techniques so consistently or effectively. As suggested earlier, the influences of American culture are evident just about everywhere, and Coca-Cola has somehow come to represent a vision of the United States that much of the rest of the world dreams about and aspires to (热望). Perhaps drinking Coke brings people that little bit closer to the dream.
Coca-Cola is not a healthy product because______.
A．it is merely a combination of carbonated water, sugar, acid and flavourings
B．it may be harmful to teeth
C．it doesn't contain artificial sweeteners
D．it has some stimulating effect
听力原文：W: I've been reading about (23)a new healthful snack food. It's made from fish. Have you heard anything about it？
M: No, I haven't, but I don't like fish very much anyway.
W: Not to worry. Although it's made primarily from fish, (24) it actually doesn't have a fishy taste. In fact, it can be flavored with tomato, cheese, or chocolate, for instance.
M: How can it not taste fishy？ Do you know how the snack food is made？
W: First, the fish is minced, and cooked, and fermented. Then water and starch are added to make a dough.
M: It sounds awful. (25)Actually, the dough is very bland at that point, so the flavorings are added to give it some taste. Well, it still sounds a little strange, but I suppose this product will at least be low calorie and high protein like a health food.
W: Yes, you could call it that. And it has alone shelf life so it won't spoil quickly, and it's also easy to digest, and can be made from types of fish that usually aren't eaten, or from high grade fish by-products.
M: Hmmm. Have you got any samples？ I might be willing to try the cheese :flavored variety.
W: No, none of it seems to be available yet. I understand it, this fish snack food probably won't be in the stores for another couple of years. So you'll have a While to get used to the whole idea.
M: A couple of years, huh？ It may just take me that long. But thanks for telling me about it.
(20)
A．Food packaging.
B．Varieties of fish.
C．A new snack food.
D．An artificial food flavoring.
These computer systems are known as e-raters. They use artificial intelligence to think in a way【C6】______teachers. In the state of Indiana, computer grading of a statewide【C7】______test began with a【C8】______of the system itself. For two years, both a computer and humans graded the student writing. Officials say there was almost no difference between the computer grades and【C9】______given by the【C10】______readers.
Systems are also being used to grade writing in college classes. The computers【C11】______a few hundred【C12】______of student writing already graded by humans. Then the systems【C13】______new essays【C14】______those already examined.
How do teachers feel about all this？ Many say machines can【C15】______the job【C16】______people can. A computer can find spelling and grammar mistakes.【C17】______these teachers say it can never really【C18】______what a writer is trying to say.【C19】______say a program cannot follow a thought or judge a humor【C20】______understand a beautifully expressed idea.
【C1】
A．read through
B．read about
C．take up
D．take in
The eagle-eyed Cindy follows in the path of other breakthrough toys like Sony's barking Robot Aibo, which was the first to popularize voice command in the late 1990s. Cindy goes one step further; she not only follows instructions but also recognizes shapes, colors, and words -- and remembers. The effect is a doll that appears to be learning.
The toy company which produced Cindy Smart spent ten years trying to see how much human nature it could breathe into an inanimate object. Its engineers began researching basic and 'affordable artificial intelligence (人工智能), creating minibots that sense light, sounds, and pressure, However, without the sense of sight, their toys seemed to be lacking one of the keenest (敏锐的) abilities that life forms use to react to their environment.
So how do the engineers make a doll actually see？ In Cindy's case, it's a multi-step process. When presented a text like "I love you" and asked" Can you' read this？" Cindy takes it as one of 70 preprogrammed commands. Then the inbuilt camera scans(扫描) a 15-degree radius (半径) in search of number or letter-shaped objects. Buried in her stomach, Cindy's 16-bit microprocessor compares the text with her database of 700 words. If it's a match, "I love you, "she utters.
This text most likely appears in a ______.
A．medical report
B．language dictionary
C．science journal
D．music magazine
W: No, I haven' t. But I don't like fish very much anyway.
M: Not to worry. Although it is made primarily from fish, it actually doesn't have a fishy taste. In fact, it can be flavored with tomato, cheese, or chocolate, for instance.
W: How could it not taste fishy？ Do you know bow this fast food is made？
M: First, the fish is minced to pieces, and cooked. Then, water, flour and flavor are added to make it into cakes.
W: It sounds awful. But I suppose this product will at least be good for one's health.
M: Yes, it is. And it has a long shelf life, so it won't spoil quickly. It is also easy to digest.
W: Hm, have you got any .samples？ I might be willing to try the cheese-flavored variety.
M: No, none of these seem to be available yet. As I understand it, this fish fast food probably won't be in the store for another couple of years. So you have a while to get used to the whole idea.
W: Er, a couple of years, ha？ It may just take me that long, but thanks for telling me about it.
(23)
A．Food packaging.
B．Varieties of fish.
C．A new fast food,
D．An artificial flavor.
Artificial Speech
Because speech is the most convenient form. of communication, in the future we want essentially natural conversations with computers． The primary point of contact will be a simple device that will act as our window into the world． It will have to be small enough to slip into your pocket, so there will be a screen but no keyboard．, you will simply talk to it．The device will be permanently connected to the Internet and will beep relevant information up to you as it comes in． Such devices will evolve naturally in the next five to ten years．
Just how quickly people will adapt to a voice-based internet world is uncertain． Many believe that, initially at least, we will need similar conventions for the voice to those we use at present on screen: click, back, forward, and so on． But soon you will undoubtedly be able to interact by voice with all those IT-based services you currently connect with over the Internet by means of a keyboard． This will help the Internet serve the entire population．
Changes like this will encompass (围绕, 包围) the whole world． Because English is the language of science, it will probably remain the language in which the technology is most advanced, but most speech-recognition techniques are transferable to other languagesprovided (假如,若是) there is sufficient motivation to undertake the work．
Of course, in any language there are still huge problems for us to solve． Carefully dietated, clear speech can now be understood by computers with only a 4～5 per cent errorrate, but even the most advanced technology still records 30～40 per cent errors with spontaneous speech． Within ten years we will have computers that respond to goal-directed conversation, but for a computer to have a conversation that takes into account human social behaviors is probably 50 years off． We are not going to be chatting to the big screen in the living room just yet．
In the past insufficient speed and memory have held us back, but these days they are less of an issue． However, there are those in the IT community who believe that current techniques will eventually hit a brick wall． Personally, I believe that incremental (不断增长的) developments in performance are more likely． But it is true that by about 2040 or so, computer architectures will need to become highly parallel (并行的) if performance is to keep increasing． Perhaps that will inspire some radically new approaches to speech understanding that will replace the methods we are developing now．
第 16 题 In the future, people will talk to computer instead of typing and clicking．
A．Right
B．Wrong
C．Not mentioned
