单选题Tom: I see in the paper they're sending more equipment to space. And we might have to live there someday. John: ______! I'm staying right here.

单选题The three biggest lies in America are: 1) "The check is in the mail", 2) "Of course I"ll respond you in the morning", and 3) "It was a computer error." Of these three little white lies, the worst is the third. It"s the only one that can never be true. Today, if a bank statement cheats you out of $900 that way, you know what the clerk is sure to say, "It was a computer error." Nonsense. The computer is reporting nothing more than what the clerk typed into it. The most annoying case of all is when the computerized cashier in the grocery store shows that an item costs more than it actually does. If the innocent buyer points out the mistake, the checker, bagger, and manager all come together and offer the familiar explanation: "It was a computer error. It wasn"t, of course. That computerized cashier is really nothing more than an electric eye. The eye reads the Universal Product Code—that bar of black and white lines in a corner of the package—and then cheeks the code against a price list stored m memory. If the price list is right, you"ll be charged accurately. Grocery stores update the price list each day—that is, somebody sits at a keyboard and types in the prices. If the price they type in is too high, there are only two explanations: carelessness or dishonesty. But somehow "a computer error" is supposed to excuse everything. One reason we let people hide behind a computer is the common misperception that huge, modern computers are "electric brain" With "artificial intelligence". At some point there might be a machine with intelligence, but none exists today. The smartest computer on earth right now is no more "intelligent" than your average pen. At this point in the development of computers, the only thing any machine can do is what a human has instructed it to do.

单选题There have been great advances in the ______ of cancer.

单选题Only guests of the hotel enjoy the ______ of using the private beach. A. privilege B. possibility C. favor D. advantage

单选题The fourth-graders at Chicago’s McCormick Elementary School don’t know Chinese is supposed to be hard to learn. For most, who speak Spanish at home, it’s becoming their third language. They’ve been hearing and using Chinese words since nursery, and it’s natural to give a “ni hao” when strangers enter the classroom, “it’s really fun!” says Miranda Lucas, taking a break from a lesson that includes a Chinese interview With Jackie Chan. “I’m teaching my mom to speak Chinese.” The classroom scene at McCormick is unusual, but it may soon be a common phenomenon in American Schools, Where Chinese is rapidly becoming the hot new language. Government officials have long wanted more focus on useful languages 1ike Chinese, and pressure from them-as well as from business leaders, politicians, and parents-has produced a quick growth in the number of programs. Chicago city officials make their best effort to include Chinese in their public Schools. Their program has grown to include 3, 000 students in 20 schools, with more Schools on a waiting list. Programs have also spread to places like Los Angeles, New York City, and North Carolina．Supporters see knowledge of the Chinese language and culture as an advantage in a global economy where China is growing in importance. “This is an interesting way to begin to engage with the world’s next superpower,” says Michael Levine, director of education at the Asia Society, which has started have new public high schools that offer Chinese. “Globalization has already changed the arrangements in terms of how children today are going to think about their careers. The question is when, not whether, the schools are going to adjust.” (80)The number of students learning Chinese is tiny compared With how many study Spanish or French. But one report shows that before-college enrollment (报名人数) nearly quadrupled between 1992 and 2002, from 6, 000 to 24, 000．Despite the demand, though, developing programs isn’t easy. And the NO.one difficulty, everyone agrees, is having enough teachers. Finding teacher “is the challenge,” says Scott McGinnis, an academic adviser for a language institute and a Chinese teacher for 15 years at the college level “Materials are easy in comparison. Or getting schools funded.”

单选题______ your valuable help, we couldn"t have finished the experiment ahead of time.

单选题We are all very grateful ______ you for your help.

单选题Paula: Hello, my name is Paula Field. Welcome you to Tectron U. K. Jens: Thank you. ______.

单选题[此试题无题干]

单选题__________ to become a film star．

单选题______, the new electronic device they designed is now in regular operation.A. With the solved problemB. With this problem being solvedC. With the problem solvedD. With this problem to solve

单选题As a soldier, you ______ do as the head tells you.

单选题The committee ______ the problem for a whole afternoon but they have not yet reached an agreement.

单选题None of us knew the change had come ______.

单选题When we accept the evidence of our unaided eyes and describe the Sun as a yellow star, we have summed up the most important single fact about it--at this moment in time. It appears probable, however, that sunlight will be the color we know for only a negligibly (微不足道的) small part of the Sun's history.Stars, like individuals, age and change. As we look out into space, we see around us stars at all stages of evolution. There are faint blooded dwarfs so cool that their surface temperature is a mere 4,000 degrees Fahrenheit; there are scaring ghosts blazing at 100,000 degrees Fahrenheit and almost too hot to be seen, for the great part of their radia-tion is in the invisible ultraviolet range. Obviously, the "daylight" produced by any star depends on its temperature; today (and for ages to come) our Sun is at about 10,000 de-grees Fahrenheit, and this means that most of the Sun's light is concentrated in the yellow band of the spectrum, falling slowly in intensity toward both the longer and shorter light waves.That yellow "hump" will shift as the Sun evolves, and the light of the day will change accordingly. (80) It is natural to assume that as the Sun grows older, and uses up its hydrogen fuel-which it is now doing at the spanking rate of half a billion tons a sec-ond-it will become steadily colder and redder.

单选题Homer: Excuse me, what is the best way for me to improve my English? Cyril: ______________ If you don’t practice, nothing else can help you.

单选题First aid can save a person's life if ______ immediately and properly.

单选题I will never know what was on his mind at the time, nor will ______.