单选题Within the foreseeable future there may be a major ______ of species, involving from one-third to two-thirds of all the species now in existence. A. exhaustion B. exhibition C. extension D. extinction

单选题German zoologist Randolf Menzel says bees aren't as busy as people believe they are. "Bees are not particularly (51) . Instead they sleep a lot and are lazy. They spend (52) 80 per cent of the night sleeping. Even during the day they often fly to the nest (53) they rest their wings," said Menzel, a zoologist at the Free University in Berlin, who has studied bees for four decades. But to (54) for their apparent laziness, they are actually very intelligent. They are (55) leathers and able to recognize various smells. Menzel said bees' learning, like (56) of many animals, was based on a reward system. "If a bee is rewarded once for something, it remembers it for a week. But if it is rewarded three times, it will remember it for its (57) lifetime," said Menzel. He last week was awarded a (58) by the German Zoological Society. The memory capacity of bees means they can (59) among more than 50 different smells to find the one they want. "What is interesting is that what smells good to a bee, is also a (60) smell for humans," said Menzel.

单选题Speaker A: We just came back from Phoenix. And we had the best vacation in years. Speaker B: ______I"m glad to hear it.

单选题Before he finally sent its copies off to be handed out among members of the committee, he went over it again and made sure that no item of importance was ______.

单选题Statistics ______ his most difficult subject and they are all worried that he won't pass the test. A. is B. are C. was D. were

单选题A: 911 Emergency. B: ______

单选题Woman: I am trying to find out how this dishwasher works. The manual is in French. can't wait for Bill to translate it for me.Man: Don't worry, Mary. I can do the dishes before the machine starts to work.Question: What does the man mean?

单选题Jack's friend Tony had recently gotten a tattoo (纹身), and Jack was so impressed by Tony's bravery and his tattoo that he decided to get one too. Why do a lot of young people in North America get tattoos today? Peer pressure, media influence, and personal expression are some of the common reasons. The desire to be part of a group, to be accepted by one's friends or peers, can have a great influence on what a person does. Sometimes, wearing a tattoo can be a sign that you belong to a certain group. Gangs often use special clothes and tattoos to identify their particular group. For example, in one gang all the members may wear green army jackets and have large "Xs" tattooed on their arms. It is not only gangs that have this type of special "uniform". Young people often belong to a certain group of friends. Some of these groups wear only brand-name clothes. Others wear tattoos. When a person's friends are all doing something, such as getting a tattoo, that person is more likely to do the same thing, and get a tattoo too. The media is another big influence behind the popularity of tattoos in North America. A wide variety of media images show tattoos. Tattoos can be seen on people appearing in commercials selling expensive cars. Famous sports heroes with tattoos are shown in magazines. Fashion models are often seen in magazines and on TV wearing designer clothes that show their bodies tattooed with detailed and colorful patterns. These media images link tattoos to ideas of wealth, success, and status. As a result, many people decide to get a tattoo for its fashion and status value. It is not always the influence of other people or the media that results in a person getting a tattoo. Many people decide to wear tattoos in order to express their artistic nature, their beliefs, or their feelings -- in other words, to show their individuality. A musician in a rock band may get a tattoo of a guitar on the arm. Some environmentalists may tattoo pictures of endangered animals on their shoulders. Lovers may tattoo each others' names over their hearts. A tattoo can be a public sign to show what is important in a person's life.

单选题Intelligence is to the mind ______ sight is to the body. A. what B. as C. that D. like

单选题In the room ______ a big table and a great many chairs.

单选题This is ______ the advertising for these products wants to make us think. A. why B. that C. how D. what

单选题Scarcely ______ those words when suddenly the monster was transformed into a very handsome youth. A. had he uttered B. did he utter C. he had uttered D. he did utter

单选题The generation makes it difficult for parents to understand their children"s opinions.

单选题The swan is mostly silent through its life, unable to sing sweet songs like most other birds. In ancient times, however, people believed a swan sings a most beautiful song just before it dies. The ancient Greek philosopher Socrates talked of this 2,300 years ago. Socrates explained that the swan was singing because it was happy. The bird was happy because it was going to, serve the Greek God Apollo. Swans were holy to Apollo, the god of poetry and song. The story of the swan's last song found a place in the works of other writers, including the early English writers Chaucer and Shakespeare. And the expression swan song has long been a part of the English language. At first, "swan song" meant the last work of a poet, musician or writer. Now, it means the final effort of any person. Someone's swan song usually is also considered that person's finest work. A political expression with a similar meaning is "the last hurrah". The expression may be used to describe a politician's last campaign, his final attempt to win cheers and votes. The last hurrah also can mean the last acts of a politician, before his term in office ends. Writer Edwin O'Connor made the expression popular in 1956. He wrote a book about the final years in the political life of a long-time mayor of Boston. He called his book The Last Hurrah. Some language experts say the expression came from a name given to noisy supporters of Andrew Jackson, America's seventh president. They cheered hurrah so loudly for Andy Jackson during his presidential campaign that they became known as the hurrah boys. Jackson's hurrah boys also played a part in the election to choose the next president. Jackson's choice was his vice president, Martin VanBuren. A newspaper of the time reported that VanBuren was elected president: "... by the hurrah boys, and those who knew just enough to shout hurrah for Jackson. " President Jackson really heard his last hurrahs in the campaign of the man who would replace him in the White House.

单选题In the last decade the mass media have grown worldwide to be larger, more influential and more powerful. After it was possible in the Federal Republic of Germany in the 60s to receive one TV program and in the 60s and 70s to receive three TV programs, the number of receivable TV programs has risen for a huge part of the population in western Europe through cable TV to eleven or even more programs in the last years. More TV channels are announced. Additionally there is the huge offer of videos. The distribution of video recorders in the population is increasing. Worldwide we are on the way to communication to a mass media society in which fiction, fantasy, the definition of reality assumes a greater role than reality itself, where people want to be permanently entertained, and where the description of the content gains more emphasis than the content itself. For centuries news on crime have greatly attracted the population, In the Middle Ages ballad singers moved very successfully from town to town in order to spread their ballads which were to a great part murder stories. Criminal stories are not a new development because they do not report anything really new. They are regularly told according to the pattern of the "familiar sensation" because they have a function of relief for the society, because through them, the "law-abiding citizen" can set himself apart from the criminal, because they prove to him that his behavior is "normal" and because he can be content to feel that he is better than the criminals and that he successfully managed to escape the criminal act. There is a huge demand in the population for crime news because they are entertaining and remove the boredom of everyday life. The mass media willingly fulfill this demand because crime news are cheap and easy to get hold of and because they help sell almost any product. That is why there is a symbiosis, an unholy alliance between mass media and society against which the critical criminologist advances his objections almost in vain.

单选题I just managed to ______ a quick breath before I was sucked under the water by the passing boat.

单选题Most of the homeless in the U.S. are ______.

单选题This mobile phone is ______ that one, though it's much smaller in size. A. twice expensive than B. as twice expensive as C. twice the price of D. the twice price of

单选题Workforce is composed of ______.

单选题Speaker A: May I see your driving license and vehicle registration card?Speaker B: ______ A. Sorry, don't write me a ticket. B. OK. But I was driving at 70 miles per hour. C. Sure. Did I do anything wrong? D. Yes. But I don't think I'm a bad driver.