填空题It has not been decided yet __________________________________ (谁负责这个新项目).

填空题How many days was the Titanic at sea before sinking?

填空题The New York Knicks recovered from ______to become a major contender in the 1980s.

填空题New images of a weird weather phenomenon known as a roll cloud have surfaced in Richland, Mississippi. The images, taken by a phone camera by a Mississippi 1 Daniel Blake Fitzhugh, reveal a seemingly endless roll cloud, or arcus cloud, a low cloud formation that forms over the sea or 2 thunderstorms. Fitzhugh sent an image and video of the cloud to LiveScience after seeing an earlier report of a roll cloud off the coast of Brazil. Fitzhugh told LiveScience he 3 the video and image of a roll cloud in Richland, a town on the 4 of Jackson, Mississippi. "It had been cloudy and windy all day," Fitzhugh wrote in an e-mail. "I was heading north and the cloud was going from west to east. I noticed it and was 5 surprised! I had never seen anything like it before." The cloud was rolling around like a "sideways tornado," Fitzhugh said. In fact, roll clouds form where sinking cold air drives low-hanging, 6 warm air upward, where cooler temperatures condense the moisture in the air to form clouds. Winds 7 the weird rolling effect. Their more commonly spotted cousins, shelf clouds, form on the leading edges of thunderstorms; while shelf clouds 8 the bulk of a storm, these tubular clouds aren"t. Tornadoes are also 9 storms when they occur. Unlike tornadoes, roll clouds aren"t dangerous. They are rare, however. One of the best chances to see a roll cloud is off the coast of Queensland, Australia. Here, sea winds 10 form a reoccurring roll cloud known as Morning Glory during the fall months.

填空题The icebergs are dangerous because they are hidden __ and can turn over unexpectedly.

填空题Before you can use the Internet, you must choose a way to move data between the Internet and your PC. This link may be a high-speed data communication circuit, a local area network (LAN), a telephone line or a radio channel. Most likely, you will use a Modem attaching to your telephone line to talk to the 1. ______ Internet. Naturally, the quality of your Internet connection and service, as many other things in life, is dictated by the amount of 2. ______ money that you are willing to cost. 3. ______ Although all these services can well satisfy the needs of the users for information exchange, but a definite requirement is 4. ______ needed for the users. Not only should the users know how the 5. ______ resources locate, but also he should know some operating 6. ______ commands concerned to ease the searching burden of the users, and recently some convenient searching tools appear, such as Gopher, WWW and Netscape. As more and more systems join the Internet, and as more and more forms of information can be converted to digital form, the amount of stuff available to Internet users continue to grow. 7. ______ At some points very soon after the nationwide (and later Worldwide) Internet started to grow, people began to treat the Net as a community, with its own tradition and customs. For example, anybody would ask a question in a conference, and a 8. ______ completely stranger would send back an answer; after the same 9. ______ question was repeated several times by people who hadn't seen the original answers, somebody gathered list of "frequently asked 10. ______ questions" and placed it where newcomers could find it.

填空题The media can decide where to place a story and whether to cover it and_______.

填空题In eliminating a lot of noise in the airport, pilots can also help, and they can ______.

填空题 There's no question that the Earth is getting hotter. The real questions are: How much of the warming is our fault, and are we{{U}} {{U}} 1 {{/U}} {{/U}}to slow the devastation by controlling our insatiable{{U}} {{U}} 2 {{/U}} {{/U}}for fossil fuels? Global warming can seem too{{U}} {{U}} 3 {{/U}} {{/U}}to worry about, or too uncertain—something projected by the same computer{{U}} {{U}} 4 {{/U}} {{/U}}that often can't get next week's weather right. On a raw winter day you might think that a few degrees of warming wouldn't be such a bad thing anyway. And no doubt about it: Warnings about{{U}} {{U}} 5 {{/U}} {{/U}}change can sound like an environmentalist scare tactic, meant to force us out of our cars and restrict our lifestyles. Comforting thoughts, perhaps. Unfortunately, however, the Earth has some discomforting news. From Alaska to the snowy peaks of the Andes the world is heating up right now, and fast. Globally, the{{U}} {{U}} 6 {{/U}} {{/U}}is up 1°F over the past century, but some of the coldest, most remote spots have warmed much more. The results aren't pretty. Ice is{{U}} {{U}} 7 {{/U}} {{/U}}, rivers are running dry, and coasts are{{U}} {{U}} 8 {{/U}} {{/U}}, threatening communities. The{{U}} {{U}} 9 {{/U}} {{/U}}are happening largely out of sight. But they shouldn't be out of mind, because they are omens of what's in store for the{{U}} {{U}} 10 {{/U}} {{/U}}of the planet. A. remote B. techniques C. consisting D. rest E. willing F. climate G. skill H. appetite I. melting J. vanishing K. eroding L. temperature M. curiosity N. changes O. skillful

填空题In November 1965, New York was blacked out by an electricity failure. The{{U}} (36) {{/U}}promised that it would not happen again. Pessimists were certain that it would occur again within five years at the latest. In July 1977, there was a repeat performance which, produced varying degrees of{{U}} (37) {{/U}}throughout the city of eight million people. In 1965, the failure occurred in the cool autumn and at a time of{{U}} (38) {{/U}}. In 1977, the disaster was much more serious because it came when un-employment was high and the city was suffering from one of its worst heat waves. In 1965, there was little crime or looting during the darkness, and fewer than a hundred people{{U}} (39) {{/U}}.In 1977, hundreds of stores were broken into and looted. Looters{{U}} (40) {{/U}}shop windows and helped themselves to{{U}} (41) {{/U}}, clothes or television sets. Nearly 4,000 people were arrested but far more disappeared into the darkness of the night. The number of policemen{{U}} (42) {{/U}}was quite{{U}} (43) {{/U}}and they wisely{{U}} (44) {{/U}}. Hospitals had to treat hundreds of people cut by glass from shop windows.{{U}} (45) {{/U}}. The vast majority of New Yorkers, however, were not involved in looting.{{U}} (46) {{/U}}. For twenty-four hours, New York realized how helpless it was without electricity.

填空题The greater the population there is in a locality, _________________________. (其对水、效能和垃圾处理的需求就会越大)

填空题It is necessary for a newcomer to ______ of the city since some local people also use maps as a guide.

填空题But for ______(他们过高估计了房价)，their investment of this year should have been profitable.

填空题Australian schools and social institutions may have contributed to the problem of suicide among boys by focusing on giving girls more opportunities while leaving boys on their own.