单选题We are going to have the TV {{U}}fixed{{/U}}. A. prepared B. mended C. cleaned D. arranged

单选题Nowadays, we can {{U}}purchase{{/U}} things on-line.

单选题下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。 {{B}}Solar Storm{{/B}} At the end of October 2003, a sudden solar storm hit the earth. A solar storm refers to the large amounts of charged particles released into space{{U}} (51) {{/U}}the solar energy increases. The release of the energy{{U}} (52) {{/U}}place along with the activity of the sunspots with a cycle of 11 years. This time, the{{U}} (53) {{/U}}of the storm exceeded expectations. This{{U}} (54) {{/U}}of intense solar storm was caused by the eruption of a solar flare (闪光) and the ejection (喷发) of the solar corona (日冠) on October 28, 2003. Large amounts of charged particles moved 150,000,000 kilometers through space toward the {{U}}(55) {{/U}}in 19 hours. They could affect aircraft roaming (漫游) in space. The high-energy particles will{{U}} (56) {{/U}}some of the parts of an aircraft. They may also cause it to fail. High-energy particles can threaten the safety of an aircraft at a high orbit. If an aircraft orbits at a lower orbit, it is{{U}} (57) {{/U}}because it is under the protection of the earth's magnetic field. A solar storm not only affects aircraft but also is a{{U}} (58) {{/U}}to the environment and humans. The aerosphere and magnetic field of the earth can {{U}}(59) {{/U}}humans from ultraviolet radiation and X-rays. While most of the X-rays are absorbed after they enter the aerosphere (大气层), still a few can{{U}} (60) {{/U}}the ground. The geomagnetic storm caused by this round of solar storm reaches its highest level on the two{{U}} (61) {{/U}}of the earth, which affects electricity supply of North America. Overexposure to{{U}} (62) {{/U}}threatens the health of passengers on planes flying over the Polar Regions. If we fly in the sky during such a solar storm, it{{U}} (63) {{/U}} we receive ten times the X-ray radiation. It's really damaging. Scientists say a solar eruption is like the sun sneezing, which will make the earth {{U}}(64) {{/U}}a cold. Though this natural force is irresistible, scientists can still {{U}}(65) {{/U}}its movement accurately by monitoring. Facing successive solar storms, humans can't drop their guard.

单选题The strong storm did lots of damage to this coastal village: several fishing boats are {{U}}destroyed{{/U}} and many houses are collapsed.

单选题The telephone system is no longer operative .

单选题Look After Your Voice Often speakers at a meeting experience dry mouths and ask for a glass of water. You can solve the problem by activating the saliva(唾液) in your mouth. First gently bite the edges of your tongue with your teeth. Or, press your entire tongue to the bottom of your mouth and hold it there until the saliva flows. Or you can imagine that you are slicing a big juicy lemon and sucking the juice. Before you begin your talk, be kind to your voice, Avoid milk or creamy drinks which dry your throat. Keep your throat wet by drinking a little sweetened warm tea or diluted(稀释的) fruit juice. If you sense that you are losing your voice, stop talking completely. In the meantime, do not even talk in a low voice. Save your voice for your health. You may feel foolish using paper to write notes, but the best thing you can do is to rest your voice. If it is necessary, perhaps you can get some advice from a professional singer. What about drinking alcohol to wet your throat? I advice you not to touch alcohol before speaking. The problem with alcohol is that one drink gives you a little confidence. The second drink gives you even more confidence. Finally you will feel all-powerful and you will feel you can do everything, but in fact your brain and your mouth do not work together properly. Save the alcohol until after you finish speaking. Perhaps you want to accept the advice, but you may wonder if you can ever change the habits of a lifetime. Of course you can. Goethe, who lived before indoor skating rinks or swimming pools, said, "We learn to skate in the summer and swim in the winter". Take this message to heart and give yourself time to develop your new habits. If you are willing to change, you will soon be able to say that you will never forget these techniques because they became a part of your body.

单选题The restaurant has a good reputation .

单选题TV Games Shows One of the most fascinating things about television is the size of the audience. A novel can be on the "best sellers" list with a sale of fewer than 100, 000 copies, but a popular TV show might have 70 million TV viewers. TV can make anything or anyone well known overnight. This is the principle behind "quiz" or "game" shows, which put ordinary people on TV to play a game for the prize and money. A quiz show can make anyone a star, and it can give away thousands of dollars just for fun. But all of this money can create problems. For instance, in the 1950s, quiz shows were very popular in the U.S. and almost everyone watched them. Charles Van Doren, an English instructor, became rich and famous after winning money on several shows. He even had a career as a television personality. But one of the losers proved that Charles Van Doren was cheating. It turned out that the show's producers, who were pulling the strings, gave the answers to the most popular contestants beforehand. Why? Because if the audience didn't like the person who won the game, they turned the show off. Based on his story, a movie under the title Quiz Show is on 40 years later. Charles Van Doren is no longer involved with TV. But game shows are still here, though they aren't taken as seriously. In fact, some of them try to be as ridiculous as possible. There are shows that send strangers on vacation trips together, or that try to cause newly-married couples to fight on TV, or that punish losers by humiliating them. The entertainment now is to see what people will do just to be on TV. People still win money, but the real prize is to be in front of an audience of millions.

单选题We have to act within the existing legal framework. A. limit B. procedure C. status D. system

单选题I feel regret about what"s happened.

单选题Guests were scared when the bomb exploded.

单选题Fond industry relies mainly on agriculture for raw material.A. depends onB. dependent onC. derives fromD. derived from

单选题The proposal was {{U}}endorsed{{/U}} the majority of members. A. rejected B. submitted C. considered D. approved

单选题The town is Ufamous/U for its magnificent church towers.

单选题With the increasing unemployment rate, workers who are 50 to 60 years old are usually the first to be ______.A. laid offB. laid outC. laid asideD. laid up

单选题After examining the patient, the doctors could find no Uphysiological/U cause for his illness.

单选题Invisibility Ring Scientists can't yet make an invisibility cloak like the one that Harry Potter uses. But, for the first time, they've constructed a simple cloaking device that makes itself and something placed inside it invisible to microwaves. When a person "sees" an object, his or her eye senses many different waves of visible light as they bounce off the object. The eye and brain then work together to organize the sesensations and reconstruct the object's original shape. So, to make an object invisible, scientists have to keep waves from bouncing off it. And they have to make sure the object casts no shadow. Otherwise, the absence of reflected light on one side would give the object away. Invisibility isn't possible yet with waves of light that the human eye can see. But it is now possible with microwaves. Like visible light, microwaves are a form of radiant energy. They are part of the electromagnetic spectrum, which also includes radio waves, infrared light, ultraviolet rays, X rays, and gamma rays. The wave lengths of microwaves are shorter than those of radio waves but longer than those of visible light. The scientists' new "invisibility device" is the size of a drink coaster and shaped like a ring. The ring is made of a special material with unusual ability. When microwaves strike the ring, very few bounce off it. Instead, they pass through the ring, which bends the waves all the way around until they reach the opposite side. The waves then return to their original paths. To a detector set up to receive microwaves on the other side of the ring, it looks as if the waves never changed their paths as if there were no object in the way! So, the ring is effectively invisible. When the researchers put a small copper loop inside the ring, it, too, is nearly invisible. However, the cloaking device and anything inside it do cast a pale shadow. And the device works only for microwaves, not for visible light or any kind of electromagnetic radiation. So, Harry Potter's invisibility cloak doesn't have any real competition yet.

单选题With adequate support and {{U}}insight{{/U}}, all teachers can be active participants in excellent professional development.

单选题What is Turner likely to study next?