单选题Car Thieves Could Be Stopped Remotely (遥远地) Speeding off (超速行驶) in a stolen car, the thief thinks he has got a great catch. But he is in a nasty surprise. The car is fitted with a remote immobilizer (使车辆不能调动的装置), and a radio signal from a control center miles away will ensure that once the thief switches the engine 1 , he will not be able to start it again. For now, such devices 2 only available for fleets of trucks and specialist vehicles used on construction sites. But remote immobilization (使车辆不能调动) technology could soon start to trickle (慢慢地移动) down to ordinary cars, and 3 be available to ordinary cars in the UK 4 two months. The idea goes like this. A control box fitted to the car incorporates 5 miniature cellphone (移动电话，手机), a microprocessor and memory, and a GPS satellite positioning receiver. 6 the car is stolen, a coded cellphone signal will tell the unit to block the vehicle"s engine management system and prevent the engine 7 restarted. There are even plans for immobilizers 8 shut down vehicles on the move, though there are fears over the safety implications of such a system. In the UK, an array of technical fixes is already making 9 harder for car thieves. "The pattern of vehicles crime has changed," says Martyn Randall of Thatcham, a security research organization based in Berkshire that is funded in part 10 the motor insurance industry. He says it would only take him a few minutes to 11 a novice (新手，初学者) how to steal a car using a bare minimum of tools. But only if the car is more than 10 years old. Modern cars are a far tougher (艰苦的) proposition (任务), as their engine management computer will not 12 them to start unless they receive a unique ID code beamed out by the ignition (点火) key. In the UK, technologies like this 13 achieve a 31 percent drop in vehicle-related crime since 1997. But determined criminals are still managing to find other ways to steal cars. Often by getting hold of the owner"s keys in a burglary (盗窃). In 2000, 12 percent of vehicles stolen in the UK were taken using the owner"s keys double the previous year"s figure. Remote-controlled immobilization system would 14 a major new obstacle in the criminal"s way by making such thefts pointless. A group that includes Thatcham, the police, insurance companies and security technology firms have developed standards for a system that could go on the market sooner than the 15 expects.

单选题He was a little lightheaded since he just caught a cold.

单选题This is the sort of case in which judges must exercise the power.A. makeB. useC. haveD. display

单选题He accused that company of breaking the contract. A. tearing B. writing C. breaching D. concealing

单选题I don"t quite follow what she is saying.

单选题Reading Poem No poem should ever be discussed or "analyzed", until it has been read aloud by someone,teacher or student. Better still, perhaps, is the practice of reading it twice, once at the beginning of the discussion and once at the end, so the sound of the poem is the last thing one hears of it. All discussions of poetry are, in fact, preparations for reading it aloud, and the reading of the poem is, finally, the most telling "interpretation" of it, suggesting tone, rhythm, and meaning all at once. Hearing a poet read the work in his or her own voice, on records or on film, is obviously a special reward. But even those aids to teaching can not replace the student and teacher reading it or, best of all, reciting it. I have come to think, in fact, that time spent reading a poem aloud is much more important than "analyzing" it, if there isn't time for both. I think one of our goals as teachers of English is to have students love poetry. Poetry is "a criticism of life", "a heightening of life, enjoyment with others". It is "an approach to the truth of feeling", and it "can save your life". It also deserves a place in the teaching of languages and literature more central than it presently occupies. I am not saying that every English teacher must teach poetry. Those who don't like it should not be forced to put that dislike on anyone else, But those who do teach poetry must keep in mind a few things about its essential nature, about its sound as well as its sense, and they must make room in the classroom for hearing poetry as well as thinking about it.

单选题I didn't have much confidence in my talent as an actor.A. wisdomB. giftC. performanceD. show

单选题Immune Functions The immune system is equal in complexity to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communication network consisting of millions and millions of cells. Organized into sets and subsets,these cells pass information back and forth like clouds of bees flying around a hive (蜂巢). The result is a sensitive system of checks and balances that produces an immune response that is prompt, appropriate effective, and self-limiting. At the heart of the immune system is the ability to distinguish between self and no self. When immune defenders encounter cells or organisms carrying foreign or nonself molecules,the immune troops move quickly to eliminate the intruders(入侵者). Virtually every body cell carries distinctive molecules that identify it as self. The body's immune defenses do not normally attack tissues that carry a selfmarker. Rather, immune cells and other body cells coexist peaceably in s state known as self-toler-ance. When a normally functioning immune system attacks a nonself molecule, the system has the ability to"remember" the specifics of the foreign body. Upon subsequent encounters with the same species of molecules, the immune system reacts accordingly. With the possible exception of antibodies(抗体) passed during lactation (哺乳期]), this so called immune system memory is not inherited. Despite the occurrence of a virus in your family,your immune system must "learn" from experience with the many millions of distinctive nonself molecules in the sea of microbes (微生物)in which we live. Learning entails producing the appropriate molecules and cells to match up with and counteract each nonself invader. Any substance capable of triggering an immune response is called an antigen(抗原). Antigens are not to be confused with allergens (过敏原), which are most often harmless substances that provoke the immune system to set off the inappropriate and harmful response known as allergy. An antigen can be a virus, a bacterium or even a portion or product of one of these organisms. Tissues or cells from another individual also act as antigens;because the immune system recognizes transplanted tissues as foreign, it rejects them. The body will even reject nourishing proteins unless they are first brokendown by the digestive system into their primary, nonantigenic building blocks. An antigen announces its foreignness by means of intricate and characteristic shapes called epitopes(抗原表位),which protrude(突 出) from its surface. Most antigens, even the simplest microbes, carry several different kinds of epitopes on their surface; some may even carry several hundreds. Some epitopes will be more effective than others at stimulating an immune response. Only in abnormal situation does the immune system wrongly identify self as nonself and execute a misdirected immune attack.

单选题He lacked the strength to {{U}}deal with{{/U}} all these problems.

单选题"Tm not meddling". Mary said mildly."Tin just curious".A. gentlyB. shylyC. weaklyD. sweetly

单选题Have you ever suddenly felt that someone you know was in trouble-and he was? Have you ever dreamed something that came true later? Maybe you have ESP(超感官知觉). ESP stands for Extra Sensory Perception. It may be called a sixth sense. It seems to let people know about events before they happen, or events that are happening some distance away. Here is an example: A woman was doing washing. Suddenly she screamed. "My father is dead! I saw him sitting in the chair!' Just then, a telegram came. The woman's father had died of a heart attack. He died sitting in a chair. There are thousands of stories like this on record. Scientists are studying them to find out what is behind these strange mental messages. Here's another example--one of hundreds of dreams that have come true. A man dreamed he was walking along a road when a horse and carriage came by. The driver said, "There's room for one more." The man felt the driver was Death, so he ran away. The next day the man was getting on a crowded bus. The bus driver said, "There's room for one more." Then the man saw the driver's face was the same face he had seen in the dream. He wouldn't get on the bus. As the bus drove off, it crashed and burst into flames. Everyone was killed! Some people say stories like these are lies or coincidences. Others, including some scientists say that ESP is true. From studies of ESP, we may some day learn more about the human mind.

单选题Hundreds of buildings were wrecked by the earthquake. A. damaged B. shaken C. fallen D. jumped

单选题They have accomplished their mission successfully.

单选题There was something （peculiar） in the way he smiles.

单选题It was clear that they regarded him with affection, as well as with respect.A. appealB. angerC. anxietyD. love

单选题The poet William Carlos was a New Jersey physician.

单选题He tended his grandmother in the hospital.

单选题 An Observation and an Explanation It is worth looking at one or two aspects of the way a mother behaves towards her baby. The usual fondling, cuddling and cleaning requite little comment, but the position in which she holds the baby against her body when resting is rather revealing. Careful studies have shown the fact that 80 percent of mothers hold their infants in their left arms, holding them against the left side of their bodies. If asked to explain the significance of this preference most people reply that it is obviously the result of the predominance of right-handedness in the population. By holding the babies in their left arms, the mothers keep their dominant arm free for manipulations. But a detailed analysis shows that this is not the case. True, there is a slight difference between right-handed and left-handed females; but not enough to provide adequate explanation. It emerges that 83 percent of right-handed mothers hold the baby on the left side, but so do 78 percent of left-handed mothers. In other words, only 22 percent of the left-handed mothers have their dominant hands free for actions. Clearly there must be some other, less obvious explanation. The only other clue comes from the fact that the heart is on the side of the mother's body. Could it be that the sound of her heartbeat is the vital factor? And in what way? Thinking along these lines it was argued that perhaps during its existence inside the body of the mother the unborn baby get used to the sound of the heart beat. If this is so, then the re-discovery of this familiar sound after birth might have a claiming effect on the infant, especially as it has just been born into a strange and frighteningly new world; if this is so, then the mother would, somehow, soon arrive at the discovery that her baby is more at peace if held on the left against her heart than on the right.

单选题The department deferred the Udecision/U for six months.

单选题He was kept in appalling conditions in prison.