单选题At that time, we did not fully grasp the significance of what had happened.

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从 4个选项中选择1个最佳答案。 {{B}} Charter Schools{{/B}} American public education has changed in recant years. One change is that increasing numbers of American parents and teachers are starting independent public schools{{U}} (51) {{/U}}charter schools (特许学校). In 1991, there were no charter schools in the United States. Today, more than 2,300 charter schools{{U}} (52) {{/U}}in 34 states and the District of Columbia. 575,000 students{{U}} (53) {{/U}}these schools. The students are from 5 years of age through 18 or older. A charter school is{{U}} (54) {{/U}}by groups of parents, teachers and community (社区) members. It is similar in some ways{{U}} (55) {{/U}}a traditional public school. It receives tax money to operate just as other public schools do. The{{U}} (56) {{/U}}it receives depends on the number of students. The charter school must prove to local or state governments that its students are learning. These governments{{U}} (57) {{/U}}the school with the agreement, or charter that permits it to operate. Unlike a traditional public school,{{U}} (58) {{/U}}, the charter school does not have to obey most laws governing public schools. Local, state or federal governments cannot tell it what to{{U}} (59) {{/U}}. Each school can choose its own goals and decide the ways it wants to{{U}} (60) {{/U}}those goals. Class sizes usually are smaller than in many traditional public schools. Many students and parents say{{U}} (61) {{/U}}in charter schools can be more creative. However, state education agencies, local education-governing committees and unions often{{U}} (62) {{/U}}charter schools. They say these schools may receive money badly{{U}} (63) {{/U}}by traditional public schools. Experts say some charter schools are doing well while others are struggling. Congress provided 200 million dollars for{{U}} (64) {{/U}}charter schools in the 2002 federal budget (预算). But, often the schools say they lack enough money for their{{U}} (65) {{/U}}. Many also lack needed space.

单选题Grouping of students within the classroom occurs primarily at the elementary level. This organizational arrangement places students together in two or more groups in the classroom to improve the learning conditions for those students. Grouping in reading places students of the same achievement level together to enable the teacher to more easily work with them. Grouping, however, is becoming more popular in other subjects, and for other purposes. Cooperative (协作的) learning groups, for example, place students of different abilities in the same group, and the students within that group help each other on assignments. These programs have been shown to he effective in raising students' achievement as well as improving their social skills and attitudes toward one another. Students of the same achievement level are grouped together so thatA. they can help each other on assignments.B. they can improve their social skills.C. they can improve their attitudes towards one another.D. the teacher can work easily with them.

单选题When did you first encounter these difficulties?

单选题{{B}}第三篇{{/B}} {{B}} A Minor Microsurgery{{/B}} Last year, Sean Martinovich, from Whitianga, had life-saving surgery when a golf-sized tumor was removed from his brain stem. But the operation left half his face paralysed. He talked with a slur, sometimes dribbled out of the side of his mouth and could not close his eye properly. Although he could run around with the other boys in the playground, when they laughed he could not laugh with them. Without a smile, he could suffer psychologically and emotionally. Last week, 6-year-old Sean had seven hours of microsurgery that should give him back his smile. Doctor Bartlett removed a nerve from the back of one of Sean's legs and transplanted it into his face. On the normal side of his face the nerve divides into lots of little branches. "We'll cut those nerve branches and then we'll take a nerve graft from one leg and tunnel it across his face from one side to the other and join that on to the nerve that's been cut on the good side of his face. " Doctor Bartlett said, before the operation. "If this was not fixed he could face physical and emotional problems as he got older," Doctor Bartlett said. "Socially people can become quite withdrawn because of the face paralysis. It's easy for people, especially children, to become rather emotionless because they prefer the flatness of no movement on either side to the weirdness of an asymmetry of smiling on one side and having this twisted face. " Scan is not smiling yet. Over the next six months the nerves will grow across the face to the damaged side and after that movement will hopefully come back. Sean's parents, Steve and Wendy Martinovich, said they had been through a year of hell. But their son was a determined boy who just got on with it, said Mrs Martinovich. They are amazed at the technology that they hope will restore the cheeky smile they love so much. For Doctor Bartlett the microsurgery is almost routine. For Sean's parents, it is a miracle.

单选题 Adaptation of Living Things Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. Among the superior characteristics developed through adaptation are those that may help in getting food or shelter, in providing protection, and in producing and protecting the young. That results in the evolution of more and more organisms that are better fitted to their environments. Each living thing is adapted to its way of life in a general way, but each is adapted especially to its own distinct class. A plant, for example, depends upon its roots to fix itself firmly and to absorb water and inorganic chemicals. It depends upon its green leaves for using the sun's energy to make food from inorganic chemicals. These are general adaptations, common to most plants. In addition, there are special adaptations that only certain kinds of plants have. Many animals have adaptations that help them escape from their enemies. Some insects are hidden by their body color or shape, and many look like a leaf or a little branch. The coats of deer are colored to mix with the surroundings. Many animals have the ability to remain completely still when an enemy is near. Organisms have a great variety of ways of adapting. They may adapt in their structure, function, and genetics; in their development and production of the young; and in other respects. An organism may create its own environment, as do warm-blooded mammals, which have the ability to adjust body heat exactly to maintain their ideal temperature despite changing weather. Usually adaptations are an advantage, but sometimes an organism is so well adapted to a particular environment that, if conditions change, it finds it difficult or impossible to readapt to the new conditions.

单选题The new wing of the National Art Gallery in Washington, D. C., {{U}}drew{{/U}} twenty-two thousand visitors on its opening day.

单选题Pandemic H1N1 2009 The most active areas of pandemic influenza transmission currently are in central and eastern European countries. A high intensity of respiratory diseases activity (51) concurrent circulation of pandemic influenza still (52) parts of southern and eastern Europe, (53) in Greece, Poland, and Ukraine. In Western Europe, influenza (54) remains active and widespread, but overall disease activity has peaked. All influenza viruses in Western Europe were pandemic H 1N1 2009, however, very small (55) of seasonal influenza viruses, covering less than 1% of all influenza viruses (56) , were reported in Russia. (57) , limited available data indicate that active, high intensity transmission is occurring in Northern African countries (58) the Mediterranean coast. In Central Asia, limited data (59) that influenza virus circulation remains active, but transmission may have recently peaked in some places. In West Asia, Israel, Iran, and Iraq also appear (60) their peak period of transmission within the past month, though (61) areas continue to have some active transmission and levels of respiratory disease activity have not yet returned to baseline levels. In East Asia, influenza transmission remains active but appears to be (62) overall. (63) increases in ILI were reported in Mongolia after weeks of declining activity following a large peak of activity over one month ago. In North America, influenza transmission (64) widespread but has declined quickly in all countries. In the tropical regions of Central and South America and the Caribbean, influenza transmission remains geographically widespread but overall disease activity has been declining or remains unchanged in most parts, (65) focal increases in respiratory disease activity in a few countries.

单选题Our lives are intimately bound up with theirs.

单选题Excessive Demands on Young People Being able to multitask is hailed by most people as a welcome skill, but not according to a recent study which claims that young people between the ages of eight and eighteen of the so-called Generation M are spending a considerable amount of their time in fruitless efforts as they multitask. It argues that, in fact, these young people are frittering(浪费)away as much as half of their time as they would if they performed the very same tasks one after the other. Some young people are using an ever larger number of electronic devices as they study. At the same time they are working, young adults are also surfing on the Internet, or sending out emails to their friends, and/or answering the telephone and listening to music on their iPods or on another computer. As some new device comes along, it is also added to the list rather than replacing one of the existing devices. Other research has indicated that this multitasking is even affecting the way families themselves function as young people are too wrapped up in(沉湎于)their own isolated worlds to interact with the other people around them. They can no longer greet family members when they enter the house nor can they eat at the family table. All this electronic wizardry(魔力)is supposedly also seriously affecting young people's performance at university and in the workplace. When asked about their opinions of the impact of modern gadgets(小装置)on their performance of tasks, the great majority of young people gave a favourable response. The response from the academic and business worlds was not quite as positive. The former feel that multitasking with electronic gadgets by children affects later development of study skills, resulting in a decline in the quality of writing, for example, because of the lack of concentration on task completion. They feel that many undergraduates now urgently need remedial(补救的)help with study skills. Similarly, employers feel that young people entering the workforce need to be taught all over again, as they have become skilled. While all this may be true, it must be borne in mind that more and more is expected of young people nowadays; in fact, too much. Praise rather than criticism is due in respect of the way today's youth are able to cope despite what the older generation throw at them.

单选题The parents have to restrain their daughter from playing nearby factories.

单选题John has always remained loyal to his family and friends.

单选题Dancing in the Streets If there is one thing certain to get Brazilians on their feet, it is the Rio Carnival(狂欢节). Held in Rio de Janeiro. the country's biggest city. the carnival began on February 20. when the mayor gave key of the city to Rei Momo—the Lord of Misrule(无序之皇) On his orders, each year people turn the city into a paradise of dance and music. The following six days are so fun of parades, street dancing, fantastic clothes and partying(聚会)that many people forget about eating and sleeping "It was the passion of the carnival that attracted me to Brazil and made me settle down in Rio. "said Bob Nadkarni. a British man who has lived in the city for several years For many Brazilians. the centrepiece of the carnival is samba(桑巴舞), a typical Brazilian dance. Every year,tens of thousands of visitors and locals show off their passion and energy iu the streets. following the beat(节拍)of the Latin music. The climax to this street party is the float(彩车)parade, in which floats decorated with tons of fresh flowers by various samba schools and local communities move through the city. On the top of each float stands the candidate for the Drum Queen, who is chosen at the end of the party. while most people are free to enjoy the celebrations. Rio's police officers have to keep a clear head. Following the murder of three offlcers in a gunfight early last week, the Brazilian Government has tightened security in Rio. The street fighting, robbery and sex crimes that accompany the carnival are very difficult to police. Carnivals began in ancient Rome as a celebration at which people fed wild wolves, in honour of the city's founder who was said to have been raised by a she—wolf. Brazil gave new life to this tradition and so. despite the troubles. the carnival will remain a symbol of the country's culture.

单选题How Ford Turn Out Cars When it comes to singling out those who have made a difference in all our lives,you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars--one, strange to say, that originated in slaughterhouses. Back in the early 1900's,slaughterhouses used what could have been called a "disassembly line. "Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto. Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David of the University of Delaware, an expert on industrial development ,tells what happened: "The previous day,workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day,on the line,the assembly team averaged one every 13 minutes and 10 seconds per person. " Within a year,the time had been reduced to five minutes. In 1913,Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed past workers who completed them on piece at a time. It wasn't long before Ford was turning out several hundred thousand cars a year,a remarkable achievement then. And so efficient and economical was this new system that he cup the price of his cars in half,to $ 260,putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers the world over copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, aided by robots and other forms of automation,everything from toasters to perfumes are made on assembly lines.

单选题Jumping spiders have excellent eyesight and can see their prey from a distance twenty times their own length.

单选题Accompanied by {{U}}cheerful{{/U}} music, we began to dance. A. pleasant B. colorful C. fashionable D. different

单选题The farmers also want to use the water to irrigate the barren land. A. empty B. hairless C. smooth D. bare

单选题They agreed to settle the dispute by peaceful means.

单选题Relief workers were shocked by what they saw.

单选题He decided to overcome his shortcomings. A. convert B. convict C. conquer D. convey