There’s no doubt that nanotechnology promises so much for civilization. However, all new technologies have their teething problems, And with nanotechnology, society often gets the wrong idea about its capabilities. Numerous science-fiction books and movies have raised people’s fears about nanotechnology ---with scenarios such as inserting little nano-robots into your body that monitor everything you do without you realizing it,or self-replicating nano-robots that eventually take over the world. So how do we safeguard such a potentially powerful technology? Some scientists recommend that nano-particles be treated as new chemicals with separate safety tests and clear labelling. They believe that greater care should also be taken with nano-particles in laboratories and factories. Others have called for a withdrawal of new nano products such as cosmetics and a temporary halt to many kinds of nanotech research. But as far as I’m concerned there’s a need to plough ahead with the discoveries and applications of nanotechnology.I really believe that most scientists would welcome a way to guard against unethical uses of such technology. We can’t go around thinking that all innovation is bad.all advancement is bad. As with the debate about any new technology.it is how you use it that’s important.So let’s look at some of its possible uses. Thanks to nanotechnology, there could be a major breakthrough in the field of transportation with the production of more durable metals. These could be virtually unbreakable, lighter and much more pliable leading to planes that are 50 times lighter than at present. Those same improved capabilities will dramatically reduce the cost of traveling into space making it more accessible to ordinary people and opening up a totally new holiday destination. In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes. We need nanotechnology in order to create a new generation of computers that will work even faster and will have a million times more memory but will be about the size of a sugar cube. Nanotechnology could also revolutionise the way that we generate power .The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.In this passage the author tells us that one problem with nanotech is that___A. it could threaten our way of lifeB. It is misunderstood by the publicC. It could be used to spy on people D. We only see nanotechology in some books and movies
There’s no doubt that nanotechnology promises so much for civilization. However, all new technologies have their teething problems, And with nanotechnology, society often gets the wrong idea about its capabilities. Numerous science-fiction books and movies have raised people’s fears about nanotechnology ---with scenarios such as inserting little nano-robots into your body that monitor everything you do without you realizing it,or self-replicating nano-robots that eventually take over the world.
So how do we safeguard such a potentially powerful technology? Some scientists recommend that nano-particles be treated as new chemicals with separate safety tests and clear labelling. They believe that greater care should also be taken with nano-particles in laboratories and factories. Others have called for a withdrawal of new nano products such as cosmetics and a temporary halt to many kinds of nanotech research.
But as far as I’m concerned there’s a need to plough ahead with the discoveries and applications of nanotechnology.I really believe that most scientists would welcome a way to guard against unethical uses of such technology. We can’t go around thinking that all innovation is bad.all advancement is bad. As with the debate about any new technology.it is how you use it that’s important.So let’s look at some of its possible uses.
Thanks to nanotechnology, there could be a major breakthrough in the field of transportation with the production of more durable metals. These could be virtually unbreakable, lighter and much more pliable leading to planes that are 50 times lighter than at present. Those same improved capabilities will dramatically reduce the cost of traveling into space making it more accessible to ordinary people and opening up a totally new holiday destination.
In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes. We need nanotechnology in order to create a new generation of computers that will work even faster and will have a million times more memory but will be about the size of a sugar cube. Nanotechnology could also revolutionise the way that we generate power .The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.
In this passage the author tells us that one problem with nanotech is that___
So how do we safeguard such a potentially powerful technology? Some scientists recommend that nano-particles be treated as new chemicals with separate safety tests and clear labelling. They believe that greater care should also be taken with nano-particles in laboratories and factories. Others have called for a withdrawal of new nano products such as cosmetics and a temporary halt to many kinds of nanotech research.
But as far as I’m concerned there’s a need to plough ahead with the discoveries and applications of nanotechnology.I really believe that most scientists would welcome a way to guard against unethical uses of such technology. We can’t go around thinking that all innovation is bad.all advancement is bad. As with the debate about any new technology.it is how you use it that’s important.So let’s look at some of its possible uses.
Thanks to nanotechnology, there could be a major breakthrough in the field of transportation with the production of more durable metals. These could be virtually unbreakable, lighter and much more pliable leading to planes that are 50 times lighter than at present. Those same improved capabilities will dramatically reduce the cost of traveling into space making it more accessible to ordinary people and opening up a totally new holiday destination.
In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes. We need nanotechnology in order to create a new generation of computers that will work even faster and will have a million times more memory but will be about the size of a sugar cube. Nanotechnology could also revolutionise the way that we generate power .The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.
In this passage the author tells us that one problem with nanotech is that___
A. it could threaten our way of life
B. It is misunderstood by the public
C. It could be used to spy on people
D. We only see nanotechology in some books and movies
B. It is misunderstood by the public
C. It could be used to spy on people
D. We only see nanotechology in some books and movies
参考解析
解析：
相关考题：
–I am worried about my son’s eyesight so much.–() A、He always takes books so close to his eyes.B、You think too much.C、There’s nothing special.D、Maybe you can take him to have a check.
Passage TwoQuestions 26 to 30 are based on the following passage.A few years ago it was fashionable to speak of a generation gap，a division between young people and their elders. Parents complained that children did not show them proper respect and obedience，while children complained that their parents did not understand them at all. What had gone wrong? Why had the generation gap suddenly appeared? Actually，the generation gap has been around for a long time. Many critics argue that it is built into the fabric of our society.One important cause of the generation gap is the opportunity that young people have to choose their own life styles. In more traditional societies，when children grow up，they are expected to live in the same area as their parents，to marry people that their parents know and approve of，and often to continue the family occupation. In our society，young people often travel great distances for their educations，move out of the family home at an early age，marry-or live with-people whom their parents have never met，and choose occupations different from those of their parents.In our upwardly mobile society，parents often expect their children to do better than they did：to find better jobs，to make more money，and to do all the things that they were unable to do. Often，however，the ambitions that parents have for their children are another cause of the division between them. Often，they discover that they have very little in common with each other.Finally，the speed at which changes take place in our society is another cause of the gap between the generations. In a traditional culture，elderly people are valued for their wisdom，but in our society the knowledge of a lifetime may become obsolete overnight. The young and the old seem to live in two very different worlds，separated by different skills and abilities.No doubt，the generation gap will continue to be a feature of American life for some time to come. Its causes are rooted in the freedoms and opportunities of our society，and in the rapid pace at which society changes.The main idea of the first paragraph is that______.A. the generation gap suddenly appearedB. the generation gap is a feature of American lifeC. how people can reduce the generation gapD. many critics argue over the nature of the generation gap
BWhen something goes wrong，it can be very satisfying to say，”Well,it’s so-and-so’s fault.”or “I know I’m late，but it’s not my fault；the car broke down.”It is probably not your fault，but once you form. the habit of blaming somebody or something else for a bad situation，you are a loser. You have no power and could do nothing that helps change the situation. However,you can have great power over what happens to you if you stop focusing on whom to blame and start focusing on how to remedy the situation. This is the winner’s key to success.Winners are great at overcoming problems. For example, if you were late because your car broke down, maybe you need to have your car examined more regularly. Or, you might start to carry along with you the useful phone numbers, so you could call for help when in need. For another example, if your colleague causes you problems on the job for lack of responsibility or ability, find ways of dealing with his irresponsibility or inability rather than simply blame the person. Ask to work with a different person, or don’t rely on the person. You should accept that the person. Ask to work with a different person, or don’t rely on this person. You should accept that the person is not reliable and find creative ways to work successfully regardless of how your colleague fails to do his job well.This is what being a winner is all about—creatively using your skills and talents so that you are successful no matter what happens. Winners don’t have fewer problems in their lives; they have just as many difficult situations to face as anybody else. They are just better at seeing those problems as challenges and opportunities to develop their own talents. So, stop focusing on “whose fault it is.” Once you are confident about your power over bad situations, problems are just stepping stop on for success.46. According to the passage, winners __________ .A. deal with problems rather than blame othersB. meet with fewer difficulties in their livesC. have responsible and able colleaguesD. blame themselves rather that others
—What about going for a walk? —________________.A.It’s good for youB.That’s all rightC.So, do ID.Why not? A good idea
There’s no doubt that nanotechnology promises so much for civilization. However, all new technologies have their teething problems, And with nanotechnology, society often gets the wrong idea about its capabilities. Numerous science-fiction books and movies have raised people’s fears about nanotechnology ---with scenarios such as inserting little nano-robots into your body that monitor everything you do without you realizing it,or self-replicating nano-robots that eventually take over the world. So how do we safeguard such a potentially powerful technology? Some scientists recommend that nano-particles be treated as new chemicals with separate safety tests and clear labelling. They believe that greater care should also be taken with nano-particles in laboratories and factories. Others have called for a withdrawal of new nano products such as cosmetics and a temporary halt to many kinds of nanotech research. But as far as I’m concerned there’s a need to plough ahead with the discoveries and applications of nanotechnology.I really believe that most scientists would welcome a way to guard against unethical uses of such technology. We can’t go around thinking that all innovation is bad.all advancement is bad. As with the debate about any new technology.it is how you use it that’s important.So let’s look at some of its possible uses. Thanks to nanotechnology, there could be a major breakthrough in the field of transportation with the production of more durable metals. These could be virtually unbreakable, lighter and much more pliable leading to planes that are 50 times lighter than at present. Those same improved capabilities will dramatically reduce the cost of traveling into space making it more accessible to ordinary people and opening up a totally new holiday destination. In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes. We need nanotechnology in order to create a new generation of computers that will work even faster and will have a million times more memory but will be about the size of a sugar cube. Nanotechnology could also revolutionise the way that we generate power .The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.The underlined word”pliable”(line, Para.4) can be replaced by_.A. durable B. straight C. bentD. unbreakable
There’s no doubt that nanotechnology promises so much for civilization. However, all new technologies have their teething problems, And with nanotechnology, society often gets the wrong idea about its capabilities. Numerous science-fiction books and movies have raised people’s fears about nanotechnology ---with scenarios such as inserting little nano-robots into your body that monitor everything you do without you realizing it,or self-replicating nano-robots that eventually take over the world. So how do we safeguard such a potentially powerful technology? Some scientists recommend that nano-particles be treated as new chemicals with separate safety tests and clear labelling. They believe that greater care should also be taken with nano-particles in laboratories and factories. Others have called for a withdrawal of new nano products such as cosmetics and a temporary halt to many kinds of nanotech research. But as far as I’m concerned there’s a need to plough ahead with the discoveries and applications of nanotechnology.I really believe that most scientists would welcome a way to guard against unethical uses of such technology. We can’t go around thinking that all innovation is bad.all advancement is bad. As with the debate about any new technology.it is how you use it that’s important.So let’s look at some of its possible uses. Thanks to nanotechnology, there could be a major breakthrough in the field of transportation with the production of more durable metals. These could be virtually unbreakable, lighter and much more pliable leading to planes that are 50 times lighter than at present. Those same improved capabilities will dramatically reduce the cost of traveling into space making it more accessible to ordinary people and opening up a totally new holiday destination. In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes. We need nanotechnology in order to create a new generation of computers that will work even faster and will have a million times more memory but will be about the size of a sugar cube. Nanotechnology could also revolutionise the way that we generate power .The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.In the author’s opinion, research into nanotechnology probably means that it_A. has yet to win popular support B. ought to be continuedC. could be seen as unethicalD. can replicate people completely
There’s no doubt that nanotechnology promises so much for civilization. However, all new technologies have their teething problems, And with nanotechnology, society often gets the wrong idea about its capabilities. Numerous science-fiction books and movies have raised people’s fears about nanotechnology ---with scenarios such as inserting little nano-robots into your body that monitor everything you do without you realizing it,or self-replicating nano-robots that eventually take over the world. So how do we safeguard such a potentially powerful technology? Some scientists recommend that nano-particles be treated as new chemicals with separate safety tests and clear labelling. They believe that greater care should also be taken with nano-particles in laboratories and factories. Others have called for a withdrawal of new nano products such as cosmetics and a temporary halt to many kinds of nanotech research. But as far as I’m concerned there’s a need to plough ahead with the discoveries and applications of nanotechnology.I really believe that most scientists would welcome a way to guard against unethical uses of such technology. We can’t go around thinking that all innovation is bad.all advancement is bad. As with the debate about any new technology.it is how you use it that’s important.So let’s look at some of its possible uses. Thanks to nanotechnology, there could be a major breakthrough in the field of transportation with the production of more durable metals. These could be virtually unbreakable, lighter and much more pliable leading to planes that are 50 times lighter than at present. Those same improved capabilities will dramatically reduce the cost of traveling into space making it more accessible to ordinary people and opening up a totally new holiday destination. In terms of technology, the computer industry will be able to shrink computer parts down to minute sizes. We need nanotechnology in order to create a new generation of computers that will work even faster and will have a million times more memory but will be about the size of a sugar cube. Nanotechnology could also revolutionise the way that we generate power .The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.It can be deduced from the passage that___A. the use of Nanotcech could eventually take over the worldB. Nanotech has few implications affecting us in many waysC. it is too expensive to make solar energyD. it is possible users are very helpful and beneficial to humans
共用题干Science Fiction1 Amongst the most popular books being written today are those which are usually classified as science fiction.Hundreds of titles are published every year and are read by all kinds of people.Furthermore,some of the most successful films of recent years have been based on science fiction stories.2 It is often thought that science fiction is a fairly new development in literature,but its ancestors can be found in books written hundreds of years ago.These books were often concerned with the presentation of some form of ideal society,a theme which is still often found in modern stories.3 Most of the classics of science fiction,however,have been written within the last hundred years. Books by writers such as Jules Verne and H.G.Wells,to mention just two well-known authors,have been translated into many languages.4 Modern science fiction writers don ' t write about men from Mars（火星）or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future worlds which are a reflection of the world which we live in now.Because of this,their writing has obvious political undertones（含义）.5 In an age where science fact frequently overtakes（超过）science fiction , the writers may find it difficult to keep ahead of scientific advances.Those who are sufficiently clear-sighted to see the way we are going,however,may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology.Paragraph 3______A:Popularity of Science FictionB:A Fairly New DevelopmentC:Classics of Science FictionD:Difficulty in Keeping Ahead of Scientific AdventureE:Its OriginF:Themes of Modern Science Fiction
共用题干Science Fiction1 Amongst the most popular books being written today are those which are usually classified as science fiction.Hundreds of titles are published every year and are read by all kinds of people.Furthermore,some of the most successful films of recent years have been based on science fiction stories.2 It is often thought that science fiction is a fairly new development in literature,but its ancestors can be found in books written hundreds of years ago.These books were often concerned with the presentation of some form of ideal society,a theme which is still often found in modern stories.3 Most of the classics of science fiction,however,have been written within the last hundred years. Books by writers such as Jules Verne and H.G.Wells,to mention just two well-known authors,have been translated into many languages.4 Modern science fiction writers don ' t write about men from Mars（火星）or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future worlds which are a reflection of the world which we live in now.Because of this,their writing has obvious political undertones（含义）.5 In an age where science fact frequently overtakes（超过）science fiction , the writers may find it difficult to keep ahead of scientific advances.Those who are sufficiently clear-sighted to see the way we are going,however,may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology.The writers find it difficult______.A:concerned with the problems to solve in the futureB:to keep ahead of scientific advancesC:have political implicationD:a current themeE:read worldwideF:a reciirrent theme
共用题干Science Fiction1 Amongst the most popular books being written today are those which are usually classified as science fiction.Hundreds of titles are published every year and are read by all kinds of people.Furthermore,some of the most successful films of recent years have been based on science fiction stories.2 It is often thought that science fiction is a fairly new development in literature,but its ancestors can be found in books written hundreds of years ago.These books were often concerned with the presentation of some form of ideal society,a theme which is still often found in modern stories.3 Most of the classics of science fiction,however,have been written within the last hundred years. Books by writers such as Jules Verne and H.G.Wells,to mention just two well-known authors,have been translated into many languages.4 Modern science fiction writers don ' t write about men from Mars（火星）or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future worlds which are a reflection of the world which we live in now.Because of this,their writing has obvious political undertones（含义）.5 In an age where science fact frequently overtakes（超过）science fiction , the writers may find it difficult to keep ahead of scientific advances.Those who are sufficiently clear-sighted to see the way we are going,however,may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology.Some form of ideal society is______.A:concerned with the problems to solve in the futureB:to keep ahead of scientific advancesC:have political implicationD:a current themeE:read worldwideF:a reciirrent theme
共用题干A Good IdeaNo satisfactory way exists to explain how to form a good idea. You think about a problem until you're tired,forget it,maybe sleep on it,and then flash!When you aren't thinking about it,suddenly the answer arrives as a gift from the gods.Of course,all ideas don't occur like that but so many do,particularly the most important ones. They burst into the mind,glowing with the heat of creation.How they do it is a mystery,but they must come from somewhere.Let's assume they come from the"unconscious".This is reasonable,for psychologists use this term to describe mental processes,which are unknown to the individual.Creative thought depends on what was unknown becoming known.All of us have experienced this sudden arrival of a new idea,but it is easiest to examine it in the great creative personalities,many of whom experienced it in an intensified form and have written it down in their life stories and letters.One can draw examples from genius in any field,from religion,philosophy,and literature to art and music,even in mathematics,science,and technical invention,although these are often thought to depend only on logic and experiment.All truly creative activities depend in some degree on these signals from the unconscious,and the more highly insightful the person,the sharper and more dramatic the signals become.A good idea often comes to us out of expectation.A:Right B:Wrong C:Not mentioned
Californian Michael Schwabe said goodbye to the gas pump two years ago．He leased an electric car．Schwabe says he gets more out of driving an electric car than just a charge."With the price of gasoline and with the problems with clean air,it's important we get electric vehicles out on the road."On California roads there are about two thousand electric cars．By 2003,ten percent of all new cars may be required to have zero emissions．This is a mandate automakers say it is way ahead of its time.Gloria Bergquist of the Alliance of Auto Manufacturers says,"The technology(for zero emissions)isn't here yet;it still needs advancement in driving range to make it more appealing to a wider consumer audience."Auto makers blame it on the batteries．Power runs out on most cars after about 70 miles．However,some cars can now go more than 100 miles on a charge．Batteries are expensive．Carmakers say there is nothing they can do about it.Tim Carmichael of the Clean Air Coalition says,"The automakers have not built a vehicle unless required to do so,so it's very important for the state to stay committed to this program requiting automakers to build small amounts in beginning years and then the market will take off."Right now the California Air Resources Board requires that a percentage of new cars sold should be free of emissions．What is that percentage?A.1%．B.5%．C.10%．D.100%.
共用题干第三篇Generation GapA few years ago,it was fashionable to speak of a generation gap,a division between young people and their elders.Parents complained that children did not show them proper respect and obedience,while children complained that their parents did not understand them at all.What had gone wrong?Why had the generation gap suddenly appeared?Actually,the generation gap has been around for a long time.Many critics argue that it is built into the fabric of our society.One important cause of the generation gap is the opportunity that young people have to choose their own life styles.In more traditional societies,when children grow up,they are expected to live in the same area as their parents,to marry people that their parents know and approve of,and often to continue the family occupation. In our society,young people often travel great distances for their education,most out of the family home at an early age,marry or live or choose occupations different from those of their parents.In our upwardly mobile society,parents often expect their children to do better than they did: to find better jobs,to make more money,and to do all the things that they were unable to do.Often,however,the ambitions that parents have for their children are another cause of the division between them.Often they dis-cover that they have very little in common with each other.Finally,the speed at which changes take place in our society is another cause of the gap between the generations.In a traditional culture,elderly people are valued for their wisdom,but in our society the knowledge of a lifetime may become obsolete overnight.The young and the old seem to live in two very different worlds,separated by different skills and abilities. No doubt,the generation gap will continue to be a feature of American life for some time to come.Its causes are rooted in the freedoms and opportunities of our society,and in the rapid pace at which society changes.The main idea of the first paragraph is that________.A:the generation gap suddenly appearedB:the generation gap is a feature of American lifeC:how people can bridge the generation gapD:many critics argue over the nature of the generation gap
共用题干Generation Gap A few years ago,it was fashionable to speak of a generation gap,a division between young people and their elders.Parents complained that children did not show them proper respect and obedience,while children complained that their parents did not understand them at all.What had gone wrong?Why had the generation gap suddenly appeared?Actually,the generation gap has been around for a long time.Many critics argue that it is built into the fabric of our society. One important cause of the generation gap is the opportunity that young people have to choose their own life styles.In more traditional societies,when children grow up,they are expected to live in the same area as their parents,to marry people that their parents know and approve of, and often to continue the family occupation.In our society,young people often travel great distances for their education,most out of the family home at an early age,marry or live or choose occupations different from those of their parents. In our upwardly mobile society,parents often expect their children to do better than they did:to find better jobs,to make more money,and to do all the things that they were unable to do.Often,however,the ambitions that parents have for their children are another cause of the division between them.Often they dis-cover that they have very little in common with each other. Finally,the speed at which changes take place in our society is another cause of thie gap between the generations.In a traditional culture,elderly people are valued for their wisdom,but in our society the knowledge of a lifetime may become obsolete overnight. The young and the old seem to live in two very different worlds,separated by different skills and abilities, No doubt,the generation gap will continue to be a feature of American life for some time to come.Its causes are rooted in the freedoms and opportunities of our society,and in the rapid pace at which society changes.The word"around"in Paragraph 1 means_____＿.A:on all sides B:in every directionC:near D:in existence
共用题干第三篇Generation GapA few years ago,it was fashionable to speak of a generation gap,a division between young people and their elders.Parents complained that children did not show them proper respect and obedience,while children complained that their parents did not understand them at all.What had gone wrong?Why had the generation gap suddenly appeared?Actually,the generation gap has been around for a long time.Many critics argue that it is built into the fabric of our society.One important cause of the generation gap is the opportunity that young people have to choose their own life styles.In more traditional societies,when children grow up,they are expected to live in the same area as their parents,to marry people that their parents know and approve of,and often to continue the family occupation. In our society,young people often travel great distances for their education,most out of the family home at an early age,marry or live or choose occupations different from those of their parents.In our upwardly mobile society,parents often expect their children to do better than they did: to find better jobs,to make more money,and to do all the things that they were unable to do.Often,however,the ambitions that parents have for their children are another cause of the division between them.Often they dis-cover that they have very little in common with each other.Finally,the speed at which changes take place in our society is another cause of the gap between the generations.In a traditional culture,elderly people are valued for their wisdom,but in our society the knowledge of a lifetime may become obsolete overnight.The young and the old seem to live in two very different worlds,separated by different skills and abilities. No doubt,the generation gap will continue to be a feature of American life for some time to come.Its causes are rooted in the freedoms and opportunities of our society,and in the rapid pace at which society changes.In American society,young people often________.A:rely on their parents to make a livingB:stay with their parents in order to get an opportunity for higher educationC:seek the best advice fromn their parentsD:have very little in common with their parents
Among the most popular books being written today are those which are usually classified as science fiction. Hundreds of titles are published every year and are read by all kinds of people.Furthermore, some of the most successful films in recent years have been based on science fiction stories.It is often thought that science fiction is a fairly new development in literature, but it can be found in books written hundreds of years ago. These books were often concerned with the presentation of some form of ideal society, a theme which is still often found in modern stories.Most of the classics of science fiction, however, have been written within the last hundred years. Books by writers such as Jules Verne and H.G. Wells, to mention just two well-knownauthors, have been translated into many languages. Modern science fiction writers don't write about men from Mars or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future world which are a reflection of the world which we live in now. Because of this their writing has obviously political undertones.In an age where science fact frequently overtakes science fiction, the writers may find it difficult to keep ahead of scientific advances. Those who are sufficiently clear-sighted to see the way we are going, however, may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology.In the past, science fiction was probably concerned with查看材料A.men from Mars or space adventures storiesB.prediction the results of technical developments on societyC.predicting the human mindD.imagining future worlds which are a reflection of the modern world
Among the most popular books being written today are those which are usually classified as science fiction. Hundreds of titles are published every year and are read by all kinds of people.Furthermore, some of the most successful films in recent years have been based on science fiction stories.It is often thought that science fiction is a fairly new development in literature, but it can be found in books written hundreds of years ago. These books were often concerned with the presentation of some form of ideal society, a theme which is still often found in modern stories.Most of the classics of science fiction, however, have been written within the last hundred years. Books by writers such as Jules Verne and H.G. Wells, to mention just two well-knownauthors, have been translated into many languages. Modern science fiction writers don't write about men from Mars or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future world which are a reflection of the world which we live in now. Because of this their writing has obviously political undertones.In an age where science fact frequently overtakes science fiction, the writers may find it difficult to keep ahead of scientific advances. Those who are sufficiently clear-sighted to see the way we are going, however, may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology.Which of the following statements can't prove that science fiction is very popular today 查看材料A.Hundreds of titles are published every year.B.All kinds of people love it.C.Some of the most successful films of recent years have been based on science fiction stories.D.Science fiction can be found in books written hundreds of years ago.
Among the most popular books being written today are those which are usually classified as science fiction. Hundreds of titles are published every year and are read by all kinds of people.Furthermore, some of the most successful films in recent years have been based on science fiction stories.It is often thought that science fiction is a fairly new development in literature, but it can be found in books written hundreds of years ago. These books were often concerned with the presentation of some form of ideal society, a theme which is still often found in modern stories.Most of the classics of science fiction, however, have been written within the last hundred years. Books by writers such as Jules Verne and H.G. Wells, to mention just two well-knownauthors, have been translated into many languages. Modern science fiction writers don't write about men from Mars or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future world which are a reflection of the world which we live in now. Because of this their writing has obviously political undertones.In an age where science fact frequently overtakes science fiction, the writers may find it difficult to keep ahead of scientific advances. Those who are sufficiently clear-sighted to see the way we are going, however, may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to master its new technology.The best title of the passage may probably be查看材料A.Science FictionB.The Popularity of Science FictionC.The Origin of Science FictionD.The Themes of Science Fiction
There's a new cafeteria at the corner. How about going there for supper? （）A、Fine. But it‘s my treat this time.B、It‘s newly decorated.C、Let‘s look at the menu first.D、I have no idea about what to order.
问答题Practice 3 The shotgun marriage of chemistry and engineering called “Nanotechnology” is ushering in the era of serf-replicating machinery and serf-assembling consumer goods made from cheap raw atoms. Nanotechnology is molecular manufacturing or, more simply, building things one atom or molecule at a time with programmed baroscopic robot arms. A nanometer is one billionth of a meter (3-4 atoms wide). Utilizing the well understood chemical properties of atoms and molecules (how they “stick” together), nanotechnology proposes the construction of novel molecular devices possessing extraordinary properties. The trick is to manipulate atoms individually and place them exactly where needed to produce the desired structure. This ability is almost in our grasp. The anticipated payoff for mastering this technology is far beyond any human accomplishment so far. By treating atoms as discrete, bit-like objects, molecular manufacturing will bring a digital revolution to the production of material objects. Working at the resolution limit of matter, it will enable the ultimate in miniaturization and performance. By starting with cheap, abundant components-molecules-and processing them with small, high-frequency, high-productivity machines, it will make products inexpensive. Design computers that each executes more instructions per second than all of the semiconductor CPUs in the world combined. Nanotechnology will reverse the harm done by the industrial revolution. Imagine being able to cure cancer by drinking a medicine stirred into your favorite fruit juice. Imagine a supercomputer no bigger than a human cell Imagine a four-person, surface-to-orbit spacecraft no larger or more expensive than the family car. These are just a few products expected from nanotechnology. Humanity will be faced with a powerful, accelerated social revolution as a result of nanotechnology. In the near future, a team of scientists will succeed in constructing the first nano-sized robot capable of self-replication. Within a few short years, and five billion trillion nano-robots later, virtually all present industrial processes will be obsolete as well as our contemporary concept of labor. Consumer goods will become plentiful, inexpensive, smart, and durable. Medicine will take a quantum leap forward, space travel and colonization will become safe and affordable. For these and other reasons, global life styles will change radically and human behavior will be drastically impacted. The world is on the brink of a new technological revolution beyond any human experience. A new, more powerful industrial revolution capable of bringing wealth, health, and education, without pollution, to every person on the planet. No longer will forest need to be cut or smoke spewed into the air. This is the promise of nanotechnology. A nanometer is one billionth of a meter. That’s a thousand, million times smaller than a meter. If you blew up a baseball to the size of the earth, the atoms would become visible, about the size of grapes. Some 3-4 atoms fit lined up inside a nanometer.
单选题The author believes that the future of nanotechnology will be ______.AconspicuousBdistinctiveCforeseeableDpromising
单选题Joseph：Excuse me. Have you got a minute? Ethan：The doctors are very bust… Joseph：No, it’s not that. It’s just that ______ . Have you thought of getting a drinks machine put in? Ethan：Uhm… I don’t think so, bur I’ll speak to the hospital management about that.AI’m rather thirsty after all this timeBif you need someone to helpCthere’s too much traffic these daysDI missed the train this morning
单选题—It’s time to graduate. Why not get our teachers some flowers to say thanks?—______They have done so much for us and we will miss them.AThat’s all rightBGood ideaCI hope not
单选题There's a new cafeteria at the corner. How about going there for supper? （）AFine. But it‘s my treat this time.BIt‘s newly decorated.CLet‘s look at the menu first.DI have no idea about what to order.
问答题Advances in technology and science have solved many problems. However，they have also created new problems，among which pollution has attracted much attention of the public. Write a composition of about 400 words on the following topic，discussion the problems caused by pollution.ON POLLUTIONIn the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion or a summary. Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.
单选题Which of the following is the best revision of the underlined portion of sentence 8(reproduced below)?You have probably had the experience of thinking about a paper or a math problem for so long that it’s like one’s brain gets frozen.Ait seems that your brain gets frozenBone’s brain gets frozenCyour brain seems to freezeDyour brains seem to freezeEone’s brain seems to freeze