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It’s disturbing to note how many of the crimes we do know about were detected ___not by systematic inspections or other security procedures.
A. by accident
B. on schedule
C. in general
D. at intervals
B. on schedule
C. in general
D. at intervals
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参考解析
解析：by accident“偶然”；on schedule“按时”；in general“通常，大体上”；at intervals“不时”。根据句子结构，所填词与by systematic inspections or other security procedures是对称的，by accident 符合要求。
更多 “It’s disturbing to note how many of the crimes we do know about were detected ___not by systematic inspections or other security procedures.A. by accident B. on schedule C. in general D. at intervals” 相关考题
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Water is the __46___ of all the things we eat and drink . Not many people understand this but __47____ quite true . The human body can go without ___48___ for a long time . We’ve got many examples for this . Yet two __49___ three days without water can usually make people __50____ . Man can’t live __51____ water .Many people don’t understand how ___52__ water the human body needs __53___ work well , and many people , especially young people , do not drink enough , ___54__ in very hot weather . Our body has mostly water , about 65% to 75% . That is to say about two thirds of our body is water . When we do sports , some of the water will get away from our body . __55 _ we don’t drink some water , we won’t have enough water． And if we don’t have enough water , we’ll feel tired and many of us will get ill . So you know how important water is to us .46.___________( )46. A. importantB. most importantC. more importantD. different
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What do we know about Olivetti ?A.It produced the best typewriter in the word.B.It designed the word’s first mainframe. computer.C.It exported more typewriter than other computer.D.It has five independent companies with its head office in lvrea.
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Do scientists know how many cryptic species exist?A．Not yet.B．Yes, they do.C．They will know the answer in another one or two years.D．They will never know the answer.
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How many hours of housework did men do every week in the 1970s?A. About 23. B. About 26.C. About 13. D. About y.
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We laugh at jokes，but seldom about how they work．A．we thinkB．think weC．we do thinkD．do we think
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How many hours of housework did men do every week in the 1970s?A．About 23.B．About 26.C．About 13.D．About y.
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I know you are planning a trip to Europe this autumn.Do you know_______?A：how much it will costB：how much has it costC：how much cost it willD：how many will it cost
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This is not the world we know. This world is controlled by computers. Men and women can be seen, but they are following the orders given to them by machines. The machines were designed by mad scientists, but at some point even the mad scientists were taken over by their super-inventions.Does this sound familiar? You have probably read something like it in magazines or books, or seen it in a film. Why is it so popular? One of the reasons is that it reflects the fears of many people; fear of the unknown fear of what is not understood or, at least, fear of something that is not completely understood.The fact is that every day it seems that computers take control of another area of our lives. Somefactory jobs are now done by robots and the robots are controlled by computers. Our bank accounts are managed by computers. At the airport, our tickets are sold by a computer. Certainly, many of these operations are made moreefficient by computers, but our admiration is sometimes mixed with unsafe feelings. And this lack of safety is caused by the fact that we do not know how computers do these things, and we really don't know what they might do next. But we can find out how computers work, and once we understand them, we can use computers instead of worrying about being used by them. Today, there is a new generation of computer wizards who know exactly how computers get things done. These young men and women, usually university students, are happy to sit for hours, sometimes for days, designing programs, not eating, not sleeping, but discovering what can be done by these wonderful slaves which they have learned to control. These computer wizards have learned to use the computer and search for new tasks for their machines.(1)、According to the passage, our present world is under the control of ______ .A：mad scientistsB：men and womenC：the unknown fearD：some super-inventions(2)、The reason why many people are afraid of computers is that ______ .A：they don't know anything about computersB：they haven't really understood computersC：there are so many computer gamesD：computers are often down(3)、The author mentions computer wizards in order to point out that ______ .A：computers can be controlled by manB：there should be more people devoted to computersC：only young people are interested in computersD：more time and energy is required to control computers(4)、This passage is probably written to suggest that ______ .A：some day computers can deal with all human problemsB：computers can be used in place of traveling to our jobsC：people should not fear computersD：computer technology will not meet people's needs in various situations(5)、The author's attitude towards widely used computers is __.A：positiveB：anxiousC：worriedD：serious
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What do we know about the rich men in the 17th century?A.They tended to wear clothes without bottons.B.They were interested in historical matters.C.They were mostly dressed by servants.D.They drew their swords from the left.
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what do we know about nora?A．she prefer a room of her own.B．She likes to work with other girls.C．She lives near the city center.
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Step Back in TimeDo you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago.Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases , especially rickets（佝偻病）and scurvy（坏血病）, which are both caused by bad diets.This is because many families were very poor and not able to feed their children well.Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.People didn't have fridges until the 1 920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice, or even burying it in the garden.Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 1 00 years ago , you might well be selling matchsticks（火柴杆）(a job done by many children)or working with your dad by now. Life was not easy for many children living 100 years ago.A:Right B:Wrong C:Not mentioned
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Step Back in TimeDo you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.One of the main reasons for people living longer is that we know how to look after ourselves better.We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.But in order that we don't slip back into bad habits,let's have a look at what life was 100 years agoFamilies had between 15 and 20 children,although many babies didn't live long.from lots of diseases , especially rickets (佝偻病）and scurvy（坏血病）,which are bot diets.This is because many families were very poor and not able to feed their children well.Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.People didn't have fridges until the 1920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice,or even burying it in the garden.Some children had to start work at the age of seven or eight to earn money for their pai lived 100 years ago,you might well be selling matchsticks（火柴杆）(a job done by many children）or working with your dad by now.People in the past preferred standing up to lying down when sleeping.A:Right B:Wrong C:Not mentioned
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Step Back in Time Do you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45 .But now,she can live until at least 80. One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for US and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better a-gain .And we know how important it is to do lots of exercise to keep our hearts beating healthily. But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago. Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases, especially rickets (佝偻病）and scurvy（坏血病）,which are both caused by bad diets.This is because many families were very poor and not able to feed their chil-dren well. Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down. People didn't have fridges until the 1920s.They kept fresh food cold by storing it on window-sills（窗台板）,blocks of ice , or even burying it in the garden. Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 100 years ago, you might well be selling matchsticks（火柴杆）(a job done by many children) or working with your dad by now. Poor diets can lead to such diseases as rickets and scurvy.A: RightB:WrongC: Not mentioned
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Step Back in Time Do you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45 .But now,she can live until at least 80. One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for US and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better a-gain .And we know how important it is to do lots of exercise to keep our hearts beating healthily. But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago. Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases, especially rickets (佝偻病）and scurvy（坏血病）,which are both caused by bad diets.This is because many families were very poor and not able to feed their chil-dren well. Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down. People didn't have fridges until the 1920s.They kept fresh food cold by storing it on window-sills（窗台板）,blocks of ice , or even burying it in the garden. Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 100 years ago, you might well be selling matchsticks（火柴杆）(a job done by many children) or working with your dad by now. A hundred years ago many kids died at an early age.A: RightB:WrongC:Not mentioned
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Step Back in Time Do you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45 .But now,she can live until at least 80. One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for US and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better a-gain .And we know how important it is to do lots of exercise to keep our hearts beating healthily. But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago. Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases, especially rickets (佝偻病）and scurvy（坏血病）,which are both caused by bad diets.This is because many families were very poor and not able to feed their chil-dren well. Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down. People didn't have fridges until the 1920s.They kept fresh food cold by storing it on window-sills（窗台板）,blocks of ice , or even burying it in the garden. Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 100 years ago, you might well be selling matchsticks（火柴杆）(a job done by many children) or working with your dad by now. An Englishman invented the fridge in the 1920s.A: RightB:WrongC: Not mentioned
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Step Back in TimeDo you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.One of the main reasons for people living longer is that we know how to look after ourselves better.We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.But in order that we don't slip back into bad habits,let's have a look at what life was 100 years agoFamilies had between 15 and 20 children,although many babies didn't live long.from lots of diseases , especially rickets (佝偻病）and scurvy（坏血病）,which are bot diets.This is because many families were very poor and not able to feed their children well.Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.People didn't have fridges until the 1920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice,or even burying it in the garden.Some children had to start work at the age of seven or eight to earn money for their pai lived 100 years ago,you might well be selling matchsticks（火柴杆）(a job done by many children）or working with your dad by now.An Englishman invented the fridge in the 1920s.A:Right B:Wrong C:Not mentioned
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Step Back in TimeDo you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago.Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases , especially rickets（佝偻病）and scurvy（坏血病）, which are both caused by bad diets.This is because many families were very poor and not able to feed their children well.Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.People didn't have fridges until the 1 920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice, or even burying it in the garden.Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 1 00 years ago , you might well be selling matchsticks（火柴杆）(a job done by many children)or working with your dad by now. An Englishman invented the fridge in the 1920s.A:Right B:Wrong C:Not mentioned
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Step Back in TimeDo you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.One of the main reasons for people living longer is that we know how to look after ourselves better.We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.But in order that we don't slip back into bad habits,let's have a look at what life was 100 years agoFamilies had between 15 and 20 children,although many babies didn't live long.from lots of diseases , especially rickets (佝偻病）and scurvy（坏血病）,which are bot diets.This is because many families were very poor and not able to feed their children well.Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.People didn't have fridges until the 1920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice,or even burying it in the garden.Some children had to start work at the age of seven or eight to earn money for their pai lived 100 years ago,you might well be selling matchsticks（火柴杆）(a job done by many children）or working with your dad by now.Life was not easy for many children living 100 years ago.A:Right B:Wrong C:Not mentioned
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Where Has the Salt Come from?Every now and then,we meet a fact about our earth that makes us feel strange and no answer for the fact has yet been found.Such a fact is the existence of salt in the oceans. How did it get there?We simply do not know how the salt got into the ocean!We do know,of course,that salt is water-soluble,and so passes into the oceans with rainwater.The salt of the earth's surface is constantly being dissolved（溶解）and is passing into the ocean.But we do not know whether this can explain the huge quantity of salt in oceans.If all the oceans were dried up,enough salt would be left to build a wall 180 miles high and a mile thick. Such a wall would reach once around the world at the Equator（赤道）!The common salt that we all use is produced from seawater or the water of salt lakes, from salt springs（源泉）and from deposits of rock salt. The concentration（浓度）of salt in seawater ranges from about three percent to three-and-one-half percent. The Dead Sea, which covers an area of about 340 square miles,contains about 11,600,000,000 tons of salt!On the average, a gallon（加仑）of seawater contains about a quarter of a pound of salt.The beds of rock salt that are found in various parts of the world were all originally formed by the evaporation（蒸发）of seawater millions of years ago. It is believed that the thick rock-salt deposits were formed after about nine-tenth of theY volume of seawater had been evaporated.Most commercial salt is obtained from rock salt.The usual method is to drill wells（井） down to the salt beds. Pure water is pumped down（抽进去）through a pipe. The water dissolves the salt and it is forced through another pipe up to the surface.A:Right B:Wrong C:Not mentioned
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Where Has the Salt Come from?Every now and then,we meet a fact about our earth that makes us feel strange and no answer for the fact has yet been found.Such a fact is the existence of salt in the oceans. How did it get there?We simply do not know how the salt got into the ocean!We do know,of course,that salt is water-soluble,and so passes into the oceans with rainwater.The salt of the earth's surface is constantly being dissolved（溶解）and is passing into the ocean.But we do not know whether this can explain the huge quantity of salt in oceans.If all the oceans were dried up,enough salt would be left to build a wall 180 miles high and a mile thick. Such a wall would reach once around the world at the Equator（赤道）!The common salt that we all use is produced from seawater or the water of salt lakes, from salt springs（源泉）and from deposits of rock salt. The concentration（浓度）of salt in seawater ranges from about three percent to three-and-one-half percent. The Dead Sea, which covers an area of about 340 square miles,contains about 11,600,000,000 tons of salt!On the average, a gallon（加仑）of seawater contains about a quarter of a pound of salt.The beds of rock salt that are found in various parts of the world were all originally formed by the evaporation（蒸发）of seawater millions of years ago. It is believed that the thick rock-salt deposits were formed after about nine-tenth of theY volume of seawater had been evaporated.Most commercial salt is obtained from rock salt.The usual method is to drill wells（井） down to the salt beds. Pure water is pumped down（抽进去）through a pipe. The water dissolves the salt and it is forced through another pipe up to the surface.The author is sure that the dissolved salt from the earth's surface is the only source of the huge quantity of salt found in oceans.A:Right B:Wrong C:Not mentioned
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Where Has the Salt Come from?Every now and then,we meet a fact about our earth that makes us feel strange and no answer for the fact has yet been found.Such a fact is the existence of salt in the oceans. How did it get there?We simply do not know how the salt got into the ocean!We do know,of course,that salt is water-soluble,and so passes into the oceans with rainwater.The salt of the earth's surface is constantly being dissolved（溶解）and is passing into the ocean.But we do not know whether this can explain the huge quantity of salt in oceans.If all the oceans were dried up,enough salt would be left to build a wall 180 miles high and a mile thick. Such a wall would reach once around the world at the Equator（赤道）!The common salt that we all use is produced from seawater or the water of salt lakes, from salt springs（源泉）and from deposits of rock salt. The concentration（浓度）of salt in seawater ranges from about three percent to three-and-one-half percent. The Dead Sea, which covers an area of about 340 square miles,contains about 11,600,000,000 tons of salt!On the average, a gallon（加仑）of seawater contains about a quarter of a pound of salt.The beds of rock salt that are found in various parts of the world were all originally formed by the evaporation（蒸发）of seawater millions of years ago. It is believed that the thick rock-salt deposits were formed after about nine-tenth of theY volume of seawater had been evaporated.Most commercial salt is obtained from rock salt.The usual method is to drill wells（井） down to the salt beds. Pure water is pumped down（抽进去）through a pipe. The water dissolves the salt and it is forced through another pipe up to the surface.We have not fully understood how salt got into the ocean.A:Right B:Wrong C:Not mentioned
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Compared with other areas of our social lives,we tend to boast far more on social media.For instance,few of us will stand on a neighborhood corner and declare how accomplished we are or how much we love our spouse.On Facebook,however,we have no uneasiness about routinely posting photographs of intimate family gatherings,foreign vacations,and fancy meals.What's more,many of us share boasts with hundreds or even thousands of social media connections,with little knowledge or concern about who's seeing them or what effect it has on them.Despite the risk of negative effects,we can't help boasting on social media because,as psychologists have argued,boasting satisfies fundamental human motives of creating a favorable first impression with strangers,and building a positive image among those who know us.In our vast social media spheres,boasting is also a good way,or even possibly the only way,to attract attention.
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Computer CrimesMore and more,the operations of our businesses,governments,and financial institutions are controlled by information that exists only inside computer memories.Anyone clever enough to modify this information for his purpose can reap substantial rewards.Even worse,________(46)It's easy for computer crimes to go undetected if no one checks up on what the computer h doing.________(47),the criminal may walk away not only unpunished but with a growing recommendation from his former employers.Of course,we have no statistics on crime that go undetected.But it's disturbing to note how many of the crimes we do know about were detected by accident,________(48)The computer criminals who have been caught may have been the victims of uncommonly bad luck.For example,________(49)Investigation revealed that the extra cards she was being asked to punch were for dishonest transactions.In another case,dissatisfied employees of the thief tipped off the company that was being robbed.Unlike other lawbreakers,who must leave the country,commit suicide,or go to jail,computer criminals sometimes escape punishment demanding not only that they not be charged but that they be given good recommendations and perhaps other benefits.All too often,their demands have been met. Why?________(50)that would result if the public found out that their computer had been misused.They hesitate at the thought of a criminalboasting in open court of how he juggled the most confidential records right under the noses of the company's executives,accountants,and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere._________（48）A:a certain keypunch operator complained of having to stay overtime to punch extra cards.B:It goes without saying that any one who breaks the law should be punished.C:Because company executives are afraid of the bad publicityD:a number of people who have done this and been caught at it have managed to get away without punishment.E:not by systematic inspections or other security procedures.F: But even if the crime is detected
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Some Things We Know About LanguageMany things about language are a mystery,and many will always remain so.But some things we do know.First , we know that all human beings have a language of some sort.There is no race（种族）of men anywhere on earth so backward that it has no language,no set of speech sounds by which the people communicate with one another.Furthermore,in historical times,there has never been a race of men without a language. Second,there is no such thing as a primitive（原始的）language.There are many people whose cultures are undeveloped,who are,as we say,uncivilized,but the languages they speak are not primitive.In all known languages we can see complexities that must have been tens of thousands of years in developing. This has not always been well understood;indeed,the direct contrary has often been stated.Popular ideas of the language of the American Indians will illustrate.Many people have supposed that the Indians communicated in a very primitive system of noises.Study has proved this to be nonsense.There are,or were, hundreds of American Indian languages,and all of them turn out to be very complicated and very old.They are certainly different from the languages that most of us are familiar with,but they are no more primitive than English and Greek.A third thing we know about language is that all languages are perfectly adequate.That is,each one is a perfect means of expressing the culture of the people who speak the language. Finally,we know that language changes.It is natural and normal for language to change;the only languages which do not change are the dead ones.This is easy to understand if we look backward in time. Change goes on in all aspects of language.Grammatical features change as do speech sounds,and changes in vocabulary are sometimes very extensive and may occur very rapidly.Vocabulary is the least stable part of any language.The author argues that we do know some things about language in______aspects.A:three B:fourC:five D:six
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Very few of our birds stay with us the year round.Some come to us in the winter from the cold?north.Others come from the south to spend the summer with us.How do they know the way?Suppose?you were told to find your way to a place hundreds of miles away,do you think you could do it?
Yet birds travel over mountains,forests,lakes and even across the oceans,and do not stray from?the path.They find their way back in the spring to the same orchard（果园）and the very trees where?they nested the summer before.
It is wonderful how quickly birds travel such long distances from their summer homes to their?winter ones.Some birds have been known to fly hundreds of miles in a day.But others travel much?more slowly.
Why do birds undertake these long journeys twice a year?Perhaps cold weather and lack of?food drive them from us in the autumn,but we cannot tell why they leave the sunny south to come?back to us in the spring.We know only that many of them like to make their nests and rear their?young in the north.
We are sorry to see them go,but we know that when winter is over they will come back to us.
How far do birds usually travel from their summer homes to their winter ones?A.About hundreds of miles.
B.About thousands of miles.
C.The distance that takes a bird to fly the whole morning.
D.The passage does not tell us.
考题
单选题We know from this passage that over one hundred seventy years ago ______.A
no women worked outside their homesB
women were considered as children by the lawC
women cared nothing about how their family lives wereD
women were not allowed to decide how to spend their money or how to teach children
考题
单选题What do we know about Lawrence after he became a teacher?A
He wrote many novels and stories.B
He worked with miners in his spare time.C
He escaped from the mines where his family lived.D
He learned how to write stories from a famous writer.
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