What is the most appropriate title for the passage?A) Dangers of Earthquakes.B) Earthquake Belts and Prediction.C) Earthquake Prediction and Control.D) Earthquake Engineering in California.
What is the most appropriate title for the passage?
A) Dangers of Earthquakes.
B) Earthquake Belts and Prediction.
C) Earthquake Prediction and Control.
D) Earthquake Engineering in California.
相关考题：
We may conclude from the passage that ______.A) it is probably as dangerous to live in Missouri as in CaliforniaB) the New Madrid fault will eventually develop a mountain range in MissouriC) California will become an island in futureD) a big earthquake will occur to California soon
Text 4The U.S. government has recently helped people learn more about the dangers of earthquakes by publishing a map. This map shows the chances of an earthquake in each part of the country. The areas of the map where government is spending a great deal of money and is working hard to help discover the answer to these two questions:1. Can we predict earthquakes?2. Can we control earthquakes?To answer the first question, scientists are looking very closely at the most active fault systems in the country, such as the San Andreas fault in California. A fault is a break between two sections of the earth's surface. These breaks between sections are the places where earthquakes occur.Scientists look at the faults for changes which might show that an earthquake was about to occur. But it will probably be many years before we can predict earthquakes accurately and the control of earthquakes is even farther away.Nevertheless, there have been some interesting developments in the field of controlling earthquakes. The most interesting development concerns the Rocky Mountain Arsenal earthquakes. Here water was pat into a layer of rocks 4,000 metres below the surface of the ground. Shortly after this injection of water, there was a small number of earthquakes. Scientists have decided that the water which was injected into the rocks worked like oil on each other. When the water" oiled" the fault, the fault became slippery and the energy of an earthquake was released.Scientists are still experimenting at the site of these earthquakes. They have realized that there is a connection between the injection of the water and the earthquake activity. They have suggested that it might be possible to use this knowledge to prevent very big, destructive earthquakes, that is, scientists Could inject some kind of fluid like water into faults and change one big earthquake into a number of small, harmless earthquakes.36. Earthquake belts are ______.A) maps that show where earthquakes are likely to occurB) zones with a high probability of earthquakesC) breaks between two sections of the earth's surfaceD) the two layers of earth along a fault
What can be said about the experiments at Rocky Mountain Arsenal?A) They have no practical value in earthquake prevention.B) They may have practical value in earthquake prevention.C) They are certain to have practical value in earthquake prevention.D) The article does not say anything about their practical value in earthquake prevention.
Reading ComprehensionDirections:There are two passages in this part．Each passage is followed by some questions or unfinished statements． For each of them there are four choices marked A,B,C and D． Youshould decide on the best choice．Questions 56- 60 are based on Passage One:Passage OneThe largest earthquake (magnitude里氏9．5)of the 20th century happened on May 22,1960 0ff the coast of South Central Chile．It generated(生成) one of the most destructive Pacific-wide tsunami（海啸）． Near the generating area, both the earthquake and the tsunami were very much destructive, particularly in the coastal area from Concepcion to the south end of Isla Chiloe．The largest tsunami damage occurred at Isla Chiloe-the coastal area closest to the epicenter(震中)．Huge tsuna- mi waves measuring as high as 25 meters arrived within l0 to 15 minutes after the earthquake, killing at least two hundred people, sinking all the boats, and flooding half a kilometer inland．There was large damage and loss of life at Concepcion, Chile's top industrial city．Near the city of Valdivia, the earthquake and following aftershocks generated landslides which killed 18 people． At the port city of Valparaiso, a city of 200,000, many buildings collapsed． A total of 130,000 houses were destroyed-one in every three in the earthquake zone and nearly 2,000,000 people were left homeless．Total damage losses, including agriculture and industry, were estimated(估计） to be over a half billion dollars． The total number of deaths related with both the tsunami and the earthquake was never found accurately for the region． Estimates of deaths reached between 490 and 57,002 with no distinction(差别) as to how many deaths were caused by the earthquake and how many were caused by the tsunami． However, it is believed that most of the deaths in Chile were caused by the tsunami．Where did the largest tsunami damage occur? ( )A． ConcepcionB． Isia ChiloeC． ValdiviaD． Valparaiso
What can we learn about the tsunami waves generated by the earthquake? ( )A． The tsunami waves as high as 25 meters arrived immediately after the earthquake．B． The tsunami waves killed 200 people and sank all the boats．C． The tsunami waves were very destructive．D． The tsunami waves flooded half of the inland．
What is generally thought the main cause of deaths in Chile? ( )A． LandslidesB． The tsunamiC． AftershocksD． The magnitude 9． 5 earthquake
What is the total number of deaths in the earthquake? ( )A． 2,000,000B． Between 490 and 57,002C． 200,000D． It was hard to know
The retired man donated most of his savings to the school damaged by the earthquake inSichuan Province, __________the students to return to their classrooms.A.enablingB.having enabledC.to enableD.to have enabled
共用题干第一篇How to Do with Earthquake?Ideally,people would like to know when an earthquake is going to happen and how bad it willbe.In both Japan and China,people have long believed that earthquakes can be forecast. In Japan, scientists have wired the Earth and sea to detect movements.The Chinese have traditionally watched animals and plants for warning signs of earthquakes.For example,the Chinese have noted that before an earthquake,hens' behavior changes一they refuse to enter their cages at night. They have also noticed that snakes come out of the ground to freeze to death and that dogs bark a lot,even normally quiet dogs.Before the Hanshin earthquake in Japan,there were reports of large schools of fish swimming near the surface of the water. Certain birds,like pigeons,also seemed to be especially noisy and were reported to be flying in unusual patterns before the earthquake.Perhaps most interesting,and most easily measured,is a chemical change in ground water before a quake.Experimental data seem to indicate that the amount of radon(Rn)in the water under the surface of the Earth waxes before an earthquake.People would also like to be able to prevent the great destruction of property caused by earthquakes.After all,most of the people who die in earthquakes are killed by falling buildings.Therefore,building structures that can withstand the power of earthquakes is a major concern.Steel seems to be the best material,but not if it is welded to form a rigid structure.Many new structures are built with a new type of steel joint,an I-joint,which appears to be the most durable type of joint. These joints of steel can move without breaking. Also,to prevent property damage,architects now design buildings so that the building's columns and horizontal beams are of equal strength,and vertical support columns are inserted deep into solid soil.In addition,many new houses have relatively light roofs and strong walls.Concrete pillars for highway bridges that previously only had steel rods inside are now enclosed in steel.Besides working to improve building structures,people in areas where earthquakes are common need to prepare for the possibility of a great earthquake.They should regularly check and reinforce their homes,place heavy objects in low positions,attach cupboards and cabinets to walls,and fasten doors so that they will not open accidentally during an earthquake.According to the passage,the amount of radon(Rn)in the water may______before earthquake.A:increase B:reduce C:not change D:disappear
共用题干第一篇How to Do with Earthquake?Ideally,people would like to know when an earthquake is going to happen and how bad it willbe.In both Japan and China,people have long believed that earthquakes can be forecast. In Japan, scientists have wired the Earth and sea to detect movements.The Chinese have traditionally watched animals and plants for warning signs of earthquakes.For example,the Chinese have noted that before an earthquake,hens' behavior changes一they refuse to enter their cages at night. They have also noticed that snakes come out of the ground to freeze to death and that dogs bark a lot,even normally quiet dogs.Before the Hanshin earthquake in Japan,there were reports of large schools of fish swimming near the surface of the water. Certain birds,like pigeons,also seemed to be especially noisy and were reported to be flying in unusual patterns before the earthquake.Perhaps most interesting,and most easily measured,is a chemical change in ground water before a quake.Experimental data seem to indicate that the amount of radon(Rn)in the water under the surface of the Earth waxes before an earthquake.People would also like to be able to prevent the great destruction of property caused by earthquakes.After all,most of the people who die in earthquakes are killed by falling buildings.Therefore,building structures that can withstand the power of earthquakes is a major concern.Steel seems to be the best material,but not if it is welded to form a rigid structure.Many new structures are built with a new type of steel joint,an I-joint,which appears to be the most durable type of joint. These joints of steel can move without breaking. Also,to prevent property damage,architects now design buildings so that the building's columns and horizontal beams are of equal strength,and vertical support columns are inserted deep into solid soil.In addition,many new houses have relatively light roofs and strong walls.Concrete pillars for highway bridges that previously only had steel rods inside are now enclosed in steel.Besides working to improve building structures,people in areas where earthquakes are common need to prepare for the possibility of a great earthquake.They should regularly check and reinforce their homes,place heavy objects in low positions,attach cupboards and cabinets to walls,and fasten doors so that they will not open accidentally during an earthquake.Which of the following will not possibly happen before earthquake?A:Schools of fish swim near the surface of the water.B:Birds seem to be especially noisy.C:Snakes come out of the ground to freeze to death.D:Dogs become quiet.
共用题干第一篇How to Do with Earthquake?Ideally,people would like to know when an earthquake is going to happen and how bad it willbe.In both Japan and China,people have long believed that earthquakes can be forecast. In Japan, scientists have wired the Earth and sea to detect movements.The Chinese have traditionally watched animals and plants for warning signs of earthquakes.For example,the Chinese have noted that before an earthquake,hens' behavior changes一they refuse to enter their cages at night. They have also noticed that snakes come out of the ground to freeze to death and that dogs bark a lot,even normally quiet dogs.Before the Hanshin earthquake in Japan,there were reports of large schools of fish swimming near the surface of the water. Certain birds,like pigeons,also seemed to be especially noisy and were reported to be flying in unusual patterns before the earthquake.Perhaps most interesting,and most easily measured,is a chemical change in ground water before a quake.Experimental data seem to indicate that the amount of radon(Rn)in the water under the surface of the Earth waxes before an earthquake.People would also like to be able to prevent the great destruction of property caused by earthquakes.After all,most of the people who die in earthquakes are killed by falling buildings.Therefore,building structures that can withstand the power of earthquakes is a major concern.Steel seems to be the best material,but not if it is welded to form a rigid structure.Many new structures are built with a new type of steel joint,an I-joint,which appears to be the most durable type of joint. These joints of steel can move without breaking. Also,to prevent property damage,architects now design buildings so that the building's columns and horizontal beams are of equal strength,and vertical support columns are inserted deep into solid soil.In addition,many new houses have relatively light roofs and strong walls.Concrete pillars for highway bridges that previously only had steel rods inside are now enclosed in steel.Besides working to improve building structures,people in areas where earthquakes are common need to prepare for the possibility of a great earthquake.They should regularly check and reinforce their homes,place heavy objects in low positions,attach cupboards and cabinets to walls,and fasten doors so that they will not open accidentally during an earthquake.What should people do to prepare for earthquakes?A:Check and reinforce their homes.B:Place light objects in low positions.C:Build strong roofs and light walls.D:Attach doors to walls.
共用题干EarthquakeHow does an earthquake start?What makes an earthquake happen? The rock of the earth's crust（地壳）may have a "fault",a kind of break in the surface.The blocks which make up the earth move,and sometimes this may cause the sides of the fault to move up and down or lengthways（纵向地）against each other. When one piece of rock starts to rub on another with great force,a lot of energy is used. This energy is changed into vibrations（振动）and it is these vibrations that we feel as an earthquake.The vibrations can travel thousands of kilometers and so an earthquake in Turkey may be felt in Greece.What to do during an earthquake?At schoolAs soon as the earthquake starts,students should get under the desks immediately and wait until the teacher tells them it is safe to come out.The teacher should,at the same time, go immediately to the teacher's desk, get underneath（在……下面）it and stay there till the danger is over. Students must not argue with the teacher or question instructions.As soon as the tremors（震动）stop, all students should walk towards the exit and go straight to the school playground or any open space such as a square or a park.They must wait there until the teacher tells them it is safe to go.At homeIf you are at home when the earthquake occurs,get immediately under the table in the living room or kitchen.Choose the biggest and strongest table you can find.You must not go anywhere near the window and don't go out onto the balcony（阳台）.Once the tremors have stopped,you can come out from under the table but you must leave the building straight away.You should walk down the stairs and should not use the lift一there may be a power cut as a result of the earthquake and you could find yourself trapped inside the lift for hours.In the streetIf you are in the street when the earthquake takes place,do not stand near buildings, fences or walls一move away as quickly as possible and try to find a large open space to wait in.Standing under trees could also be dangerous.Students should go to the school playground or an open space once the tremors stop.A:Right B:Wrong C:Not mentioned
共用题干EarthquakeHow does an earthquake start?What makes an earthquake happen? The rock of the earth's crust（地壳）may have a "fault",a kind of break in the surface.The blocks which make up the earth move,and sometimes this may cause the sides of the fault to move up and down or lengthways（纵向地）against each other. When one piece of rock starts to rub on another with great force,a lot of energy is used. This energy is changed into vibrations（振动）and it is these vibrations that we feel as an earthquake.The vibrations can travel thousands of kilometers and so an earthquake in Turkey may be felt in Greece.What to do during an earthquake?At schoolAs soon as the earthquake starts,students should get under the desks immediately and wait until the teacher tells them it is safe to come out.The teacher should,at the same time, go immediately to the teacher's desk, get underneath（在……下面）it and stay there till the danger is over. Students must not argue with the teacher or question instructions.As soon as the tremors（震动）stop, all students should walk towards the exit and go straight to the school playground or any open space such as a square or a park.They must wait there until the teacher tells them it is safe to go.At homeIf you are at home when the earthquake occurs,get immediately under the table in the living room or kitchen.Choose the biggest and strongest table you can find.You must not go anywhere near the window and don't go out onto the balcony（阳台）.Once the tremors have stopped,you can come out from under the table but you must leave the building straight away.You should walk down the stairs and should not use the lift一there may be a power cut as a result of the earthquake and you could find yourself trapped inside the lift for hours.In the streetIf you are in the street when the earthquake takes place,do not stand near buildings, fences or walls一move away as quickly as possible and try to find a large open space to wait in.Standing under trees could also be dangerous.Thousands of people were killed during an earthquake in Turkey.A:Right B:Wrong C:Not mentioned
共用题干Earthquake Insurance1.Earthquake insurance is a form of homeowners' insurance which deals with damage caused by earthquakes.In regions where earthquakes are especially common,homeowners may be required to carry earthquake insurance,so that in the event of an earthquake,people rely less on government disaster funds and more on their own insurance policies.As a general rule,earthquake insurance is not a part of standard insurance policies,and it must be purchased separately.2.Earthquakes can cause a variety of damage to a home,ranging from complete destruction to damage which causes the building to become structurally unsound.Indirect damage caused by neigh-boring collapses of structures and freeways can also occur,as can more bizarre forms of earthquake damage,like winding up with a car in the living room or a sinkhole in the back yard.Fires and flooding are also common problems in the wake of earthquakes.3.When homeowners purchase earthquake insurance,they may be protected against both direct damage,such as a structural collapse after an earthquake,and indirect damage,like a fire caused by broken gas lines.More commonly,the insurance only covers structural damage caused directly by the earthquake.The insurance may pay for a complete replacement of the structure,or a remodel, depending on the type of insurance and the nature of the damage.Some policies also cover damaged property like cars,and they may provide living allowances so that the residents of the home can temporarily relocate for the duration of the repairs.4.This type of homeowners' insurance is prone to adverse selection,in which only people in high risk areas purchase the insurance.The problem with adverse selection for insurance companies is that it decreases the pool of customers,making potential payouts very expensive.For this reason, earthquake insurance often has a high deductible,and it can he very expensive.5.Recognizing the need for earthquake insurance,some governments have provided subsidies for earthquake insurance,to reduce the stress on insurance companies.Insurance companies also adjust their risk pools carefully,and there may be stringent requirements for a homeowner to purchase earthquake insurance.For example,a home may need to be retrofitted for earthquake safety, reducing the amount of damage which will be incurred in a quake.For low-income home owners, this can be very difficult,as it drives the cost of earthquake insurance out of reach,which can in turn make it difficult to get home loans,as many banks in earthquake-prone areas insist on earth-quake insurance as a condition for a loan.Paragraph 3______A:What's the Main Problem of Earthquake Insurance?B:What Damages Can an Earthquake Cause?C:How to Buy an Earthquake Insurance?D:What Is an Earthquake Insurance?E:Where Does Earthquake Happen Frequently? F: What Does an Earthquake Insurance Contain?
共用题干Earthquake Insurance1.Earthquake insurance is a form of homeowners' insurance which deals with damage caused by earthquakes.In regions where earthquakes are especially common,homeowners may be required to carry earthquake insurance,so that in the event of an earthquake,people rely less on government disaster funds and more on their own insurance policies.As a general rule,earthquake insurance is not a part of standard insurance policies,and it must be purchased separately.2.Earthquakes can cause a variety of damage to a home,ranging from complete destruction to damage which causes the building to become structurally unsound.Indirect damage caused by neigh-boring collapses of structures and freeways can also occur,as can more bizarre forms of earthquake damage,like winding up with a car in the living room or a sinkhole in the back yard.Fires and flooding are also common problems in the wake of earthquakes.3.When homeowners purchase earthquake insurance,they may be protected against both direct damage,such as a structural collapse after an earthquake,and indirect damage,like a fire caused by broken gas lines.More commonly,the insurance only covers structural damage caused directly by the earthquake.The insurance may pay for a complete replacement of the structure,or a remodel, depending on the type of insurance and the nature of the damage.Some policies also cover damaged property like cars,and they may provide living allowances so that the residents of the home can temporarily relocate for the duration of the repairs.4.This type of homeowners' insurance is prone to adverse selection,in which only people in high risk areas purchase the insurance.The problem with adverse selection for insurance companies is that it decreases the pool of customers,making potential payouts very expensive.For this reason, earthquake insurance often has a high deductible,and it can he very expensive.5.Recognizing the need for earthquake insurance,some governments have provided subsidies for earthquake insurance,to reduce the stress on insurance companies.Insurance companies also adjust their risk pools carefully,and there may be stringent requirements for a homeowner to purchase earthquake insurance.For example,a home may need to be retrofitted for earthquake safety, reducing the amount of damage which will be incurred in a quake.For low-income home owners, this can be very difficult,as it drives the cost of earthquake insurance out of reach,which can in turn make it difficult to get home loans,as many banks in earthquake-prone areas insist on earth-quake insurance as a condition for a loan.Earthquakes can cause a variety of direct damage and______.A:indirect damageB:risk poolsC:government disaster fundsD:the nature of the damageE:insurance policies F: prices
共用题干Earthquake Insurance1.Earthquake insurance is a form of homeowners' insurance which deals with damage caused by earthquakes.In regions where earthquakes are especially common,homeowners may be required to carry earthquake insurance,so that in the event of an earthquake,people rely less on government disaster funds and more on their own insurance policies.As a general rule,earthquake insurance is not a part of standard insurance policies,and it must be purchased separately.2.Earthquakes can cause a variety of damage to a home,ranging from complete destruction to damage which causes the building to become structurally unsound.Indirect damage caused by neigh-boring collapses of structures and freeways can also occur,as can more bizarre forms of earthquake damage,like winding up with a car in the living room or a sinkhole in the back yard.Fires and flooding are also common problems in the wake of earthquakes.3.When homeowners purchase earthquake insurance,they may be protected against both direct damage,such as a structural collapse after an earthquake,and indirect damage,like a fire caused by broken gas lines.More commonly,the insurance only covers structural damage caused directly by the earthquake.The insurance may pay for a complete replacement of the structure,or a remodel, depending on the type of insurance and the nature of the damage.Some policies also cover damaged property like cars,and they may provide living allowances so that the residents of the home can temporarily relocate for the duration of the repairs.4.This type of homeowners' insurance is prone to adverse selection,in which only people in high risk areas purchase the insurance.The problem with adverse selection for insurance companies is that it decreases the pool of customers,making potential payouts very expensive.For this reason, earthquake insurance often has a high deductible,and it can he very expensive.5.Recognizing the need for earthquake insurance,some governments have provided subsidies for earthquake insurance,to reduce the stress on insurance companies.Insurance companies also adjust their risk pools carefully,and there may be stringent requirements for a homeowner to purchase earthquake insurance.For example,a home may need to be retrofitted for earthquake safety, reducing the amount of damage which will be incurred in a quake.For low-income home owners, this can be very difficult,as it drives the cost of earthquake insurance out of reach,which can in turn make it difficult to get home loans,as many banks in earthquake-prone areas insist on earth-quake insurance as a condition for a loan.The insurance paid for earthquake depends on the type of insurance and______. A:indirect damageB:risk poolsC:government disaster fundsD:the nature of the damageE:insurance policies F: prices
What could be the most appropriate title for the passage？( ) A.Cyber Crime and Its Prevention B.The Origin of Cyber Crime C.How to Deal with Cyber Crime D.The Definition of Cyber Crime
单选题AWhy less people were killed in the earthquake in Los Angeles.BChanges made to construction methods of buildings and highways.CHow to make buildings more resistant to earthquake.DThe outline of the history of the development of quake-resistant building materials.
单选题The phrase “this element of the unknown” (Paragraph 3) refers to ______.Athe extension of earthquake zonesBthe percentage of earthquake occurrencesCwhen and where earthquakes may occurDwhat big damage earthquakes may cause
单选题Man’s research on earthquake forecast at present is to ______.Areduce the loss from earthquake disastersBlower the frequency of earthquakesCrelease the energy that causes earthquakesDanalyze the relationship between different earthquakes
问答题Read the passage carefully and answer questions 1 to 5. Answer each question in a maximum of 10 words. Remember to write the answers on the answer sheet. Every year earthquakes are responsible for a large number of deaths and a vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur either in a narrow belt which surrounds the Pacific Ocean or in a line which extends from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a result of vibration. Other damage results from landslides, tsunamis (large ocean waves) or major fires which are initiated by the quake. There are about a million quakes a year. Fortunately, however, not all of them are destructive. The intensity of an earthquake is measured on the Richter Scale, which goes from 0 upward. The highest magnitude recorded to date is 8.9. Major damage generally occurs from quakes ranging upwards from 6. 0. Exceptions to this are those whose epicenters are located far from inhabited areas. The actual cause of the quake itself is the rupturing or breaking of rocks at or below the earth’s surface. This is produced by pressure which scientists believe may be due to a number of reasons, two of which are the expansion and contraction of the earth’s crust and continental drift. In order to minimize the damage and to alleviate some of the suffering resulting from earthquakes, scientists are working on ways to enable accurate prediction. Two of the instruments presently in use to achieve this goal are seismographs and tiltmeters. The former records any shaking of the earth; by means of calculations seismologists can accurately indicate the exact time, location and size of an earthquake. The latter, as the name suggests, is used to record any changes in the tilt of the land. Questions: 1．Write down one of the two earthquake prone areas. 2．What other disasters may occur after a serious earthquake? 3．What is the unit of measurement of earthquake? 4．What is the highest magnitude in the record? 5．What are the two instruments used today to predict earthquake?
问答题Practice 1 How does an earthquake start? What makes an earthquake happen? The rock of the earth’s crust (地壳) may have a “fault”, a kind of break in the surface. The blocks which make up the earth move, and sometimes this may cause the sides of the fault to move up and down or lengthways (纵向地) against each other. When one piece of rock starts to rub on another with great force, a lot of energy is used. This energy is changed into vibrations (振动) and it is these vibrations that we feel as an earthquake. The vibrations can travel thousands of kilometers and so an earthquake in Turkey may be felt in Greece. What to do during an earthquake? At school As soon as the earthquake starts, students should get under the desks immediately and wait until the teacher tells them it is safe to come out. The teacher should, at the same time, go immediately to the teacher’s desk, get underneath (在……下面) it and stay there till the danger is over. Students must not argue with the teacher or question instructions. As soon as the tremors (震动) stop, all students should walk towards the exit and go straight to the school playground or any open space such as a square or a park. They must wait there until the teacher tells them it is sale to go. At home If you are at home when the earthquake occurs, get immediately under the table in the living room or kitchen. Choose the biggest and strongest table you can find. You must not go anywhere near the window and don’t go out onto the balcony (阳台). Once the tremors have stopped, you can come out from under the table, but you must leave the building straight away. You should walk down the stairs and should not use the lift—there may be a power cut as a result of the earthquake and you could find yourself trapped inside the lift for hours. In the street If you are in the street when the earthquake takes place, do not stand near buildings, fences or walls—move away as quickly as possible and try to find a large open space to wait in. Standing under trees could also be dangerous.