A tsunami is caused by a(n) ______.A.tidal waveB.storm surge caused by a hurricane or tropical stormC.earthquake on the ocean's floorD.tornado
A tsunami is caused by a(n) ______.
A.tidal wave
B.storm surge caused by a hurricane or tropical storm
C.earthquake on the ocean's floor
D.tornado
相关考题：
-The drunk driver wishes he( )so many injuries in the accident.-But he( )．A. hadn't caused; had B.didn't cause; didC. hasn't caused; didD.hasn't caused; has
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
Above-normal tides near the center of a hurricane maybe caused by the ______.A.high barometric pressureB.jet streamC.storm surgeD.torrential rains
When a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）______．A.High pressure areaB.Extratropical low-pressure systemC.Tropical stormD.Easterly wave
Which statement about the Flinders bar of the magnetic compass is CORRECT ________．A.It compensates for the error caused by the vertical component of the Earth's magnetic fieldB.It compensates for error caused by the heeling of a vesselC.It compensates for quadrantal deviationD.It is only needed in equatorial waters
Deviation in a compass is caused by the ______.A.vessel’s geographic positionB.vessel’s headingC.earth’s magnetic fieldD.influence of the magnetic materials of the vessel
It can be known from the passage that increase in the salinity of ocean water is caused by___________.A.melting of sea iceB.precipitationC.evaporationD.supplement of salt
共用题干Hurricane1 A hurricane（飓风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center know as the“eye”.The“eye” is generally 20 to 30 miles wide,and the storm may ex- tend outward 400 miles. As a hurricane nears land,it can bring heavy rains,high winds,and storms（风暴潮）.The storm surges and heavy rains can lead to flooding.2 Hurricanes are given a different label,depending on where they occur. If they begin over the North Atlantic Ocean,the Caribbean Sea,the Gulf of Mexico,or the Northeast Pa-cific Ocean,they are called hurricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date Line are called typhoon. Near Australia and in the India Ocean, they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains , inland（内陆的）flooding, and huge waves crashing onto the shore. During a hurri-cane,homes,businesses,and public buildings may be damaged or destroyed;road and bridges can be washed away. A powerful hurricane can kill more people and destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour if they do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter immediately. Go to your safe room. If you do not have one,stay indoors during the hurricane and go to a safer place near the center of your home. Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks it's real-ly dangerous. Do not be fooled if there is a lull（暂停）；it could be the eye of the storm-winds will pick up again.During a hurricane one should stay away from________.A: inland floodingB: natural disasterC: early warningD: windows and glass doorsE: a constant speedF: different labels
共用题干Hurricane1 A hurricane（飓风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center know as the“eye”.The“eye” is generally 20 to 30 miles wide,and the storm may ex- tend outward 400 miles. As a hurricane nears land,it can bring heavy rains,high winds,and storms（风暴潮）.The storm surges and heavy rains can lead to flooding.2 Hurricanes are given a different label,depending on where they occur. If they begin over the North Atlantic Ocean,the Caribbean Sea,the Gulf of Mexico,or the Northeast Pa-cific Ocean,they are called hurricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date Line are called typhoon. Near Australia and in the India Ocean, they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains , inland（内陆的）flooding, and huge waves crashing onto the shore. During a hurri-cane,homes,businesses,and public buildings may be damaged or destroyed;road and bridges can be washed away. A powerful hurricane can kill more people and destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour if they do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter immediately. Go to your safe room. If you do not have one,stay indoors during the hurricane and go to a safer place near the center of your home. Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks it's real-ly dangerous. Do not be fooled if there is a lull（暂停）；it could be the eye of the storm-winds will pick up again.Depending on where the occur,hurricanes have________.A: inland floodingB: natural disasterC: early warningD: windows and glass doorsE: a constant speedF: different labels
共用题干Hurricane1 A hurricane（飓风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center know as the“eye”.The“eye” is generally 20 to 30 miles wide,and the storm may ex- tend outward 400 miles. As a hurricane nears land,it can bring heavy rains,high winds,and storms（风暴潮）.The storm surges and heavy rains can lead to flooding.2 Hurricanes are given a different label,depending on where they occur. If they begin over the North Atlantic Ocean,the Caribbean Sea,the Gulf of Mexico,or the Northeast Pa-cific Ocean,they are called hurricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date Line are called typhoon. Near Australia and in the India Ocean, they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains , inland（内陆的）flooding, and huge waves crashing onto the shore. During a hurri-cane,homes,businesses,and public buildings may be damaged or destroyed;road and bridges can be washed away. A powerful hurricane can kill more people and destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour if they do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter immediately. Go to your safe room. If you do not have one,stay indoors during the hurricane and go to a safer place near the center of your home. Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks it's real-ly dangerous. Do not be fooled if there is a lull（暂停）；it could be the eye of the storm-winds will pick up again.Paragraph 2_________A: What Should You Do During a Hurricane?B: What Are Different Names of Hurricanes?C: What Is a Hurricane?D: What Damages Can a Hurricane Cause?E: How Do You Know a Hurricane Is Coming?F: Where Do Hurricanes Usually Happen?
共用题干Hurricane1 A hurricane（腿风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center known as the"eye".The "eye" is generally 20 to 30 miles wide,and the storm may extend outward 400 miles.As a hurricane nears land,it can bring heavy rains,high winds,and storm surges（风暴潮）.The storm surges and heavy rainscan lead to flooding.2 Hurricanes are given a different label,depending on where they occur.If they begin over the NorthAtlantic Ocean,the Caribbean Sea,the Gulf 0f Mexico,or the Northeast Pacific Ocean,they are called hur- ricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date line are called typhoons.Near Australia and in the Indian Ocean,they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains,inland （内陆的）flooding,and huge waves crashing on to the shore. During a hurricane,homes,businesses,and public buildings may be damaged or destroyed;roads and bridges can he washed away.A powerful hurricane can kill more people and deRtroy more property than ally other natural disaster. Fishermen arc at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour ifthey do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter im- mediately.Go to your safe room.If you do not have 0110,stay indoors during the hurricane and go to safer place near the center of your home.Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks,it's really dangerous.Do not be fooled if there is a lull（暂 停）;it could he the eve of the storm一winds will pick up again.Paragraph 4_________A:Where do Hurricanes Usually Happen? B:What Damages can a Hurricane Cause?C:What should You Do During a Hurricane? D:What is a Hurricane?E:What are Different Names of Hurricanes?F:How do You Know a Hurricane is Coming
共用题干Hurricane1 A hurricane（腿风）is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral（螺旋）around a relative calm center known as the"eye".The "eye" is generally 20 to 30 miles wide,and the storm may extend outward 400 miles.As a hurricane nears land,it can bring heavy rains,high winds,and storm surges（风暴潮）.The storm surges and heavy rainscan lead to flooding.2 Hurricanes are given a different label,depending on where they occur.If they begin over the NorthAtlantic Ocean,the Caribbean Sea,the Gulf 0f Mexico,or the Northeast Pacific Ocean,they are called hur- ricanes.Similar storms that occur in the Northwest Pacific Ocean west of the International Date line are called typhoons.Near Australia and in the Indian Ocean,they are referred to as tropical cyclones（龙卷风）.3 When a hurricane hits land,it can do great damage through its fierce winds,heavy rains,inland （内陆的）flooding,and huge waves crashing on to the shore. During a hurricane,homes,businesses,and public buildings may be damaged or destroyed;roads and bridges can he washed away.A powerful hurricane can kill more people and deRtroy more property than ally other natural disaster. Fishermen arc at special risk from hurricanes as they may be at sea when a hurricane arrives and not be able to get to a safe harbour ifthey do not receive adequate warning.4 If a hurricane is coming in your area,the most important thing is to stay calm and find shelter im- mediately.Go to your safe room.If you do not have 0110,stay indoors during the hurricane and go to safer place near the center of your home.Cover yourself with a blanket and be sure to keep away from windows and glass doors,because if the glass breaks,it's really dangerous.Do not be fooled if there is a lull（暂 停）;it could he the eve of the storm一winds will pick up again.A powerful hurricane may become the most destructive__________.A:different labelsB:windows and glass doorsC:inland floodingD:early warningE:natural disasterF:a constant speed
单选题A declaration made by the Master before a PRC Consul，giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo，through no fault of the vessel，her officers，or crew is a(n)（）.Acargo addendumBexception reportCMaster's declarationDnote of protest
单选题An occluded front is caused by a(n)（）.Alow pressure areaBhigh pressure areaCarea of calm airDcold front overtaking a warm front
单选题Above-normal tides near the center of a hurricane maybe caused by the（）.Ahigh barometric pressureBjet streamCstorm surgeDtorrential rains
单选题Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.AHigh pressure areaBExtratropical low-pressure systemCTropical stormDEasterly wave
单选题The set of the ocean current is caused by（）.Adensity differences of the waterBrotation of the earthCdirection of primary circulation of airDall of the above
单选题The navigable semicircle of a tropical storm in the South Indian Ocean is located on which side of the storm’s track? （）ARearBFrontCLeftDRight
单选题After the tragedy caused by Hurricane Hugo, new houses built along South Carolina’s shoreline are required _____.Ato be easily reinforcedBto look smarter in designCto meet stricter building standardsDto be designed in the shape of cubes
单选题A tsunami is caused by a(n)（）.Atidal waveBstorm surge caused by a hurricane or tropical stormCearthquake on the ocean's floorDtornado
单选题The error in a magnetic compass caused by the vessel’s magnetism is called（）.AvariationBdeviationCcompass errorDbearing error
单选题The direction of prevailing winds in the Northern hemisphere is caused by the（）.AMagnetic field at the North PoleBGulf StreamCEarth's rotationDArctic cold fronts
单选题Deviation in a compass is caused by the（）.Avessel's geographic positionBvessel's headingCearth's magnetic fieldDinfluence of the magnetic materials of the vessel
单选题Electrical failures in motors are caused by the breakdown of insulation, which may be caused by （）Apenetration of moistureBaccumulation of dirtCoverheatingDAll of the above