Above-normal tides near the center of a hurricane maybe caused by the ______.A.high barome
Above-normal tides near the center of a hurricane maybe caused by the ______.
A.high barometric pressure
B.jet stream
C.storm surge
D.torrential rains
Above-normal tides near the center of a hurricane maybe caused by the ______.
A.high barometric pressure
B.jet stream
C.storm surge
D.torrential rains
第1题
A.was shocked
B.realizing
C.was
D.tides
第2题
Tides would ______if the pull of the moon equaled the pull of the sun.
A. be the same height as they are now
B. be of equal height all the time
C. sometimes be higher than they are now
D. no longer be affected by the wind
第3题
The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the ______.
A.air gap
B.freeboard
C.penetration
D.water depth
第4题
A.High tides that occur in spring
B.Low tides that occur in spring
C.Tides associated with the perpendicular positioning of the Sun and Moon
D.Tides associated with the alignment of the Sun and Moon
第6题
Passage Two
Questions 26 to 30 are based on the following passage.
Tides are created mainly by the pull of the moon on the earth. The moon's pull causes water in the oceans to be a little deeper at a point closest to the moon and also at a point farthest from the moon, on the opposite side of the earth. These two tidal “waves” follow the apparent movement of the moon around the earth and strike nearly every coast line at intervals of about twelve hours and twenty-five minutes. After reaching a high point, the water level goes down gradually for a little more than six hours and then begins to rise toward a new high point. Hence, most coast lines have two tides a day, and the tides occur fifty minutes later each day. Differences in the coast line and in channels in the ocean bottom may change the time that the tidal wave reaches different points along the same coast line. The difference in water level between high and low tide varies from day to day according to the relative positions of the sun and the moon. The sun also exerts a pull on the earth, although it is only about haft as strong as the pull of the tides arise higher and when they pull at right angles to one another. the tide is lower. The formation of the coast line and variations in the weather are additional factors which can affect the height of tides. Some sections of the coast are shaped in such a way as to cause much higher tides than are experienced in other areas. A strong wind blowing toward the shore may also cause tides to the higher.
Which of the following is right according to the passage?
A. Some coast lines do not have two tides each day.
B. Tides are not affected by the shape of coast line.
C. The sun has as much effect on tides as does the moon.
D. Tides usually rise to the same land day after day.
第7题
A.Parallelism
B.Antithesis
C.Metonymy
D.Zeugma
第8题
Which statement is TRUE concerning apogean tides ________.
A.They occur only at quadrature
B.They occur when the Moon is nearest the Earth
C.They cause diurnal tides to become mixed
D.They have a decreased range from normal
第9题
Tides are superimposed on nontidal rising and falling water levels,caused by ______.
A.freshets
B.floods
C.river flows
D.seismic events
第10题
A.Ocean Passages for the World(NP136)
B.Admiralty Tidal Stream Atlases
C.Admiralty Manual of Tides(NP120)
D.Admiralty Tidal Handbooks(NP122 1-3)
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