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[主观题]

You hear the general alarm and ship's whistle sound for over 10 seconds. Traditionally，this is the signal for ________.

A、A. abandon ship

B、B. dismissal from fire and emergency stations

C、C. fire and emergency

D、D. man overboard

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更多“You hear the general alarm and…”相关的问题

第1题

You hear the general alarm bells and ships whistle sound for over 10 secondsTraditionally, this is the signal for _____.

A.abandon ship

B.dismissal from drills

C.fire and emergency

D.lower lifeboats

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第2题

The emergency signal for fires is sounded on the ship’s whistle and general alarm as _____.

A.a continuous ringing for 10 seconds

B.one short ring followed by one long ring

C.two long rings of at least 20 seconds

D.a continuous ringing until the fire is extinguished

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第3题

PART C

Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.

听力原文： A few months ago, millions of people in London heard alarms all over the town. Emergency services, the Fire Department, the Police, hospitals, and ambulances stood by, ready to go into action. In railway and underground stations, people read notices and maps, which told them where to go and what to do in the emergency. This was Exercise Flood Call, to prepare people for a flood emergency. London wasn't flooded yet, but it is possible that it would be. In 1232 and in 1223, Lon- don was badly flooded. In 1928, people living in Westminster, the heart of London, drowned in floods. And in 1953, one hundred people, living on the eastern edge of the London suburbs were killed again in the floods. At last, Greater London Council took action to prevent this disaster from happening again. Though a flood wall was built in the 1980s, Londoners still must be prepared for the possible disaster. If it happens, 50 underground stations will be underwater. Electricity, gas and phone services will be out of action. Roads will be drowned. It will be impossible to cross any of the bridges between north and south London. Imagine: London will look like the famous Italian city, Venice. But this Exercise Flood Call didn't cause panic among Londoners. Most people knew it was just a warning. One lady said, "It's a flood warning, isn't it? The water doesn't look high to me."

What happened in London a few months ago?

A．The heart of London was flooded.

B．An emergency exercise was conducted.

C．100 people in the suburbs were drowned.

D．One of the bridges between North and South London collapsed.

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第4题

While reading the muster list, you see that "three short blasts on the ships whistle and the same signal on the general alarm bells" is the signal for _____.

A.abandon ship

B.dismissal from drills

C.fire and emergency

D.man overboard

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第5题

Which of the following represents the emergency signal for fire aboard ship?

A.More than six short blasts and one long blast on the whistle

B.Continuous blast of the ships whistle for a period of not less than 10 seconds supplemented by the same signal on the general alarm

C.Three short blasts of the whistle supplemented by the same signal on the general alarm

D.More than six short blasts and one long blast on the whistle supplemented by the same signal on the general alarm

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第6题

听力原文： I am glad to see so many of you here. We've become really alarmed over at the health center by the number of students we are seeing, who are experiencing heating loss. First I want to go over some basics about hearing, then we can take a look at our school environment and see if we can figure out some ways to protect hearing. The leading cause of preventable heating loss is excessive noise. Too much moderate noise for a long time, or some types of intense noise for even a short time can damage hearing. Loudness is measured in units called decibels. One decibel is the lowest sound that the average person can hear. Sounds up to 80 decibels generally aren't harmful, that's noise like traffic on a busy street. But anything louder than 80 decibels, esp. with continuous exposure, may eventually hurt your hearing. Once you're up to around 140 decibels, that's like a jet plane taking off, then you might even feel pain in your ears. And pains are sure sign that your hearing is at risk. Even one exposure to a really loud noise at close range can cause hearing loss. So what you need to do is limit your exposure to harmful levels. If you pass along this hand-out, we can take a look at the decibel level of some common campus sounds. Notice how loud those horns are that people take to football games. They are really dangerous if blown fight behind you. Now, let' s try to generate a list of damaging noises.

(33)

A．To plan ways to prevent hearing damage.

B．To inform. them about contagious ear infections.

C．To explain part of the physical exam entering students must have.

D．To provide background information for their course work.

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第7题

听力原文： We've become alarmed over the health center by the number of students who are experiencing hearing loss. First, I want to go over some basic about hearing. Then we can take a look at our school environment and see if we can figure out some ways to protect hearing. The leading cause of preventable hearing loss is excessive noise. Too much moderate noise for a long time or some types of intense noise for even a short time can damage hearing. Loudness is measured by decibels. One decibel is the lowest sound the average person can hear. Sounds up to 80 decibels generally aren't harmful. That's noise like traffic on a busy street. But anything louder than 80 decibels may hurt your hearing. Once you are up to 140 decibels, that's like a jet plane taking off, then you might even feel pain in your ears. Those are sure sign that your hearing's at risk. Even one exposure to a really loud noise at close range can cause hearing loss. So what you need to do is limit your exposure to harmful levels. If you pass along this handout, we can take a look at the decibel level of some common campus sounds. Notice how loud those horns are that people take to football games. They are really dangerous if blown right behind you.

What is this passage talking about?

A．Air pollution.

B．Noise damage.

C．Environment on campus.

D．Solutions for pollution.

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