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    67．What is the shortest safe distance from the whales? A．400 metres． B．300 metres． C．200 metres． D．100 metres． 答案 64.C 65.B 66.A 67.D Passage 3 We experience different forms of the Sun’s energy every day.We can see its light and feel its warmth.The Sun is the major source of energy for our planet.It causes the evaporation of water from the oceans and lakes.Sunlight also provides the energy used by green plants to make their own food.These green plants then provide food for all organisms on the Earth. Much of the energy that comes from the Sun never reaches the Earth’s surface.It is either reflected or absorbed by the gases in the upper atmosphere.Of the energy that reaches the lower atmosphere,30% is reflected by clouds or the Earth’s surface.The remaining 70% warms the surface of the planet,causes water to evaporate,and provides energy for the water cycle and weather.Only a tiny part,approximately 0.023%,is actually used by green plants to produce food. Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth.These gases act like the glass of a greenhouse in that they allow energy from the Sun to enter but prevent energy from leaving.They are therefore called greenhouse gases. When sunlight strikes an object,some of the energy is absorbed and some is reflected.The amount reflected depends on the surface.For example,you’ve probably noticed how bright snow is when sunlight falls on it.Snow reflects most of the energy from the Sun,so it contributes to the low temperatures of winter.Dark-coloured surfaces,such as dark soil or forest,absorb more energy and help warm the surrounding air. 【查看更多】

     

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    Do’s and Don’ts in Whale(鲸)Watching

    　　The Department of Fisheries and Oceans has developed guidelines for whale watching in Johnstone Strait, where killer whales are found on a daily basis each summer．It is strongly recommended that vessel(船只)operators follow these guidelines for all kinds of whales．

    　　·Approach whales from the side, not from the front or the back．

    　　·Approach no closer than 100 metres, then stop the boat but keep the engine on．

    　　·Keep noise levels down－no horns, whistles or racing of engines．

    　　·Start your boat only after the whales are more than 100 metres from your vessel．

    　　·Leave the area slowly, gradually moving faster when you are more than 300 metres from the whales．

    　　·Approach and leave slowly, avoiding sudden changes in speed or direction．

    　　·Avoid disturbing groups of resting whales．

    　　·Keep at low speeds and remain in the same direction if traveling side by side with whales．

    　　·When whales are traveling close to shore, avoid crowding them near the shore or coming between the whales and the shore．

    　　·Limit the time spent with any group of whales to less than 30 minutes at a time when within 100 to 200 metres of whales．

    　　·If there is more than one vessel at the same observation spot, be sure to avoid any boat position that would result in surrounding the whales．

    　　·Work together by communicating with other vessels, and make sure that all operators are aware of the whale watching guidelines．

    (1)

    For whom is this text written?

    [　　]

    A．

    Tour guides．

    B．

    Whale watchers．

    C．

    Vessel operators．

    D．

    Government officials．

    (2)

    When leaving the observation areas, the vessel should ________．

    [　　]

    A．

    move close to the beach

    B．

    increase speed gradually

    C．

    keep its engine running slowly

    D．

    remain at the back of the whales

    (3)

    When going side by side with whales, the vessel should ________．

    [　　]

    A．

    keep moving in the same direction

    B．

    surround the whales with other boats

    C．

    travel closer and closer to the shore

    D．

    take a good viewing position

    (4)

    What is the shortest safe distance from the whales?

    [　　]

    A．

    400 metres．

    B．

    300 metres．

    C．

    200 metres．

    D．

    100 metres．

    查看答案和解析>>

    Do’s and Don’ts in Whale(鲸)Watching
    The Department of  Fisheries and Oceans has developed guidelines for whale watching in Johnstone Strait,where killer whales are found on a daily basis each summer. It is strongly recommended that vessel(船只)operators follow these guidelines for all kinds of whales.
    ● Approach whales from the side, not from the front or the back.
    ● Approach no closer than 100 metres, then stop the boat but keep the engine on.
    ● Keep noise levels down-no horns, whistles or racing of engines.
    ● Start your boat only after the whales are more than 100 metres from your vessel.
    ● Leave the area slowly, gradually moving faster when you are more than 300 metres from the whales.
    ● Approach and leave slowly, avoiding sudden changes in speed or direction.
    ● Avoid disturbing groups of resting whales.
    ● Keep at low speeds and remain in the same direction if travelling side by side with whales.
    ● When whales are travelling close to shore, avoid crowding them near the shore or coming between the whales and the shore.
    ● Limit the time spent with any group of whales to less than 30 minutes at a time when within 100 to 200 metres of whales.
    ● If there is more than one vessel at the same observation spot, be sure to avoid any boat position that would result in surrounding the whales.
    ● Work together by communicating with other vessels, and make sure that all operators are aware of the whale watching guidelines.
    【小题1】For whom is this text written?

    A．Tour guides.
    B．Whale watchers.
    C．Vessel operators.
    D．Government officials.
    【小题2】When leaving the observation areas, the vessel should ________________.
    A．move close to the beach
    B．increase speed gradually
    C．keep its engine running slowly
    D．remain at the back of the whales
    【小题3】What is the shortest safe distance from the whales?
    A．400 metres.B．300 metres.C．200 metres.D．100 metres.

    查看答案和解析>>

    Do’s and Don’ts in Whale(鲸)Watching

    The Department of  Fisheries and Oceans has developed guidelines for whale watching in Johnstone Strait,where killer whales are found on a daily basis each summer. It is strongly recommended that vessel(船只)operators follow these guidelines for all kinds of whales.

    ● Approach whales from the side, not from the front or the back.

    ● Approach no closer than 100 metres, then stop the boat but keep the engine on.

    ● Keep noise levels down-no horns, whistles or racing of engines.

    ● Start your boat only after the whales are more than 100 metres from your vessel.

    ● Leave the area slowly, gradually moving faster when you are more than 300 metres from the whales.

    ● Approach and leave slowly, avoiding sudden changes in speed or direction.

    ● Avoid disturbing groups of resting whales.

    ● Keep at low speeds and remain in the same direction if travelling side by side with whales.

    ● When whales are travelling close to shore, avoid crowding them near the shore or coming between the whales and the shore.

    ● Limit the time spent with any group of whales to less than 30 minutes at a time when within 100 to 200 metres of whales.

    ● If there is more than one vessel at the same observation spot, be sure to avoid any boat position that would result in surrounding the whales.

    ● Work together by communicating with other vessels, and make sure that all operators are aware of the whale watching guidelines.

    1.For whom is this text written?

    A．Tour guides.

    B．Whale watchers.

    C．Vessel operators.

    D．Government officials.

    2.When leaving the observation areas, the vessel should ________________.

    A．move close to the beach

    B．increase speed gradually

    C．keep its engine running slowly

    D．remain at the back of the whales

    3.What is the shortest safe distance from the whales?

    A．400 metres.

    B．300 metres.

    C．200 metres.

    D．100 metres.

     

    查看答案和解析>>

    阅读理解
    Do's and Don'ts in Whale(鲸)Watching
         The Department of Fisheries and Oceans has developed guidelines  for  whale  watching  in  Johnstone Strait.where killer whales are found on a daily basis each summer.It is strongly recommended that vessel
    operators follow these guidelines for all kinds of whales.
         ●Appmach whales from the side,not from the front or the back．
         ●Approach no closer than 100 metres,then stop the boat but keep the engine on.
         ●Keep  noise  levels  down-no  horns,whistles  or  racing of engines．
         ●Start your boat only after the whales are more than 100 metres from your yessel.
         ● Leave the area slowly , gradually moving faster when you are more than 300 metres from the whales.
         ●Approach and leave slowly , avoiding sudden changes in speed or direction.
         ●Avoid disturbing groups of resting whales.
         ●Keep at low speeds and remain in the same direction if travelling side by side with whales.
         ●When whales are travelling close to shore, avoid crowding them near the shore or coming between
    the whales and the shore.
         ●Limit the time spent with any group of whales to less than 30 minutes at a time when within 100 to
    200 metres of whales.
        ●If there is more than one vessel at the same observation spot,be sure to avoid any boat position that
    would result in surrounding the whales.
        ●Work together by communicating with other vessels , and make sure that all operators are aware of
    the whale watching guidelines.
    1. For whom is this text written?_________
    A. Tour guides.            
    B. Whale watchers.
    C. Vessel operators.      
    D. Govemment officials.
    2. When leaving the observation areas, the vessel should________.    
    A. move close to the beach
    B. increase speed gradually
    C. keep its engine running slowly
    D. remain at the back of the whales
    3. When going side by side with whales, the vessel should_______.
    A. keep moving in the same direction
    B. surround the whales with other boats
    C. travel closer and closer to the shore
    D. take a good viewing position
    4. What is the shortest safe distance from the whales?_______   
    A. 400 metres.                
    B. 300 metres.
    C. 200 metres.              
    D. 100 metres.

    查看答案和解析>>

    C
    Do’s and Don’ts in Whale(鲸) Watching
    The Department of Fisheries and Oceans has developed guidelines for whale watching in Johnstone Strait, where killer whales are found on a daily basis each summer. It is strongly recommended that vessel(船只) operators follow these guidelines for all kinds of whales.
    · Approach whales from the side, not from the front or the back.
    · Approach no closer than 100 metres, then stop the boat but keep the engine on.
    · Keep noise levels down — no horns, whistles or racing of engines.
    · Start your boat only after the whales are more than 100 metres from your vessel.
    · Leave the area slowly, gradually moving faster when you are more than 300 metres from the whales.
    · Approach and leave slowly, avoiding sudden changes in speed or direction.
    · Avoid disturbing groups of resting whales.
    · Keep at low speeds and remain in the same direction if traveling side by side with whales.
    · When whales are traveling close to shore, avoid crowding them near the shore or coming between the whales and the shore.
    · Limit the time spent with any group of whales to less than 30 minutes at a time when within 100 to 200 metres of whales.
    · If there is more than one vessel at the same observation spot, be sure to avoid any boat position that would result in surrounding the whales.
    · Work together by communicating with other vessels, and make sure that all operators are aware of the whale watching guidelines.
    【小题1】64. For whom is this text written?

    A．Tour guides.B．Whale watchers.
    C．Vessel operators.D．Government officials.
    【小题2】65. When leaving the observation areas, the vessel should ______.
    A．move close to the beachB．increase speed gradually
    C．keep its engine running slowlyD．remain at the back of the whales
    【小题3】66. When going side by side with whales, the vessel should ______.
    A．keep moving in the same directionB．surround the whales with other boats
    C．travel closer and closer to the shoreD．take a good viewing position
    【小题4】67. What is the shortest safe distance from the whales?
    A．400 metres.B．300 metres.C．200 metres.D．100 metres.

    查看答案和解析>>


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