15篇文章贯通六级词汇MP3(字幕版)Unit3-Part1
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    UNIT3

    Gardening

    One of the quiet joys

    of life in the southern part

    of Ontario, Canada, is gardening.

    Whether pursued as a hobby

    or solely to improve

    the esthetic value of one's home,

    the pleasure derived is only exceeded

    by the therapeutic benefit.

    The exercise involved in working

    in a garden is helpful in

    keeping people in good physical condition.

    It has become a ritual

    for homeowners to spend

    late winter weekends browsing

    through seed catalogues while

    sitting on their couch.

    They make lists of items

    they wish to purchase

    and often make notations right

    on the catalogue as they make

    decisions about this year's garden.

    If they order early,

    there is usually a discount coupon,

    allowing a percentage of

    the cost to be

    deducted from the price.

    Often the coupon needs to

    be detached from the catalogue

    and mailed to the company

    along with the order.

    This is an extra bonus

    for the consumer. The investment cost

    required is nominal when the amount

    of pleasure generated is considered.

    The seed companies will

    usually warrant the plants,

    and often a refund is offered

    if the plants do not thrive.

    The shipment from the

    seed company's warehouse is awaited

    with eager anticipation.

    Its appearance means that

    spring will soon arrive.

    The glossy pages of the catalogues

    provide a preview of the visual

    delights that can be grown.

    Pictures show an array of

    flowers that dazzle the eye.

    There are monochromatic displays

    as well as others that

    are a fusion of the complete

    spectrum of the rainbow's colors.

    Also included in the publication

    are pictures and descriptions

    of vegetables, shrubs, and trees.

    Avid gardeners subscribe to magazines

    that specialize in articles

    and ads about this enjoyable pastime

    and people literally read

    each issue from cover to cover.

    Descriptions of plants include

    implicit instructions on whether

    to plant them in sun or shade.

    Specification as to the amount

    of irrigation required is also stated.

    Elaborate irrigation systems are sometimes

    installed or a trench for

    improving the water flow is used.

    Controls are needed on

    irrigation systems because if

    the ground becomes too saturated

    the soil in the garden

    will be too muddy to

    allow anyone to work in it

    until it dries out. 

    If there is too much

    water constantly, the garden

    will become a swamp

    and impossible to cultivate.

    (Many people like to preserve

    the natural habitat of birds

    and wildlife in a marsh.

    These areas are usually protected

    by the government and

    although important to our environment,

    are not considered gardens.)

    Geographic location is important for plants.

    Certain plants are only suitable

    for propagation close to the equator.

    Others need to be several degrees

    of latitude away from the equator.

    Longitude is also a factor

    and most companies clearly state

    the conditions that will

    provide the optimum chances

    for the plants survival.

    Canadians grow tulips imported

    from Holland and they do well

    in the Southern Ontario climate.

    Because it is late spring

    before plants can survive

    outdoors in Southern Ontario,

    it is common for people to

    start their plants indoors.

    Seeds are planted in small containers

    and continue to grow indoors

    until the appropriate size

    is achieved. Sometimes ultraviolet light

    is used to encourage plant growth.

    When the mercury rises and

    the danger of frost is past,

    the plants are then transplanted

    to the garden or to a flowerbed.

    Plants are nourished from

    the soil, but to provide

    optimum food, fertilizer can be

    applied to encourage vigorous growth.

    Sometimes fertilizer is diluted

    with water while other kinds

    are dispersed with a spreader that

    flings the fertilizer granules in a

    small radius around the plants.

    The water soluble fertilizer will

    then be absorbed into the soil

    the next time it rains.

    Just as people need minerals,

    such as calcium and zinc,

    to be healthy, plants also need

    minerals but phosphorous and nitrogen

    are better food for them.

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