趋势(包括升降速度)：
　　The visits increased quickly from about 12 to 53 million from 1979 to 1999.
　　(1) (2) (3) (4) (5)
　　There was an increase in the visits from about 12 to 53 million from 1979 to 1999.
　　(2a) (1) (4) (5)
　　An increase in the visits is seen from about 12 to 53 million from 1979 to 1999.
　　(2a) (1) (6) (4) (5)
　　(1)主体：(第二段或图例中有明示)
　　同义词 travel
　　The travel increased quickly from about 12 to 53 million from 1979 to 1999.
　　代词 they
　　The visits increased quickly from about 12 to 53 million from 1979 to 1999. In particular, they increased very rapidly from 1985 to 1988.
　　线 line：主要用于不理解图线所代表内容的情况。
　　the thin(细线) / thick(粗线) / broken(虚线) / dotted(点线) line
　　The thin line, which represents visits by UK residents, increased from about 12 to 53 million from 1979 to 1999.
　　(2)增加/减少：动词
　　increase / decrease, rise/drop(可做名词)
　　go up / come down
　　climb / slide
　　ascend / decline
　　rocket / collapse(暴增/暴减)
　　过去的图表用一般过去时；一天24小时的图表用一般现在时。
　　(3)升降速度/幅度(去掉-ly就是形容词)
　　快：quickly / rapidly / swiftly
　　慢：slowly / gradually / steadily
　　大：greatly / vastly / considerably / substantially
　　小：slightly / marginally / minutely
　　数字副词：
　　about / around / roughly / more or less 12 million
　　(3)+(2a)增加/减少：名词
　　a sharp / slow / great / slight increase
　　an upward / rising / increasing tendency
　　a downward / falling / decreasing trend
　　(4)数字单位用单数
　　12 million而不是12 millions
　　(5)时间：
　　from … to … / between … and …
　　during the period from … to … / between … and … / starting from ….     （实习编辑：顾萍）

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