Re: [請益] TPO1 Timberline Vegetation on Mountains

[comicduo (Jimmy)]

※ 引述《alvinyeh (alvin)》之銘言：
: Paragraph 1：The transition from forest to treeless tundra on a mountain
: slope is often a dramatic one. Within a vertical distance of just a few tens
: of meters, trees disappear as a life-form and are replaced by low shrubs,
: herbs, and grasses. This rapid zone of transition is called the upper
: timberline or tree line. In many semiarid areas there is also a lower
: timberline where the forest passes into steppe or desert at its lower edge,
: usually because of a lack of moisture.

: 3. Which of the following can be inferred from paragraph 1 about both the
: upper and lower timberlines?
: 1 Both are treeless zones
: 2 Both mark forest boundaries.

小弟分享一下小弟的看法

這題小弟倒是從來沒有考慮過  1

這題的題目問的是
what can be inferred from paragraph 1
about both the upper and lower timberlines?

那小弟先請問一下原PO
timberline "本身是" treeless 還是 把treeless 和 trees zone 分開的一個邊界

文章可從頭到尾都只有告訴過讀者說 "那條line上面植物分布的狀況"
可從來沒有有告訴過讀者說 那條line上面是treeless的
就算是infer 也只能infer出那條line上面的樹越來越少
所以 1 就不成立了
3 4 不列入思考 所以答案刪去1 3 4後 就是2啦

純粹只是小弟淺見 還請大家討論指教

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→ azcactus:很簡單 就是一條LINE 也就是boundary 不是一塊區域ZONE
推 DarkD:看起來這幾個詞是指同一件東西 第一句的transition，第三句
→ DarkD:的zone,同一句的timeberline和tree line
→ DarkD:suppose以上認知沒錯，從第一句的transition後有描述到
→ DarkD:treeless，可以推得upper line 就是treeless。然後會感覺
→ DarkD:lower line也treeless我想是also搞怪。upper line是說
→ DarkD:from forest to treeless XX         lower line 說
→ DarkD:the forest passes into XX at its lower edge
→ DarkD:同樣從文中得出suppose, timberline指的是一條線狀的區域
→ DarkD:lower line是在他的lower edge才完全轉化成steppe or desert
→ DarkD:恩= ="我前面講錯了...
→ DarkD:upper line應該也沒有treeless    兩個line都是過度區，要過
→ DarkD:了過度區(也就是timberline)，才變成另一種地貌(treeless)