推 GOKU123:謝謝解答!! 02/24 09:58
※ 引述《GOKU123 (GOKU)》之銘言：
: Q:according to the professor, what activities associated with the beginning
: of agriculture may have slowed or prevented the onset of predicted ice age?2ANS
: A. the clearing of trees
: B. the burning of fossil fuels
: C. the domestication of certain animals
: D. the cultivation of certain grains
: 答案是AC
: 但不知道D為什麼錯
: 內文有說到certain grains 是導致methane 變多的原因 應該也屬於溫室氣體吧?
聽力與閱讀的關鍵之一
一開始是練習聽到訊息
不過在練習之後 會聽到太多的訊息 所以要練習提煉重點
我們來看看ETS如何騙人呢?
因為聽力不能先看選項
所以要由聽力文章找關鍵
: 原文相關段落:
: Well, one of the big differences is human activity. People began to raise
: crops and animals for
: food instead of hunting for them. This is the agricultural revolution. And it
: began to happen in the earliest stages about 11 thousand years ago.
: Now, scientists have tended to regard ... the ... uh ... agricultural
: revolution as a beneficiary of the ... uh ... fortuitous2 shift in climate.
: However, some new theories of climate, new theorists of
: climate have proposed that perhaps humanity was having an effect on the
: climate as far back as the beginnings of the agricultural revolution.
: When you grow crops and uh, pasture your animals, one of the things you do is
: you cut down the forests.
就是這一句有陷阱When這一句提到 grow crops, pasture your animals
必須 cut down the forests 砍樹
但是這一句並沒有說者兩者會造成氣候變化
聽力的關鍵就是掌握考點前的關鍵
不論是閱讀或聽力
if 條件句一定是重點
種植與放牧如果會造成氣候影響 是因為 沒有把砍掉的樹種回去
換言之 答案中 光是 放牧或種植並非造成氣候影響的原因
原因是樹變少了=> CO2 增加 A
If you cut down the forests, when you burn the trees for fuel and don’t replace them with other trees, or when you just
: leave them to rotand don’t allow other trees to grow,
: you end up with a lot more carbon in the form of carbon
: dioxide getting into the atmosphere.
另一個陷阱是 the burning of fossil fuels
出現聽力中的 burn 和 fuel
但是很遺憾的是聽力原文並非 fossil fuels石化燃料
所以不能選B
: Um ... another gas associated with the spread of agriculture is methane.
Another 出現時 就是另一個原因了 methane 增加
由於平行結構 你之前應該要知道某種氣體的增加與氣候的關係
(CO2 造成其增加的原因是 砍樹.燒柴.不種回)
: Methane forms in large concentration above wetlands, and as it turns out,
: the cultivation of certain grains creates vast
methane 增加 的原因
cultivation of certain grains 時wetland 增大
as it turns out 結果發現
正是因果句型
只是沒有because
換言之本文的兩個選項A.D其實是考你有沒有聽到這兩種溫室氣體的產生關鍵
another 是我解題的題眼
: areas of artificial wetlands, and probably drastically increases the amount
: of methane getting into the atmosphere, over and above what would be there.
: 不好意思不會用顏色把主要句子標出來><"
: 還請大家幫忙^^
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