快,昨天考試的同學快來對答案哦,英文版的,只有這有哦。
8/27 托福聽力真題Younger Dryas新仙女木期,限制級2016.08.27托福聽力原題與正解分享
冰河世紀的新仙女木時間(Younger Dryas),氣溫在百年內忽然升降,可能是大洋中的freshwater的增加影響的。突然的降溫使得遷移到高緯度地區的動植物大批死亡。
Younger Dryas 英文背景補充:
The Younger Dryas is a geological period from c. 12,900 to c. 11,700 calendar years ago (BP). It is named after an indicator genus, the alpine-tundra wildflower Dryas octopetala. Leaves of Dryas octopetala are occasionally abundant in the Late Glacial, often minerogenic-rich, like the lake sediments of Scandinavian lakes. The Younger Dryas saw a sharp decline in temperature over most of the northern hemisphere, at the end of the Pleistocene epoch, immediately preceding the current warmer Holocene. It was the most recent and longest of several interruptions to the gradual warming of the Earth's climate since the severe Last Glacial Maximum, c. 27,000 to 24,000 calendar years BP. The change was relatively sudden, taking place in decades, and resulted in a decline of 2 to 6 degrees Celsius, advances of glaciers and drier conditions, over much of the temperate northern hemisphere. It is thought to have been caused by a decline in the strength of the Atlantic meridional overturning circulation, which transports warm water from the equator towards the North Pole, and which in turn is thought to have been caused by an influx of fresh cold water from North America into the Atlantic. The Younger Dryas was a period of climatic change, but the effects were complex and variable. In the southern hemisphere, and some areas of the north such as southeastern North America, there was a slight warming.
最後,提醒各位幾點聽力做題的要點:
1. 題目順序和原文順序保持一致,是聽力做題最基本的邏輯;
2. 聽記平衡應該是7分聽,3分記,筆記干擾聽力是最愚蠢的做法;
3. 重複兩遍的詞極有可能考點,重複三遍的詞沒有可能不考;
4. 人名,地名,天體名,如果黑板沒有出現根據發音寫出首字母大寫
5. 並列必須記筆記,要寫上序號詞;對比也必須記筆記,左右分欄記。
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