下面來看看託福聽力中的考題吧~
TPO20 Lecture 2 Interglacial Period
13. What does the professor imply about Earth’s climate over the last several million years? 教授暗示過去的幾百萬年地球氣候如何?
正確選項之一:Ice ages have alternated with warmer periods.冰河時期與較溫暖的時期交替
原文:And for over the past several million years, Earth’s sort of default climate has actually been Ice Age, but we have experienced periodic regular thaws.
在過去的幾百萬年間,地球的默認氣候就是冰河時代,但也經歷了規律的階段性冰雪消融。
14. According to the professor, what factor is extending the duration of the current interglacial period?是什麼因素延長了現在間冰期的時間長度?
正確選項:An increase in the quantity of certain gases in Earth’s atmosphere. 地球大氣中某些氣體量的增加。
原文:Now, the typical pattern for an interglacial period is that the concentration of carbon dioxide and methane gas actually reaches its peak, that is, there is the most carbon dioxide and methane gas, uh, greenhouse gases in the atmosphere just after the beginning of the interglacial period.
間冰期的一個主要模式是大氣中聚集大量的二氧化碳和甲烷,也就是說間冰期開始時,大氣中的溫室氣體量會達到峰值。