2. b. Last year, global temperatures were cooled slightly by a natural weather pattern in the Pacific called La Niña. 3. b. False.And scientists fear that the planet couldsoon breach the long-term ...

三、听第三遍音频，将句子补充完整。 （提示：可以反复听，直到听清楚每一个词） 1. Over the last four years, oyster nurseries have been set up on the coasts of counties Antrim and Down. 2. Scientists hope the shellfish will form a natural ...