阅读：时事精读（关税 + 深海采矿）

一、关税新闻精读

原文：Canada, U.S. not yet ready to make tariff deal, Canada unsatisfied with latest U.S. offer: Canadian and American negotiators have exchanged a number of offers in recent weeks. As the clock ticks toward U.S. President Donald Trump's latest tariff deadline, Canada and the U.S. aren't at a point where a tariff deal can be reached — and Canadian officials are not satisfied with the latest U.S. offer, according to two sources with knowledge of the trade talks.

长难句拆解

• aren't at a point where a tariff deal can be reached：还没到"能达成关税协议"的那个点（where = 抽象地点）
• according to two sources with knowledge of the trade talks：据了解贸易谈判的两名消息人士

第二段：the Americans offered a new proposal on Tuesday which would lower some of the sectoral tariffs but not to the degree that the Canadian side would like to see.

• not to the degree that ...：没有降到（加方）想看到的那个程度

第三段：the U.S. raised a number of trade irritants, including Canada's alleged discrimination against U.S. motor vehicles and dairy, the removal of U.S. alcohol from provincial store shelves.

• raised trade irritants：提出贸易争议点
• the removal of U.S. alcohol from store shelves：美国酒类从商店货架下架（英文名词化、中文动词化）

语法点

• that = 关系代词：宾语/表语/主语从句引导词 = 同位语
• that 解释 fact 的内容：the fact that demand ... is soaring
• 介词找意思：including against（对……的）；from（从……）；of（的）
• 独主格：barely a cloud in the sky（天上几乎没有云）
• 中文更动态、英文更静态：the removal of → 中文"下架"

时政词汇

tariff deal 关税协议 / negotiators 谈判代表 / sectoral tariffs 行业性关税 / trade irritants 贸易摩擦点 / retaliation 报复 / deadline 截止日期

二、Deep-sea Mining 深海采矿（剑19 Test4 P2）

主题：深海微生物的医疗潜力 vs 深海采矿对热液喷口生态的危害。

核心表达

• antibiotic-resistant superbugs：抗药性超级细菌
• pathogenic bugs：致病菌
• a breakthrough in the fight against ...：对抗……的突破
• boosting its potential as a life-saving medicine：提升其作为救命药的潜力
• weigh up the pros and cons：权衡利弊
• in sustainability terms, a better way of exploiting the economic potential of the deep sea

长难句拆解

When Professor Mat Upton found that a microbe from a deep-sea sponge was killing pathogenic bugs in his laboratory, he realised it could be a breakthrough in the fight against antibiotic-resistant superbugs, which are responsible for thousands of deaths a year in the UK alone.

• 主干：he realised it could be a breakthrough
• when 从句：发现深海海绵微生物杀死致病菌
• which 非限定从：superbugs 每年仅英国就致数千人死亡

匹配题关键定位

• Q14 交通业原材料需求激增 → copper, aluminium, cobalt for electric car batteries
• Q17 各国尚未就海底勘探规则达成一致 → the global regulatory framework is not yet drafted
• Q21 深海采矿是最大破坏 → Mining will be the greatest assault on deep-sea ecosystems ever inflicted by humans（Verena Tunnicliffe）
• Q23 专家一致反对采矿区域 → deep sea vents: 'we don't want mining on them.'（Dr Jon Copley）