核心：识别 “逻辑信号词”，锁定答案关键
逻辑信号词是文章逻辑的 “路标”，直接提示答案位置或句间关系，需重点掌握以下 6 类高频信号词。
1. 转折逻辑：答案常藏于转折后
信号词：but, however, yet, in fact, actually, nevertheless, whereas, on the contrary
作用：转折后内容常是作者真实观点或题目答案，是判断题、选择题的高频考点。
示例：原文 “Many people think online learning is easy. However, it requires strong self-discipline.” 若题干问 “作者认为线上学习的特点”，答案需聚焦 “requires strong self-discipline”，而非前半句的大众观点。
2. 因果逻辑：明确事件前因后果
信号词：
表原因：because, since, as, due to, owing to, thanks to, on account of
表结果：so, therefore, thus, consequently, as a result, lead to, result in
作用：帮助理解 “为什么发生”“产生了什么影响”，常用于填空题、判断题中定位因果类答案。
示例：题干 “Why did the project fail?” 可通过原文 “ The project failed due to insufficient funding.” 中的 “due to” 锁定原因 “insufficient funding”。
3. 并列 / 递进逻辑：抓取同类信息
信号词：
并列：and, also, as well as, both...and..., not only...but also..., or
递进：furthermore, moreover, in addition, besides, what’s more
作用：提示前后内容为同类信息，可通过已知信息推测未知信息，提升定位效率。
示例：原文 “The course covers grammar, vocabulary, and writing skills.” 若题干问 “课程包含的内容”，找到 “and” 连接的并列成分，即可提取所有答案。
4. 比较逻辑：区分异同与变化
信号词：
比较相同：same as, similar to, as...as..., like
比较不同：different from, unlike, more than, less than, better than, superior to
变化：increase, decrease, rise, fall, improve, decline, change, develop
作用：用于理解事物间的差异、优劣或发展趋势，是图表题、判断题的核心考点。
示例：题干 “Is the new method more efficient than the old one?” 可通过原文 “ The new method is more efficient than the traditional one.” 中的 “more than” 直接判断答案为 “True”。
5. 举例逻辑：通过例子理解抽象概念
信号词：for example, for instance, such as, like, take...as an example
作用：例子是对前文抽象观点的解释，帮助理解主旨；例子本身也可能成为细节题答案。
示例：原文 “Some countries have adopted strict environmental policies. For example, Norway has invested heavily in renewable energy.” 若题干问 “哪个采取了环保政策”，可通过 “for example” 后的例子 “Norway” 定位答案。
6. 顺序逻辑：梳理时间或步骤
信号词：
时间顺序：firstly, secondly, finally, then, next, after that, before, since, until, in 2023
步骤顺序：first step, then, next, finally, process, procedure, stage
作用：帮助梳理事件发展脉络或实验步骤，常用于流程图填空、段落标题匹配题。
示例：原文 “To complete the experiment, firstly prepare the materials, then mix them, and finally record the results.” 若题干问 “实验的一步”，通过 “finally” 可锁定答案 “record the results”。
