Road running is often a community-wide event that highlights or raises money for an issue or project. 20 , Race for the Cure is held throughout the U.S. to raise breast cancer awareness.
答案：(B) For example
【轉折語】前句概括說明「路跑常是社區性活動，用以宣傳議題或募款」，後句以 Race for the Cure 為具體實例，故用 For example（舉例）承接。Above all（最重要的是）、As it appears（看來）、To some extent（在某種程度上）皆不符合舉例語境。
四個選項都是擺在句首的轉承說法，中文讀起來好像都能硬接，尤其 Above all（最重要的是）看起來像在加強語氣，很容易覺得說得通。
轉承語是最好認的邏輯勾環，判準只有一句——先看前一句在做什麼，再看這一句在做什麼，兩者的關係決定填哪一個。前一句 Road running is often a community-wide event that highlights or raises money for an issue or project.（路跑常是全社區的活動，用來凸顯某個議題或為某個計畫募款）講的是通則；這一句 Race for the Cure is held throughout the U.S. to raise breast cancer awareness. 端出來的是一個有名有姓的具體活動。從通則走到具體個案，就是 For example。順便把兩組容易混的分清楚：for example 與 for instance 是舉一個具體的例子；that is 與 in other words 是把同一件事換句話說，後面接的還是同一件事。（學測 89 年第 27 題與第 29 題把這兩組擺在同一篇裡考，可以對照著看。）同一篇的第 17 題其實也在做「先講通則再舉例」的事：because it caters to all ages and abilities 是通則，下一句的 first time amateurs 與 world-class 選手就是例子，只是那裡沒有用轉承語標出來。有標記的與沒標記的都要讀得出來。
Above all（最重要的是）用來在好幾件事情裡挑出最重要的一件，但前文沒有列出一串事情讓你挑。As it appears（就目前看來）帶著「只是表面如此、未必確定」的口吻，而 Race for the Cure 是實際在美國各地舉辦的活動，不是看起來如此。To some extent（在某種程度上）是打折扣、退一步的說法，這一句沒有在讓步，是在正面舉證支持前一句。
for example（舉例來說）、in other words（換句話說）、above all（最重要的是）、to some extent（在某種程度上）、raise money for（為……募款）、raise awareness（喚起大眾對某事的重視）
Road running is one of the most popular and accessible athletic activities in the world. It refers to the sport of running on paved roads or established paths as opposed to track and field, or cross country running. The three most common 16 for road running events are 10K runs, half marathons (21.1K), and marathons (42.2K).
Road running is unique among athletic events because it 17 all ages and abilities. In many cases first time amateurs are welcome to participate in the same event as running club members and even current world-class 18 . Sometimes it may also include wheelchair entrants.
Road running often offers those 19 a range of challenges such as dealing with hills, sharp bends, rough weather, and so on. Runners are advised to train prior to participating in a race. Another important factor contributing to success is a suitable pair of running shoes.
Road running is often a community-wide event that highlights or raises money for an issue or project. 20 , Race for the Cure is held throughout the U.S. to raise breast cancer awareness. This race is also run in Germany, Italy, and Puerto Rico.