同學在顧問時間問到以下這題插入句，很具代表性，分享給同學。 題目出自TPO13-2 Biological Clocks. 同學可以先做題再往下看喔！ . Animals need natural periodic signals like sunrise to maintain a cycle whose period is precisely 24 hours. [] Such an external cue not only coordinates an animal's daily rhythms with particular features of the local solar day but also—because it normally does so day after day—seems to keep the internal clock's period close to that of Earth's rotation. [] Yet despite this synchronization of the period of the internal cycle, the animal's timer itself continues to have its own genetically built-in period close to, but different from, 24 hours. [] Without the external cue, the difference accumulates and so the internally regulated activities of the biological day drift continuously, like the tides, in relation to the solar day. [] This drift has been studied extensively in many animals and in biological activities ranging from the hatching of fruit fly eggs to wheel running by squirrels. . Look at the four squares [] that indicate where the following sentence could be added to the passage. Where would the sentence best fit? . Because the internal signals that regulate waking and going to sleep tend to align themselves with these external cues, the external clock appears to dominate the internal clock. . . . . (作答完再往下看) 乍看很容易想選到Ｄ，因為概念好像也很合理：「沒有外在提示，生物日體內調節活動對 照太陽日就會持續偏差，像潮汐一樣。」 原句後半部說 the external clock appears to dominate the internal clock. 接在Ｄ 後面好像對啊？ 概念沒問題，但問題是插入到D這個位置的話，後面的句子 “This drift has been studied extensively…” 就接不下去了。 . 變成這樣： Because the internal signals that regulate waking and going to sleep tend to align themselves with these external cues, the external clock appears to dominate the internal clock. This drift has been studied extensively in many animals and in biological activities ranging from the hatching of fruit fly eggs to wheel running by squirrels. This drift 是什麼東西？？所以不能放在D. . 所以要找到一個地方是前面也有 “the external clock appears to dominate the internal clock.”這樣概念的，而且往下接也合理的位置。 . 可以看到Ｂ前面的句子： Such an external cue not only coordinates an animal's daily rhythms with particular features of the local solar day but also—because it normally does so day after day—seems to keep the internal clock's period close to that of Earth's rotation. . 這句話重點就是「體內時鐘會跟地球繞日時間一樣。」所以把原句Because the internal signals that regulate waking and going to sleep tend to align themselves with these external cues, the external clock appears to dominate the internal clock. 接在後面，是通順的。而且後面的句子Yet despite this synchronization of the period of the internal cycle, the animal's timer itself continues to have its own genetically built-in period close to, but different from, 24 hours. 也接得上去。 . 總結： 有時候會在同一段裡面看到不只一個合理通順的位子，但也要看看往下接能不能通順，不 能只看前面喔！ 再次提醒同學插入句要做對前提是一定要看懂句意，千萬不要只有看關鍵字選，這是投機 的方式，而且應該也會發現，這樣做有時可以，有時不靈光，答題很不穩定。 同學會想說可是如果要懂句意會看不完啊？那你覺得要練習的是如何能在有限時間內看懂 句子，因而能準確答對題目，還是要練習用關鍵字找到答案？我相信聰明的你已經有答案 了。 . Till next time, J2 --

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