20 , Barringer Crater in the American state of Arizona, measuring 1,200 m in diameter and some 170 m deep, was produced by a meteorite impact.
答案：(C) For example
前句提到大型隕石可能造成劇烈爆炸與破壞，本句舉巴林傑隕石坑為具體實例，屬「舉例」的邏輯關係，故用 For example；Indeed（的確）、Nevertheless（然而）、In short（總之）皆不符合舉例語意。
四個轉承語擺在一起，很容易憑讀起來順不順挑一個。這一類題目其實有更快的做法：先問前一句在做什麼、本句在做什麼，兩句之間的關係就決定了答案，不必靠語感。
前一句是 Large meteorites can cause great explosions and much destruction on the surface of the Earth.（大型隕石可能在地表造成劇烈爆炸與嚴重破壞），這是一句通則。本句搬出亞利桑那州的巴林傑隕石坑，還附上直徑一千二百公尺、深約一百七十公尺這些具體數字。從通則走到一個具體的個案，這正是 For example 的工作。判斷這一類題目，一律先確認本句是把前一句換句話說、往前推進了一步，還是舉了一個例子。
Indeed（的確、確實）是把前一句的說法再加重一層，但本句並沒有加重，它是換到一個具體案例上。Nevertheless（然而）要求前後轉折，可是這兩句同向，隕石坑正是破壞力的證據，不是反例。In short（總之）用來收攏前面講過的一串內容做總結，但本句反而比前一句更細、更具體，方向剛好相反。鑑別度 43，分開的是有沒有動手確認兩句之間的關係，還是停在哪一個讀起來比較順。
本句搬出 Barringer Crater 這個地名，還附上直徑一千二百公尺、深約一百七十公尺兩個數字。前一句是通則、這一句忽然出現專有名詞或具體數字，幾乎都是在替前一句舉例。指考 104 年第 20 題 →端出 Race for the Cure 這個活動名稱，100 年第 16 題 →端出日本的一組研究者，都是同一個訊號。整組的分法寫在學測克漏字 89 年第 27 題 →。Earthquakes can change a street in seconds. For example, the old apartment building at the corner collapsed before anyone could run out.（地震可以在幾秒之間改變一條街的樣子。舉例來說，轉角那棟舊公寓在大家還來不及跑出來之前就倒了。）The old apartment building at the corner, for instance, collapsed before anyone could run out.（換成 for instance 並放到句子中間，意思不變。）Damage such as cracked walls, broken windows, and fallen signs could be seen everywhere.（牆壁龜裂、玻璃破碎、招牌掉落這類災情，到處都看得到。）〔情境取材自 98 學測作文題：地震後倒塌的房屋〕
for example（舉例來說）、indeed（的確，加強前面的說法）、nevertheless（然而，表轉折）、in short（總之，做總結）、measuring + 尺寸（量起來有……，分詞片語放在名詞後面）、be produced by（由……造成）。
Do you know the difference between the terms meteoroid, meteor, and meteorite in astronomy? Many people find these words confusing. However, the difference is all about their 16.
Meteoroids are far up in the sky. They are chunks of rock or metal that speed through space. Some are very large and may be hundreds of feet wide. Others 17 the size of a small stone. Most meteoroids travel around the sun in space and stay away from the Earth. However, sometimes a meteoroid will enter the Earth's atmosphere. Friction with the atmosphere will cause it to 18 and burn while traveling at high speed.
As a meteoroid begins to burn in the atmosphere, it leaves a streak of light. When this tail-like light is falling down toward the Earth, it is called a meteor, or a shooting star. Most meteors vaporize completely before they hit the ground.
If any meteor 19 its fiery journey through the atmosphere and lands on Earth, it is called a meteorite. Large meteorites can cause great explosions and much destruction on the surface of the Earth. 20 , Barringer Crater in the American state of Arizona, measuring 1,200 m in diameter and some 170 m deep, was produced by a meteorite impact.