【正确答案】:
CONTEXT MAY PROVE EXTREMELY VALUABLE IN GUESSING THE MEANINGS OF NEW WORDS. IN MANY CASES, WHEN A NEW WORD (THOUGHT TO BE)APPEARS FOR THE FIRST TIME, THE AUTHOR GENERALLY MANAGES TO GIVE HINTS WHICH MIGHT HELP THE READER TO GRASP THE CONCEPT OR UNDERSTAND THE IDEA. THIS IS CALLED CONTEXTUAL CLUES. 
A: EXAMPLE   B: EXPLANATION  C: DEFINITION
【题目解析】:在猜测新词的意思时,语境可能是非常有价值的。在许多情况下,当一个新单词(被认为是)第一次出现时,作者通常会设法给出提示,这可能有助于读者理解概念或理解想法。这叫做上下文线索。A:运用了举例法B:运用了解释法C:运用了定义法