其次，那些詞不宜化為關鍵詞呢？
在文章中反復出現的詞語，或者在標題中出現的詞語最好不要劃定為關鍵詞，因為他們大多是都是能反應文章主旨的詞，會在文章的多出出現，為關鍵詞回歸定位帶來不變。
注意：劃定關鍵詞是為了幫助考生快速回歸原文找到與之相對的內容，但并非關鍵詞越多越好，最好控制在1~2個以內。
接下來大家動手來練習練習，找找關鍵詞吧！
1. It is estimated that water use will rise by 50% in the next 30 years. (2009綜合A)
2. The American young people feel disappointed at Hillary’s failure to win the nominee. (2009綜合A)
3. Most developed countries will face water shortage in 20 years. (2009綜合A)
4. Hillary Clinton has become the presidential nominee for the Democratic Party. (2009綜合 B)
5. The little known George Mason University was a dark horse because_______. (2009 綜合B)
看看你找到關鍵詞了嗎？
1.“50%”，“30 years”
2.“American young people”
3.“20 years”
4.“the Democratic Party”(全文通篇講希拉里。克林頓，故不選“Hillary Clinton”為關鍵詞)
5.“George Mason University”
