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我们知道，任何一道阅读题，无论深浅难易，在文中一定能找到依據。解题时，找到依据在文中出现的位置，叫信息定位。考生如能准确定位，正确选项会较为明显，其余选项也几乎不构成干扰，因此，又快又准地进行信息定位非常重要。以下是笔者总结的八个定位技巧。
一、用专有名词定位
因人名、地名、组织机构名等专有名词，首字通常要大写，在文中很容易辨认出来，因此，可利用专有名词在文中迅速定位。如：
[例1]2016年全国Ⅲ卷
22. When can you go to a concert by Chamber Orchestra？
A. February. B. May. C. August. D. November.
解题过程：用题干中的专有名词Chamber Orchestra定位，在文中找到下列段落：
Chamber Orchestra： The Orchestra plays at Memorial Hall at 1406 Elm Street， which offers several concerts from March through June. Call 723-1182 for more information. http：www.chamberoch.com.
又因本题是问时间，具体依据为which offers several concerts from March through June；比较各选项，只有选项B符合from March through June，故选B。
二、用主题名词定位
就是用题干中能体现该句主题或中心的名词作为定位词，在文中迅速定位。
[例2]2016年全国Ⅲ卷
25. What happened when Welty was with her friends at the cafe？
A. Two strangers joined her.
B. Her childhood friends came in.
C. A heavy rain ruined the dinner.
D. Some people held a party there.
解题过程：本题问Welty和朋友在café餐馆里发生了什么。我们用café作为定位词，在文中找到下列段落：
On one of her trips to New York several years ago， Eudora Welty decided to take a couple of New York friends out to dinner. They settled in at a comfortable East Side cafe and within minutes， another customer was approaching their table.
“Hey， aren’t you from Mississippi？”the elegant， white-haired writer remembered being asked by the stranger. “I’m from Mississippi too.”
Without a second thought， the woman joined the Welty party. When her dinner partner showed up， she also pulled up a chair.
“They began telling me all the news of Mississippi，” Welty said. “I didn’t know what my New York friends were thinking.”
Taxis on a rainy New York night are rarer than sunshine. By the time the group got up to leave， it was pouring outside. Welty’s new friends immediately sent a waiter to find a cab. Heading back downtown toward her hotel， her big city friends were amazed at the turn of events that had changed their Big Apple dinner into a Mississippi state reunion（团聚）.
顺着café往下读，然后对比各选项，可知A项正确。B项和D项无中生有，C项“大雨搞砸了晚餐”与文中By the time the group got up to leave， it was pouring outside.（吃完饭起身要离开时，外面下着大雨）不符。
三、用主题动词定位
就是用题干中能体现该句主题或中心的动词作为定位词，在文中迅速定位。
[例3]2014年全国Ⅱ卷
15. Which number should you call if you lose something on the Metro？
A. 202-962-1195 B. 202-962-1100
C. 202-637-7000 D. 202-637-8000
解题过程：本题问如果你在地铁丢失了东西应拨打哪个号码，能体现本句中心思想的应是“丢失”东西，故用lose作为定位词，在文中找到： If you lose something on a bus or train or in a station， please call Lost
一、用专有名词定位
因人名、地名、组织机构名等专有名词，首字通常要大写，在文中很容易辨认出来，因此，可利用专有名词在文中迅速定位。如：
[例1]2016年全国Ⅲ卷
22. When can you go to a concert by Chamber Orchestra？
A. February. B. May. C. August. D. November.
解题过程：用题干中的专有名词Chamber Orchestra定位，在文中找到下列段落：
Chamber Orchestra： The Orchestra plays at Memorial Hall at 1406 Elm Street， which offers several concerts from March through June. Call 723-1182 for more information. http：www.chamberoch.com.
又因本题是问时间，具体依据为which offers several concerts from March through June；比较各选项，只有选项B符合from March through June，故选B。
二、用主题名词定位
就是用题干中能体现该句主题或中心的名词作为定位词，在文中迅速定位。
[例2]2016年全国Ⅲ卷
25. What happened when Welty was with her friends at the cafe？
A. Two strangers joined her.
B. Her childhood friends came in.
C. A heavy rain ruined the dinner.
D. Some people held a party there.
解题过程：本题问Welty和朋友在café餐馆里发生了什么。我们用café作为定位词，在文中找到下列段落：
On one of her trips to New York several years ago， Eudora Welty decided to take a couple of New York friends out to dinner. They settled in at a comfortable East Side cafe and within minutes， another customer was approaching their table.
“Hey， aren’t you from Mississippi？”the elegant， white-haired writer remembered being asked by the stranger. “I’m from Mississippi too.”
Without a second thought， the woman joined the Welty party. When her dinner partner showed up， she also pulled up a chair.
“They began telling me all the news of Mississippi，” Welty said. “I didn’t know what my New York friends were thinking.”
Taxis on a rainy New York night are rarer than sunshine. By the time the group got up to leave， it was pouring outside. Welty’s new friends immediately sent a waiter to find a cab. Heading back downtown toward her hotel， her big city friends were amazed at the turn of events that had changed their Big Apple dinner into a Mississippi state reunion（团聚）.
顺着café往下读，然后对比各选项，可知A项正确。B项和D项无中生有，C项“大雨搞砸了晚餐”与文中By the time the group got up to leave， it was pouring outside.（吃完饭起身要离开时，外面下着大雨）不符。
三、用主题动词定位
就是用题干中能体现该句主题或中心的动词作为定位词，在文中迅速定位。
[例3]2014年全国Ⅱ卷
15. Which number should you call if you lose something on the Metro？
A. 202-962-1195 B. 202-962-1100
C. 202-637-7000 D. 202-637-8000
解题过程：本题问如果你在地铁丢失了东西应拨打哪个号码，能体现本句中心思想的应是“丢失”东西，故用lose作为定位词，在文中找到： If you lose something on a bus or train or in a station， please call Lost