1、关键词法是打开“七选五”之门的金钥匙高考题型中，阅读填句是学生感到非常棘手的题型之一。破解的方法多种多样，但是笔者认为最有效的方法是“关键词”法。一般来说，“七选五”命题方式有三种：段首、段中和段尾。当空格出现在段首时，考生既要关注文章上一段尾句的关键词，又要关注空格后面句子的关键词。然后浏览选项，找出选项中与上下句关键词相匹配的关键词，构成一个语义相关并且逻辑紧密的微语境，该选项基本确定为正确选项。例1：（2018 全国卷III)Before there was the written word, there was the language of dance.Dance expresses
2、 love and hate,joy and sorrow,life and death,and everything else in between._3 We dance from Florida to Alaska,from north to south and from sea to sea. We dance at weddings， birthdays, office parties and just to fill the time.A. So why do we dance?B. Dance in the U. S. is everywhere.C. If you like d
3、ances outdoors,come to America.我们不难看出，空格前面句子的关键词是dance expresses,空格后面句子的关键词是dance,空格处应该是B 选项，关键词是We dance,上下文连贯，逻辑严谨,故选B。例2. （2021 全国卷乙） According to Jessica Hagy , author of How to Be Interesting, its not difficult to make yourself interesting at dinner party._36, if you are out of your comfort zon
4、e or if youre wandering into somebodys house for a the first time. So the main thing is just to show up and be adventurous, trying different foods and talking to strangers.A. How do you know the hostB. The first step is to go exploringC. Be prepared to have awkward conversations with strangers 本题空格前
5、面的关键词是to make yourself interesting(让自己变得有趣），空格后面句子的关键词是be adventurous，因此空格处的关键词应该是go exploring. 如果空格设置在段中，考生应该阅读空格前后内容，标记出关键词，然后阅读选项，找出与之匹配的关键词，确定答案。 例1：（2021 全国卷 甲） Put different types of clothing on different surfaces in the room. _1 Place a few mirrors around your room so people can see how thing
6、s look when they try them on.D. Just keep music playing throughoutE. Have everyone put their clothes in the right spotsG. Tell everyone to bring clean clothes in good condition 空格处和空格前后的句子都谈论放置东西和地点，关键词是放置（put,put,place) 和地点，结构相同，关系紧密，逻辑严谨，故E项正确。 例2：Establish youy purpose and plan your habitsDo you
7、want to be fluent in weeks or are you in it for the brain training? The good apps are designed to help you fit your studies around your timetable._38 These apps encourage habit building ,because the successful formation of a habit ensures your safe and regular return.A. I recommend it. D. I encourag
8、e you to use apps as often as you can.E. The best apps adapt themselves based upon your behavior.我们不难看出，空格前面和后面的句子谈到的都是有关小程序的内容，关键词非常完美的一致，故选项E为正确选项。 如果空格设在段尾，考生应该认真阅读空格前面的一两个句子，锁定关键词，找出选项中与之匹配的关键词，再借助词汇复现，平行结构，指代等技巧的验证，最终确定答案。 例1：（2018 全国卷II） Your productivity is removed. Exercising makes you more
9、awake and ready to handle whatever is ahead of you for the day. _2.D. There is no reason you should exercise in the morning.E. You can keep your head clear for 4-10 hours after exercise.F. After you exercise, you continue to burn calories throughout the day.G. If you are planning to do exercise regu
10、larly,or youre doing it now, then listen up!空格前面句子的关键词是使你头脑清醒，与空格后面句子中的keep your head clear 是同畴。故选项E为正确选项。例2：（2021 全国卷 乙）.If you can;t take their wine away，you should certainly try to take away their soapbox（讲台）.If you are the host ,you can ask them to help you in the kitchen with something and just
11、 remove them from the situation. _39C.If you ask the question “How did you get there? ”E. Or turn the conversation into a topic where they have little to say.F. What about the person who had too much to think or wont stop talking.我们可以看到，空格前面的几个关键词是拿走白酒，撤掉讲台，让他们去厨房帮助收拾东西或者从现场劝走。这些都是阻止喝多酒的人令人讨厌的讲话的几种方式，空格后面转移话题，让他们无话可说，与上文内容完全一致。因此确定答案E。综上所述，关键词法是做“七选五”的非常有效的方法。只要大家认真阅读空格前后的句子，找准关键词，同时参考复现，指代以及逻辑关系等解题方法，就能够顺利推断出正确选项。
