增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1).每处错误及其修改均限一词;

2).只允许修改10处，多者（从第11处起）不计分。

    I have been feeling tired these days and often find hard to concentrate on my study. My teacher told me that it was the sign of anxiety. She advised me to read an article about reducing tension and improving brain efficient. I listened to her and found some useful ways in it. I began to form a habit of taking a nap for 15minutes at noon and try to spare 30 minutes a day to get move. A walk on the playground was beneficial. Besides, following the author's advices, I would play words with friends during class break, which made the brain refreshed and worked better. Having fun with friends is really a good way of becoming relaxed.

    Being tired may influence our mood though it has positive side. The brain can be the more creative. The author reminds what we should not fall asleep with brush in hand and we had better do something creative.

将下面这段文字的主要内容用一句话表述出来，字数在20字以内（含标点符号）
        北京时间6月5日凌晨，中国奥运会冠军刘翔在美国俄勒冈尤金举行的普雷方丹世界田径精英赛中，击败7个美国跨栏高手，以13秒06的今年世界最佳成绩夺得男子110米跨栏冠军，并将约翰逊和韦德1998年创造的普雷方丹田径精英赛13秒12的赛会记录提高了0.06秒。