文言文阅读。阅读下面的文言文，完成下列各题。

    李侃，字希正，东安人。正统七年进士，授户科给事中。景帝监国，陈简将才、募民壮、用战车三事。也先逼京师，议者欲焚城外马草。侃言敌轻剽，无持久心，乞勿焚，免复敛为民累。皆报许。时父母在容城，侃晓夜悲泣，乞假，冒险迎之。 景泰初议录扈从死事诸臣后侃因言避难偷生者宜严谴以厉臣节上皇将还与同官刘福等言礼宜从厚。忤旨，被诘，尚书胡濙为解，乃已。

    再迁都给事中。军兴，减天下学校师儒俸廪。侃奏复之。户部尚书金濂违诏征租，侃论濂，下之吏。石亨从子彪侵民业，侃请置重典，并严禁勋戚、中官不得豪夺细民，有司隐者同罪。帝宥亨、彪，余如其请。时给事中敢言者，林聪称首，侃亦矫抗有直声。廷议易储，诸大臣唯唯。侃泣言东宫无失德，聪与御史硃英亦言不可，时议壮之。擢詹事府丞。天顺元年改太常丞，进太仆卿。明年复设山西巡抚，迁侃右佥都御史任之。奏言：“塞北之地，与穷荒无异。非生长其间者，未有能宁居而狎敌者也。今南人戍西北边，怯风寒，闻寇股栗。而北人戍南，亦不耐暑，多潜逃。宜令南北清勾之军，各就本土补伍，人情交便，戎备得修。”时不能用。 奏发巡按李杰罪，杰亦讦侃。按杰事有验，除名。侃无赃罪，获宥。六年考察属吏，奏罢布政使王允、李正芳以下百六十人。因言：“诸臣年与臣若、不堪任事者，臣悉退之，臣亦当罢。”诏不许。侃性刚方，力振风纪，贪墨者屏迹。其年冬以母丧归，军民拥泣，至不得行。服除，遂不出，家居十余年卒。

    侃事亲孝，好学安贫，殁几不能殓。弘治初，国子生江纪等言，前祭酒胡俨，都御史高明、李侃学行事功，彰著耳目，并乞赐谥。寝不行。侃二子：德恢，严州知府；德仁，河东盐运使。

（节选自《明史•列传第四十七》）

阅读短文，下列问题

People sometimes like to read stories of dogs very much. They think that dogs are much cleverer than cats, sheep, cows or other animals in their homes.

One of my close friends, Bob, has a very large police dog named Jack. Every Sunday afternoon, Bob and Jack have a walk in the park nearby. Jack likes these walks very much. One Sunday afternoon, I paid a visit to my friend. I stayed there for a long time and my friend and I had much more talk with each other than ever before. Soon it was time for them to take a walk in the park. We forgot that. Jack became worried about it. He walked around the room several times and then sat down in front of me and looked at me. But I still paid no attention (注意) to him. I went on talking with my friend. At last, Jack could not wait any longer. He went out of the room and came back a few minutes later. He sat down in front of me again. But this time, he held my hat in his mouth. Suddenly, I understood what Jack meant and so did my friend.