Weshouldlovetheanimalsaroundus.Becausewearefriendsonearth.Suchasdogs.Peopleoftensaythatadogisman'sbestfriend.Overthousandsofyears,manhastaughthisdogstodomanykindsofworkbesidesguardingthehome.Forexample,sheepdogsarefamousfortheirabilitytocontrolaflockofhundredsofsheep.

　　Dogshavebeenusedtoaiddisabledpeopleforcenturies.Aguidedogcanleaditsblindowner.Nowadays,dogscanbetaughttoturnonlightswitches,openrefrigeratordoorsanddialthetelephonefortheirdisabledowners.Forthemajorityofpeople,however,dogsaresimplypetsandfriendsforbothyoungandoldmembersofthefamily.

　　guard看守,看护sheepdog牧羊犬flock群aid帮助

　　disabled残疾人century世纪guidedog导盲犬dial拨majority大多数

　　狗

　　我们应该爱护动物.它们是我们的朋友.例如狗.人们总是说狗是人类最好的朋友.几千年来,除了看家外,人类还教会了狗去做许多其他的事,例如,牧羊犬就因其可以控制数百只羊的羊群而出名.

　　狗用来帮助残疾人已有好几个世纪了.导盲犬可以为盲主人引路.现在,人们还教狗为残疾主人打开电灯、开冰箱和拨电话.然而,对于大多数人来说,狗只是家里老人和孩子们的宠物和朋友.