As an old saying goes, dogs are man's best friends. They are wonderful animals. In total there are around 400 million dogs in the world. Dogs perform many useful tasks for humans, including hunting, farm work and security . Dogs have formed such a strong bond as pets, workers and companions to humans. Dogs have a much stronger sense of hearing than humans. They are capable of hearing sounds from afar. Also, dogs have a remarkable sense of smell. The average life span for a dog is around 10 to 14 years.
-wonderful ［'wʌndəfl ］ adj. 极好的，精彩的
-perform ［pə'fɔ:m ］ vt. 执行；完成
-useful ［'ju:sfl ］ adj. 有益的；有帮助的
-security ［sɪ'kjʊərəti ］ n. 安全；保卫工作
-bond ［bɒnd ］ n. 关系
-companion ［kəm'pæniən ］ n. 同伴；朋友
-remarkable ［rɪ'mɑ:rkəbl ］ adj. 卓越的；非凡的
-average ［'ævərɪʤ ］ adj. 平均的；普通的
as an old saying goes... 俗话说
life span 寿命
1. Dogs have a much stronger sense of hearing than humans.
狗的听觉比人强得多。
Some animals have a much stronger sense of hearing than others.
有些动物的听觉比其他动物强得多。
The bear has a keener sense of smell than other types of animals.
跟其他动物相比，熊具有更为敏锐的嗅觉。
2. They are capable of hearing sounds from afar. 它们能够听到很远的声音。
This company is capable of providing good services.
该公司能提供良好的服务。
That young man is capable of performing different stunts.
那位年轻人能够表演不同的绝技。
狗狗二三事
俗话说得好，狗是人类最好的朋友。它们是一种了不起的动物。据说目前世界上共有大约4亿条狗。狗帮助人类完成许多有用的任务，包括打猎、干农活、保障安全等。狗作为人类的宠物、帮手和伙伴，与人类有着牢不可破的亲密关系。狗的听觉比人强得多，能够听到很远的声音。此外，狗还拥有非凡的嗅觉。狗的平均寿命约为10岁到14岁。