“chance” 读音为 [tʃɑːns]，具有以下词性和释义：①作名词时，意为可能性；机会、机遇；巧合、偶然；②作形容词时，意思是偶然的、意外的；③作动词时，表示碰巧发生；冒险做（某事）。例句：Scientists used to think that having another person around helped survival in a very practical way: if you fall ill (or fall over), you stand a better chance of getting the help you need if there’s someone by your side.【2017 - 2《时代周刊》】科学家们过去认为，身边有他人陪伴对生存有着切实的帮助：倘若你生病（或摔倒），身旁有人时，你更有机会获得所需的帮助。考点：by chance，意为巧合、偶然【2016 英语（一）新题型】