（一）speak、talk、say等词的用法、区别及例句：
say是及物动词.后面接什么即say sth.意为“说”“Can you say the word in English?
talk 是为不及物动词,后面接about式to 等介词,意为谈论 We are talking about the story book.
speak为及物动词用词组为speak 直接加语言 如：speak English/Chinese为不及物动词时speak at the meeting 在会上发言.