straight 是形容词,修饰名词,或做表语;比如:This pencil is straight.He can draw a straight line without a ruler.straightly 是副词,修饰形容词或动词.比如:This kid can walk straightly.straight和straightly的区别用法例如:A ______ road goes ______ from one place to another.A. straight, straight B. straightly, straightlyC. straight, straightly D. straightly, straight【陷阱】容易误选C。认为straightly 是straight 的副词形式。【分析】在现代英语中,straight 既可用作形容词,也可用作副词。而straightly这个副词在现代英语中已被废弃,许多词典均不再收录此词。所以此题最佳答案应选A。