首先要从汉意，英文拼写，读音，形式变化上分清楚，然后再从用法上分清楚。

feel v. 觉得，感觉，摸起来，认为

fall. v.倒塌，跌倒，掉落

n. (美式）秋天

原形，过去式，过去分词，现在分词，三单形式直观图：

feel的用法

① feel adj.

② feel adv.

③ feel sb/sth do/doing

④ feel it adj. (for sb) to do

feel it adj. that从句

⑤ feel like n

feel like doing=want to do=would like

to do 想做某事

feel like that从句

⑥ feeling n. 感情，感觉 (pl) feelings