课前扫描

写出下列单词的正确形式

反义词

近义词

→

→

→

→

→

→

→

→

reason

cause

forbid 

 prohibit

boring

 dull

selfish

selfless/unselfish

valuable

valueless

动词 /名词/ 形容词

argument 

argue

surprise

surprised/surprising

explain 

explanation