题目内容：

It's very ( ) that every time I try to ride a bicycle ,I fall off.
A.discouraged B.discouraging Cdiscouragement D.being discouraged怎样分析此题?
请从句子成分,语法结构,时态等详细的分析.
句子翻译和各个答案的分析也要。

优质解答

be动词+形容词构成系表结构 故 排除C D 根据意思可知应 选 B discouraging [dis'kʌridʒiŋ]
adj.令人气馁的
A discouraged [dis'kʌridʒd]
adj.泄气的,沮丧的
discouragement [disˈkʌrridʒmənt]
n.挫折,气馁