问题
选择题
_______he is good at playing basketball, he failed to join the school basketball team yesterday.
A．Since
B．Unless
C．Though
D．Because
答案
C
题目分析：连词辨析。A自从，既然；B除非；C尽管；D因为；尽管他擅长与打篮球，昨天他却没有能参加校篮球队。故C正确。
点评：连词的词义辨析要放在上下文中进行，要特别注意个别连词的一词多义的现象。