59. ________ you are a Chinese, you cannot possibly know all the Chinese words.
(A) Even if
(B) Because
(C) As long as
(D) As soon as

even if與even though兩個連接詞組之間有重要的差別。

　以even if連接的子句，是尚未發生的事或者一般會出現的狀況。其意思是儘管「可能」出現某些狀況，亦不會改變某人的行為或某些事發生。換言之，even if的涵義，與whether or not差不多。例如：

　He is an arrogant guy. He will not apologize even if he makes a mistake.

　他是很高傲的人。儘管他犯了錯，也不會道歉。

　I hope to go on a holiday even if it is only for a few days.

　我想去度假，儘管只是幾天也好。

　上面的例子可以看到，even if 連接的子句，是描述一般的狀況或者尚未發生的事（he makes a mistake 和 it is only for a few days）。

Even though「已經」發生

　Even though則不同。這個詞組連接的子句，通常涉及一些已經發生的事或者已經存在的狀況。其意思是儘管「已經」出現某些狀況，亦不會妨礙某人的行為。even though的涵義，與although差不多，但在詞調上比較強烈。例如：

　He did not apologize even though he had made a mistake.

　儘管他犯了錯，仍然不肯道歉。

　He decided to go away for holiday even though he had hurt his leg.

　儘管他傷了腿，他仍然決定去度假。

　上面的例子可以看到，even though連接的子句，是描述已經發生的事，或者已經存在的狀況，（he had made a mistake和he had hurt his leg），用的是過去式。

As long as

=so long as

=if only

as long as 只要…