12.Of course,the conditions of work are very different:The Ponlytechnic is offering two-year contract which could be renewed,but the language school is only offering a years contract,and thats a different minus.

　　六級詞匯講解:

　　該句較長，出現在長對話之中。of course放在句首或句末時起強調作用。offer意為提供，通常指主動提供。which引導的是two-year contract的定語從句，其中renew意為使繼續有效;延長期限。minus此處意為缺點，是該句的聽音難點所在。

　　英語六級考點歸納

　　minus作名詞時，有以下含義:

　　負號，減號。如:

　　Dont forget the minus when you add them up，

　　求和時別忘了負號。

　　不利條件，不足，缺點。如:

　　We should consider the pluses and minuses of the system.

　　我們應該考慮一下該系統的優點和缺點。