Question

4．因为这场战争，这个国家被分割成了三部分．This country was divided into three parts because of the war．．

Answer 1

分析 This country was divided into three parts because of the war．

解答 答案：This country was divided into three parts because of the war．
表达的是过去的事情用一般过去时，分成…divide sth into…，主语this country是动词divide的承受者，构成被动关系，故用一般过去时的被动语态was/were+过去分词，主语三单，故was，故This country was divided into three parts，由于战争用because of后加名词the war，故答案是This country was divided into three parts because of the war．

点评 because是连词，其后接原因状语从句或回答以why开头的问句； 
而because of是复合介词，其后接名词、代词或动名词．