爱华网现在完成时（三）
这一讲，Master Osifu English继续以讲练结合形式为大家讲解现在完成时，通过练习，大家能够进一步理解现在完成时的用法。大家切记一点，学习语法，不仅仅为了考试。
1.Zhou Liang ______already ______in this school for two years.
A.was studying B.will study C.has studied D.are; studying
答案：C.
解析：此题的关键词是for+一段时间。这个短语出现，就意味着此句的时态是现在完成时，故选C.
2.His father ______ the Party since 1998.
A.joined B.has joined C.was in D.has been in
答案：D.
解析：此题的关键词是since+过去时间，与动词的现在完成时连用，且动词应该是延续性动词，join是短暂性动词，故选D.
3.—Do you know him well ? — Sure. We ______ friends since ten years ago.
A.were B.have been C.have become D.have made
答案：B.
解析：此题的关键词是since+过去时间点，此短语与动词的现在完成时连用，且动词应该是延续性动词。故选B.
4.He has ___ been to Shanghai, has he ?
A.already B.never C.ever D.still
答案：B.
解析：此题考查的是反义疑问句，反义疑问句的特点是：前肯后否或前否后肯，即前句肯定，那么后面的句子为否定，反之亦然。大家看到，后面的句子has he为肯定，那么前句必为否定，故选B.
5.Hurry up! The play __________ for ten minutes.
A.has begun B.had begun C.has been on D.began
答案：C.
解析：此句的关键词为for+一段时间，所以动词时态为现在完成时。for+一段时间与表示延续性的动词连用，begin是短暂性动词，故选C.
通过讲练结合的形式，对理解现在完成时更加有帮助。Master Osifu English希望大家用心读题及解题思路，祝福大家！
