英语中用has是什么时态

has是表示“有”表示完成时态，have 的第三人称单数现在时形式；

例句

The information has been placed in the public domain.

这资料不受版权保护。

There has been a high uptake of the free training.

免费培训有很多人参加。

His quality of life has improved dramatically since the operation.

手术后他的生活质量大大改善了。

A new system has been devised to control traffic in the city.

控制城市交通的新系统已经设计出来。

The company has a long tradition of fine design.

这家公司的优秀设计历史悠久。

The country has a poor record on human rights.

这个国家人权记录不佳。

The Internet has become part of everyday life.

互联网已成为日常生活的一部分。