以下是新东方在线雅思网给大家分享的雅思写作中的易错语法：双谓语。希望对大家的雅思备考有所帮助，更多雅思备考资料欢迎大家随时关注新东方在线雅思网。

　　确保一句中有且仅有一个谓语动词

　　错例：It is unclear recycling can control pollution.

　　正解：It is unclear whether recycling can control pollution.

　　改错练习：

　　1. It is advertising makes us buy something impulsively.

　　2. There are two line charts show the unemployment rate fluctuates in China.

　　3. The percentage of families have one car increased greatly.