谓语:是对主语动作或状态的陈述或者说明，指出“做什么”，“是什么”或“怎么样”。谓语动词的位置一般在主语之后。   　　常作谓语的有系动词、及物动词、不及物动词、情态动词等。   　　主+系+表   　　Child obesity is a common phenomenon that stuns no people. 　　儿童肥胖是一个普遍的现象，这已经不足为奇了。   　　主+谓[及物动词(Vt.)]+宾   　　Man has damaged the environment to the extent of ruining his own living space. 　　人类破坏环境已经达到毁掉自己生存空间的地步。   　　主+谓[不及物动词(Vi.)]   　　Leaves fall when wind blows. 　　风吹叶落。   　　there be句型   　　There is no denying that advertisements, as a matter of fact, have begun to dominate our daily life. 　　不可否认的是，事实上广告已经开始主宰我们的生活。   　　情态动词+动词原形:might/may/could/can/should/ought to/must/have(has) to+do(动词原形)   　　In this way, teachers can never be replaced by computers. 　　从这个角度来说，老师永远也不能被电脑替代。   　　If love between the two can last long, why need they stay together night and day? 　　两情若是长久时，又岂在朝朝暮暮!