eat作为动词，意思是吃;吃饭;用餐。它的第三人称单数是eats，过去式是ate，过去分词是eaten，是eating不是eatting，原因eat末尾有一个辅音字母t，因此，这个辅音字母不双写，构成动词ing形式直接加ing即可。

例句

1.We are eating more and exercising less.

我们吃得多了，锻炼却少了。

2.See just how much fat and cholesterol you're eating.

看看你究竟摄入了多少脂肪和胆固醇。

3.I was eating ham and Swiss cheese on rye.

我正吃夹火腿和瑞士干酪的黑麦面包。

4.He is poisoned by eating rotten meat.

他由于吃了腐肉而中毒。

5.I suppose you'd rather be in Chicago,eating waffles and hamburgers,or suchlike?

我想你可能更愿意呆在芝加哥，吃着华夫饼干和汉堡包之类的东西，对吗？