我觉得如果您的这个文章是给老外看的话可以提及一些外国人比较熟悉和喜欢的中国菜肴,比如说回锅肉（double cooked pork),菠萝古老肉（fried pork with pineapple),宫保鸡丁（kungpao chicken),酸辣汤（hout sour soup),辣椒虾（pepper shrimp)等等.
站在我自己的角度,简单的帮您回答一下,仅供参考.
1、your favourite food and why you like it.
Actually,my favourite food is fried pork with pineapple,because the dish looks very pretty and taste even better.the fried pork mixed with sweet pineapple,it is so special and delicious!
我最喜欢的菜就是菠萝古老肉,因为这道菜看起来很漂亮,吃起来感觉更好!油炸的猪肉混合着甜甜的菠萝,简直太特别并且好吃极啦.
2、some food you have tried but didn't like.And why you don't like it.
Well,I don't really like double cooked pork because it is quite greasy.
呃,我不大喜欢吃回锅肉,因为这个菜太油腻啦.
3、some food you have always wanted to try.
I would like to try some real Mexican food,I saw them on TV and it just seems fabulous!
我很想尝试一下法国菜,我在电视上看见他们,简直太棒啦!
我觉得您还是应该按照自己的情况来回答呵.