★不定式短语“to make matters worse”由“虚词to + V(原)”构成，该短语常置于句首，之后置逗号，有副词功能，用以修饰全句：

to make matters worse,…——更糟糕的是，……

=what's (even/far) worse, …

类似常见用法有：

to tell (you) the truth,…——老实（对你）说，……

to be frank (with you),…——坦白（跟你）说，……

★实战演练：

——What's wrong with him?

——He missed the train to work.To make matters worse,he left his briefcase at home.

——他怎么了？

——他上班没赶上火车。更糟糕的是，他把公文包留在家里了。

——Did you like the movie?

——To tell the truth,I fell asleep in the middle of it.

——你喜欢这部电影吗？

——老实说，我看到一半时就睡着了。

——Do you like Picasso's paintings?

——To be frank,I don't know who Picasso is.

——你喜欢毕加索的画吗？

——坦白说，我不知道谁是毕加索。