His achievements make many people sit up and take notice.

他的成就使许多人刮目相看。

　　固定表达“sit up and take notice”，表示的是，开始并没有引人注意，后来因为某件事使人评价很高。与汉语中的那个成语“刮目相看”的意思几乎完全一致。
　　例句：
　　He has published a number of books and they all become best-sellers, the fact of which makes many people sit up and take notice.
　　他最近出了几本十分畅销的书，这使得很多人对他刮目相看。