These sentences seem to be examples of using “such” to emphasize qualities or characteristics:
4. There was such a noise.
5. The storm was so terrible.
6. Our soldiers fought so bravely.
7. It rained so heavily.
8. He is such a man.
In each sentence, “such” is used to emphasize the intensity or extent of the noun that follows it. For example, “such a noise” emphasizes the magnitude of the noise, and “such a man” emphasizes the remarkable qualities of the man being referred to.
