What is This ?
This is (adj), (pron) used to show something which is nearer or in the present, in contrast to something else This is the shop I was telling you about. I prefer these earrings to those ones. I saw him on the train this morning. My mother is coming for tea this afternoon. I expect to hear from him this week. (NOTE: The plural is these.) (adv) so much I knew you were going to be late, but I didn’t expect you to be this late.
source: Easier English, Student Dictionary Upper Intermediate Level