pron. & a. As a demonstrative pronoun, this denotes something
that is present or near in place or time, or something just mentioned,
or that is just about to be mentioned.
pron. & a. As an adjective, this has the same demonstrative
force as the pronoun, but is followed by a noun; as, this book; this
way to town.
pron. 这, 本
a. 这, 本
adv. 这么
1. This is my favorite book.
这是我最喜欢的书。
2. Can you help me with this problem?
你能帮我解决这个问题吗？
3. I will take this one, please.
请给我这个。