There are 2 words in Japanese that are translated as "this" in English:
これ kore - When "this" is not connected to a noun - hang on you will get it in a minute
これ は 何 です か？
kore wa nan desu ka?
What is this?
これ は ねこ です。
kore wa neko desu.
This is a cat.
To say "This is" or "is this" the kore will probably be followed by a は wa
この kono - When you put "this" before a noun, it changes to kono