Yes, you can introduce yourself first just like you said:Originally Posted by weiqun ding
"Hi, My name is "so and so" and I come from China"
"Hi, let me introduce myself; my name is "so and so" and I come from China"
or "Hello everybody, first let me introduce myself....."
" Good Morning everybody. I will be your English teacher for this semester and my name is..."
"Hello, everyone! This is our first class in English and I will be your English taecher this year. My name is..."
etc, etc. :D