As and Like

K. Like = ‘similar to’ or ‘the same as’ (e.g. What a beautiful house! It’s like a palace. (not as a palace))
a. In above sentence, like is a preposition. So it is followed by a noun (like a place), a pronoun (like me/ like this) or ~ing (like walking).
b. also say ‘~ like (somebody/ something) doing something’ (e.g. What’s that noise? It sounds like a baby crying.)
c. Sometimes like = for example. (e.g. Some sports, like motor-racing, can be dangerous.)
d. also use such as (=for example). (e.g. Some sports, such as motor-racing, can be dangerous.)
e. In similar sentences that use like and as, the meanings of each sentence are very different (as = same, like = similar) (e.g. As your boss, I must warn you to be careful. (I am your boss.) Like your boss, I must warn you to be careful. (I am not your boss, but he/she and I have similar attitudes.))
f. As (preposition) = in the position of, in the form of etc. (e.g. A few years ago I worked as a taxi driver. (not like a taxi driver))

more about the Conjunction …