  Reading comprehension is an important ability of human intelligence. Literacy
and numeracy are two most essential foundation for people to succeed at study,
at work and in life. Reading comprehension ability is a core component of
literacy. In most of the education systems, developing reading comprehension
ability is compulsory in the curriculum from year one to year 12. It is an
indispensable ability in the dissemination of knowledge. With the emerging
artificial intelligence, computers start to be able to read and understand like
people in some context. They can even read better than human beings for some
tasks, but have little clue in other tasks. It will be very beneficial if we
can identify the levels of machine comprehension ability, which will direct us
on the further improvement. Turing test is a well-known test of the difference
between computer intelligence and human intelligence. In order to be able to
compare the difference between people reading and machines reading, we proposed
a test called (reading) Comprehension Ability Test (CAT).CAT is similar to
Turing test, passing of which means we cannot differentiate people from
algorithms in term of their comprehension ability. CAT has multiple levels
showing the different abilities in reading comprehension, from identifying
basic facts, performing inference, to understanding the intent and sentiment.
