Part One Academic Words Task 1 Directions：Listen carefully
Note down the academic words you hear
Every word will be read twice
Refer to your dictionary if necessary
permutation [n
] an event in which one thing is substituted for another 2
confine [v
] to keep something or someone within a limited area so it cannot escape 3
accumulation [n
] the act of getting or becoming bigger or more over time 4
bacteria [n
] the very small creatures that cause diseases in humans and animals 5
diagnostic [a
] used for making a judgment about what a particular problem is 6
denote [v
] to be a name or symbol for 7
commodity [n
] something useful or valuable, usually for sale 8
thesis [n
] a long essay; a position taken in an argument supported by a set of reasons 9
discipline [n
] a branch of
