一：words and expressions
1.go wrong / get out of control
2.it is as if a single unimportant event set up a chain of reactions
5處連讀阳谍。a chain of reactions 一串連鎖反應(yīng)
3.it marks the prelude to an unforeseen series of catastrophes.
prelude：if an event is a prelude to a more important event, it happens just before it and makes people expect it
Catastrophe/disaster:a terrible event in which there is a lot of destruction, suffering, or death
4.attend to somebody /something
to deal with business or personal matters
5.reduce somebody to tears / silence
to make someone cry, be silent etc
6.on a big scale
on a large /small /grand etc scale
7.get into a panic
8.make the driver brake hard
9.be thrown forward
10.draw up
if a vehicle draws up, it arrives somewhere and stops
11.pull up
to stop the vehicle that you are driving
12.all of a sudden =suddenly
13.pile up
To? increase in quantity or amount, in a way that is difficult to manage
14.get the traffic on the move
15.benifit from all this confusion
