Pretest: What do I already know?

9. Both Mexico City
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and New York 
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face challenging futures.
Adjective Clauses 
297 

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EXERCISE 56 
11> 
Reading and grammar. 
(Charts 13- 2 and 13-11) 
Read the passage. Find the 7 adjective clauses where 
who, 
that, 
or 
which 
have been omitted. Rewrite them using 
who, 
that, or 
which. 
�o Y�u know these words2
genius 
-unconscious
- sought
-altered
An Accidental 
Jason Padgett was not much of a student. A college dropout, he worked for his father at 
a furniture store in Tacoma, Washington. He thought of himself as a playboy and didn't 
think that school was important. 
In 2002, at the age of 31, Jason's life changed 
forever. He left a karaoke bar one night, and 
while he was walking home, two men attacked 
him. They knocked him to the ground uncon­
scious. After treatment at a hospital, he went 
home. The next morning he woke up and 
noticed that his vision was different. He saw 
geometric designs in the objects he looked at. 
Water pouring from a faucet had crystal struc­
tures. These were details he had never seen 
before. He began to draw complex patterns, 
some taking him weeks to finish. Before his 
injury, Padgett had never studied beyond pre­
algebra. Now he saw mathematical structures 
everywhere. 
He sought the help of a doctor; who told 
Padgett that he had become a math genius 
because of the injury. Eventually he went to 
Finland to meet Dr: Berit Brogaard, a specialist 
in brain injuries. Dr: Brogaard used a special 
MRI machine* to study Padgett's brain and 
discovered that the part of the brain used for 
math was more active. The injury had altered 
his brain to make it very specialized in math. 
Padgett went back to school to study ad­
vanced math. Sometimes he knew more than 
his teachers. He also wrote a book ,