Appendix 3: Essential
Ideas
IELTS Essays,
Letters, Graphs, Diagrams & Maps
141
It is not yet known if weather conditions played a part in the accident.
The genius of the two designers has played a big part in the company's recent success.
Contribute to
An increase in the price of drugs has contributed to the rising cost of medical care.
It is thought that the pilot's negligence may have contributed to the disaster.
Contributory cause/factor
One of several causes of something that happens, but not the main cause
Malnutrition was considered to have been a contributory cause of death.
Alcohol is a contributory factor in at least 50% of the violent crimes reported.
7.
something that
makes something else happen
Cause
Something that makes something else happen
Doctors cannot find a cure for the illness until they have identified the cause.
Cause of
Investigators are still trying to determine the cause of the accident.
Root cause
(=basic cause)
The root cause of the current energy crisis is that we simply use too much energy.
Factor
The price of insurance depends on several factors, including the age of the car.
Factor in
His girlfriend lives in London and I'm sure that was a factor in his decision to move there.
Key factor
(=very important factor)
Money will be the key factor when we decide to buy a new house.
Deciding/determining factor
(=the thing that finally makes something happens)
Race should never be a deciding factor in a hiring decision.
Reason
"Why are you helping her?" "She asked me to. That's the only reason."
The main reason she quit is that she was not being paid enough.
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