XX可解釋XX的現象.

Sentence patterns to express reasons

1. There are probably many causes/reasons for ...+現象

e.g. There are probably many reasons for the popularity of video games among teenagers.

2. +(cause)  can account for + 現象

e.g. Lack of parental care and heavy academic pressure can account for the significant growth in the number of teenage suicide. 

3. Among the most convincing reasons cited by people for the + 問題 is...

e.g. Among the most convincing reasons cited by people for the marked increase in the number of obese children is the popularity of junk food.