雅思考试写作考前押题预测

　　20.Some people think technology is better for improving the environment than living　simpler life. Do you agree or disagree? 　　21.In schools and universities, some girls tend to choose arts subjects and become　teachers or nurses etc, but boys choose to study science subject and graduate as leaders or　serve in the army. What are the reasons? Do you think this trend should be changed?