（5）原因分析1. A number of factors can account for the increase in deaths from heart disease.2. Another important factor is the availability of the Internet.3. Finally, the creation of more jobs is responsible for the change/ increase/ decrease/ growth.4. Why does this phenomenon appear? I think there are several possible reasons for this situation.

　　（6）建议措施1. It is high time that parents, educators and the government made concerted efforts to put an end to this situation.2. The best way to solve this problem I think is to give young people opportunities to do things independently.3. It is imperative that drastic measures should be taken to end poverty worldwide.4. These are not the only three measures we can take. But it should be noted that we need to take strong action to eliminate the use of illegal drugs.5. Only in this way can we overcome this difficulty, and .we will have a bright future．