要求：
Write a short abstract about 200 words based on your own understanding of it.
The malaria death given birth to trillions of mosquitoes by human blood stream becomes more seriously. As a result, this passage attempts to illustrate how malaria becomes a prevalent disease by contrastive analysis in different diseases and regions. What's more, it has adopted Selinker's Contrstive Analysis theory to gather the relative datas .After the study, it finally got that the lack of financial backing to malaria , the instability of malaria , the deteriorations of infrastucture and poor sanitation are four factors which cause a certainly boosting death rates of malaria. So an abundant use of synthetic pesticides for killing the mosquitoes should be the direction of policy to kill the parasites. As the influence of malaria in the world has spread by this study, it may be helpful to enhance awareness of how to treat malaria and correctly guide the people in finding the solution of malaria death. The importance is that it can raise concern in the world about malaria and give the assistance to the injured people.
本文来源：https://www.2haoxitong.net/k/doc/9eae3bb67e192279168884868762caaedc33ba74.html
文档为doc格式