请找出这段英文的语法错误?By analyzing the status quo of Beijing’s monitoring and control of vector for past 30 years,find out the existing problems,and propose solutions to these problems.Consult historical infor
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By analyzing the status quo of Beijing’s monitoring and control of vector for past 30 years, find out the existing problems, and propose solutions to these problems.
1. By 短语是方式状语,后面的谓语动词find out和 propose 没有主语,有两种办法修改,一是添加主语,二是改为被动语态如下：
the existing problems have been found out and solutions to these problems have been proposed.
2. monitoring 的含义中已经包括了 control,两词同用重复；
3. Beijing’s monitoring：“'s” 只用于表示有生命的名词或度量名词,这种用法也时有出现,但不符合语法规范,改为 monitoring by Beijing（由北京实施的监控）
Consult historical informations about Beijing’s monitoring and control of vector since the Beijing city constructed,and then evaluate the present situation.
1. 如果看作是 祈使句 + and 结构（这样做的话,那么就会...）,似乎不是你要表达的意思.所以还是没有主语,但是用被动语态句子又显得凝重,一种办法是另加主语以主动形式出现.
2. 既然有 since 从句,必须用完成时态.
3. 或者把前面变成分词短语作状语：
Having Consulted historical informations ... since ..., the present situation will be evaluated. (主句用了被动)
Strengthens the research of vector monitoring and control method, pletes the urban health infrastructure, adopt environmental governance-based prehensive prevention and treatment measures,
问题基本同上,但是并列的动词 Strengthens和pletes 在没有单数人称的前提下都用了第三人称.修改方法参照上面.
That is the fundamental guarantee of effective control of outbreak of insect-borne infectious diseases in Beijing.
这句应该是前面的非限制性定语从句吧,that 改为 which 并小写.
We must insist the integreted control principle, establish long-term prevention and control management mechanisms , in order to solve the vector monitoring and control issues fundamentally.
1. insist on the integreted control principle;
2. 只有两个分句并列, 无须再用逗号：insist ... and establish ...
初稿算是完成,原为适当作了修改.
本文通过分析30年来北京市病媒生物监测与控制工作现状寻找存在问题从而提出解决问题的对策
Proceeding from casting about for existing problems, this paper has put forward a countermeasure to end the issue by analyzing the status quo of the task for monitoring exno-organism for the past 30 years in Beijing.
加强病媒生物监测及控制方法研究,做好城市卫生基础建设,采取以环境治理为主的综合防治措施,是北京有效控制虫媒传染病暴发流行的根本保证.
It is ultimate warranty for Beijing to control entomoplily infectious diseases from its epidemic breaking out effectively by strengthenong to