I agee with the speake's oad assetion that money spent on eseach is geneally well invested. Howeve, the speake unnecessaily extends this oad assetion to emace eseach whose esults ae "contovesial," while ignoing cetain compelling easons why some types of eseach might e unjustifiale. My points of contention with the speake involve the fundamental ojectives and natue of eseach, as discussed elow.
Thee is much deate ove the univesal issues whethe o not tadition and modenization ae incompatile. Some people may claim that they necessaily conflict with each othe, while othes ague that the two ae not mutually exclusive. Insofa as I can think, the est way is to coodinate them and exet thei own advantages fo contempoay society.
第一句改写题目，第二句比较两种立场，第三句提出自己的观点。这种开头比较简单易学，也是同学们比较常用的开头方式，需要注意的是在点明自己的观点的时候，最好把下文中要进行分层论证的关键词结合到句子里面，比如上述例子中的coodinate ;exet thei own advantages，可以起到引领下文，令文章结构严谨的作用。
Explosive development of science and technology has een made duing the past one hunded yeas o so. When it comes to pogess of the condition of humanity all ove the wold, thee ae always a host of diffeent opinions held y diffeent individuals fom diffeent aeas. Have, you may wonde, the technology developments o innovations contiuted to pomoting ou humanity? Admittedly, most people would conside that thee ae still so many toules with us such as povety, violence, conflicts and even was. Howeve, as a whole effect in geneal, technology pogess has in fact, tend to lead to a significant pomotion of the oveall condition of humanity in the wold.