Abstract字数少，内容笼统，包括： background aim and thesis of the hod of sults of researchIntroduction要写的更细一些，在background在里要写之前别人的研究，你对实验结果的假设，在Aim里写你的research的具体详细的目标，还有针对这个目标，那几个问题是最有价值的，并把它们写下来。
写英文论文，你可以看一下网上的例子。比如：for example总的来说：generally首先，接着，最后:first， next， finally以下我帖了一些最最常用的连接词的分类，希望有用！另外:also，again，as well as，besides，coupled with，furthermore，in addition，likewise，moreover，similarly应为。。。所以: accordingly，as a result，consequently，for this reason，for this purpose， hence，otherwise，so then，subsequently，therefore，thus，thereupon，wherefore 一般来讲/总的来说: as a rule，as usual，for the most part， generally，generally speaking，ordinarily，usually 例子: chiefly，especially，for instance，in particular，markedly，namely， particularly，including，specifically，such as 充数、例子: for example，for instance，for one thing，as an illustration， illustrated with，as an example，in this case 强调 above all，chiefly，with attention to，especially，particularly，singularly 对比（相同）: comparatively，coupled with，correspondingly，identically，likewise，similar，moreover，together with 不包括: aside from，barring，besides，except，excepting，excluding，exclusive of，other than，outside of，save 重复: in essence，in other words，namely，that is，that is to say， in short，in brief，to put it differently 对比: contrast，by the same token，conversely，instead，likewise， on one hand，on the other hand，on the contrary，rather， similarly，yet，but，however，still，nevertheless，in contrast 步骤: at first，first of all，to begin with，in the first place，at the same time， for now，for the time being，the next step，in time，in turn，later on， meanwhile，next，then，soon，the meantime，later，while，earlier， simultaneously，afterward，in conclusion，with this in mind， 总结: after all，all in all，all things considered，briefly，by and large，in any case，in any event， in brief，in conclusion，on the whole，in short，in summary，in the final analysis， in the long run，on balance，to sum up，to summarize，finally Diversion: by the way，incidentally 方向: here，there，over there，beyond，nearly，opposite，under，above， to the left，to the right，in the distance
