在OG给出的
“An essay at this level largely accomplishes all of the following:
1. Effectively addresses the topic and task.
2. Well organized and well developed, using clearly appropriate explanations, exemplifications, and /or details.
3. Displays unity, progression, and coherence.
4. Displays consistent facility in the use of language, demonstrating syntactic variety, appropriate word choice, and idiomaticity, though it may have minor lexical or grammatical errors.”
用好逻辑词会使得自己的思路表达很明确，内容结构很清晰。给大家整理了一些
1.增补(Addition)
in addition， furthermore， again， also， besides， moreover， what`s more， similarly， next， finally.
2.比较(Comparison)
in the same way， likewise， similarly， equally， in comparison， just as
3.对照(Contrast)
whereas， in contrast， on the other hand， instead， however，nevertheless， unlike， even though， on the contrary， while
4.因果(Cause and effect)
because， because of， for， since， due to， owing to， thanks to， as a result(of)， accordingly， hence， so， thus
5.强调(Emphasis)
certainly， above all， indeed， of course， surely， actually， as a matter of fact， chiefly， especially， primarily， in particular， undoubtedly， absolutely， most imprtant
6.让步(Concession)
although， though， after all， in spite of， nevertheless， still， provided， while it is true...
7.例证(Exemplification)
for example， for instance， that is， namely， such as， in other words， in this case， by way of illustration.
8.总结(Conclusion)
to sum up， to conclude， in a word， in short， in brief， all in all， in all， to put it in a nutshell， in summary
9.推断(Inference)
therefore， as a result(of)， consequently， accordingly， so， otherwise
10.时间和空间(Time and space)
afterward， after， first， later， then， soon， outside， near， beyond， above， below， on the right(left)， in the middle， opposite， in front of