顺序信号词
尤其在 流程图 的填空题中，或者描述实验步骤的独白中出现。
first, first of all, to begin with …
secon, then , next , before that, finally, last, meanwhile, until
Before I move on to …
Next, I’ like to …
Right, so the first thing …
An what about…?
One more thing
for one thing… for the other…
Finally, can you tell us…
last but not least
强调信号词
强调信号词有助于同学们对某一细节事实加深理解和认识， 往往其后跟的就是考点 。如果对这些词不敏感，答案往往就溜走了。而这些词之间会进行 同义替换 ，需注意甄别。
That is, That is to say, I mean, namely
in particular, especially,
to be exact,
in other wors, Let’s put it this way
并列或转折信号词
这类信号词可以说是逢考必出现，而且出现不止一次， 所以要求同学们熟练掌握。当听到表示转折的词或短语时，考生一定要集中注意力，因为此时speaker会提供新信息或完全相反的观点，也就是考点所在。
并列信号词：
an, as well as, together with, not only…but also…, also
转折：
but, however, actually, well, in fact, although, even if, espite, whereas, by/in contrast, by comparison, instea, otherwise
Eg.
Most people ten to book twenty-four hours in avance…however, the earliest you book a computer is forty-eight hours before you nee it.
题目：Computer can be booke up to ___hours in avance.
如果注意到however一词，可知正确答案应为48小时。
列举信号词
顾名思义，列举信号词是细节描述最常见的信号词，是 对同类事物的列举或对于上文的补充 。也就是说，出现这类词，一定是细节类的内容，比如例子等。若未听清其前面的内容，也可根据这类信号词推断前文。
for instance, for example, such as, like
in aition to, what’s more , furthermore, besies, moreover
小烤鸭们在平时练题时，与其花大量的时间去理解speaker说的每句话的意思，不如多关注这里给大家列出来的几类信号词，这样做题会更轻松更高效哦。
