連接詞體現的是句子內部和句子之間嚴謹的邏輯和論證推理關系，是英語語言的特色。連接詞是保證英語寫作通順連貫的一個重要因素。根據語法中的平行和從屬結構原則，一個復合句中至少要有一個連接詞，否則這個句子是不符合語法規則的。眾所周知，復合句運用的好壞與否直接影響著考生的作文分數的高低，因此廣大考生應該高度重視連接詞在寫作中的作用，為寫作部分得高分添加籌碼。為此，本文將連接詞的用法總結如下，以供考生參考學習。

　　一、表示時間方位關系的連接詞

　　at last, immediately, in the meantime, lately, meanwhile, shortly, afterwards, presently, since, temporarily, after, while, when...in (the) front of, in (the) back of, beyond, above, below, inside, outside, beside, on the left (right)...

　　二、表示次序關系的連接詞

　　in the first place, first of all, to begin with, initially, finally, to start with, what is more, furthermore, moreover, next, for another, besides, in addition to, first and foremost, last but not least...

　　三、表示因果關系的連接詞

　　because (of ), since, for, as, due to, owing to, result in (from), on account of, as a result of, for the reason, consequently, as a consequence, accordingly, therefore, hence, consequently...

　　四、表示對比關系的連接詞

　　instead, yet, however, whereas, nevertheless, in contrast, but, rather than, conversely, otherwise, on the contrary, likewise, similarly, in the same way, like, on the other hand...

　　五、表示舉例關系的連接詞

　　such as, for example, for instance, take...as an example, a case in point, namely, that is, like...

　　六、表示總結關系的連接詞

　　on the whole, to sum up, to conclude, in summary, in a word, on a large scale, in brief, in short, as far as i am concerned, to some extent, generally speaking, in a way, to take the idea further, as a rule, in terms of, in a sense...

　　七、表示讓步關系的連接詞

　　although, even though, in spite of , despite, even though, granted that...

　　八、表示條件關系的連接詞

　　providing that, as long as, no matter what, whatever,whenever...

　　還有表示選擇關系(如or,either...or..., neither...nor...)，遞進關系(even...)等的連接詞，大家在學習及寫作中要注意多總結多運用。

　　以下面的范文為例，考生可體會一下連接詞在整篇作文中的作用和用法。

　　with the development of economy and technology, there are more and more people using mobile phones. when(時間) you walk in a street, you can see some people using their phones 　　to chat, to send short messages or to browse the micro-blogs even(遞進) to watch videos.

　　just as(例舉)the picture shows, some people are using their phones while(時間) they are crossing the street. how dangerous it is to do this way. there are many traffic tragedies due to (因果)the inattention to traffic lights. though(轉折) the stick can help you, the stick doesn’t have a pair of eyes and it cannot tell you the dangers in front of(方位) you. there are many other 　disadvantages of overusing mobile phones such as(列舉) making our eyes near-sighted, having less face-to-face communication with our friends and so on(列舉).

　　the mobile phone definitely brings much convenience to our life, but(轉折)we cannot overuse it. we should make a good use of it and(并列) benefit from it.

　　由此篇范文可以看出，句子之間的連貫需要有連接詞來構筑，復合句內部必須要有連接詞。甚至段與段之間也需要連接詞，以達到通順、邏輯清晰的效果。