<一> 原因結果分析
3-1-1. 基本原因 --- 分析某事物時, 用此句型說明其基本的或者多方面的原因.e.g:[1]. Why ... ? For one thing.. For another ...
[2]. The answer to problem invovles many factors. For one another...... Still another ...
[3]. A number of factors , both physical and psychological affect ..../both individual and social contribute to ....
3-1-2 另一原因 ----在分析了基本原因之後, 再補充一個次要的'或者更重要時用!e.g:[1]. Another important factor is ....
[2]. ... is also responsible for the change/problem.
[3]. Certainly , the ... is not the sole reason for .....
3-1-3 後果影響 -----分析某事物可能造成的後果或者帶來的影響 .
e.g:[1]. It will produce a profound/far-reaching effect/impact on....
[2]. In involves some serious consequence for ........
<二> 比較對照句型
3-2-1. 兩者比較 ---> 比較兩事物，要說出其一超過另一個, 或肯定一事物的優點, 也肯定其缺點的時候用 !
e.g:[1]. The advantages gained from A are much greater than the advantageswe gain from B.
[2]. Indeed, A carries much weight when compared with B.
[3]. There is no doubt that it has its negative effects as well aspositive effects.3-
2-2 . 兩者相同/相似 ---> 比較兩事物共同都有或者共同都沒有的特點時用!
e.g:[1]. A and B have several thing in are similar in that.....
[2]. A bears some sriking resemblance(s) to B.
