1.比較對照
比較對照有兩種，一是逐點比較，二是整塊比較，即AB交錯或先A后B：
1)逐點比較：多數人認為這種AB交錯的方式可以避免行文的單調沉悶，對比的效果更鮮明突出。如：
There are basic differences between large and small enterprises. In a small enterprise, you operated mainly through personal contacts. In a large enterprise, you have established “policies” , “channels” of organization, and fairly strict procedure. In the small enterprise you have immediate effectiveness in a very small area. You can see the effect of your work and of your decisions ground. In the large organization you are normally taught one thing thoroughly. In the small one the danger is of becoming a Jack-of-all-trades-but-master-of-none. In the large it is of becoming the man who knows more and more about less and less.
2) 整塊比較
It is easy to be a winner. A winner can show his joy publicly. He can laugh and sing and dance and celebrate his victory. People love to be with winners. Winners are never lonely. Unlike winners, losers are the lonely ones of the world. It is difficult to face defeat with dignity. Losers can not show their disappointment publicly. They can not cry or grieve about their defeat. They may suffer privately, but they must be composed in public. They have nothing to celebrate and no one to share their sadness.
2.分類
分類是人類認識客觀世界的'重要手段之一，也是描寫事物、解釋觀點最有效的方式之一。通過將一事物分類，可使復雜事物變得清晰明了，便于作者闡述自己的觀點。
分類段落的各類排列要條理，可采用從主要到次要，從次要到主要，從多到少或從少到多等方式排列，亦可平行排列。如：
1) As far as political views are concerned, people fall into three categories. First are the conservative people. Conservatives are opposed to sudden or great changes. Second are the liberal people.These people are in favor of progress and reform. But their opinions often seem to idealistic. The third type is the moderate people. The moderates keep everything within reasonable limits. They are more practical in this hard world. In my opinion, most people seem to belong to this group.
