第一段

　　1)There is a heated (much, public, bitter, general) debate (discussion, dispute, controversy) as to (about, over) whether a mother’s first duty is to her children or her career. People with a conservative attitude claim that a mother should devote all her time to looking after her children. Others who consider them progressive say that her regular job comes first.

　　2)A public debate has arisen as to the phenomenon.

　　3)After this incident, an increasing heated debate has arisen as to the issue of Whether the famous people are treated fairly or whether their privacy should be protected,

　　4)The issue of whether or not we should encourage students to evaluate their teachers has been widely debated in the universities.

　　第二段

　　1、Those who support (are in favor of, prefer, favor, advocate) to use surveillance cameras in supermarkets insist (say, hold, assume, think, consider, suggest believe, contend, maintain,) that it is the best way to protect the owners' profits.

　　2、On the one hand,

　　第三段

　　1、Those who oppose (are against, criticize, object to) it argue that such instruments show distrust of customers.

　　2、On the other hand,

　　结尾段

　　1) All in all, (on the whole, in conclusion, in summary, in one word, to sum up), the best solution is for both sides to respect each other’s needs.

　　2) From the above discussion, we can say that there is some truth in both sides. As for me, I would like take a balanced position. In my opinion…

　　3 Admittedly, people rarely reach an absolute consensus on such a controversial issue.

　　As far as I am concerned, I think…

　　4) In short, (For my part, personally,) I agree (am in favor, prefer,) that modern technology, such as the Internet, will one day replace the written word as the main source of information.

　　6)

　　In one word, I’m in favor of the second opinion.