3、 There is a public / general / much debate / discussion / controversy today / nowadays on / about / over / as to the problem / issue of....

Those who criticize / oppose / object to / contend / argue ... that....

They believe that ....

But people who advocate / favor ..., on the other hand, maintain / assert that....

3.1 There is much discussion today about whether fast economic growth is desirable. Those who criticize economic growth argue that we must slow down. They believe that society is approaching certain limits on growth. These include the fixed supply of natural resources, and the possible negative effects of industry on the natural environment. People who want more economic growth, on the other hand, argue that even at the present growth rate, there are still many poor people, They maintain that only continued growth can create the capital needed to improve the quality of life and provide the financial resources required to protect our natural surroundings from industrialization.

現在圍繞快速的經濟發展是否應該正展開一場熱烈的討論。那些持反對意見者認為我們必須放慢發展速度。他們說發展已接近某種極限！這其中包括有限的自然資源供應和工業對環境造成的消極影響。然而要求更快發展的人則認為，即使按目前的發展速度還是有許多窮人。他們認為經濟的持續快速發展才能創造提高生活質量所必需的資本，才能提供用來保護環境不受工業化破壞的資金。

3.2 There is a general debate on the campus today over the phenomenon of college students' doing a part-time job. Those who object to it argue that students should not spend their precious time in this way. But people who advocate it, on the other hand, claim that, by taking a major-related part-time job or summer job, students can not only improve their academic studies, but gain much experience, experience they will never be able to get from the textbooks.

關于大學生打工這一現象，校園里正展開一場討論。反對大學生打工的人指出大學生不應該把寶貴的時間花在這上面。然而贊成者則認為，通過從事一些與專業有關的工作，可以提高學生的學習，還可獲得到書本上得不到的許多經驗。