引出開頭

　　1：It is well-known to us that……(我們都知道……)==As far as my knowledge is concerned, …( 就我所知…)

　　2：Recently the problem of…… has been brought into focus. ==Nowadays there is a growing concern over ……(最近……問題引起了關注)

　　3：Nowadays(overpopulation)has become a problem we have to face.(現今，人口過剩已成為我們不得不面對的問題)

　　4：Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.(互聯網已在我們的生活扮演著越來越重要的角色，它給我們帶來了許多好處但也產生了一些嚴重的問題)

　　5：With the rapid development of science and technology，more and more people believe that……(隨著科技的迅速發展，越來越多的人認為……)

　　6：It is a common belief that……==It is commonly believed that……(人們一般認為……)

　　7：A lot of people seem to think that……(很多人似乎認為……)

　　8:It is universally acknowledged that + 句子(全世界都知道...)

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