01.Unprecedented construction of tens of thousands of monumental engineering projectsdesigned to control floods, protect clean water supplies, and provide water for irrigation and hydropowerbrought benefitsto hundreds of millions of people.

　　仿写输出：雅思写作社会类话题

　　前所未有的，旨在提升运输容量的公共交通体系的完善会给日常通勤者带来巨大便利。

　　02.Whereas prehistoric man had no exposure to urban lifestyles—the forcing house of intelligence—the evidence suggests that ants have lived in urban settings for close on a hundred million years,developing and maintaining underground cities of specialized chambers and tunnels.

　　仿写输出：雅思写作教育类话题

　　尽管实体课堂中的学生接触不到像特别广泛的知识—网络媒介的优势项—但他们能在课堂中更深层次地学习特定的科目，避免仅仅获取宽泛的信息。

　　03.An accident that occurred in the skies over the Grand Canyon in 1956 resulted in the establishment of FAAto regulate and oversee the operation of aircraft in the skies over the United States, which were becoming quite congested.

　　仿写输出：雅思写作科技类话题

　　在上世纪出现的计算机造就了历史性的技术革命，颠覆了人们处理信息的方式和速度，而这在当时本是十分耗费时间的。

　　04.Large sample international comparisons of pupils’ attainments since the 1960s have establishedthat not only did Japanese pupils at age 13 have better scores of average attainment,but there was also a larger proportion of “low” attainers in England, where, incidentally, the variation in attainment scores was much greater.

　　仿写输出：雅思写作社会类话题

　　大量的研究证明了不仅受教育程度高的人群有着更好的职业前景，而且犯罪率在教育普及度差的地区也较高。

　　05.In the face of the escalating perils from indiscriminate applications of pesticides,a more effective and ecologically sound strategy of biological control, involving the selective use of natural enemies of the pest population,is fast gaining popularity—though, as yet, it is a new field with limited potential.

　　仿写输出：雅思写作媒体类话题

　　面对日益严重的媒体失信问题，有效且严格的政策，包括惩罚记者的虚假报道等行为，正在普遍被许多国家采纳—尽管目前仅有着有限的普及率。

　　06.However, when we look at the 100 billion stars in our galaxy, and 100 billion galaxies in the observable Universe,it seems inconceivable that at least one of these planets does not have a life form on it; in fact, the best educated guess we can make’ using the little that we do know about the conditions for carbon-based life,leads us to estimate that perhaps one in 100,000 stars might have a life-bearing planet orbiting it.

　　仿写输出：雅思写作社会类话题

　　然而，当我们检测消费者的其他因素时，很难相信年龄是影响他们消费习惯的唯一因素;事实上，男性和女性在购物过程中的迥异行为使得我们猜测性别或许是另外一个重要因素。

　　07.The antiseptic properties of tannin, the active ingredient in tea, and of hops in beer—plus the fact that both are made with boiled water—allowed urban communities to flourish at close quarters without succumbing to water-borne diseases such as dysentery.

　　仿写输出：雅思写作饮食健康类话题

　　过度的饮食，不均衡的营养摄入和不规律的进餐—再加上缺乏运动—使得城市人口遭受着越来越多的健康问题。

　　08.If successfully implemented,proponents claim,vertical farms offer the promise of urban renewal, sustainable production of a safe and varied food supply (through year-round production of all crops), and the eventual repair of ecosystems that have been sacrificed for horizontal farming.

　　仿写输出-雅思写作文化类话题

　　如果可以被成功推行，正如一些人所声称的，文化传统的商业化可以提供充足的资金支持，来自游客的关注以及可持续的保护，以及那被人们长久遗忘的古老智慧的普及。