GRE

26 Studies carried out by Turner of many thousands of New and Old world specimens, both ancient and modern, suggest that the majority of prehistoric Americans are linked to Northern Asian populations by crown and root traits such as incisor shoveling (a scooping out on one or both surfaces of the tooth, single-rooted upper first premolars and triple-rooted lower first molars.

典型句式：A such as B，C and D.

句子主干：Studies suggest that 宾语从句。

翻译：T 对新世界和旧世界的，既有古代的又有现代的众多样本的研究表明，大多数史前美洲人通过牙冠和牙根的特征，例如门齿的铲型结构(牙齿一面或两面的勺子状)，单根状的上前磨牙以及三根的低前磨牙，与北亚洲人密切关联。

27 Education in those days was much simpler than it is today and covered basic literacy skills and religious education.

典型句式：and并列句，本句为一个主语引出两个并列谓语结构;共同的主语是education( in those days), 前一分句为比较结构 was much simpler than，而后一分句谓语为covered.

句子主干：Education was simpler and covered something.

翻译：当时的教育远比今天简单，(只)包含基本的识字技能和宗教教育。

28 Ideas about the value and purpose of education have also changed and with the increasing sophistication of workplaces and life skills needed for a successful career, the curriculum has also expanded to try to prepare children for the challenges of a diverse working community.

典型句式：and连接的并列分句。With独立结构表原因。

句子主干：Ideas have also changed and the curriculum has also expanded.

翻译：关于教育的价值和目的的思想也发生了变化，并且，随着工作场所以及成功职业所要求的技能的复杂化，为了帮助孩子准备应对多样的工作场所的挑战，课程的内容也随之扩展了。

29 A few examples are garlic, which is said to help with colds or high blood pressure, ginger to help with headaches or toothache, or the magnolia tree which is used in Chinese traditional medicine to treat some forms of cancer and heart disease.

典型句式：主干与修饰

句子主干： examples are garlic, ginger, or the magnolia tree. 三个例子各带有很长的修饰成分，尤其是ginger后面是动词不定式引导的定词成分，特别不容易分辨。

翻译：举几个例子：大蒜，据说能帮助治疗感冒和高血压，姜，能治疗头疼和牙疼，还有木兰树，它在中国传统医学中用来治疗某些癌症和心脏病。

30 People are increasingly aware of the dangers of an unhealthy diet, and the manufacturers of processed food know that sales will increase if they can advertise that their products have less salt or sugar.

典型句式：and连接的并列句。前一分句为简单句，后一分句包含一层套一层的三个从句。that引导的宾语从句里套了一个if引导的状语从句，而这个状语从句里又套了一个that引导的宾语从句。

句子主干：People are aware of the dangers, and the manufacturers know that 宾语从句。翻译：人们越来语认识到不健康食物的危害，工业加工食品制造商也知道，如果他们能宣传他们的产品含有更少的盐和糖，就能促进销售。

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GRE句子填空题典型句式结构5

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