GMAT语法突击点.

　　GMAT语法重点批判原句的提法，主要是对一些GMAT语法题的讲解或更正，通过详细的选项分析，希望同学们能够掌握解题的要点。

　　Polio, although it is eradicated in the United States, it continues elsewhere and is able to be brought into the country by visitors.

　　(A) Polio, although it is eradicated in the United States, it continues elsewhere and is able to be

　　(B) Polio, although eradicated in the United States, it still continues elsewhere and can be

　　(C) Although still continuing elsewhere, polio has been eradicated in the United States and could be

　　(D) Although having been eradicated in the United States, polio still continues elsewhere and is capable of being

　　(E) Although eradicated in the United States, polio continues elsewhere and could be

　　(A) 句子结构复杂; be able to do表示拥有能力去做的意思, 用在此处不合适; it continues中的it多余,因为去掉插入语although后,句子变为Polio it continues…,it和Polio重复

　　(B) it多余

　　(C)随意替换Although的内容, 更改了原句的意思

　　这里的要害不是什么“改变原句“的意思，大仙已经再三强掉，A不代表作者本来想表达的意思，所以也不存在“原句”的提法。判断意思对不对，唯一的标准是逻辑。这句的要害在于，假如用转折关系来修饰Polio继续这个事儿，则把该病被除掉以及可以被带到世界其它地方变成了并列关系。而实际上那2者按照意思应该是转折关系。

　　(D) having been eradicated使用错误,应该去掉having been; is capable of being表示拥有某种能力,用在此处不合适

　　(E) 正确,整个句子简洁,表达清晰,用could表达一种可能性

　　The single-family house constructed by the Yana, a Native American people who lived in what is now northern California, was conical in shape, its framework of poles overlaid with slabs of bark, either cedar or pine, and banked with dirt to a height of three to four feet.

　　(A) banked with dirt to a height of

　　(B) banked with dirt as high as that of

　　(C) banked them with dirt to a height of

　　(D) was banked with dirt as high as

　　(E) was banked with dirt as high as that of

　　(A) 正确，banked with与overlaid with并列，height of +数量词，表高度，例如a height of 6000 metres。

　　(B) that没有指代对象。

　　(C) 复数them没有指代对象，前面是单数名词framework。

　　(D) and was banked...在语法上与主句was conical…并列，改变原句意思。

　　(E) and was banked...在语法上与主句was conical…并列，改变原句意思;that没有指代对象。

　　妖雾又重来!你妹的“原句”!。谁和谁并列，不是看A选项规定谁和谁，而是看谁和谁有资格并列。此处如果使用D或者E的话，则把圆锥形和banked with …..并列，显然不如overlaid with 与banked with 并列合理，因为这2者都是提到了材料的问题。

　　Unlike many United States cities, where a river is no longer the focal point of urban life, the river in San Antonio winds through the middle of the business district, and the River Walk, or Paseo del Rio,is the city's most popular attraction.

　　(A) Unlike many United States cities, where a river is no longer the focal point of urban life, the river in San Antonio

　　(B) Unlike the river in many cities in the United States, which is no longer the focal point of urban life, in San Antonio the river

　　(C) Today the river in many cities in the United States is no longer the focal point of urban life,unlike San Antonio, where it

　　(D) In few United States cities today, a river is the focal point of urban life, but the river in San Antonio

　　(E) No longer do many cities in the United States have a river as the focal point of urban life, but in San Antonio the river

　　(A) unlike连接比较对象不平行，cities和river。

　　(B) which指代United States错误，应该指代river。

　　(C) unlike一般不置于句中，容易产生对比歧义;it指代错误，在逻辑上不能指代前面的river。

　　(D) 去掉no longer，把全部否定变成部分否定，改变了原句意思。

　　此选项真正的要害不在部分还是全部否定，因为我们也不知道作者是想写成部分还是全部否定，而在于一处非常简单划线内外呼应关系，划线外面的一个完整句子，是以the river开头的，这条河也应该在那个市的里面，所以San Antonio必须出现在the river的前面，同时修饰两条河。另外today的修饰对象也有问题，如果放于句首会清楚一些。

　　(E) 正确，but连接并列的分句，不需要形式上完全对等。

　　Like the great navigators who first sailed around the Earth, to gather information about its size and curvature of its surface, new observations have been made by astronomers that show with startling directness the large-scale geometry of the universe.

　　(A) Like the great navigators who first sailed around the Earth, to gather information about its size and curvature of its surface, new observations have been made by astronomers

　　(B) Like the great navigators who first sailed around the Earth for gathering information about its size and also the curvature of its surface, new observations have been made by astronomers

　　(C) Similar to the great navigators who first sailed around the Earth, where they gathered information about its size and the curvature of its surface, astronomers have made new observations

　　(D) Like the great navigators who first sailed around the Earth gathering information about its size and the curvature of its surface, astronomers have made new observations

　　(E) Just as with the great navigators who first sailed around the Earth, gathering information about its size and curvature of the surface, astronomers have made new observations

　　(A) like连接比较对象不对等，navigators与observations。

　　(B) like连接比较对象不对等，navigators与observations;表目的用不定式优于for doing结构。

　　(C)用where引导定语从句改变了原句意思，原句并没有说明gather information是在Earth;similar to 放在句首永远错,应该用Like替换

　　我老人家都哑然失笑了，sailor不在地球上航行，难道在太空航行啊?这TM还用你所谓的“原句”来说?此选项的关键问题还是逻辑关系，即两个动作是伴随进行，随着航行的进行，收集信息的工作也在同步进行中。至于某机构热爱的“永远”二字，更经不起推敲，以上like与similar to的区别是意思上的区别，并无永远错永远对之不能翻身之说。

　　(D) 正确，navigators与astronomers对比。

　　(E) just as with搭配错误。

　　35. (26308-!-item-!-188;#058&003128)

　　Unlike the steam locomotive, which required an hour or two of firing up bore it was possible to move under its own power, nearly full power could be summoned almost instantly from the cold engine of a diesel locomotive.

　　(A) it was possible to move under its own power, nearly full power could be summoned almost instantly from the cold engine of a diesel locomotive

　　(B) it was possible to move under its own power, the diesel locomotive's engine, when cold, could produce nearly full power almost instantly

　　(C) it could move under its own power, the diesel locomotive could summon nearly full power from a cold engine almost instantly

　　(D) moving under its own power, the cold engine of the diesel locomotive could produce nearly full power almost instantly

　　(E) moving under its own power, almost instantly a diesel locomotive could summon nearly full power from a cold engine

　　(A) 形式主语it与its指代对象不一致;unlike连接比较对象不对等，locomotive与power。

　　(B) 形式主语it与its指代对象不一致;unlike连接比较对象不对等，locomotive与engine。

　　(C) 正确，steam locomotive与diesel locomotive对比，it指代前者。

　　(D) unlike连接比较对象不对等，locomotive与engine。

　　(E) bore moving…没有表达出原句所要表达的“能够，可能”的意思;almost instantly位置改变，引起修饰歧义。

　　这个可能不可能不是“原句”规定的，而是句内的对应关系规定的。因为后半句使用了could，而本句又是一个比较关系，所以前半截也要使用could与其对应。请记住，最靠谱的线索一定来自句内的呼应关系!

　　距2015年10月GMAT考试还有不到十天的时间，语法成功复习可最大程度的提高自己的分数，预祝大家取得圆满成功!