新GRE阅读练习题5

　　Questions 1-4

　　Along a street that is currently without trees, seven trees are to be planted in the pattern

　　1 3 5 7

　　2 4 6

　　Where each number designates the position of a tree. No more than two kinds of trees can be planted. If maples are used, no maple can be planted adjacent to or immedi-ately diagonally opposite another maple. Two trees are adjacent to each other if the numbers of their positions differ by two, and immediately diagonally opposite if their numbers differ by one. The following trees, of three kinds, are available for planting:

　　Three red oaks

　　Four maples

　　Four sycamores

　　1.Which of the following can be the trees planted along the side of the street that has four trees, in order of their positions beginning with position 1?

　　(A)Maple, sycamore, maple, sycamore

　　(B)Maple, sycamore, red oak, maple

　　(C)Red oak, maple, maple, red oak

　　(D)Sycamore, sycamore, maple, maple

　　(E)Sycamore, sycamore, red oak, red oak

　　2.If red oaks are used, then which of the following must be true?

　　(A)The other trees used are all maples.

　　(B)The other trees used are all sycamores.

　　(C)The red oaks are in positions 1, 2, and 3.

　　(D)The red oaks are in positions 3, 4, and 5.

　　(E)The red oaks are in positions 4, 5, and 6.

　　3.Among the trees left over after the planting is done there must be

　　(A)at least one maple

　　(B)at least one red oak

　　(C)at least one sycamore

　　(D)at most one maple

　　(E)at most one red oak

　　4.If maples are planted, the side of the street that has four trees must have

　　(A)red oaks in positions 1 and 7

　　(B)red oaks in positions 3 and 5

　　(C)sycamores in positions 1 and 3

　　(D)sycamores in positions 1 and 7

　　(E)sycamores in positions 3 and 5

　　答案：EB AE

 

新GRE阅读练习题的延伸阅读——GRE阅读技巧详解

 

　　GRE阅读技巧：宏观中的“必读”与“不读”

　　所谓宏观，即使明确文章结构。再清楚一点说，即使我们要知道主题句的所在位置以及每段大意。

　　让我们今天来了解一下什么是主题句，ETS的阅读文章中主题句通常会以什么形式出现。和中国考生自己写作文不一样的是，美国人的阅读文章中从来都不出现“I think that， in my opinion， as far as I am considered”此类语言做主题句。通常来说美国人的主题句有两种形式：

　　主题句两种形式：

　　1. 判断句(含情态动词，系动词，正负褒贬词的句子)；

　　2. 概括文章将来结构。

掌握好了主题句判断方法，很多文章学生便可以很快把握文章的结构框架，帮助后面文章的理解。