钱穆先生在《中国历代政治得失》中说：“汉代从昭宣以下的历任宰相，几乎全是读书人……完
题型：单项选择题
问题：
钱穆先生在《中国历代政治得失》中说：“汉代从昭宣以下的历任宰相，几乎全是读书人……完全是因其是一读书知识分子而获入仕途。”出现这种现象的原因是（）
①官僚政治体制开始形成
②考试为主的选官制度实行
③儒学地位的明显提高
④文官为相便于皇帝限制相权
A.①②
B.③④
C.①③
D.②④
题型：单项选择题
阅读理解。
How many kinds of shapes (形状) can you name? If something is round, what do you call it? You call it
a circle. What can you see around you that looks like a circle?
Another shape is square. A square has four sides. Each side is the same length (长度). A square has four
corners called right angles (直角).
A triangle is also a shape. The prefix "tri" on the base word "angle" means "three". A triangle always has
three sides and three angles.
All the pages of your textbooks have four square corners, but the pages are not square. Can you tell why
not? It is because the sides of each page are longer than the ends. Shapes like this are rectangles. You can say
that they are rectangular shapes.
If you are given a piece of paper which is a rectangular shape, can you make the paper into a square? The
answer is "Yes", and it seems not so difficult. Now fold the square. What shape have you got? Do you think
it's very interesting?
1. You usually learn the knowledge discussed in this passage in _____ classes.
A. chemistry
B. math
C. history
2. Picture _____ is a rectangle.
A. 
B. 
C. 
3. Picture _____ shows the right marks of"side & end" according to the passage.
A. 
B. 
C. 
4. Fold a square in the way of the picture shown on the right, you may get a shape of _____.
A. square
B. rectangle
C. triangle
5. In this passage, we've learned about _____ kinds of shapes.
A. three
B. four
C. five