Question

There is very simple way of measuring the height of a water-tower, which we cannot measure by climbing.

Suppose, for example, that we wish to find out the height of the water-tower, AB, in a factory. We first of all go to where the water-tower is standing and measure a distance of, say, 25 feet from it. Then we take a stick, and stand it in the ground at the spot we have just marked.

Let us suppose the stick we are using is 4 feet in height. We now walk farther away from the water –tower in the same straight line as when we measured off the distance of 25 feet. We go from the water-tower until we come to point E, where with our head on the ground, we see the top of the stick and the top of the water-tower in the same height line---that is, the top of the stick just covers the highest part of the water-tower. Every schoolboy can work out the height of the water-tower now.

Suppose that the line CE is five feet. We know that the stick is 4 feet high and the distance BE is 30 feet. Thus, 5 is to 4 as 30 is to AB.

1.If we want to know how high a tall tree is,_______.

A. we have to climb up the tree

B. we have no way out

C. we must cut down the tree

D we needn’t climb up the tree

2. According to the passage, which of the following is correct?

 

 

3.It is clear from this that the problem can be settled by _________.

A. a child

B. the boy who has little schooling

C. everyone

D. a girl at middle school

4.To measure a water-tower in this way, _________.

A. no tool is needed

B. Besides a stick, tape-measure (卷尺) or at least a ruler is necessary.

C. we have to use nothing but a stick

D. we have to prepare a set of expensive tools

 

Answer 1

【答案】

 

1.D

2.A

3.D

4.C

【解析】

試題分析：文章交給讀者一個簡便的測量水塔的方法，不需要爬高，只需要一根樹棍和一些中學的知識。

1.細節(jié)題：從第一段的句子：There is very simple way of measuring the height of a water-tower, which we cannot measure by climbing.可知要想測量大樹的高度，不必要爬樹，選D

2.細節(jié)題：從二三兩段的描述，可知A是正確的。

3.細節(jié)題：從第三段的句子：Every schoolboy can work out the height of the water-tower now.可知學校的學生可以算出這個問題。選D

4.細節(jié)題：從第二段的句子：Then we take a stick, and stand it in the ground at the spot we have just marked.可知用這種測量方法只需要一個樹棍。選C。

考點：考查日常生活類短文

點評：做好閱讀理解需要考生有較綜合的知識和能力。上述短文內容較長，且描述較為復雜、抽象，若僅靠想象作答后面的題目勢必非常困難，若將文章內容加以分析整理，使抽象的文字具體化，答案就一目了然了。