People have known since ancient times that aspirin（阿司匹林） reduces pain and lowers high body temperature. But that is not all the drug can do. In recent years, it has been used in other ways, too. Small amounts may help prevent a stroke or heart attack. One recent study showed that some people who took two aspirin pills a day had lower rates of colorectal cancer. And, some researchers say aspirin may help patients with colon cancer live longer. So, how did aspirin become so important? The story begins with a willow（柳樹）．
2, 000 years ago, the Greek doctor Hippocrates advised his patients to chew on the bark and leaves of the willow. The tree contains a chemical called salicin. In the 1800s, researchers discovered how to make salicylic acid from the chemical. In 1897, a chemist named Felix Hoffmann at Friedrich Bayer and Company in Germany created acetyl salicylic acid. Later, it became the active substance in a medicine that Bayer called aspirin. The "a" came from acetyl. The "spir" came from the spirea plant, which also produces salicin. And the "in" ? That is a common way to end medicine names.
In 1982, a British scientist shared the Nobel Prize in Medicine in part for discovering how aspirin works. Sir John Vane found that aspirin prevents the body from making the natural substances called prostaglandins. Prostaglandins have several effects on the body. Some cause pain and swelling（腫）． Prostaglandins also make the heart, kidneys(腎) and blood vessels work well. So there is a problem. Aspirin works against all prostaglandins, good and bad. It can also harm the inside of the stomach, and sometimes it can cause bleeding.
But a British study released in 2009 suggested that taking another drug with a small amount of aspirin may help reduce the risk of bleeding. If this proves true, it would help thousands of people who are seeking to prevent life-threatening conditions.
小題1: The writer wrote this passage to______.
A．tell us the harm of aspirin
B．help us know aspirin better
C．explain why aspirin is useful
D．prove that aspirin is a good medicine
小題2:What do we learn about aspirin from Paragraph 1?
A．It is not used until recent years.
B．Using it for a long time may lead to cancer.
C．It is very dangerous if it is used in the wrong way,
D．It has gained important new uses in recent years.
小題3:When was the acetyl salicylic acid created?
A．a(chǎn)bout 2,000 years ago.B．In the early 1800s.
C．In the late 1800sD．In recent years
小題4:What is waiting to be solved according to the last paragraph?
A．The bleeding caused by taking aspirin.
B．How to reduce the risk of getting colorectal cancer.
C．How to help patients with colon cancer live longer
D．The problem of low body temperature caused by taking aspirin

小題1:B
小題2:D
小題3:C
小題4:A

試題分析：這篇文章主要告訴我們阿司匹林的作用，阿司匹林為什么重要的原因，以及阿司匹林的藥理，讓我們更了解阿司匹林。
小題1:推理判斷題。這篇文章主要告訴我們阿司匹林的作用，阿司匹林為什么重要的原因，以及阿司匹林的藥理，讓我們更了解阿司匹林。故選B。
小題2:推理判斷題。根據(jù)But that is not all the drug can do. In recent years, it has been used in other ways, too.句意：但這并不是這個藥全部的作用。近年來，它也被用于其它方面。由此可知近年來已經(jīng)有了重要的新用途。故選D。
小題3:細節(jié)理解題。根據(jù)In 1897, a chemist named Felix Hoffmann at Friedrich Bayer and Company in Germany created acetyl salicylic acid.句意：1897年，德國Friedrich Bayer and Company的藥劑師Hippocrates制造出了acetyl salicylic acid。1897年就是19世紀后期。故選C。
小題4:細節(jié)理解題。It can also harm the inside of the stomach, and sometimes it can cause bleeding.But a British study released in 2009 suggested that taking another drug with a small amount of aspirin may help reduce the risk of bleeding.句意：阿司匹林傷害胃，有時有導(dǎo)致出血。但是2009年發(fā)布的英國學(xué)術(shù)研究表明吃另外一種藥加少量的阿司匹林可以有助于降低出血的風(fēng)險�？芍獞�(yīng)選A。
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