零五网 全部参考答案 随堂反馈 2026年综合素质随堂反馈九年级英语下册译林版无锡专版 第15页解析答案
四、阅读理解
Fleming saw many soldiers (士兵) die from infections (感染) in their wounds as he worked in a hospital during World War I. This made Fleming decide to find a way to help the body fight infections.
In September 1928, Fleming left some glass dishes on a bench in his lab for two weeks. When he came back, he noticed something amazing. Bacteria (细菌) were growing on all the glass dishes except one. On this dish mould (霉菌) had started to grow—the kind found on old bread. The mould seemed to be giving off something that stopped the bacteria from growing. Fleming called it "mould juice". He tried it on other bacteria, and it killed them too. Fleming became wild with joy and named it penicillin (青霉素).
Fleming did a few more experiments (实验) with penicillin, and he also wrote about it so other scientists could learn about it. However, no one seemed interested in his discovery. Fleming's boss thought he was wasting his time and it was impossible to kill bacteria. So he forgot about penicillin and started to work on other things.
In 1939, Ernest Chain, a scientist, and his boss, Howard Florey, were looking for medicines that could kill bacteria. They discovered Fleming's notes and decided to test penicillin. In 1940, they gave penicillin to some sick mice, who survived later. But those who didn't get it died. Florey shouted excitedly, "It looks like a wonder!" By 1943, the final tests on humans were finished successfully and the world had its first antibiotic (抗生素) medicine.

(
A
)1. Why did bacteria stop growing on one of the dishes?
A. Because the "mould juice" killed them.
B. Because some old bread was on the dish.
C. Because there was something special in the lab.
D. Because the dish was on the bench for two weeks.
(
D
)2. Fleming had to give up his study on penicillin because
his boss didn't believe his new discovery
.
A. something else was worth doing
B. doing experiments cost much money
C. it couldn't kill bacteria
D. his boss didn't believe his new discovery
(
B
)3. What is Paragraph 4 mainly about?
A. The discovery of penicillin.
B. The great work of Chain and Florey.
C. The tests on sick mice and humans.
D. Fleming's notes about penicillin.
(
D
)4. Which might be the best title for the text?
A. The Life of Fleming
B. The Story of Ernest Chain
C. The Science of Fighting Against Infections
D. The Birth of the World's First Antibiotic Medicine
Exercise 2 of Unit 2 of 9B Reading(Ⅱ)
答案:1—4 ADBD
解析:
翻译:
### 四、阅读理解
第一次世界大战期间,弗莱明在医院工作时,看到许多士兵因伤口感染而死亡。这使弗莱明决定找到一种方法来帮助身体抵抗感染。
1928年9月,弗莱明把一些玻璃培养皿放在实验室的长凳上,放置了两周。当他回来时,他注意到了令人惊奇的事情。除了一个培养皿外,所有的玻璃培养皿上都滋生了细菌。在这个培养皿上,霉菌开始生长——就是那种在旧面包上发现的霉菌。这种霉菌似乎释放出某种阻止细菌生长的物质。弗莱明称之为“霉菌汁”。他把它用在其他细菌上,它也杀死了那些细菌。弗莱明欣喜若狂,并将其命名为青霉素。
弗莱明用青霉素又做了一些实验,他还把这件事写了下来,这样其他科学家就能了解它。然而,似乎没有人对他的发现感兴趣。弗莱明的老板认为他在浪费时间,而且杀死细菌是不可能的。所以他忘记了青霉素,开始研究其他东西。
1939年,科学家欧内斯特·钱恩和他的老板霍华德·弗洛里正在寻找能杀死细菌的药物。他们发现了弗莱明的笔记,并决定测试青霉素。1940年,他们给一些生病的老鼠注射了青霉素,这些老鼠后来活了下来。但那些没有注射青霉素的老鼠死了。弗洛里兴奋地喊道:“这看起来像个奇迹!”到1943年,对人类的最终测试成功完成,世界上有了第一种抗生素药物。
( )1. 为什么其中一个培养皿上的细菌停止生长了?
A. 因为“霉菌汁”杀死了它们。
B. 因为培养皿上有一些旧面包。
C. 因为实验室里有特殊的东西。
D. 因为这个培养皿在长凳上放了两周。
( )2. 弗莱明不得不放弃对青霉素的研究,因为________。
A. 还有其他值得做的事情
B. 做实验花费很多钱
C. 它不能杀死细菌
D. 他的老板不相信他的新发现
( )3. 第四段主要讲了什么?
A. 青霉素的发现。
B. 钱恩和弗洛里的伟大工作。
C. 对生病的老鼠和人类的测试。
D. 弗莱明关于青霉素的笔记。
( )4. 这篇文章的最佳标题可能是什么?
A. 弗莱明的一生
B. 欧内斯特·钱恩的故事
C. 对抗感染的科学
D. 世界上第一种抗生素药物的诞生
九年级下册第二单元阅读(Ⅱ)练习2
上一页 下一页