《2025年学霸组合训练八年级英语下册人教版浙江专版》

题目：弗莱明发现青霉素 体裁：记叙文 难度：4星 建议用时：8分钟 正确率：/4
（2024·潍坊中考改编）Fleming saw many soldiers 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 laboratory for two weeks. When he came back, he noticed something puzzling. 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.
Unfortunately, Fleming’s boss thought he was wasting his time and it was impossible to kill bacteria at that time. Fleming did a few more experiments with penicillin, and he also wrote about it so other scientists could learn about it. However, because no one seemed interested in his discovery, 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, which survived later. But those which didn’t get it died. Florey declared, “It looks like a miracle!” By 1943, the final tests on humans were finished successfully and the world had its first antibiotic（抗生素）medicine.
（ ）1. Why did bacteria stop growing on one of the dishes?
A. The mould juice killed them.
B. Some old bread was on the dish.
C. There was something special in the lab.
D. The dish was on the bench for two weeks.
（ ）2. Fleming had to give up his study on penicillin because ______.
A. something else was worth（值得）doing B. doing experiments cost much money
C. no scientists showed an interest in it D. his boss didn’t believe his new discovery
（ ）3. What is Paragraph 4 mainly about?
A. The founding of penicillin.
B. The great work of Chain and Florey.
C. The tests on sick mice and humans.
D. The value（价值）of Fleming’s notes about penicillin.
（ ）4. Which might be the best title for the passage?
A. The life of Fleming
B. The story of Ernest Chain
C. The science of fighting infections
D. The birth of the world’s first antibiotic medicine

答案： ADBD