1.
(2024七下·重庆市期末)
阅读下列材料,从A、B、C、D四个选项中选出最佳答案。
①Do you know antibiotics (抗生素)?You may not know it,but it's very important in our lives. People can live long because of it.
②In the past,people often died from (死于) bacterial infections (细菌感染),bacterial infections made many people die. A small cut on the leg could make the person lose his life. Luckily,in 1928 people discovered penicillin (青霉素)
③From then on,people can live longer. In 1850,people lived an average age of 38,people lived to an average age of
58. Then people have more time to spend on science,art
④Computers,phones and AI are important, ▲. If there are no antibiotics,we can't enjoy our lives.
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(1)
When did people discover penicillin? ____
A . In 1928.
B . In 1850.
C . In 1950.
D . In 1958.
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(2)
Which of the following is TRUE according to the passage?
A . People lived an average age of 38 in 1950.
B . People often die from bacterial infections today.
C . Antibiotic stops many infections from killing people.
D . We can't enjoy our lives if there are no computers.
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(3)
Which sentence can be put in the ▲?
A . because they help people to live a happy life
B . but antibiotics means (意味着) more to people
C . for example,AI robots can help us do housework
D . so people need to spend more time learning science
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(4)
What's the structure(结构) of this passage?
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