课时梯级训练(4) UNIT 1 Section Ⅳ Writing（Word练习）-【优化指导】2023-2024学年新教材高中英语选择性必修第一册（人教版2019）

课时梯级训练(四) 　Section Ⅳ　Writing Ⅰ.阅读理解 (2022·阳泉高二期末)The next time you have cheese，remember the French scientist Louis Pasteur who discovered that bad milk，and many diseases are caused by bacteria(细菌). Louis Pasteur is known as the father of microbiology.In his lifetime，he not only proved that bacteria are the cause of diseases，but also discovered the process of vaccination(接种疫苗)，which has saved billions of lives. When Pasteur worked with chickens that were suffering from cholera during his experiments，he accidentally spread cholera to his chickens.Pasteur's chickens became mildly sick but did not die.This was strange as every chicken that came near cholera earlier had died.He realized soon that the cholera had become weak.By the time he tried again，the chickens he had cured earlier did not get cholera anymore.He realized that a weak cholera helped his chickens develop an antibody against it. Later，Pasteur went on to try this on cows，pigs and dogs.All his research helped him develop different vaccines.We now know that the process of vaccination introduces a weakened kind of bacteria into our body.Our body reacts by creating antibodies to fight the bacteria.Now，when our body comes across the same bacteria which are much stronger，it can fight them off. Louis Pasteur received numerous awards for the advancement of biology，chemistry，and medicine.He founded the Pasteur Institute to study diseases.It was the first university to teach microbiology and today there are 32 institutes across 29 countries.For every child vaccinated against a deadly disease，we have Louis Pasteur to thank. 1．What do we know about Louis Pasteur? A．His discoveries weren't used at his time. B．He was a professor at the Pasteur Institute. C．His discoveries brought many profits and awards to him. D．He discovered the connection between bacteria and diseases. 2．What can we learn from his experiment with chickens? A．Cholera was not a deadly disease then. B．Pasteur spread cholera to chickens on purpose. C．Al