内容正文：
高二英语选择性必修一Unit1课时同步练习
（assessing your progress & video time)
一、单词拼写
1．The scientist found a strange ________(物质)in the old medicine bottle.
2．I would rather ________(坚持)on my own plan than follow theirs.
3．It was ________(显而易见的)that the new medicine worked better than the old one.
4．The book opens with an ________(n. 承认；感谢)of all the researchers who helped.
5．A fair ________(评价)of a scientist’s work often takes many years.
6．The young ________(分析者)spent the whole night checking the data.
7．The patient received a new ________(治疗)at the hospital last week.
8．A good night’s sleep is the best ________(疗法；补救办法)for tiredness.
9．This kind of ________(药草)is often used in traditional Chinese medicine.
10．A fever is a common ________(症状)of the flu.
二、语法填空
11．The young researcher made a firm (commit) to cancer research.
12．Tu Youyou is widely (acknowledge) as a pioneer in the field of medicine.
13．The lab assistant spent the whole morning (analyse) the data from the tests.
14．After hundreds of failures, the team finally (obtain) a pure extract.
15．Careful and (science) methods are needed in every experiment.
16．It took the researchers years to draw a (conclude) from all the data.
17．Before the new project starts, the committee will make a careful (evaluate) of it.
18．There is a clear (distinct) between the two words in meaning.
19．The scientist made an important (discover) in the study of plants.
20．Out of a (passion) love for chemistry, she spent every free hour in the lab.
三、完成句子
21．去年他们在医学领域取得了巨大进展。
Last year they ________ ________ ________ ________ medical science.
22．你能为你的结论给出理由吗？
Can you ________ ________ ________ your conclusion?
23．出于强烈的热情，他把毕生精力投入到了科学研究之中。
________ ________ ________ ________ ________, he devoted his whole life to scientific research.
24．新药在上市前必须先在动物身上接受试验。
The new medicine must ________ ________ ________ animals before it is sold.
25．许多人认为不应该在动物身上做药物试验。
Many people think we should not ________ ________ animals.
四、阅读理解
In 1928, Alexander Fleming, a British scientist, returned to his laboratory in London after a holiday. He found that some plates of bacteria had been left unwashed, and one of them was covered with a strange blue-green mould.
Around the mould, there was a clear circle where the bacteria could not grow. Fleming realised that the mould must be producing something that killed the bacteria, and he later named it penicillin.
However, turning the discovery into a real medicine was not easy. Fleming did not have the machines or money needed to produce it in large amounts, so for years few people paid attention to his work.
In the early 1940s, two other scientists developed a method to purify penicillin. During the Second World War, it saved the lives of thousands of wounded soldiers. In 1945, Fleming and the two scientists shared the Nobel Prize in Physiology or Medicine.
Fleming’s story reminds us that chance favours the prepared mind. He stayed curious about small facts that others might ignore, and his careful observation changed the history of modern medicine.
26．What did Fleming find when he returned to his laboratory?
A．A new kind of bacteria.
B．A mould that seemed to kill bacteria.
C．A bottle of ready-made penicillin.
D．A machine for washing plates.
27．Why was it difficult to turn penicillin into a real medicine at first?
A．Fleming was not interested in his own discovery.
B．The mould was too rare to find in nature.
C．Fleming lacked the machines and money to produce it in large amounts.
D．Doctors refused to use any new medicine at that time.
28．Who developed a method to purify penicillin?
A．Two other scientists. B．Fleming himself.
C．Some wounded soldiers. D．Some doctors in London.
29．What does the writer want to tell us in the last paragraph?
A．Scientists should take holidays more often.
B．Luck alone is enough for great discoveries.
C．Small facts are not worth scientists’ attention.
D．Careful observation helps turn chance into discovery.
30．What can be the best title for the text?
A．The Discovery of Penicillin
B．How to Win the Nobel Prize
C．The Life of Wounded Soldiers
D．Bacteria in the Laboratory
五、阅读七选五
Science is not just a list of facts to remember; it is a way of finding answers. 31 In fact, most scientific work follows several clear steps.
First, scientists notice a problem and ask a question. 32 Without a clear question, even the best scientist would not know where to begin.
Next, they collect information and form a possible answer, which is called a hypothesis. Then they design experiments to test it. 33 If the results do not support it, they change their idea and try again.
After many tests, the results are shared with other scientists, who check them carefully. 34 This is why science grows stronger step by step instead of standing still.
35 So next time you study science, do not only memorise facts — try to think like a scientist.
A．A good question often comes from careful observation.
B．Some people think science is too difficult to learn.
C．Experiments may prove the idea wrong, but that is still progress.
D．However, it is a mistake to think that discoveries happen by magic.
E．Their honest checks help remove mistakes and make the results more reliable.
F．Scientists never share their results with others.
G．Every great discovery began with a question worth asking.
参考答案
1．substance 2．insist 3．apparent 4．acknowledgement 5．evaluation
6．analyst 7．treatment 8．remedy 9．herb 10．symptom
11．commitment 12．acknowledged 13．analysing 14．obtained 15．scientific
16．conclusion 17．evaluation 18．distinction 19．discovery 20．passionate
21． made great advancement in
22． give reasons for
23． Out of a strong passion
24． be tested on
25． test on
26．B 27．C 28．A 29．D 30．A
26．细节理解题。根据第一段“one of them was covered with a strange blue-green mould.(其中一块培养皿上覆盖着一层奇怪的蓝绿色霉菌)”可知，弗莱明假期回来后发现一块培养皿长了霉菌，而霉菌周围的细菌无法生长。故选B。
27．细节理解题。根据第三段“Fleming did not have the machines or money needed to produce it in large amounts.(弗莱明没有大批量生产青霉素所需的机器和资金)”可知，起初难以把青霉素变成真正的药物是因为缺乏设备和资金。故选C。
28．细节理解题。根据第四段“In the early 1940s, two other scientists developed a method to purify penicillin.(20 世纪 40 年代初，另外两位科学家研究出了提纯青霉素的方法)”可知，提纯青霉素的方法是另外两位科学家研究出来的。故选A。
29．推理判断题。根据最后一段“He stayed curious about small facts that others might ignore.(他对别人可能忽略的小细节保持好奇)”可知，作者的意图是告诉读者，细致的观察和好奇心能把偶然变成伟大的发现。故选D。
30．主旨大意题。根据最后一段“chance favours the prepared mind.(机遇偏爱有准备的头脑)”并结合全文可知，文章主要讲述弗莱明发现青霉素的经过以及这一发现的意义。故选A。
31．D 32．A 33．C 34．E 35．G
31．上文“Science is not just a list of facts to remember; it is a way of finding answers.(科学不仅仅是要记住的一系列事实，它是一种寻找答案的方法)”说明科学的本质，D选项“However, it is a mistake to think that discoveries happen by magic.(然而，认为重大发现是靠魔力产生的想法是错误的)”承上启下，并引出下文“大多数科学工作都遵循几个清晰的步骤”。故选D。
32．上文“First, scientists notice a problem and ask a question.(首先，科学家注意到问题并提出问题)”讲的是提出问题，A选项“A good question often comes from careful observation.(一个好问题往往来自细致的观察)”承接上文，并与下文“没有明确的问题，就连最好的科学家也不知从何入手”相呼应。故选A。
33．上文“Then they design experiments to test it.(然后他们设计实验来检验它)”讲的是用实验检验假设，C选项“Experiments may prove the idea wrong, but that is still progress.(实验也许会证明想法是错的，但那仍然是进步)”承接上文，并与下文“如果结果不支持假设，他们就改变想法再试一次”相呼应。故选C。
34．上文“the results are shared with other scientists, who check them carefully.(结果会与其他科学家分享，由他们仔细核查)”讲的是同行核查，E选项“Their honest checks help remove mistakes and make the results more reliable.(他们诚实的核查有助于消除错误，使结果更加可靠)”承接上文，并解释了科学为何能一步步变得更强。故选E。
35．下文“So next time you study science, do not only memorise facts — try to think like a scientist.(所以下次学习科学时，不要只记住事实——要试着像科学家一样思考)”是全文的总结与建议，G选项“Every great discovery began with a question worth asking.(每一项伟大发现都始于一个值得追问的问题)”与之呼应，收束全文。故选G。
第1页
第1页
学科网（北京）股份有限公司
$