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三、阅读理解。
If you fly across several time zones, you may have jet lag(时差反应). You arrive in a new time zone, but your body is still living on the time in the old one. You may be hungry for dinner at midnight, and you may want to sleep all day.
People have jet lag because all living things have a biological clock(生物钟). For example, plants begin to work when the sun rises. When winter comes, birds fly to warm places. Some insects like bees also seem to set their alarm clocks to look for food.
Some scientists did an experiment(实验) with bees in Paris. They put out sugar water at 4:00 p.m. every day, and the bees came to drink the water at exactly the right time. Then the scientists put the bees in a dark room. The bees still came out at the same time. Later the scientists took the bees to New York. The bees came for the food at the right time again when it was only 10:00 a.m. in New York. Their bodies were still on Paris time.
People have a biological clock too. Our biological clock tells us when to sleep and eat, but we can change it little by little. For example, if you travel to another country, going to bed early for a few days helps your body learn the new time. Then you won’t feel tired or hungry at the wrong times. Scientists also found something interesting—sunlight can help your biological clock! But how?
1. What is the passage about?
A. Biological clocks.
B. Time zones.
C. An experiment.
2. How many examples of the biological clock does the writer show in paragraph 2?
A. Two.
B. Three.
C. Four.
3. When did the bees come out for food in New York?
A. At 10:00 a.m. (Paris time).
B. At 4:00 p.m. (Paris time).
C. At 4:00 p.m. (New York time).
4. 🔵新考法·写作目的 What is the purpose of showing the experiment with bees?
A. To explain how bees set their alarm clocks.
B. To tell us that bees look for sugar water to live.
C. To prove that living things have a biological clock.
5. What may the writer talk about next?
A. How jet lag affects people and animals.
B. When and where plants begin to work.
C. How sunlight affects people’s biological clocks.
If you fly across several time zones, you may have jet lag(时差反应). You arrive in a new time zone, but your body is still living on the time in the old one. You may be hungry for dinner at midnight, and you may want to sleep all day.
People have jet lag because all living things have a biological clock(生物钟). For example, plants begin to work when the sun rises. When winter comes, birds fly to warm places. Some insects like bees also seem to set their alarm clocks to look for food.
Some scientists did an experiment(实验) with bees in Paris. They put out sugar water at 4:00 p.m. every day, and the bees came to drink the water at exactly the right time. Then the scientists put the bees in a dark room. The bees still came out at the same time. Later the scientists took the bees to New York. The bees came for the food at the right time again when it was only 10:00 a.m. in New York. Their bodies were still on Paris time.
People have a biological clock too. Our biological clock tells us when to sleep and eat, but we can change it little by little. For example, if you travel to another country, going to bed early for a few days helps your body learn the new time. Then you won’t feel tired or hungry at the wrong times. Scientists also found something interesting—sunlight can help your biological clock! But how?
1. What is the passage about?
A. Biological clocks.
B. Time zones.
C. An experiment.
2. How many examples of the biological clock does the writer show in paragraph 2?
A. Two.
B. Three.
C. Four.
3. When did the bees come out for food in New York?
A. At 10:00 a.m. (Paris time).
B. At 4:00 p.m. (Paris time).
C. At 4:00 p.m. (New York time).
4. 🔵新考法·写作目的 What is the purpose of showing the experiment with bees?
A. To explain how bees set their alarm clocks.
B. To tell us that bees look for sugar water to live.
C. To prove that living things have a biological clock.
5. What may the writer talk about next?
A. How jet lag affects people and animals.
B. When and where plants begin to work.
C. How sunlight affects people’s biological clocks.
答案
1.A 2.B 3.B 4.C 5.C
解析
【分析】首先通读全文，明确文章围绕“生物钟”展开，通过时差反应引入核心概念，列举动植物例子、蜜蜂实验佐证生物有生物钟，最后提及阳光对生物钟的作用。逐题分析：1题为主旨题，需把握文章核心；2题需定位第二段的例子数量；3题需精准对应蜜蜂实验的时间逻辑；4题需分析实验的论证目的；5题需根据末段内容推断下文。
【解析】1. 主旨大意题：文章从时差反应切入，介绍所有生物存在生物钟，列举植物、候鸟、蜜蜂的实例及蜜蜂实验，核心围绕“生物钟”展开，故选A。2. 细节理解题：第二段明确列举了植物、候鸟、蜜蜂3个体现生物钟的例子，故选B。3. 细节理解题：根据第三段，巴黎时间每天下午4点放置糖水，蜜蜂按巴黎时间觅食，被带到纽约后仍遵循巴黎时间，即对应巴黎时间下午4点，故选B。4. 推理判断题：第二段提出“所有生物有生物钟”的观点，蜜蜂实验是为了验证该观点，故选C。5. 推理判断题：末段提到“阳光能帮助生物钟”，故下文会围绕阳光如何影响生物钟展开，故选C。
【答案】1.A 2.B 3.B 4.C 5.C
【知识点】英语阅读理解主旨题、细节题、推理题
【点评】本题是关于生物钟的英语阅读理解题，考查学生对文章主旨、细节及逻辑推理的能力，需准确抓取关键信息，难度适中。
【难度系数】0.5
【解析】1. 主旨大意题：文章从时差反应切入，介绍所有生物存在生物钟，列举植物、候鸟、蜜蜂的实例及蜜蜂实验，核心围绕“生物钟”展开，故选A。2. 细节理解题：第二段明确列举了植物、候鸟、蜜蜂3个体现生物钟的例子，故选B。3. 细节理解题：根据第三段，巴黎时间每天下午4点放置糖水，蜜蜂按巴黎时间觅食，被带到纽约后仍遵循巴黎时间，即对应巴黎时间下午4点，故选B。4. 推理判断题：第二段提出“所有生物有生物钟”的观点，蜜蜂实验是为了验证该观点，故选C。5. 推理判断题：末段提到“阳光能帮助生物钟”，故下文会围绕阳光如何影响生物钟展开，故选C。
【答案】1.A 2.B 3.B 4.C 5.C
【知识点】英语阅读理解主旨题、细节题、推理题
【点评】本题是关于生物钟的英语阅读理解题，考查学生对文章主旨、细节及逻辑推理的能力，需准确抓取关键信息，难度适中。
【难度系数】0.5
