登录
D
For most human history, the stars shone brightly in a dark night sky. But today, with many man-made lights, it is difficult for us to watch some wonderful sights: stars, planets and even galaxies (星系). This is in fact a kind of light pollution.
According to scientific research, you can see about 2,500 stars without using any special tools. But because of light pollution, you can only see 200 to 300 stars from the countryside, and no more than 10 stars from a city. In most big cities, people cannot see stars like they did in their childhood.
The main reasons of more brightness of the night sky are industrialization(工业化) and the growing use of outdoor LEDs, which are much brighter than traditional lighting. It brings a lot of bad results. Scientists find it hard to see the stars and planets. And too much light might make birds lose their ways at night. Some insects (昆虫) often fly towards light and may knock into buildings and lose lives. Sometimes light pollution makes us have sleeping problems.
Small actions, big changes. To stop things from going worse, we should use the right amount (数量) of light, in the right place and at the right time. Using yellow-colored light instead of white light, shining lights down at the ground instead of up into the sky are also helpful. We'd better remind people around us to help cut down light pollution as well.
Hopefully, in the near future, humans can enjoy the beauty of the night sky again and all wildlife will live a peaceful life!
(
A. By telling stories.
B. By listing numbers.
C. By asking questions.
D. By giving examples.
(
①Scientists see stars clearly.
②Birds get lost easily.
③Many insects may die.
④Some people feel sick.
A. ①②④
B. ①②③
C. ①③④
D. ②③④
(
A. Light pollution mainly comes from the nature.
B. The brighter the sky, the fewer stars you can see.
C. Traditional lighting is brighter than LED lighting.
D. White lights are much better for the environment.
(
A. If you want to see stars, we must make changes.
B. It's of great importance to cut down light pollution.
C. We can do simple things to cut down light pollution.
D. There are a lot of ways of cutting down light pollution.
For most human history, the stars shone brightly in a dark night sky. But today, with many man-made lights, it is difficult for us to watch some wonderful sights: stars, planets and even galaxies (星系). This is in fact a kind of light pollution.
According to scientific research, you can see about 2,500 stars without using any special tools. But because of light pollution, you can only see 200 to 300 stars from the countryside, and no more than 10 stars from a city. In most big cities, people cannot see stars like they did in their childhood.
The main reasons of more brightness of the night sky are industrialization(工业化) and the growing use of outdoor LEDs, which are much brighter than traditional lighting. It brings a lot of bad results. Scientists find it hard to see the stars and planets. And too much light might make birds lose their ways at night. Some insects (昆虫) often fly towards light and may knock into buildings and lose lives. Sometimes light pollution makes us have sleeping problems.
Small actions, big changes. To stop things from going worse, we should use the right amount (数量) of light, in the right place and at the right time. Using yellow-colored light instead of white light, shining lights down at the ground instead of up into the sky are also helpful. We'd better remind people around us to help cut down light pollution as well.
Hopefully, in the near future, humans can enjoy the beauty of the night sky again and all wildlife will live a peaceful life!
(
B
)27. How does the writer support his idea in Paragraph 2?A. By telling stories.
B. By listing numbers.
C. By asking questions.
D. By giving examples.
(
D
)28. According to Paragraph 3, which are the results of light pollution?①Scientists see stars clearly.
②Birds get lost easily.
③Many insects may die.
④Some people feel sick.
A. ①②④
B. ①②③
C. ①③④
D. ②③④
(
B
)29. Which of the following is TRUE according to the text?A. Light pollution mainly comes from the nature.
B. The brighter the sky, the fewer stars you can see.
C. Traditional lighting is brighter than LED lighting.
D. White lights are much better for the environment.
(
C
)30. What does the underlined sentence in Paragraph 4 mean?A. If you want to see stars, we must make changes.
B. It's of great importance to cut down light pollution.
C. We can do simple things to cut down light pollution.
D. There are a lot of ways of cutting down light pollution.
答案
27.B 28.D 29.B 30.C
解析
【分析】
本题为英语阅读理解题，需结合各段落内容逐一分析题目：27题考查第二段的论证方法，需定位段落表述判断；28题考查第三段光污染的结果，需提取原文对应信息；29题需逐一核对选项与原文的一致性；30题需理解第四段划线句的含义并匹配选项。
【解析】
27题：第二段使用了“2500 stars”“200 to 300 stars”“10 stars”等具体数字，通过列数字的方式支撑观点，故选B。
28题：第三段提到光污染的结果：“make birds lose their ways”（②正确）、“insects...may knock into buildings and lose lives”（③正确）、“make us have sleeping problems”（④正确）；①“科学家看清星星”与原文“hard to see the stars”矛盾，故排除①，选D。
29题：A选项“光污染来自自然”与原文“man-made lights”矛盾；B选项“天空越亮看到星星越少”，原文对比无工具可见2500颗、乡村200-300颗、城市不到10颗，符合；C选项“LED比传统照明暗”与原文“LEDs are much brighter than traditional lighting”矛盾；D选项“白光更好”与原文“Using yellow-colored light instead of white light”矛盾，故选B。
30题：划线句“Small actions, big changes”意为“小行动，大改变”，强调通过简单行动减少光污染，对应C选项；A选项“必须改变”过于绝对，B选项强调重要性而非句子含义，D选项侧重方法数量，均不符合，故选C。
【答案】
27.B 28.D 29.B 30.C
【知识点】
英语阅读理解、细节理解、推理判断
【点评】
本文围绕光污染展开，题目设置考查学生对原文信息的定位、分析与推理能力，需学生精准匹配原文内容与选项，整体难度适中，适合初中阶段学生巩固阅读技巧。
【难度系数】
0.6
本题为英语阅读理解题，需结合各段落内容逐一分析题目：27题考查第二段的论证方法，需定位段落表述判断；28题考查第三段光污染的结果，需提取原文对应信息；29题需逐一核对选项与原文的一致性；30题需理解第四段划线句的含义并匹配选项。
【解析】
27题：第二段使用了“2500 stars”“200 to 300 stars”“10 stars”等具体数字，通过列数字的方式支撑观点，故选B。
28题：第三段提到光污染的结果：“make birds lose their ways”（②正确）、“insects...may knock into buildings and lose lives”（③正确）、“make us have sleeping problems”（④正确）；①“科学家看清星星”与原文“hard to see the stars”矛盾，故排除①，选D。
29题：A选项“光污染来自自然”与原文“man-made lights”矛盾；B选项“天空越亮看到星星越少”，原文对比无工具可见2500颗、乡村200-300颗、城市不到10颗，符合；C选项“LED比传统照明暗”与原文“LEDs are much brighter than traditional lighting”矛盾；D选项“白光更好”与原文“Using yellow-colored light instead of white light”矛盾，故选B。
30题：划线句“Small actions, big changes”意为“小行动，大改变”，强调通过简单行动减少光污染，对应C选项；A选项“必须改变”过于绝对，B选项强调重要性而非句子含义，D选项侧重方法数量，均不符合，故选C。
【答案】
27.B 28.D 29.B 30.C
【知识点】
英语阅读理解、细节理解、推理判断
【点评】
本文围绕光污染展开，题目设置考查学生对原文信息的定位、分析与推理能力，需学生精准匹配原文内容与选项，整体难度适中，适合初中阶段学生巩固阅读技巧。
【难度系数】
0.6
