任务一 阅读理解
阅读下面的短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项。
The James Webb Space Telescope( JWST), launched in 2021, is the most powerful space telescope ever built. It orbits the sun about 1.5 million kilometres from earth, far beyond the moon's orbit. Unlike the Hubble Space Telescope, JWST observes in infrared light, which lets it see through dust clouds and capture(获得) images of the earliest galaxies in the universe.
One of JWST's greatest achievements is detecting light from galaxies that formed just 200 million years after the Big Bang. These galaxies are much smaller and dimmer than any previously seen. By studying them, scientists hope to understand how the first stars and galaxies formed and evolved.
JWST also studies exoplanets—planets outside our solar system. It can analyse the atmospheres of these planets to look for signs of water, oxygen, and other molecules that might support life. For example, it has found carbon dioxide in the atmosphere of a gas giant exoplanet, a key step in understanding alien worlds.
The telescope's mission is expected to last at least 10 years. It continues to rewrite our understanding of the universe, showing us sights we have never imagined before.
() 1. What is special about JWST compared with Hubble?
A.It orbits the moon.
B.It uses infrared light.
C.It was launched earlier.
D.It is smaller in size.
初中英语听读空间 加强版
九年级
() 2. What does the underlined word "exoplanets" in paragraph 3 mean?
A. Planets in our solar system.
B. Planets orbiting other stars.
C. Planets with no atmosphere.
D. Planets that support life.
() 3. According to the passage, which of the following is the CORRECT order of JWST's related information?
① JWST can study exoplanets and analyse their atmospheres.
② JWST was launched in 2021 and orbits the sun.
③ JWST has detected light from very early galaxies in the universe.
④ JWST's mission will last at least 10 years.
A. ①→②→③→④
B. ②→①→③→④
C. ③→②→①→④
D. ②→③→①→④
() 4. What is the passage mainly about?
A. The history of space telescopes.
B. The development of space travel.
C. The achievements and mission of JWST.
D. The search for life on other planets.
阅读下面的短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项。
The James Webb Space Telescope( JWST), launched in 2021, is the most powerful space telescope ever built. It orbits the sun about 1.5 million kilometres from earth, far beyond the moon's orbit. Unlike the Hubble Space Telescope, JWST observes in infrared light, which lets it see through dust clouds and capture(获得) images of the earliest galaxies in the universe.
One of JWST's greatest achievements is detecting light from galaxies that formed just 200 million years after the Big Bang. These galaxies are much smaller and dimmer than any previously seen. By studying them, scientists hope to understand how the first stars and galaxies formed and evolved.
JWST also studies exoplanets—planets outside our solar system. It can analyse the atmospheres of these planets to look for signs of water, oxygen, and other molecules that might support life. For example, it has found carbon dioxide in the atmosphere of a gas giant exoplanet, a key step in understanding alien worlds.
The telescope's mission is expected to last at least 10 years. It continues to rewrite our understanding of the universe, showing us sights we have never imagined before.
() 1. What is special about JWST compared with Hubble?
A.It orbits the moon.
B.It uses infrared light.
C.It was launched earlier.
D.It is smaller in size.
初中英语听读空间 加强版
九年级
() 2. What does the underlined word "exoplanets" in paragraph 3 mean?
A. Planets in our solar system.
B. Planets orbiting other stars.
C. Planets with no atmosphere.
D. Planets that support life.
() 3. According to the passage, which of the following is the CORRECT order of JWST's related information?
① JWST can study exoplanets and analyse their atmospheres.
② JWST was launched in 2021 and orbits the sun.
③ JWST has detected light from very early galaxies in the universe.
④ JWST's mission will last at least 10 years.
A. ①→②→③→④
B. ②→①→③→④
C. ③→②→①→④
D. ②→③→①→④
() 4. What is the passage mainly about?
A. The history of space telescopes.
B. The development of space travel.
C. The achievements and mission of JWST.
D. The search for life on other planets.
答案：1. B
2. B
3. D
4. C
2. B
3. D
4. C
解析：
【解析】
1. 细节理解题：根据第一段中"Unlike the Hubble Space Telescope, JWST observes in infrared light"可知，和哈勃望远镜相比，詹姆斯·韦伯太空望远镜的特殊之处是使用红外光观测，对应选项B。
2. 词义猜测题：根据第三段破折号后的解释"planets outside our solar system"，即太阳系外的行星，也就是围绕其他恒星运行的行星，对应选项A描述错误，B选项“围绕其他恒星运行的行星”符合词义。
3. 细节排序题：梳理文章内容顺序：第一段首先介绍JWST于2021年发射、绕太阳运行（对应②）；第二段介绍它的成就之一是探测到宇宙中早期星系发出的光（对应③）；第三段介绍它可以研究系外行星并分析其大气层（对应①）；最后一段说明它的任务至少持续10年（对应④），正确顺序为②→③→①→④，对应选项D。
4. 主旨大意题：文章分别介绍了JWST的基本情况、取得的相关成就以及它的任务规划，核心是介绍詹姆斯·韦伯太空望远镜的成就与任务，对应选项C。
【答案】
1. B
2. B
3. D
4. C
【知识点】
英语阅读理解
词义猜测
主旨大意
【点评】
这是一篇介绍天文科技的说明文，考点覆盖细节查找、词义猜测、行文顺序梳理和主旨归纳，难度适中，既考查学生快速定位文本信息的能力，也要求学生结合上下文推断生词含义、整体把握文章核心内容，符合九年级英语阅读的能力考查要求。
【难度系数】
0.7
1. 细节理解题：根据第一段中"Unlike the Hubble Space Telescope, JWST observes in infrared light"可知，和哈勃望远镜相比，詹姆斯·韦伯太空望远镜的特殊之处是使用红外光观测，对应选项B。
2. 词义猜测题：根据第三段破折号后的解释"planets outside our solar system"，即太阳系外的行星，也就是围绕其他恒星运行的行星，对应选项A描述错误，B选项“围绕其他恒星运行的行星”符合词义。
3. 细节排序题：梳理文章内容顺序：第一段首先介绍JWST于2021年发射、绕太阳运行（对应②）；第二段介绍它的成就之一是探测到宇宙中早期星系发出的光（对应③）；第三段介绍它可以研究系外行星并分析其大气层（对应①）；最后一段说明它的任务至少持续10年（对应④），正确顺序为②→③→①→④，对应选项D。
4. 主旨大意题：文章分别介绍了JWST的基本情况、取得的相关成就以及它的任务规划，核心是介绍詹姆斯·韦伯太空望远镜的成就与任务，对应选项C。
【答案】
1. B
2. B
3. D
4. C
【知识点】
英语阅读理解
词义猜测
主旨大意
【点评】
这是一篇介绍天文科技的说明文，考点覆盖细节查找、词义猜测、行文顺序梳理和主旨归纳，难度适中，既考查学生快速定位文本信息的能力，也要求学生结合上下文推断生词含义、整体把握文章核心内容，符合九年级英语阅读的能力考查要求。
【难度系数】
0.7