内容正文:
2026-2027学年仁爱版八年级上 Unit 6 Earth and Beyond
课时8 Self-assessment 部分课时练习
一、单词默写(根据音标或中文写出英文单词)
1. ________ /ˈpluːtəʊ/ n. 冥王星
2. ________ /friːz/ v.(使)冻结,结冰
3. ________ /ˈbiːɪŋ/ n. 生物;存在
4. ________ /dɪsˈkʌvə/ v. 发现
5. ________ /ˈspeɪsʃɪp/ n. 宇宙飞船
6. ________ /ˈsætəlaɪt/ n. 卫星
7. ________ /ˈævərɪdʒ/ adj. 平均的
8. ________ /teɪk/ v. 花费;拿
二、词组默写(根据中文写出英文词组)
1. 平均温度 __________________________
2. 离太阳的距离 __________________________
3. 人类 __________________________
4. 绕太阳运行 __________________________
5. 拍照 __________________________
6. 飞近 __________________________
三、根据要求完成句子(用所给中文提示补全英文句子,每空一词)
1. 冥王星绕太阳运行一周大约需要248个地球年。
It takes Pluto about 248 Earth years to ______ around the Sun.
2. 克莱德·汤博于1930年发现了冥王星。
Clyde Tombaugh ______ Pluto in 1930.
3. 冥王星与太阳的距离大约是地球的40倍。
Pluto is about 40 times ______ from the Sun than Earth.
4. 冥王星有五颗小卫星。
Pluto has five small ______.
5. 没有空气,人类无法在冥王星上生存。
Without air, human ______ can't live on Pluto.
四、连词成句(将所给单词连成完整正确的句子)
1. takes, Pluto, about, years, the Sun, to, Earth, go, 248, around,it
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2. discovered, Pluto, in, Clyde Tombaugh, 1930
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3. five, has, small, Pluto, satellites
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4. scientists, a, spaceship, close, to, Pluto, sent, to, fly
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5. on, live, planet, the, people, can't, without, air
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五、选词填空(从方框中选择适当的单词填入空白处,每词限用一次)
travels discovered farther satellites pictures freeze air beings
Pluto is a special planet. It (1) ______ around the Sun. It takes Pluto about 248 Earth years to go around the Sun. Clyde Tombaugh (2) ______ Pluto in 1930. Pluto is about 40 times (3) ______ from the Sun than Earth. It has five small (4) ______. Scientists sent a spaceship to fly close to Pluto and took many (5) ______. There is no (6) ______ on Pluto. It is so cold that air would (7) ______ into snow. Without air, human (8) ______ can't live on Pluto.
六、语篇翻译(将下列英文句子翻译成中文)
1. Pluto is a special planet. It travels around the Sun.
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2. It takes Pluto about 248 Earth years to go around the Sun.
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3. Pluto is about 40 times farther from the Sun than Earth.
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4. Scientists put the pictures together and learned more about Pluto.
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5. It is so cold on Pluto that air would freeze into something like snow.
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七、阅读理解(共2篇短文,每篇5个小题,每题仅有一个最佳选项)
A. Pluto
Pluto is a special planet. It travels around the Sun. It takes Pluto about 248 Earth years to go around the Sun. Clyde Tombaugh discovered Pluto in 1930. Pluto is about 40 times farther from the Sun than Earth. It has five small satellites (moons). To have a better look at the planet and its satellites, scientists sent a spaceship to fly close to it. The spaceship took many pictures. Scientists put the pictures together and learned more about Pluto. There is no air on the planet. It is so cold on the planet that air would freeze into something like snow. Without air, human beings can't live on the planet.
( )1. How long does it take Pluto to go around the Sun?
A. About 248 days. B. About 248 Earth years. C. About 365 days. D. About 365 years.
( )2. Who discovered Pluto?
A. Newton. B. Copernicus. C. Clyde Tombaugh. D. Einstein.
( )3. How many satellites does Pluto have?
A. 3. B. 4. C. 5. D. 6.
( )4. Why did scientists send a spaceship to Pluto?
A. To find aliens. B. To have a better look at the planet.
C. To bring back rocks. D. To find water.
( )5. Why can't people live on Pluto?
A. Because it is too small. B. Because there is no air.
C. Because it is too far. D. Because it has no water.
B. Comparing Planets
The table below shows information about three planets: Mercury, Venus and Earth. Mercury has an average temperature of about 167°C. Venus has an average temperature of about 464°C. Earth has an average temperature of about 14°C. Mercury is the smallest of the three. Venus is larger than Mercury but smaller than Earth. Earth is the largest of the three. The distance from the Sun: Mercury is the closest, Venus is farther, and Earth is the farthest. The average temperature on Mercury is higher than that on Earth. The average temperature on Venus is the highest of the three planets.
( )6. What is the average temperature on Earth?
A. About 14°C. B. About 167°C. C. About 464°C. D. About 100°C.
( )7. Which planet is the largest of the three?
A. Mercury. B. Venus. C. Earth. D. Mars.
( )8. Which planet is the closest to the Sun?
A. Mercury. B. Venus. C. Earth. D. Mars.
( )9. Which planet has the highest average temperature?
A. Mercury. B. Venus. C. Earth. D. Mars.
( )10. The average temperature on Mercury is ______ than that on Earth.
A. lower B. higher C. the same D. not mentioned
八、完形填空
Pluto is a small, icy world at the edge of our solar system. It (1) ______ around the Sun once every 248 Earth years, much slower than any other planet. Clyde Tombaugh, a young American astronomer, first discovered Pluto (2) ______ 1930 after months of patient observation. Since then, scientists (3) ______ many new things about this distant planet.
Pluto has five known satellites, (4) ______ Charon, which is nearly the same size as Pluto itself. Some scientists even consider them a "double planet" system. In 2015, the New Horizons spaceship flew (5) ______ to Pluto and sent back thousands of photos. These images showed mountains, glaciers, and a thin atmosphere.
Because Pluto is so far from the Sun, its surface is (6) ______ cold — temperatures can drop to -230°C. At that temperature, even nitrogen gas would (7) ______ into snow. The thin atmosphere is mostly nitrogen, but it (8) ______ disappear as Pluto moves farther from the Sun during its long orbit.
For many years, Pluto (9) ______ the ninth planet in our solar system. However, in 2006, scientists redefined what a planet is, and Pluto was reclassified as a dwarf planet. (10) ______ this change, many people still love Pluto and hope to learn more about this mysterious world.
( )1. A. travel B. travels C. traveled
( )2. A. at B. on C. in
( )3. A. learn B. learned C. have learned
( )4. A. include B. includes C. including
( )5. A. close B. closely C. closer
( )6. A. so B. such C. too
( )7. A. freeze B. freezes C. frozen
( )8. A. may B. must C. should
( )9. A. considered B. was considered C. is considered
( )10. A. Because B. Although C. Unless
九、写作
题目:My Dream of Exploring Space
写作要求:
1. 词数 80 词左右;
2. 简单介绍你对太空的看法;
3. 说说你的太空梦想,以及你打算怎样努力实现这个梦想;
4. 语句通顺,时态使用一般现在时、一般将来时为主。
My Dream of Exploring Space
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参考答案
一、单词默写
1. Pluto 2. freeze 3. being 4. discover 5. spaceship
6. satellite 7. average 8. take
二、词组默写
1. average temperature 2. the distance from the Sun
3. human beings 4. go around the Sun 5. take pictures 6. fly close to
三、根据要求完成句子
1. go 2. discovered 3. farther 4. satellites 5. beings
四、连词成句
1. It takes Pluto about 248 Earth years to go around the Sun.
2. Clyde Tombaugh discovered Pluto in 1930.
3. Pluto has five small satellites.
4. Scientists sent a spaceship to fly close to Pluto.
5. People can't live on the planet without air.
五、选词填空
1. travels 2. discovered 3. farther 4. satellites 5. pictures
6. air 7. freeze 8. beings
六、语篇翻译
1. 冥王星是一颗特殊的行星。它绕着太阳运行。
2. 冥王星绕太阳运行一周大约需要248个地球年。
3. 冥王星与太阳的距离大约是地球的40倍。
4. 科学家把照片拼在一起,了解了更多关于冥王星的信息。
5. 冥王星上非常冷,空气会冻结成类似雪的东西。
七、阅读理解
A篇:1. B 2. C 3. C 4. B 5. B
B篇:6. A 7. C 8. A 9. B 10. B
八、完形填空
1. B 2. C 3. C 4. C 5. A
6. A 7. A 8. A 9. B 10. B
九、写作
(参考范文)
Space is amazing and full of secrets. It is beyond our earth and attracts lots of people.
I am very interested in space. I hope to become an astronaut one day. I want to travel to other planets and learn more about the universe.
To make my dream come true, I will study hard at science and math. I will also exercise every day to keep healthy. I believe my dream will come true some day.
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