资源简介

(共35张PPT)
（仁爱版）八年级
上
Unit 6 Earth and Beyond
Theme Reading
Lead in
01
Pre-reading
02
While-reading
03
04
05
06
07
08
Post-reading
Summary
Exercise
Homework
Language points
学生能够掌握太阳系相关词汇，如 “planet（行星）”“diameter（直径）”“temperature（温度）” 等 。
增强学生对地球家园的认知，树立保护地球的意识 。
学生能够理解太阳系的构成，包括太阳、八大行星的特点（大小、与太阳距离、温度等 ），行星上是否可能存在生命知识 。
Lead in
01
Do you know what the Sun is in the solar system
Lead in
Look at the picture and answer the question.
The Sun is a star! It's the only star in our solar system. And as a star, it has eight planets around it. Earth is one of them.
Pre-reading
02
Pre-reading
Pair Work. Look at the picture and discuss the questions.
The amazing solar system
Theme Reading
What can you see in the picture
We can see the Sun and eight planets orbiting it in the solar system.
Pre-reading
Pair Work. Look at the picture and discuss the questions.
The amazing solar system
Theme Reading
Pre-reading
Pair Work. Look at the picture and discuss the questions.
A: Let's do Activity 1. Look at the solar system picture. Which planet do we live on
B: We live on Earth. It's the blue and white one, looks like our home.
A: Right. Which planet is the largest
B: Jupiter! It's the big, striped one. Way bigger than the others.
Pre-reading
Pair Work. Look at the picture and discuss the questions.
A: Yep. Which planet might have life
B: Maybe Mars It looks a bit like Earth, and scientists are curious about it.
A: Cool. Which planet is closest to the Sun
B: Mercury. It's the tiny one near the Sun.
While-reading
03
While-reading
Read the text and summarize the main idea.
When you look up at the sky at night, you can see many stars. But do you know the Sun is a star too Yes, it is the only one in the solar system. As a star, the Sun has eight planets around it, and Earth is one of them.
太阳系
While-reading
Read the text and summarize the main idea.
Among the eight planets, Earth is a middle-sized one, with a diameter of around 13,000 kilometers. Three of the planets are smaller than Earth. They are Mercury, Venus and Mars. The other four planets are larger. They are Jupiter, Saturn, Uranus and Neptune. In the solar system, Jupiter is the largest planet, with a diameter of about 140,000 kilometers.
行星
直径
While-reading
Read the text and summarize the main idea.
Mercury is the closest planet to the Sun, at a distance of about 58 million kilometers, while Neptune is the farthest, at a distance of about 4.5 billion kilometers. As for Earth, it is the third closest, closer than Mars but farther away than Venus and Mercury. Mercury and Venus are much hotter than Earth, while Jupiter, Uranus and Neptune are much colder.
距离，间距
While-reading
Read the text and summarize the main idea.
For example, the temperature on Neptune is around minus 200℃. No living things can survive on these planets. As our home, Earth is alive with life because it is neither too hot nor too cold. Mars is more similar to Earth in size and temperature. And there's also ice there! So scientists are looking for life on Mars.
生存，存活
While-reading
Read the text and summarize the main idea.
Summary: The text mainly talks about in the solar system. In the text, we can find most of the planets are
very Earth, while Mars may be similar to Earth in .
planets
different from
size and temperature
While-reading
Read the text again and complete the detail classification chart.
planets
sizes
temperatures
life
planets
Post-reading
04
Post-reading
Complete the table according to the text.
around 13,000
smaller
about 58 million
much hotter
larger
about 4.5 billion
200℃
about 140,000
much colder
Post-reading
Find out other planets in the solar system on the internet, and then share the information in your class.
Venus：It's one of the inner planets. Second closest to the Sun after Mercury.
Group
work
Post-reading
Find out other planets in the solar system on the internet, and then share the information in your class.
Features：Known as the “evening star” or “morning star” as it's bright. Has a thick, toxic atmosphere mainly of carbon dioxide, causing a runaway greenhouse effect. Surface temperature is extremely high, around 462℃ on average, hot enough to melt lead. Rotates very slowly, and in the opposite direction to most planets.
Venus
Group
work
Summary
05
The amazing solar system
Solar system components: Sun + eight planets
Planet features:
Size: Earth (middle - sized, diameter ~13,000 km); Jupiter (largest, ~140,000 km diameter)
Distance from Sun: Mercury (closest); Neptune (farthest); Earth (third closest)
Temperature: Mercury, Venus (hot); Jupiter, Uranus, Neptune (cold); Earth (moderate)
Life possibility: Earth (has life); Mars (similar to Earth in size & temp., scientists exploring)
Language points
06
1. Earth is a middle - sized one, with a diameter of around 13,000 kilometers. Three of the planets are smaller than Earth.
“形容词比较级（如 smaller ） + than” 结构，用于对两个事物进行属性（像尺寸、温度等方面 ）比较，清晰展现出事物间的差异 。
eg:
The moon is ______ (small) than Earth. And some stars are much ______ (big) than the sun.
smaller
bigger
2. Three of the planets are smaller than Earth. They are Mercury, Venus and Mars. The other four planets are larger. They are Jupiter, Saturn, Uranus and Neptune.”
通过 “Three...The other four...” 用于对太阳系行星的不同类别进行分组介绍。依据尺寸，将行星清晰划分为两组 （比地球小 & 比地球大 ）。
eg: ______ (Two) of the fruits are red. They are apples and strawberries. __________________ (The other three) are yellow. They are bananas, pears and lemons.
Two
The other three
07
Exercise
Please choose the correct answer from A, B, C.
1. Which of the following is NOT a planet smaller than Earth
A. Mercury
B. Venus
C. Mars
D. Jupiter
答案：D
解析：文中提到 “Three of the planets are smaller than Earth. They are Mercury, Venus and Mars.” ，说明比地球小的行星是水星（Mercury）、金星（Venus）、火星（Mars），而木星（Jupiter）是比地球大的行星，所以选 D 。
2. What's the position of Earth among the planets in terms of distance from the Sun
A. The closest
B. The second closest
C. The third closest
D. The farthest
答案：C
解析：依据 “As for Earth, it is the third closest, closer than Mars but farther away than Venus and Mercury.” ，可知地球距离太阳是第三近的，所以选 C 。A 是水星的位置，B 是金星的位置，D 是海王星的位置，均不符合。
Please choose the correct answer from A, B, C.
Assessment
07
Self-assessment
I can acquire expressions related to team activities through watching and listening activities.
I can share experiences of team activities in real - life contexts.
I can understand and recognize the importance of collaborative cooperation in team activities.
08
Homework
Basic (基础)
背诵文本中关于太阳系行星特点（大小、距离、温度等 ）的重点句子。
Improving(提升)
Extend (拓展)
仿照 Activity 4，自己绘制表格，并分享给同学们。
以 “My dream trip to a planet” 为题，写一篇小短文，80-100词。

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