(共28张PPT)
Unit 6 Earth and Beyond
Reading for Writing
（仁爱版 2024）八年级
上
0
2
Pre-writing
While-writing
4
Post-writing
6
Summary
Assessment
Homework
1
3
5
7
Learning objectives
Lead in
By the end of the lesson, I will be able to...
1
2
3
understand factual information about Earth and Mars;
use info-extraction to fill charts and discuss planetary neighbors in pairs;
choose two planets to make charts and write contrast essays.
00
Learning objectives
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01
Lead in
Diameter:
About 13,000 km
Average Temperature:
14℃
Distance from the Sun:
About 150 million km
Ice:
Yes
(both on and under the surface)
Diameter:
Average Temperature:
Distance from the Sun:
Ice:
About 6,800 km
-63℃
About 228 million km
Yes (a lot underground)
Diameter:
Average Temperature:
Distance from the Sun:
Ice:
About 12,100 km
About 462℃
About 108 million km
No
Diameter:
Average Temperature:
Distance from the Sun:
Ice:
About 4,880 km
430℃ during the day, -180℃ at night
About 150 million km
No
Color the Sun, Earth and Mars. Talk about Earth’s other neighbors you know.
Pre-writing
02
Pair work.
Earth and Its Neighbour —Mars
Is there life in outer space We may think of the same planet— Mars.
Mars is smaller than Earth. It has a diameter of around 6,800 kilometers and Earth’s diameter is around 13,000 kilometers. Mars looks red because of its red soil, while most parts of Earth look blue because of its oceans. As a neighbor planet, Mars is farther from the Sun than Earth. Mars is about 228 million kilometers away from the Sun, while Earth is about 150 million kilometers away. That’s why Mars is colder than Earth. The temperature on Mars is about minus 63℃; here The temperature is about 14℃ on average. Although the two planets have many differences, they have something in common — water. On Mars, there is a lot of ice under the ground; On earth, we have water both on and under the ground.
Mars is waiting for us to explore, and so is the universe.
Pre-writing
02
Read and take notes.
in outer space在太空中
think of想到；想起
smaller than比…… 小
because of因为；由于
farther from...than...比…… 离…… 更远
That’s why那就是…… 的原因
have something in common有共同之处
under the ground在地下
waiting for等待
so is...…… 也是如此
although / :l' u/ conj.虽然；尽管；即便
common /'k m n/ n.公地 adj. 共有的，共同的；普遍的
Read the text and complete the comparison chart.
Read and fill.
planet Diameter distance from the Sun Average temperature Water
Mars
Earth
around 6,800 kilometers
228 million kilometers
about minus 63℃
a lot of ice under the ground
around 13,000 kilometers
150 million kilometers
about 14℃
water both on and under the ground
Pre-writing
02
Is there life in outer space We may think of the same planet— Mars.
Mars is smaller than Earth. It has a diameter of around 6,800 kilometers and Earth’s diameter is around 13,000 kilometers. Mars looks red because of its red soil, while most parts of Earth look blue because of its oceans. As a neighbor planet, Mars is farther from the Sun than Earth. Mars is about 228 million kilometers away from the Sun, while Earth is about 150 million kilometers away. That’s why Mars is colder than Earth. The temperature on Mars is about minus 63℃; here The temperature is about 14℃ on average. Although the two planets have many differences, they have something in common — water. On Mars, there is a lot of ice under the ground; On earth, we have water both on and under the ground.
Mars is waiting for us to explore, and so is the universe.
Read the text and match the main idea.
Activity 2 Read and match.
Pre-writing
02
Mars is linked to extraterrestrial life.
Mars-Earth: differences (size, color, etc.) & similarity (water).
Mars and the universe await exploration.
Is there life in outer space We may think of the same planet— Mars.
Mars is smaller than Earth. It has a diameter of around 6,800 kilometers and Earth’s diameter is around 13,000 kilometers. Mars looks red because of its red soil, while most parts of Earth look blue because of its oceans. As a neighbor planet, Mars is farther from the Sun than Earth. Mars is about 228 million kilometers away from the Sun, while Earth is about 150 million kilometers away. That’s why Mars is colder than Earth. The temperature on Mars is about minus 63℃; here The temperature is about 14℃ on average. Although the two planets have many differences, they have something in common — water. On Mars, there is a lot of ice under the ground; On earth, we have water both on and under the ground.
Mars is waiting for us to explore, and so is the universe.
Activity 2 Analyze the outline.
Beginning
Middle
End
introduce the topic of extraterrestrial life and link to Mars
Body: describe Mars-Earth comparisons (differences ; similarity)
present the significance of exploring Mars & the universe
Is there life in outer space We may think of the same planet— Mars.
Mars is smaller than Earth. It has a diameter of around 6,800 kilometers and Earth’s diameter is around 13,000 kilometers. Mars looks red because of its red soil, while most parts of Earth look blue because of its oceans. As a neighbor planet, Mars is farther from the Sun than Earth. Mars is about 228 million kilometers away from the Sun, while Earth is about 150 million kilometers away. That’s why Mars is colder than Earth. The temperature on Mars is about minus 63℃; here The temperature is about 14℃ on average. Although the two planets have many differences, they have something in common — water. On Mars, there is a lot of ice under the ground; On earth, we have water both on and under the ground.
Mars is waiting for us to explore, and so is the universe.
diameter
appearance color
distance from the Sun
temperature
water resource
While-writing
03
Activity 2 Analyze the outline.
Beginning
Middle
End
introduce the topic of extraterrestrial life and link to Mars
Body: describe Mars-Earth comparisons (differences ; similarity)
present the significance of exploring Mars & the universe
Is there life in outer space We may think of the same planet— ….
…. is …. than Earth. It has a diameter of around …. kilometers and Earth’s diameter is around 13,000 kilometers. …. looks …. because of its …., while most parts of Earth look blue because of its oceans. As a neighbor planet, …. is …. from the Sun than Earth. …. is about …. million kilometers away from the Sun, while Earth is about 150 million kilometers away. That’s why …. is …. than Earth. The temperature on …. is about ….; here The temperature is about …. on average. Although the two planets have many differences, they have something in common — …. . On …. , there is …. ; On earth, we have water both on and under the ground.
…. is waiting for us to explore, and so is the universe.
While-writing
03
Fill in the blanks and draft your essay with the following information.
planet Diameter distance from the Sun Average temperature Water
Venus
Earth
around 6,800 kilometers
108 million kilometers
around 464℃
no water
around 13,000 kilometers
150 million kilometers
about 14℃
water both on and under the ground
Activity 2 Fill and draft.
While-writing
03
Draw a table to compare two planets, and then draft your essay. The phrases and sentence patterns may help you.
Useful Phrases Useful sentence patterns
because of ... away from... on average... in common It has a diameter of around ...
That is why...
There is a lot of ...
... is waiting for our exploration, so is ...
Activity 3 Draw a table.
While-writing
03
Activity 4
While-writing
03
Draw a chart.
Beginning
Middle
End
introduce the topic of extraterrestrial life and link to Mars
Body: describe Mars-Earth comparisons (differences ; similarity)
present the significance of exploring Mars & the universe
Among the eight planet, Venus is also Earth’s neighbor. Venus is small than Earth. It has a diameter of around 6,800 kilometers and Earth’s diameter is around 13,000 kilometers. Venus is closer to Sun than Earth, at a distance of about 108 million kilometers. So it is more hotter than Earth. And the average temperature on Venus is around 464℃. The temperature on Earth is neither too hot nor too cold. It is about 14℃ on average. There is much water on Earth while there is no water on Venus. So no living things can survive on Venus. Now humans are still exploring the Venus to know more about it.
Post-writing
04
Read and correct.
the exploring the Venus
the closer to
smaller
planets
hotter
How well can you ________________ Self-rating Partner’s rating
express your view of scientific exploration
use the thinking skill of making comparison and contrast
introduce Earth and one of its neighbors
organize ideas into a well-balanced structure
use the theme vocabulary of the unit
use comparative and superlative adjectives
use punctuation
spell the words
Rate your draft, and then complete your essay.
Activity 5 Rate your final draft.
Post-writing
04
The words we have learned
一、汉译英
行星 __________________ 直径 __________________
平均 __________________ 邻居 __________________
土壤 __________________ 海洋 __________________
温度 __________________ 探索 __________________
宇宙 __________________ 共同的 __________________
Summary
05
planet
diameter
average
neighbor
soil
ocean
temperature
explore
universe
common
二、信息匹配（将行星特征与对应的描述连线）
Mars’ diameter
A. about 150 million kilometers away from the Sun
Earth’s distance from the Sun
B. around 6,800 kilometers
Mars’ average temperature
C. has water both on and under the ground
Earth’s water distribution
D. about minus 63℃
Summary
05
The words we have learned
三、用短语的正确形式填空
When we talk about Earth’s neighboring planets, we ______________ (be sure to) think of Mars.
Mars looks red ______________ (because of) its red soil.
______________ (on average), the temperature on Earth is about 14℃.
Earth and Mars have something ______________ (in common)—water.
Mars is about 228 million kilometers ______________ (away from) the Sun.
Mars ____________________________ (have a diameter of around) 6,800 kilometers.
Summary
05
are sure to
because of
On average
in common
away from
has a diameter of around
The words we have learned
四、根据中文提示完成句子
火星比地球更小，它的直径约为 6800 公里。
Mars is ____________ Earth. It ________________ around 6,800 kilometers.
火星因为它的红土壤而看起来是红色的。
Mars looks red ______________ its red soil.
地球和火星有一个共同之处 —— 水。
Earth and Mars _________________________—water.
火星离太阳更远，这就是它更冷的原因。
Mars is farther from the Sun than Earth. ______________ it is colder.
Summary
05
smaller than
has a diameter of
because of
have something in common
That is why
Assessment
06
Self-assessment
I can understand factual information about Earth and Mars.
I can use info-extraction to fill charts and discuss planetary neighbors in pairs.
I can choose two planets to make charts and write contrast essays.
Basic (基础)
Improving(提升)
Extend (拓展)
Homework
07
补全 Activity 2 的行星信息表格；背诵 “Useful phrases & sentence patterns” 板块的内容。
选择地球与另一颗行星，设计对比表格并写一篇 80-100 词的对比作文。
查阅 1-2 个 “火星探测” 的简单信息，结合所学句型，写一段 50 词左右的 “火星探索小介绍”。
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