2026牛津译林八上Unit 7 natural world课文听力MP3_译林牛津八上初二Unit 7自然界听力音频与课文中文翻译

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Unit 7

第 7 单元
The natural world

自然界
To treat the earth kindly is to treat oneself kindly.

善待地球就是善待自己。
In this unit, we will

在本单元中，我们将
1. read about different ecosystems;

1. 了解不同的生态系统；
2. learn about protecting ecosystems;

2. 了解保护生态系统；
3. give suggestions on how to protect ecosystems;

3. 就如何保护生态系统提出建议；
4. better understand the importance of protecting ecosystems.

4. 更好地理解保护生态系统的重要性。
The natural world is wonderful.

自然世界是美妙的。
Let's learn about different ecosystems and see what we can do to help protect them.

让我们了解不同的生态系统，看看我们能做些什么来帮助保护它们。
Welcome to the unit

欢迎来到本单元
Fun facts about ecosystems

关于生态系统的有趣事实
A. Kitty is learning about ecosystems.

A. 基蒂正在学习生态系统。
Read the facts below with her and tick the ones you already know.

与她一起阅读下面的事实，并勾选你已经知道的事实。
Rainforests are home to over half of all the types of animals and plants on earth.

雨林是地球上一半以上动植物的家园。
Coral reefs look like rocks, but they support a lot of life in just a small area.

珊瑚礁看起来像岩石，但它们在很小的区域内支持着大量的生命。
Grasslands often lie between deserts and forests.

草原通常位于沙漠和森林之间。
The ice is home to animals like polar bears and penguins.

冰层是北极熊和企鹅等动物的家园。
B. Kitty and David are talking about ecosystems.

B. 基蒂和戴维正在谈论生态系统。
Work in pairs and discuss the topic.

两人一组，讨论这个话题。
Use the conversation below as a model.

以下面的对话为例。
Do you know anything about ecosystems, David?

戴维，你了解生态系统吗？
I know that grasslands in different places are home to different animals.

我知道不同地方的草原是不同动物的家园。
In Inner Mongolia, there are horses and cows, but in Africa, there are lions and giraffes.

在内蒙古，有马和牛，但在非洲，有狮子和长颈鹿。
Oh, really?

哦，真的吗？
Do you know anything about deserts?

你了解沙漠吗？
Well, it's very dry in deserts because there's little rain.

嗯，沙漠里很干燥，因为雨水很少。
And the difference in temperature between day and night is huge.

并且昼夜温差很大。
Yes, the climate in deserts is so awful that only a few animals and plants can live there.

是的，沙漠的气候非常糟糕，只有少数动植物可以在那里生活。
It's true.

这是真的。
The desert plants keep water in their leaves, and many animals there get water from these plants.

沙漠植物的叶子里有水，那里的许多动物都从这些植物里取水。
C. What other fun facts about ecosystems do you know?

C. 关于生态系统，你还知道哪些有趣的事实？
Reading

阅读
The earth's main ecosystems

地球的主要生态系统
Simon is reading an article about the three main ecosystems on earth.

西蒙正在读一篇关于地球上三个主要生态系统的文章。
Here is the article.

这是文章。
Before reading, think about the questions below.

在阅读之前，请思考以下问题。
1. What kinds of things do you think are in an ecosystem?

1. 你认为生态系统中有哪些东西？
2. What do you know about oceans, wetlands and forests?

2. 你对海洋、湿地和森林了解多少？
The big three: oceans, wetlands and forests

三大生态系统：海洋、湿地和森林
An ecosystem includes all the living and non-living things in an area.

一个生态系统包括一个地区的所有生物和非生物。
It can be small like a pond, or large like a grasslands.

生态系统可以小到小池塘，大到大草原。
Each ecosystem helps keep the balance of nature.

每个生态系统都可以帮助保持自然环境的平衡。
The ocean is a very large ecosystem on earth.

海洋是地球上一个非常大的生态系统。
It covers about 71% of the earth's surface and produces about 70% of the earth's oxygen.

它覆盖了地球表面约 71% 的面积并产生了地球上约 70% 的氧气。
The ocean holds plenty of salt water.

它含有大量的盐水。
Some of the water rises to the sky.

部分水上升到天空。
Later, it falls onto the land as rain and then returns to the ocean.

过后，作为雨落在陆地上然后回到海洋。
This goes on and on, so the ocean is just like the 'heart' of the earth.

这种情况会一直持续下去，所以海洋就像地球的“心脏”。
Wetlands only cover about 6% of the earth's land area.

湿地仅占地球陆地面积的 6% 左右。
However, they are home to about 40% of all the types of plants and animals.

但它们是世界上约 40% 的所有种类动植物的家园。
Plants in wetlands help get rid of pollution and make the water clean.

湿地中的植物有助于消除污染，使水变得清洁。
Wetlands can also help prevent floods.

湿地也有助于防止洪水。
During heavy rains, wetlands store water like huge sponges.

在大雨期间，湿地像巨大的海绵一样储存水。
This way, they act like the 'kidneys' of the earth.

这样来说，它们就像地球的“肾脏”。
Forests make up nearly a third of the earth's land area.

森林占地球陆地面积的近三分之一。
Plants there take in carbon dioxide from the air and produce oxygen.

那里的植物从空气中吸收二氧化碳并产生氧气。
They also trap harmful things in their leaves and help clean the air.

它们还能将有害物质吸附在叶片上，并有助于净化空气。
Therefore, people often call forests the 'lungs' of the earth.

因此，人们常称森林为地球的“肺”。
Each of these ecosystems supports millions of plants and animals.

这些生态系统中的每一个都支撑着数百万的植物和动物。
They keep the planet healthy and make our world a better place.

它们让地球保持健康，让我们的世界变得更美好。
TIP

小贴士
Similes create similarity between two different things by using words such as like and as to help the reader better understand the content.

比喻通过使用诸如 like 和 as 等单词来创建两个不同事物之间的相似性，以帮助读者更好地理解内容。
A. Look at the picture and choose the correct descriptions for each ecosystem according to the article.

A. 看图片，根据文章为每个生态系统选择正确的描述。
Write the correct letters in the boxes.

在方框里写正确的字母。
a. Cover about 71% of the earth's surface

a. 覆盖地球表面约 71%
b. Cover nearly a third of the earth's land area

b. 覆盖地球近三分之一的陆地面积
c. Help clean the water

c. 帮助清洁水
d. Help make the air clean

d. 帮助清洁空气
e. Help prevent floods

e. 帮助预防洪水
f. Produce about 70% of the earth's oxygen

f. 产生地球上约 70% 的氧气
g. The 'heart' of the earth

g. 地球的“心脏”
h. The 'lungs' of the earth

h. 地球的“肺”
i. The 'kidneys' of the earth

i. 地球的“肾脏”
B. Read the article again.

B. 再读一遍这篇文章。
Choose the correct answers to the questions.

选择问题的正确答案。
1. What is an ecosystem made up of?

1. 生态系统由什么组成？
a. Oceans, wetlands and forests.

a. 海洋、湿地和森林。
b. Plants and animals.

b. 植物和动物。
c. Living and non-living things.

c. 生物和非生物。
2. Why is the ocean the largest ecosystem of the three?

2. 为什么海洋是三者中最大的生态系统？
a. It holds plenty of the earth's water.

a. 它拥有大量的地球水。
b. It makes up about 71% of the earth's surface.

b. 它约占地球表面的 71%。
c. It is home to many kinds of plants and animals.

c. 它是许多动植物的家园。
3. What do wetlands do during heavy rains?

3. 湿地在大雨期间做什么？
a. They make the water clean.

a. 它们使水变得干净。
b. They hold water.

b. 它们能盛水。
c. They get rid of water.

c. 它们能去除水。
4. 'They also trap harmful things in their leaves and help clean the air.'

4.“它们还能吸附有害物质在它们的叶子上，帮助清洁空气。”
Which word can we use to mean 'trap'?

我们可以用哪个词来表达“trap”？
a. keep

a. （使）保持，（使）留在
b. drive

b. 驱动
c. produce

c. 生产
5. Where can we read this kind of article?

5. 我们在哪里可以读到这种文章？
a. In a newspaper.

a. 在报纸上。
b. In a travel guide.

b. 在旅游指导上。
c. In a geography magazine.

c. 在地理杂志上。
C. Simon is listening to a podcast about the ocean ecosystem.

C. 西蒙正在听一个关于海洋生态系统的播客。
Complete the script with the correct forms of the words and phrases in the box below .

用下面方框中单词和短语的正确形式完成脚本。
balance

平衡
be home to

是⋯⋯的家园
surface

表面
oxygen

氧气
get rid of

清除；摆脱
take in

吸收
store

贮存
therefore

因此
The biggest ecosystem

最大的生态系统
Hello listeners!

听众们好！
Welcome to Science with Doctor Ted.

欢迎来到《和泰德博士一起探索科学》杂志。
Today I'll talk to you about the biggest ecosystem on our planet.

今天，我将与大家探讨我们星球上最大的生态系统。
D. Think about the questions below.

D. 想想下面的问题。
Share your answers with your classmates.

与同学分享你的答案。
1. Why are the three ecosystems important for the earth?

1. 为什么这三个生态系统对地球很重要？
2. What are some of the non-living things in an ecosystem?

2. 生态系统中有哪些非生物？
Are they important?

它们重要吗？
Give reasons.

给出理由。
3. How do human activities harm the ecosystems?

3. 人类活动如何损害生态系统？
Give an example.

举个例子。
Grammar

语法
A. Verbs and sentence structures (Ⅱ)

A. 动词和句子结构（Ⅱ）
Some verbs can take two objects, a direct object and an indirect object.

有些动词可以取两个宾语，一个直接宾语和一个间接宾语。
S

主语
V

谓语
O

宾语（间接）
O

宾语（直接）
S + V + O (indirect) + O (direct) → The sun gives ocean animals light and heat.

主语 + 谓语 + 宾语（间接） + 宾语（直接） → 太阳为海洋动物提供光和热。
We can change the order of the direct and indirect objects by using to or for.

我们可以通过使用 to 或 for 来改变直接和间接宾语的顺序。
The sun gives light and heat to ocean animals.

太阳为海洋动物提供光和热。
We should build a better home for local wildlife.

我们应该为当地野生动物建造一个更好的家园。
An object complement can also follow a direct object to give more information about the object.

宾语补语也可以跟在直接宾语之后，以提供有关宾语的更多信息。
TIP

小贴士
These verbs are often used with to:

这些动词通常与 to 一起使用：
give, hand, lend,

给，交，借，
offer, pass, post,

提供，传递，邮递，
read, sell, send,

读，卖，发送，
show, take, teach,

展示，拿，教，
tell, write

告诉，写
S

主语
V

谓语
O

宾语（直接）
C

补语
S + V + O (direct) + C → The mother bird keeps the eggs safe.

主语+谓语+宾语（直接）+补语 → 鸟妈妈确保蛋的安全。
They call the ocean the 'heart' of the earth.

他们称海洋为地球的“心脏”。
Trees keep the air clean.

树木保持空气清洁。
We can add an adverbial to the structures above.

我们可以在上面的结构中添加一个状语。
We use an adverbial to show when, where or how an action is done.

我们用状语来表示动作何时、何地或如何完成。
The ocean provides a home for animals all year round.

海洋常年为动物提供家园。
TIP

小贴士
These verbs are often used with for:

这些动词通常和 for 连用：
build, buy, cook,

建造，购买，烹饪，
find, get, leave,

查找，获取，离开，
make, order, pick,

制作，订购，挑选，
prepare, save

准备，保存
A1. Amy is writing about the desert.

A1. 埃米正在写关于沙漠的文章。
Read her writing and write the main structures of the underlined sentences using S + V + O + O or S + V + O + C.

阅读她的文章，用“主语+谓语+宾语（间接）+宾语（直接）”或“主语+谓语+宾语（直接）+补语”写出下划线句子的主要结构。
The desert

沙漠
Deserts are difficult places for animals to live.

沙漠是动物难以生存的地方。
Little rain and too much sunshine make deserts dry.

少雨多阳光使沙漠干燥。
Many desert plants give animals water.

许多沙漠植物为动物提供水分。
These plants store water in their leaves.

这些植物把水储存在叶子里。
Some animals feed on the leaves, and the water can keep them healthy.

有些动物以树叶为食，水可以保持它们的健康。
Quite a few desert plants also give animals food.

不少沙漠植物也给动物提供食物。
Their flowers and fruits can provide animals with energy.

它们的花朵和果实可以为动物提供能量。
B. Using and, but, or and so

B. 使用 and，but，or 和 so
We use conjunctions like and, but, or and so to join ideas together.

我们使用 and，but，or 和 so 等连词将想法连接在一起。
We use and to join similar or related ideas.

我们使用 and 连接类似或相关的想法。
Rainforests are hot.

热带雨林很热。
They get a lot of rain.

它们下了很多雨。
Rainforests are hot, and they get a lot of rain.

雨林很热，而且雨水很多。
When joining more than two expressions, we usually only put and before the last.

当连接两个以上的表达时，我们通常只在最后一个表达之前加上 and。
The desert is hot, dry and covered by sand.

沙漠炎热干燥，被沙子覆盖着。
Oceans provide food for many animals, produce oxygen and store heat from the sun.

海洋为许多动物提供食物，产生氧气并储存太阳的热量。
We use but to join ideas that are different.

我们使用 but 连接不同的想法。
This kind of fish can find enough space here.

这种鱼在这里能找到足够的空间。
They can find little food.

它们几乎找不到食物。
This kind of fish can find enough space here, but they can find little food.

这种鱼在这里能找到足够的空间，但它们能找到的食物很少。
We use or to introduce another possibility.

我们使用 or 引入另一种可能性。
Birds can live in the forest.

鸟可以在森林里生活。
They can also live in the wetland.

它们也可以生活在湿地中。
Birds can live in the forest or in the wetland.

鸟类可以生活在森林或湿地。
In negative sentences, we use or to join two or more ideas.

在否定句中，我们使用 or 连接两个或多个想法。
The deep ocean isn't warm.

深海并不温暖。
The deep ocean isn't bright.

深海并不明亮。
The deep ocean isn't noisy.

深海并不喧闹。
The deep ocean isn't warm, bright or noisy.

深海并不温暖、明亮或喧闹。
We use so to express the result of something.

我们用 so 来表达某事的结果。
Deserts are dry.

沙漠很干燥。
Some plants keep water in their leaves.

有些植物将水储存在它们的叶子里。
Deserts are dry, so some plants keep water in their leaves.

沙漠很干燥，所以有些植物将水储存在它们的叶子里。
B1. David is writing about ecosystems.

B1. 戴维正在写关于生态系统的文章。
Help him join his ideas using and, but, or and so.

使用 and，but，or 和 so 等帮助他将想法结合起来。
1. Grasslands can be hot.

1. 草原可能很热。
Animals sit under the shade of trees.

动物们坐在树荫下。
2. Wetlands can have salt water.

2. 湿地可以有盐水。
They can have fresh water.

它们可以有淡水。
3. There are forests in Asia.

3. 亚洲有森林。
There are forests in Europe.

欧洲有森林。
4. Deserts are dry.

4. 沙漠是干燥的。
They are not always hot.

它们并不总是很热。
5. Some rainforest animals don't like wind.

5. 有些雨林动物不喜欢风。
They don't like rain.

它们不喜欢下雨。
B2. Write about what you know about ecosystems, using S + V + O + O and S + V + O + C.

B2. 使用“主语+谓语+宾语（间接）+宾语（直接）”和“主语+谓语+宾语（直接）+补语”写下你对生态系统的了解。
Use and, but, or and so to join your ideas.

使用 and，but，or 和 so 等来连接你的想法。
Word power

词汇能力
The suffix -ly

后缀 -ly
We can add the suffix -ly to some adjectives to form adverbs or adjectives.

我们可以在一些形容词后加后缀 -ly，形成副词或形容词。
We can also add the suffix -ly to some nouns to form adjectives.

我们也可以在一些名词上加后缀 -ly 来形成形容词。
Adjective

形容词
Adverb

副词
real

真实的
really

真正地
bad

坏的
badly

严重地；非常
careful

小心的
carefully

小心地
slow

缓慢的
slowly

缓慢地
near

近的
nearly

几乎
easy

容易的
easily

容易地
Noun

名词
Adjective

形容词
friend

朋友
friendly

友好的
love

爱
lovely

可爱的
year

年
yearly

每年的
month

月
monthly

每月的
week

周
weekly

每周的
day

白天
daily

日常的
Adjective

形容词
Adjective

形容词
kind

友好的
kindly

亲切的
like

相似的
likely

可能的
live

活的
lively

活泼的
dead

死的
deadly

致命的
TIP

小贴士
The following adjectives are also adverbs:

以下形容词也是副词：
daily, weekly, monthly,

每日，每周，每月，
yearly, kindly, deadly

每年，亲切地，极其
A. Millie is writing about coral reefs.

A. 米莉正在写关于珊瑚礁的文章。
Complete her text with the correct forms of the words in brackets.

用括号中单词的正确形式填空。
You might hear about the Great Barrier Reef in Australia, the largest coral reef system on earth.

你可能听说过澳大利亚的大堡礁，它是地球上最大的珊瑚礁系统。
You can even see it from space!

你甚至可以从太空看到它！
B. Write about the wonderful natural world using some words with the suffix -ly.

B. 用后缀为 -ly 的单词写一些关于奇妙的自然世界的文章。
Integration

整合
Protecting ecosystems

保护生态系统
A. Daniel is reading an article about Zhalong Nature Reserve.

A. 丹尼尔正在读一篇关于扎龙自然保护区的文章。
Read with him and answer the questions below.

与他一起阅读并回答以下问题。
Zhalong Nature Reserve is in Heilongjiang Province in the north-east of China.

扎龙自然保护区位于中国东北的黑龙江省。
It is one of the world's most important wetlands.

它是世界上最重要的湿地之一。
The area provides food and cover for a lot of wildlife.

该地区为许多野生动物提供食物和栖息地。
It is home to some rare birds.

这里是一些珍稀鸟类的家园。
For example, about 20% of red-crowned cranes live in Zhalong.

例如，约 20% 的丹顶鹤生活在扎龙。
Many birds live in Zhalong all year round,

许多鸟全年都住在扎龙，
while some go there only for a short stay.

而有些鸟只在那里短暂停留。
Most birds are active in the daytime, so you can easily watch them there.

大多数鸟类在白天都很活跃，所以你在那里很容易就能看到它们。
Some people want to make the wetlands smaller in order to have more space for farms and buildings.

有些人想让湿地变小，以便有更多的空间用于农场和建筑。
This will lead to less space for wildlife.

这将导致野生动物的生存空间减少。
Moreover, if fishermen keep fishing there, the birds will not have enough food to eat.

此外，如果渔民继续在那里捕鱼，鸟类将没有足够的食物吃。
Now the Chinese government has made laws to prevent all these things in Zhalong.

现在中国政府已经制定了法律来防止扎龙发生这些事情。
1. Why is Zhalong an important place for birds?

1. 为什么扎龙是鸟类的重要栖息地？
2. What other actions can we take to help protect wetlands?

2. 我们还可以采取哪些行动来帮助保护湿地？
B1. Daniel is listening to a talk about a wetland.

B1. 丹尼尔正在听一场关于湿地的演讲。
Listen with him and choose the correct answers to complete the sentences below.

和他一起听，选择正确的答案来完成下面的句子。
There are many wetlands in China.

中国有很多湿地。
Yancheng Nature Reserve in Jiangsu Province in the east of China is one of the world's most important wetlands.

盐城自然保护区位于中国东部的江苏省，是世界上最重要的湿地之一。
It covers an area of about two thousand four hundred and seventy-two square kilometers.

它占地面积约两千四百七十二平方公里。
The mud and sand from the Yellow River and the Yangtze River formed the area.

黄河和长江的泥沙形成了这个地区。
Yancheng Nature Reserve provides a home for many different plants and rare birds.

盐城自然保护区为许多不同的植物和珍稀鸟类提供了家园。
There are more than four hundred types of birds living there.

那里生活着 400 多种鸟类。
One of them is a red-crowned crane and they are at risk in the wild.

其中一种是丹顶鹤，它们在野外处于危险之中。
There are about two thousand red-crowned cranes in the world.

世界上大约有两千只丹顶鹤。
About four hundred to six hundred red-crowned cranes fly to Yancheng every year to spend the winter.

每年约有四百到六百只丹顶鹤飞往盐城过冬。
B2. Daniel has found another talk by an environmental expert about how to protect wetlands.

B2. 丹尼尔找到了另一位环境专家关于如何保护湿地的演讲。
Listen with him and complete the notes below.

和他一起听，完成下面的笔记。
Wetlands are really important for wildlife.

湿地对野生动物来说非常重要。
We should try our best to protect wetlands.

我们应该尽最大努力保护湿地。
There are two main problems for wetlands today.

今天的湿地有两个主要问题。
First, people use the land for farms and buildings.

首先，人们将土地用于农场和建筑。
Another problem is caused by tourists.

另一个问题是游客造成的。
As people move through wetlands, they may bring trouble to the animals there or harm the plants.

当人们穿过湿地时，他们可能会给那里的动物带来麻烦或伤害植物。
To help solve these problems, governments can take action by making laws to stop people from building on wetlands.

为帮助解决这些问题，政府可以采取制定法律阻止人们在湿地上建造房屋。
Governments can also make laws to reduce the number of tourists visiting wetlands and make sure visitors do no harm while they are there.

政府还可以制定法律，减少参观湿地的游客数量，并确保游客在湿地期间不会受到伤害。
Local communities should also work together to help protect wetlands to keep the ecosystem healthy.

当地社区也应共同努力，帮助保护湿地，保持生态系统的健康。
They can help clean up pollution and guide tourists.

他们可以帮助清理污染和引导游客。
They can also plant trees to attract more birds, animals, and insects.

他们还可以种树来吸引更多的鸟类、动物和昆虫。
B3. Daniel is writing an article about wetlands.

B3. 丹尼尔正在写一篇关于湿地的文章。
Complete it below with the information in Parts B1 and B2.

用 B1 和 B2 部分中的信息填写以下内容。
Save the wetlands!

拯救湿地！
C. Daniel and Amy are talking about what they can do to help protect forests.

C. 丹尼尔和埃米正在谈论他们能做些什么来帮助保护森林。
Work in pairs and talk about the topic.

两人一组，讨论这个话题。
Use the conversation below as a model.

以下面的对话为例。
What can we do to help protect forests, Daniel?

我们能做些什么来帮助保护森林，丹尼尔？
Well, we should not throw rubbish in forests.

嗯，我们不应该把垃圾扔到森林里。
We can also work with a clean-up group.

我们也可以与一个清理小组合作。
That's a good idea.

这是个好主意。
Rubbish causes pollution and damages the forest ecosystem.

垃圾造成污染，破坏森林生态系统。
That's true.

确实如此。
And maybe we can take our own chopsticks when eating out.

也许我们出去吃饭的时候可以带上自己的筷子。
It's a great way to save trees.

这是拯救树木的好方法。
Yes. We can encourage people to protect forests too.

对。我们也可以鼓励人们保护森林。
You said it!

你说的对！
We can show people different ways to save forests.

我们可以向人们展示拯救森林的不同方法。
Yes! Education and knowledge are useful tools to help keep forests safe.

对！教育和知识是帮助保护森林安全的有用工具。
I agree.

我同意。
TIP

小贴士
'You said it!'

“你说得对！”
is a common way to express agreement.

是表达同意的常见方式。
D. Imagine you are a member of an eco-club.

D. 想象一下，你是一个生态俱乐部的成员。
You are going to write a proposal asking people to protect an ecosystem and help solve the problems it faces.

你要写一份提案，要求人们保护生态系统，帮助解决它面临的问题。
D1. Look at Amy's outline for her proposal to ask people to help protect the ocean.

D1. 看看埃米的大纲，了解她要求人们帮助保护海洋的建议。
Please help protect the ocean

请帮助保护海洋
The importance of the ocean

海洋的重要性
Home to many kinds of sea life

多种海洋生物的家园
Provides us with food

为我们提供食物
Offers us space for fun

为我们提供了娱乐的空间
The problems it faces

它面临的问题
Millions of tons of plastic waste

数百万吨塑料垃圾
Wastewater from factories and houses

工厂和房屋的废水
What we can do

我们能做什么
Clean up the beach

清理海滩
Use environment-friendly products

使用环保产品
Tell people how to protect the ocean

告诉人们如何保护海洋
A call to action

行动号召
Volunteer to help

主动提供帮助
D2. Read Amy's proposal on protecting the ocean.

D2. 阅读埃米关于保护海洋的建议。
Dear Sir or Madam,

尊敬的先生或女士：
Introduction: Say why you are writing the proposal.

引言：说出你为什么要写这份提案。
I am writing today to ask for your help in protecting the ocean.

我今天写信请求你们帮助保护海洋。
Main body:

正文：
Say why the ecosystem is important.

说明为什么生态系统很重要。
State the problems it faces and how people can help.

陈述它面临的问题以及人们如何提供帮助。
The ocean is home to many kinds of sea life.

海洋是多种海洋生物的家园。
It provides us with food and offers us space to have fun.

它为我们提供食物，并为我们提供娱乐的空间。
However, the ocean is facing many problems.

然而，海洋正面临着许多问题。
Pollution is one of the biggest problems.

污染是最大的问题之一。
There are millions of tons of plastic waste in the ocean.

海洋中有数百万吨塑料垃圾。
Also, wastewater from factories and houses travels to the ocean and causes pollution.

此外，工厂和房屋的废水会流入海洋并造成污染。
This will harm or even kill sea life.

这会伤害甚至杀死海洋生物。
We can help solve the problems.

我们可以帮助解决这些问题。
We should keep beaches clean and use more environment-friendly products.

我们应该保持海滩清洁，使用更环保的产品。
It is also a good idea to tell people how to protect the ocean.

告诉人们如何保护海洋也是一个好主意。
We can also encourage them to help.

我们也可以鼓励他们提供帮助。
Conclusion:

结论：
Encourage people to take action.

鼓励人们采取行动。
It is meaningful to join an environmental group and work as a volunteer.

加入环保组织并做志愿者是有意义的。
Please join us.

请加入我们。
Together we can help protect the ocean.

我们可以一起帮助保护海洋。
With kind thanks,

谨启，
Zhao Min

赵敏
TIP

小贴士
We often end a proposal with a strong and moving sentence to encourage the reader to take action.

我们经常用一句有力而感人的句子来结束一个提案，以鼓励读者采取行动。
D3. Choose an ecosystem and write a proposal asking people to protect it.

D3. 选择一个生态系统，写一份提案，要求人们保护它。
Make an outline like the one in Part D1.

像 D1 部分中的大纲一样做一个大纲。
Use Amy's proposal as a model.

以埃米的提议为例。
Useful expressions

常用表达
Dear Sir or Madam, ...

尊敬的先生或女士：⋯⋯
I am writing (to you) today ...

我今天写信（给你）⋯⋯
I want to ask you to ...

我想请你⋯⋯
... is/are home to ...

⋯⋯是⋯⋯的家园。
One of the main problems is ...

主要问题之一是⋯⋯
Another problem is ...

另一个问题是⋯⋯
It is meaningful to ...

⋯⋯是有意义的
Together we can ...

我们可以一起⋯⋯
Assessment

评估
What I can do

我能做什么
Me

我
Partner

搭档
1. I can retell some facts about different ecosystems.

1. 我可以重述一些关于不同生态系统的事实。
2. I can use verbs and sentence structures, and, but, or and so, and the suffix -ly correctly.

2. 我能正确使用动词和句子结构，and、but、or 和 so，和后缀 -ly。
3. I can talk and write about protecting the ecosystems with the new words in this unit.

3. 我可以用本单元中的新词来谈论和写作保护生态系统。
4. I have some ideas about why it is important to protect ecosystems and the environment.

4. 我对保护生态系统和环境的重要性有一些看法。
Assess your learning of new words and grammar by doing the exercises on page 140.

通过做第 140 页的练习来评估你对新单词和语法的学习情况。
Result:

结果：
Weak

一般
Good

不错
Wonderful

非常棒
I am good at ______.

我擅长______。
I need to spend more time on ______.

我需要花更多的时间在______。
My action plan: ______

我的行动计划：______
Further study

拓展学习
The Chinese Wetlands is a wonderful documentary about various kinds of wetlands in China,

《中国湿地》是一部精彩的纪录片，讲述了中国各种湿地、
the Chinese people's efforts to protect them and the achievements we have made.

中国人民保护湿地的努力以及我们取得的成就。
Watch it to learn more about the importance of wetlands and share your findings with your classmates.

观看它，了解更多关于湿地重要性的信息，并与同学分享你的发现。

牛津译林版八年级上册英语Unit 7单词跟读音频

单词跟读

coral

reef

penguin

ecosystem

climate

wetland

include

pond

hold

plenty

effort

meaningful

wild

sick

mainly

increase

government

growth

birth

protection

horn

result

melt

shark

fat

manage

easily

whale

drop

知识点笔记

2026牛津译林八上 Unit 7 课文听力MP3与双语翻译课文语法考点、听力问答与重点短语笔记

八上初二第七单元自然界听力透析

《Unit 7 The natural world》配套听力材料主要考查科普说明文的细节抓取。重点考查湿地、森林与海洋生态系统的特征对比，要求考生在听音过程中敏锐提取数据支撑与因果逻辑标志词。

生态保护高频听力原句问答

1. In this unit, we will read about different ecosystems. 在本单元中，我们将阅读了解不同的生态系统。
2. Learn about protecting ecosystems. 了解保护生态系统。
3. What can we do to help the wetland ecosystem? 我们能做些什么来帮助湿地生态系统？
4. We should stop polluting the rivers. 我们应当停止污染河流。
5. To treat the earth kindly is our common duty. 友善对待地球是我们的共同责任。

Unit 7动名词与不定式考点突破

1. protect 动名词形式 protecting，作介词 about 的宾语；
2. 疑问词 + 不定式结构：how to protect ecosystems 作介词 on 的宾语；
3. 词义辨析：kindly 副词，kind 形容词，表示友善与仁慈。

牛津译林版八年级上册Unit 7英语最新练习题

牛津译林版八年级上册课文朗读

Unit 1 Friendship Unit 2 School life Unit 3 To be a good learner Unit 4 Hands-on fun Project 1 A class booklet about best friends Unit 5 Wild animals Unit 6 Seasons Unit 7 The natural world Unit 8 Safe and sound Project 2 An audio campaign to help nature Workbook Irregular verbs Notes Wordlist (by unit)Wordlist (in alphabetical order)Proper nouns

牛津译林版英语其它年级课本朗读

七年级上册七年级下册八年级上册八年级下册九年级上册九年级下册

2026牛津译林八上 Unit 7 课文听力MP3与双语翻译