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Unit 4 The Earth 重点短语句子知识清单
Welcome to the unit Welcome to the unit
短语： 短语：
amazing facts about the Earth 关于地球的惊人事实
solar system 太阳系
sea level 海平面
be covered by 被……覆盖
as far as we know 据我们所知
plastic pollution 塑料污染
air pollution 空气污染
water pollution 水污染
use fewer plastic bags 使用更少的塑料袋
protect the Earth 保护地球
句子： 句子：
Why should we learn about the Earth 我们为什么应该了解地球？
The Earth is believed to be about 4.5 billion years old. 地球被认为大约有45亿年的历史。
The Earth is home to all living things. 地球是所有生物的家园。
What amazing facts do you know about the Earth 你知道哪些关于地球的惊人事实？
What problems is the Earth facing 地球正面临着哪些问题？
What can we do to protect the Earth 我们能做些什么来保护地球？
Reading Reading
短语： 短语：
freezing cold 极冷的
near the equator 在赤道附近
North and South Poles 南北两极
high mountains 高山
deep sea 深海
provide ... with ... 为……提供……
what’s more 更重要的是
take care of 照顾；照料
句子： 句子：
The Earth is an amazing planet! 地球是一颗惊人的行星！
Some places are very hot, like the areas near the equator. Some are freezing cold, like the North and South Poles. 有些地方非常炎热，比如赤道附近的区域。有些地方极冷，比如南北两极。
There are fields and mountains, rivers and seas, forests and deserts. 地球上有田野和山脉、河流和海洋、森林和沙漠。
The tallest trees in the world can reach over 100 metres in height. 世界上最高的树高度能超过100米。
The Earth is home to millions of animals. 地球是数百万动物的家园。
The Earth provides us with all the things we need, such as food, water, air and energy. 地球为我们提供了所有我们需要的东西，比如食物、水、空气和能源。
Let’s explore, learn about and take care of our home. 让我们探索、了解并照顾我们的家园。
Grammar&Word power Grammar&Word power
短语： 短语：
there is / are ... 有……
recyclable waste 可回收垃圾
residual waste 残余垃圾
food waste 厨余垃圾
hazardous waste 有害垃圾
Beach Clean-up Day 海滩清洁日
end up in 最终进入；到头来
句子： 句子：
There is more and more plastic pollution in the sea. 海洋里的塑料污染越来越多。
There are many bottles and plastic bags on the beaches. 海滩上有很多瓶子和塑料袋。
Is there any milk in the fridge 冰箱里有牛奶吗？
Are there any other things we can do to help 我们还有其他可以帮忙做的事情吗？
There is a lot of paper in the blue bin for recyclable waste. 蓝色的可回收垃圾桶里有很多纸。
There are some plastic bags in the black bin for residual waste. 黑色的残余垃圾桶里有一些塑料袋。
Integration Integration
短语： 短语：
turn desert into forest 把沙漠变成森林
sandstorms 沙尘暴
national nature reserve 国家级自然保护区
Champions of the Earth award 地球卫士奖
UN Environment Programme 联合国环境规划署
cross-curricular connection 跨学科连接
produce clean energy 产生清洁能源
weathercock 风向标
句子： 句子：
Saihanba has turned from a desert into a forest thanks to three generations of forest workers. 多亏了三代林业工作者，塞罕坝已经从沙漠变成了森林。
The forest helps provide the capital with clean water, and there are fewer sandstorms in the Beijing area now. 这片森林帮助为首都提供了干净的水，现在北京地区的沙尘暴也变少了。
Air has no smell and no taste, but we can feel it when the wind blows. 空气没有气味也没有味道，但刮风时我们能感觉到它。
A weathercock can tell us where the wind is blowing from. 风向标能告诉我们风是从哪个方向吹来的。
Windmills provide people with electricity. 风车为人们提供电力。
We only have one Earth, so we must try our best to protect it. 我们只有一个地球，所以我们必须尽力保护它。
Making a fact file about Earth protection helps us learn more about how to save our planet. 制作一份地球保护事实档案有助于我们更多地了解如何拯救我们的星球。

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