how life began on the earth 中的名词性从句 并划分成分 急,在线等一定要划分句子成分

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howlifebeganontheearth中的名词性从句并划分成分急,在线等一定要划分句子成分howlifebeganontheearth中的名词性从句并划分成分急,在线等一定要划分句子成分howl

how life began on the earth 中的名词性从句 并划分成分 急,在线等一定要划分句子成分
how life began on the earth 中的名词性从句 并划分成分 急,在线等一定要划分句子成分

how life began on the earth 中的名词性从句 并划分成分 急,在线等一定要划分句子成分
方式状语 :how
主语 :life
谓语 :began
地点状语 :on the earth
翻译:生命在地球上是如何产生(开始)的.

life 为主语 began谓语动词(不及物动词) on the earth 是地点 how引导整个从句
翻译为 在地球上,生命是如何开始的。

转换为陈述句,on the earth the life began,on the earth 地点状语,began 谓语,life 主语,how 感叹词

How life began on the earth
No one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory,the universe began with a “Big Bang” that threw mat...

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How life began on the earth
No one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory,the universe began with a “Big Bang” that threw matter in all directions. After that,atoms began to form and combine to create stars and other bodies.
For several billion years after the “Big Bang”, the earth was still just a cloud of dust. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so violent that it was not clear whether the shape would last or not. It exploded loudly with fire and rock. They were in time to produce carbon, nitrogen, water vapor and other gases, which were to make the earth’s atmosphere. What is even more important is that as the earth cooled down, water began to appear on its surface.
Water had also appeared on other planets like Mars but unlike the earth, it had disappeared later. It was not immediately obvious that water was to be fundamental to the development of life. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made it possible for life to develop.
Many millions of years later, the first extremely small plants began to appear on the surface of the water. They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish. Next, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others, called amphibians, were able to live on land as well as in the water. Later when the plants grew into forests, reptiles appeared for the first time. They produced young generally by laying eggs. After that, some huge animals, called dinosaurs, developed. They laid eggs too and existed on the earth for more than 140 million years. However, 65 million years ago the age of the dinosaurs ended. Why they suddenly disappeared still remains a mystery. This disappearance made possible the rise of mammals on the earth. These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.
Finally about 2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the earth. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. As a result of this, many scientists believe the earth may become too hot to live on. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
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