14 If the history of the earth is condensed into one hour, to the last 15 minutes, the powder of lif

C analysis According to the word "square" in "life Fang debuts", it can be seen that the key to this sentence is to indicate that the emergence of life on earth is quite late, so choose item C.

Huatu Famous Teacher's Comment This question is a question of literary inference, which is not very difficult, and the whole paragraph is intended to illustrate the late appearance of life through metaphors.

58 minutes translates to 5 billion years of the earth's history, which is about 100 million years ago... The Earth was much the same as it is today ... Choose C

a.The history of the earth is very longLife on Earth appeared quite late.

After the formation of the Earth in the universe 6 to 2, it was inanimate at the beginning. After the long chemical and 8 chemical evolution of the long 4 of the s x segment 5, the organic elements of hydrogen and carbon in the large e gas 6 and 3 are hydrogen, carbon, nitrogen, oxygen, sulfur, phosphorus, etc., under the action of various energy sources in nature (such as lightning, ultraviolet rays, cosmic rays, fire 2 mountain Q eruptions, etc.), and the organic components of 5 sub-z (such as methane, 2 carbon oxide, 8 carbon oxide, 1 carbon oxide, 1 hydrogen, 7 hydrogen sulfide, ammonia, phosphoric acid, etc.) are synthesized. These organisms are synthesized in 1 step by 1 step and become biological monomers (such as amino acids, sugars, adenosin and nucleotide acid, etc.).

These biomonomers are further polymerized in one step to become biopolymers. Such as proteins, polysaccharides, nucleic acids, etc. This g-segment process is called chem6 phytoevolutionary 2.

Scientists have confirmed that these two phases can be achieved in the primordial ocean environment25. And proteins, polysaccharides, nucleic acids and other large m divided into 3 sub c organic matter and e after a long 0 years 8, after complex evolution, finally w produced the most primitive life.

ny【T long QO pass LR S

Option C, the emergence of life on Earth is quite late.

If the earth's 4.6 billion years are condensed into one day, then what will happen to the earth? What will happen to human civilization?

At 0:00 a.m., with the explosion of the universe in an instant, the entire solar system came into being.

At this moment, the primordial earth is also emerging from the extinction. At 0:11, a planet called Pypantya, and the Earth accidentally collided due to a trajectory problem, and due to this collision, the Earth was almost destroyed directly.

The debris from the explosion formed the moon. At 1:50 a.m., there was a 20-second rainstorm on Earth, and the ocean was formed.

Since then, the earth has been blue.

At 3 o'clock in the morning, countless cosmic meteorites bombarded the earth. But the earth did not refuse, and then the land appeared.

At 10:20 a.m., plants learn to photosynthesize, and the young earth is about to emerge.

At 5:15 p.m., under the hot and terrifying volcano, multicellular organisms quietly appeared.

At 21:10 in the evening, at this moment, the Cambrian biological explosion occurred, and countless biological mothers accumulated thick and thin.

From 21:30 to 23:00, during this period of time, there were four spectacular biological reshuffles on the earth one after another, and all living beings were tragically destroyed.

An unidentified asteroid with a diameter of 10 kilometers collided with the Earth, and the century of dinosaurs lasted for an hour.

At 23:59:12, a highly intelligent person appeared. And 33 seconds after appearing, he successfully comprehended the skill of cooking with fire.

At 23:59 minutes and seconds, human civilization was born, and with this only second, it created the brilliant human world today.

C Analysis According to the word "Fang" in "Life Fang Powder Debut", it can be seen that the key to this sentence is to indicate that the time of the emergence of life on earth is quite late, so item C is chosen.

Huatu Famous Teacher's Comment This question is a question of inference that the meaning of the text is rotten, and the difficulty is not high, and the whole paragraph is intended to illustrate the late appearance of the life hunger state through metaphors.

c. As long as you know the time, it is easy to choose the correct answer. If the history of the earth is 1 hour, it will be 15th

Life only appeared in the minute and animals in the sixth minute, so it can be seen that this passage indicates that life on Earth appeared quite late.