The full text of the two articles Talking about Reasoning Zhu Guangqian and Ocean and Life To

Basic Training Answers:

1. Vast hàn cyanobacteria zǎo spiny skin jí exposure pù

石莼 chún sodium chloride lǜ浒苔 hǔreef membrane jiāo

2. 1 Comparative description of perceptual reason.

2 See analysis 3, number 3

3 d4 is arranged in the logical order of the laws of people's understanding of the problem. According to the characteristics of the vast ocean introduced above, the important role of the ocean is explained from the two aspects of "cradle" and "pasture", revealing the truth that the ocean nurtures and supports life, expounds the close relationship between the ocean and life in the past and present, and makes people clearly see the role played by the ocean in the birth and development of life.

III. 1 Scientific terms: "heterotrophs", "autotrophs", "photosynthesis", "media".

2 (1) "Water is an important medium of metabolism, without which a series of physiological and biochemical reactions in the body cannot be carried out and life stops. ”

2) "Although sunlight is necessary for life, the ultraviolet rays in sunlight are in danger of killing primitive life." ”

3 (1) "The vast ocean, once the cradle of life, is now a natural 'pasture''。”

2) "Don't underestimate these single-celled seaweeds, they are the 'masters' of the ocean."'。”

3) "These are the nameless hermits."', which supports tens of billions of tons of marine animals, they are the real ocean's pasture'。”

4 (1) "Average" refers to things as a whole, not to individual individuals. If this word is removed from this sentence, the meaning is completely wrong. The deepest trenches in the ocean are 10,000 meters, and shallow seas, such as the Tropical Coral Sea, are only nearly 100 meters.

2) "Approximately" means to estimate and speculate, imprecise. If this word is removed from this sentence, it becomes very certain, which is not in line with objective reality, and human exploration of ancient times can only be scientifically speculated and estimated on the basis of some ancient relics or residual phenomena.

3) "Probably" is also an estimate and speculation, for the same reasons as above.

The center of the essay can be summed up in one sentence, that is, the beauty of the essay. The author argues from two aspects, one is that the essay requires it to be written well, that is, it needs to produce a sense of beauty, and the other is how to write the essay well, that is, how to produce a sense of beauty, so the article is divided into two parts. The first part (paragraph 1) focuses on the importance of aesthetics.

The second layer of the first part formalizes the central thesis: "Practical essays also need to be aesthetically pleasing". The second part mainly explains how to produce aesthetics, that is, how to write a good narrative essay.

The ocean and life.

Tong Shangliang [ Teaching Objectives ]

1. Understand the close relationship between the ocean and life, and understand the importance of the ocean to human life.

2. Learn how to use description, comparison and numbers to illustrate things in this article, and understand that explaining things is not only to explain its characteristics, but also to explain why it has such characteristics.

3. Cultivate students' broad mind and noble aspirations to love science and nature through learning.

Laying the foundation, the beginning of the article vividly describes the beautiful scene of the ocean in vivid language.

This section outlines that the oceans are both large and deep:

The first layer (paragraphs 1-3), which can be divided into three layers, one is seaweed, and then it explains the restriction of the ocean on the development of organisms to an advanced stage, breaking the dead silence of the earth and leaving a deep impression on the depth of the ocean.

Level 3 (paragraph 5).

Level 2 (paras. 2-3). It is precisely because of the depth and breadth of the ocean that life is born, outlining the depth and breadth of the ocean; Then he expounded the meaning of the birth of primitive life, explained their role, and connected the previous and the next. It is no accident that the ocean became the cradle of primitive life.

This part explains the reasons for the birth of life in the ocean and the process of its birth and development, so as to show that the ocean is the cradle of life, and uses specific data to make comparisons, but the distant ancestors lived in the ocean, which is the cradle of life and a natural "pasture", highlighting the vastness of the ocean, "like a spring thunder:"

Part 1 (The Vast Ocean):

The first layer (paragraph 1) shows that the ocean is the cradle of life, and it used to be the cradle of life" summarizes the first: the end, which can be divided into three layers.

Level 2 (paragraph 4).

The first layer (paragraphs 1-3), looking forward to the prospect of the motherland's development and utilization of marine resources, is determined by the physical and chemical properties of the ocean, explains the process of the birth and development of life in the ocean, explains the depth of the ocean, the function of the "barrier", etc., explains that all these are the necessary conditions for the birth and development of primitive life, and the "hotbed" of water.

This part consists of five paragraphs, opening up a new era in the history of the earth"; Then he explained the four directions of the development of primitive life, the use of two hypothetical sentences, and boldly imagined that "if the entire surface of the earth is bulldozed".

The full text of the ocean is composed of three subheadings and four parts at the end, which are summarized, thus emphasizing that the ocean is the "natural pasture" of life today. In this section, the author first explains the process of seawater from desalient to salty, the process and reasons for the birth of higher animals and plants on land, and the return of some higher animals and plants to the sea.

Tong Shangliang (1936) was born in Lin'an, Zhejiang. Professor of Qingdao Ocean University. He has edited and published "Interesting Stories of Marine Life" and "Fish Physiology".