Wonderful clone of Chinese in 8th grade in 17 lessons

2.Find sentences from the text that express the rigorous, realistic, and persevering attitude and spirit of scientists.

I don't see it, think about it and you can solve a lot of problems by making another one.

……Use a very fine pipette to remove the nucleus from the egg cell. ......It is immediately fed into the egg cells of the 'Scottish Spine Spine Sheep' from which the nucleus was removed. ......The embryo is then cleverly implanted into the womb of another ewe. ”

"Dolly" is the world's first case of using somatic cells to infiltrate epithelial cells in the mammary gland through nuclear transplantation technology, under complex manual operations, obtained from a small sheep.

The first: to interpret.

Second: make comparisons.

Third: give examples.

Here are some illustrated methods::

There are many ways to explain things and things, and there are seven main ways to explain things and things in expository essays.

Definition: Also known as the definition method. Sometimes, in order to highlight the main content and main problems of things, things are often defined in concise and concise words, so that the reader has a clear idea of the object being explained.

For example, in the article "Coordination Method", the author uses the defined explanatory method to define the coordination method: "The coordination method is a mathematical method for arranging the work process. "The language is concise, to the point, and to the point.

Column numbers: Also known as numerical illustration. Sometimes, in order to explain the characteristics of things quantitatively, some numbers are often used to explain them accurately and scientifically.

For example, the text in the article "The Dead Sea Does Not Die" illustrates the length, width, and depth of the Dead Sea. In the article "The Majestic Great Hall of the People", a series of figures are also used to illustrate that the solemn Great Hall of the People is one of the most magnificent buildings in the capital.

Comparison: Also known as comparative illustration. In order to illustrate something abstract or something that is relatively unfamiliar to people, comparing it with something concrete or familiar to everyone can often enhance the effect of explaining things.

For example, in the article "The Majestic Great Hall of the People", in order to illustrate the floor area of the banquet hall, the author uses the method of comparison: "The banquet hall with 5,000 seats is a different scene. With an area of 7,000 square meters, it is larger than a football field, and the elaborate design is rare.

Analogy: It is also called figurative illustration. Using well-known things as analogies can make the things to be explained concrete and vivid, and help people understand the characteristics of the things being explained.

For example, at the beginning of the article "Chinese Stone Arch Bridge", it is written: "The piers of the stone arch bridge are arc-shaped, like rainbows. This analogy captures the character of a stone arch bridge at once.

Examples: Also known as illustrations. It is to use the method of enumerating facts to explain more complex things or abstract things concretely, clearly, and easily understandable.

For example, in the article "Marching to the Desert", the Xinjiang Construction Corps and the sand barren areas of Inner Mongolia are cited as successful examples of desertification control, showing that "the desert can be conquered".

Categorization: Also known as categorical illustration. To explain the characteristics of things, it is often difficult to explain them from one side, and things can be divided into several categories according to the similarities and differences in their shape, nature, cause, function, and other attributes, and then explain them one by one according to the categories.

In the use of the categorical method, it is necessary to explain different aspects of things and things separately according to certain standards.

Citation: Also known as citation explanatory method. Quoting some literature, poems, sayings, and famous quotes can make the explanation more convincing. For example, the article "Chinese Stone Arch Bridge" quotes the words of Zhang Jiazhen in the Tang Dynasty, showing that the design and construction of the Zhaozhou Bridge are ingenious.

Example Sub Compare Example Sub.

1 What methods of explanation did the authors use to illustrate "what cloning is"? A: To illustrate "cloning", three methods of explanation are used:

Examples, paraphrasing, and quotes. Examples: Give examples that are familiar to people in the plant and animal kingdoms to illustrate the difficult scientific knowledge in a concise and easy-to-understand way; Interpretation:

traceability and interpretation of the term cloning; Citation: The story of Sun Wukong plucking a handful of monkey hair and conjuring a large group of monkeys in "Journey to the West" vividly illustrates what "cloning" is all about. 2 What is the order of instructions in the section "Before and after the birth of the cloned crucian carp"?

Why don't you write "Kron's Experiment and Ascension" in chronological order? What are the benefits of this arrangement? A:

Before and after the birth of the crucian carp", the section explains the arrangement of the order and shows the author's writing skills. There are two threads in this section: first, from China's "cloning experiments" to foreign countries' "cloning experiments," this arrangement highlights the achievements and contributions of Chinese scientists in cloning research; The second is to write about the "cloning experiment" from fish, amphibians, to mammals, which reflects that the scientists' "pursuit of science is endless" and is a process of continuous exploration, and at the same time, it also provides a scientific basis for the birth of the following "cloned sheep 'Dolly'" and paves the way for the writing.

3 Why did the birth of the "cloned sheep" cause a "sensation" around the world? Answer: The birth of the cloned sheep caused a sensation in the world, and the main reason is Yinxiao shouting two

First, it marks a new advance and a major breakthrough in cloning research, and "this result proves that so-called highly differentiated cells in the animal body, which perform the special functions of the edge field and have a specific form, have the same potential to develop into a complete individual as a fertilized egg." In other words, animal cells, like plant cells, are totipotent.

Second, it can be a blessing to mankind or a bad omen for mankind, that is, it can bring benefits to mankind or cause harm to mankind. 4 In what ways does the text write that cloning is beneficial to humanity? A:

The text focuses on three aspects of cloning for the benefit of humanity. First, cloning can be an effective way to breed "high value-added livestock"; second, cloning can be used to save rare animals; Third, cloning is of great significance for the prevention and treatment of human diseases and the extension of life expectancy.

1 To illustrate "cloning", the author uses three methods of explanation: examples, paraphrasing, and citations. Example:

Give examples that are more familiar to people in the plant and animal kingdoms to illustrate, and explain the difficult scientific knowledge concisely and easily understandable; Definition: Traceability and interpretation of the term cloning; Citation: The story of Sun Wukong plucking a handful of monkey hair and conjuring a large group of monkeys in "Journey to the West" vividly illustrates what "cloning" is all about.

2 The section "Before and After the Birth of the Clone Crucian Carp" explains that the arrangement of the order reflects the author's writing skills. There are two threads in this section: first, from China's "cloning experiments" to foreign countries' "cloning experiments," this arrangement highlights the achievements and contributions of Chinese scientists in cloning research; The second is to write about the "cloning experiment" from fish, amphibians, to mammals, which reflects that the scientists' "pursuit of science is endless" and is a process of continuous exploration, and at the same time, it also provides a scientific basis for the birth of the following "cloned sheep 'Dolly'" and paves the way for the writing.

3 The birth of the cloned sheep caused a sensation in the world for two main reasons: first, it marked a new progress and a major breakthrough in cloning research, and "this result is a mock-up of the fact that the so-called highly differentiated cells in the animal body that perform special functions and have a specific morphology have the same potential ability to develop into a complete individual as a fertilized egg."

In other words, animal cells, like plant cells, are totipotent. "The second is that it can be either a blessing to mankind or a bad omen for mankind, that is, it can be both a blessing for humanity and a harm to humanity.

4 The text focuses on three aspects of cloning's benefits to mankind. First, cloning can be an effective way to breed "high value-added livestock"; second, cloning can be used to save rare animals; Third, cloning is of great significance for the prevention and treatment of human diseases and the extension of life expectancy.

I think the way to learn Chinese is to write boldly. Never to the meeting. The most taboo is empty.

Examples, interpretations and citations.