Summary of key knowledge points of grade two

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Knowledge points are relatively independent minimum units that constitute the skills required by students. Next is a summary of the key knowledge points of the second grade sorted out for you by my editor. I hope it will be helpful to you.

1、 Rhetorical questions and declarative sentences

Sometimes, rhetorical questions and declarative sentences can be changed into rhetorical questions or rhetorical questions into declarative sentences for the purpose of expression. They have the same meaning but different moods.

(1) Rhetorical questions change into declarative sentences

1. First, delete the rhetorical questions (how, how, where, etc.), and some

sentence

It is appropriate to add "very" and "all" to make

sentence

The expression is more accurate.

2. Look

sentence

If there is a negative word "no" in it, some will be deleted and others will be added.

3. In rhetorical questions, delete "?" and change ".".

practice:

1. How can we forget the teacher's Chunchun teaching? 2. Isn't the spray playing a joyful song?

We can't forget the teacher's Chunchun instruction. The spray is playing a joyful song.

3. The scenery here is so beautiful, how can we not linger back and forth?

The scenery here is so beautiful that we linger here and there.

4. Do you want your mother to worry about such a small thing? 5. In the world, where is there no beautiful shadow of wild flowers?

Don't worry about such a small matter. All over the world, there are beautiful images of wild flowers everywhere.

6. Didn't you watch the game?

7. Don't you go to PE class? (Ask questions and change statements)

8. You watched the game. You go to PE class.

(2) A declarative sentence becomes a rhetorical question

1. First, add rhetorical questions (how, how, where, etc.), some

sentence

It is appropriate to add "very" and "all" to make

sentence

The expression is more accurate.

2. Look

sentence

If there is a negative word "no" in it, some will be deleted and others will be added.

3. Add "." to the rhetorical particle.

practice:

1. We can't take part in sports because of the heavy study task.

How can we not take part in sports activities because of the heavy learning task

2. This picture was painted by Caiying in our class.

(Isn't this picture painted by Caiying in our class?)

3. Our parents brought us up through hardships. We should not break their hearts.

(How can we break their hearts when our parents brought us up through hardships?)

4. We can't ignore the phenomenon of a few students breaking discipline.

(How can we ignore the phenomenon of a few students' disobedience?<Can we ignore it?>)

2、 Exchange exercise of dialogue and reporting: (direct speech to indirect speech)

1. Grandfather said to Xiaoying, "I tell you, this is the most famous flower in China."

(Grandfather tells Xiaoying that it is the most famous flower in China.)

2. Zhang Qiang smiled and said to his mother, "Li Ming is ill today. I will help him with his homework."

(Zhang Qiang smiles and tells his mother that Li Ming is ill today. He goes to help Li Ming with his homework.)

3. Teacher Li excitedly said: "Our class defeated Class 4 (1) and won the championship."

(Teacher Li excitedly said that his class defeated Class 4 (1) and won the championship.)

4. Teacher Wang said to Xiaohua, "I have sewed your schoolbag."

(Teacher Wang tells Xiaohua that he has sewed Xiaohua's schoolbag.)

5. My father said, "I'm going to Kunming tomorrow. You can cook for yourself."

(Dad said that he would go to Kunming tomorrow and let me cook by myself.)

6. Dad said, "Don't play tomorrow. I'll take you there.

("Dad said, let me stop playing tomorrow. He took me to work.)

A smart smile 2024-04-19 12:52:56

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Top ranking generally refers to the top

Ranking top does not always refer to the top. Ranking top is an idiom in Chinese. It originally meant that when the troops of the ancient Chu State marched, if the outpost met the enemy's situation, they would give a warning. Later, "Ranking top" literally meant ranking first, describing excellent performance. Its own structure is subject predicate, which can be used as predicate, attribute and commendatory in sentences. From the Twelve Years of Zuo Zhuan Xuangong written by Zuo Qiuming in the Spring and Autumn Period: "As the ruler of the State of Chu, he chose the order and code of the State of Chu for military conduct, right shaft, and left pursuit of production. He had no foresight, power, and stamina. All officials moved like objects, and military and political affairs were not disciplined, so he could use the code."
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Emphasize sentence structure and usage

Emphasize the structure and usage of sentence patterns. For example, emphasize that sentence patterns refer to present or future situations. Use It is to refer to the past. Use It was
For example:
It is I who, that am wrong
Basic definition: The emphatic pattern is a kind of rhetoric, which is a form used by people to express their will or emotion. Emphasize a certain part of the sentence in various ways to play a rhetorical role. The commonly used emphasis structure in English is It is (was)+the stressed part (subject, object or adverbial)+who (that).... Generally speaking, when the stressed part refers to people, when the who refers to things, it uses that, but that can also refer to people. In American English, which is often used instead of that
Common sentence patterns:
1. The emphatic sentence pattern of declarative sentences:
It is, was+emphasized part (usually subject, object or adverbial)+that/who (when emphasizing subject and subject refers to person)+other parts.
It was yesterday that he met Li Ping
2. The emphatic sentence pattern of general questions:
Same as above, just mention is and was before it.
Example: Was it yesterday that he met Li Ping
3. The emphatic sentence pattern of special questions:
The emphasized part (usually interrogative pronoun or interrogative adverb)+is, was+it+that, who+other parts.
Example: When and where was it that you were born

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Sun Jing was a native of Xindu (today's Jizhou District, Hengshui City) in the Han Dynasty. He was eager to learn at a young age, learned extensively and memorized well, and regarded books as his life. Reading and studying at night often stay up all night. The neighbors called him "Mr. Closer".
When Sun Jing was reading, he kept taking notes at any time. He often saw it in the second half of the night. As time went by, he sometimes fell asleep. When I woke up, I felt regretful again. One day, when he looked up and pondered, his eyes stopped on the beam of the room, and suddenly his eyes lit up. Then he found a rope, one end of which was tied to the beam, and the lower end was tied to his hair. In this way, whenever he is tired and sleepy and wants to doze off, as long as his head is lowered, the rope will suddenly pull his hair, and a pain will wake him up and drive away the drowsiness. From then on, he used this method to study hard every night. Years of hard work enabled Sun Jing to read poetry and become a knowledgeable scholar. At that time, he was quite famous north of the Yangtze River and Huaihe River, and students from thousands of miles often came to him to learn and discuss knowledge.

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In general physical problems (not involving the excited ionization of electrons, chemical reaction and nuclear reaction), only the molecular kinetic energy and potential energy will change in the internal energy. At this time, we only care about these two parts, and define the sum of these two parts as internal energy. This is a simplified definition, namely internal energy in a narrow sense. When it comes to excited ionization of electrons, chemical reaction and nuclear reaction, in order not to cause misunderstanding, internal energy in the narrow sense should be strictly called thermodynamic energy (formerly called heat energy, which is still widely used in some engineering fields).
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