Knowledge points in the second volume of the second grade of primary school (Chinese, mathematics, English)

#二级# Introduction: Learn to integrate knowledge points. Classifying the information you need to learn and the knowledge you need to master into mind maps or knowledge point cards will keep your brain and thinking organized, making it easier to remember, review, and master. At the same time, you must learn to connect new knowledge with already learned knowledge, and constantly integrate and improve your knowledge system. This can promote understanding and deepen memory. The following is the relevant information compiled by "Knowledge Points of the Second Volume of the Second Grade of Primary School (Chinese, Mathematics, English)". I hope it will help you.

Part 1 Knowledge points for the second volume of the second grade of primary school (Chinese) 1. Review text:

1. The name of Sun Moon Lake is based on its (shape characteristics) - small island The lake is divided into two halves. The northern side is like a round sun and is called Sun Pool; the southern side is like a crescent moon and is called Moon Pool.

2. Why do the Dai people think that the Water Splashing Festival in 1961 is an unforgettable day? (Because the beloved Premier Zhou Enlai spent this Water Splashing Festival with them, they think this water splashing day is very unforgettable.)

3. Why is Grape Valley really a good place? (Because there are not only grapes there, but also hard-working, brave, hospitable Uighur fellow villagers, so Grape Valley is really a good place)

2. Recite:

1. There are many parks in Beijing, including (Summer Palace), (Old Summer Palace), (Temple of Heaven), (Beihai), (Jingshan), (Fragrant Hill)... Beijing has world-famous ancient buildings (Great Wall), (Forbidden City), as well as modern buildings (Great Hall of the People), (National Library), (China Millennium Monument), (Capital International Airport)...

< p>2. Beautiful sentences (written from memory):

(1) In (autumn), bunches of grapes are hanging under (green leaves), including (red), (white), (Purple), (Dark Red), (Light Green), (Colorful), extremely beautiful.

(2) If it starts to drizzle, Sun Moon Lake seems to be covered with gauze, and the surrounding scenery is hazy, like a fairyland in a fairy tale.

(3) Premier Zhou held a silver bowl filled with water in one hand and a cypress branch in the other hand, dipped it in the water, sprinkled it on people, and blessed them.

3. Review "My Discovery" on page 54: Photography - Camera Sprinkling - Water Truck Stamp Collection - Stamp Album Books - Library TV - TV Station Plane - Airport Swimming - Swimming Pool Football - Football Field

4. Our country is a multi-ethnic country, with fifty-six ethnic groups including (Han), (Hui), (Tu), (Bai), (Miao), and (Zhuang). Our country has four municipalities (Beijing), (Shanghai), (Tianjin) and (Chongqing), two special administrative regions (Hong Kong) and (Macau), (Henan), (Hebei), (Guangdong), (Guangxi), ( Shandong), (Shanxi), (Hunan), (Hubei), (Taiwan) and other (twenty-eight) provinces and autonomous regions.

3. Polyphonetic characters:

成 chéng (to hold rice) 　Shèng (to bloom)

台dǎo (to close down) 　dào (to reverse)

< p> Province shěng (saving) xǐng (reflection)

nail dīng (nail) dìng (nail)

fen fēn (respectively) fèn (moisture)

gan gān (clean) gàn (work)

empty kōng (sky) kòng (open space)

for wéi (for people) wèi (because)

Jiangxiáng (surrender) Jiàng (land)

Go gōu (outline) gòu (activity)

Single dān (unit) shàn (surname Shan) chán (Chan Yu)

4. Fill in the blanks:

1. Fill in the appropriate verbs:

(produce) fruits (put up) arbors (pick) grapes

(Sail through) (draw) the outline of the river (beat) the drum

2. Fill in the appropriate modifiers

(Beautiful) Island of (Beautiful) Motherland (Beautiful) The (beautiful) turrets of Beijing

The (round) sun (curved) the moon (bunches) the grapes (flowing) air

(dear) Prime Minister (bright red) carpet (cheerful) drumbeat (ancient) Forbidden City

(long) city wall (green) pergola (bright) showcase (tall) building

The (world-famous) buildings (colourful) neon lights (thin) fog

(Clearly) show the (hospitable) fellow villagers

5. Synonyms:

Surround - (surround) Clear - (clear)

Show - (appear) Beautiful - (beautiful)

Surround - (all around) Dense - (luxuriant) )

Famous—(famous) Together—(together)

Bless—(wishes) Respect and love—(respect)

Like—(like) Decorate—( Dress up)

Beautiful—(beautiful)

6. Antonyms:

Young—(ancient) Prosperity—(depression)

Enthusiasm — (cold) Success — (failure)

Strong — (weak) War — (peace)

Proud — (humble) Lively — (deserted)

Progress—(backward) Dark—(bright)

Blurred—(clear) Smiling—(scowl)

Clear—(blurred) Thick—(thin) Add — (subtract)

Straight — (curved) Cold — (hot) True — (false) Sweet — (bitter)

Rise — (fall) Cry — (laugh) Good — (Evil) Poor - (rich)

Noble - (low) Inner - (outer) Wide - (narrow) Strong - (weak)

Victory - (defeated) Deep - ( Shallow)

7. Quantifiers:

One (a) lake, one (a) pergola, one (a) dragon boat, one (string) fireworks, one (a) headscarf

< p>One (only) elephant foot drum, one (way) rainbow, one (beam) light, one (one) nation, one (overpass)

Chapter 2 Knowledge points of the second volume of the second grade of primary school (mathematics) No. 1 Unit data collection and organization

1. Use the method of drawing straight characters to collect data.

2. Use statistical charts to represent the data.

3. Some judgments can be made based on statistical charts.

4. Data collection--arrangement--analysis form.

Unit 2 Division within the table (1)

1. Average score

1. The meaning of average score: divide some items into several parts, each part Dividing the same amount is called an average split.

2. Method of dividing equally:

(1) When dividing some items equally into designated portions, you can divide them one by one or several pieces. Divide until all is divided.

(2) Divide some items equally into several portions. When dividing, you can think: this number can be divided into several such portions.

2. Division

1. The meaning of division formula: As long as it is the process of averaging, it can be expressed by division formula.

2. How to read the division formula: usually read from front to back, read as divide, = as equal, other readings remain unchanged.

3. The names of each part of the division formula: In the division formula, the number before the division sign is the dividend, the number after the division sign is called the divisor, and the resulting number is called the quotient.

3. Use the multiplication formula of 2 to 6 to find the quotient

1. The method of finding the quotient:

(1) Use the average score method to find the quotient.

(2) Use multiplication equations to find the quotient.

(3) Use multiplication formulas to find quotients.

2. When using the multiplication formula to find the quotient, think about the divisor and the dividend of the multiplication.

IV. Solve the problem

1. Methods to solve the problem of average score:

The total number of copies = the number of copies, the total number of copies = the number of copies , dividend = quotient divisor,

Dividend = quotient divisor + remainder, divisor = dividend quotient, factor factor = product,

One factor = product of another factor

2. A two-step calculation method of multiplication and division to solve practical problems:

(1) The problem requires finding the total number and calculating by multiplication;

(2) The question asked The problem requires finding the number of copies or the number of copies and calculating by division.

Unit 3 Movement of Figures (1)

1. Axisymmetric figures: fold in half along a straight line, with both sides completely overlapping. A figure that can completely overlap after being folded in half is an axially symmetrical figure, and the straight line where the crease is located is called the axis of symmetry.

Chinese characters that form axially symmetrical figures:

One, two, three, four, six, eight, ten, big, dry, abundant, soil, scholar, middle, field, by , Jia, Shen, mouth, day, day, wood, eye, forest, valley, forest, painting, umbrella, king, person, non, Philippines, day, code, dian, drought, spring, mu, eye, mountain, single , kill, beauty, spring, product, work, sky, net, return, joy, mo, sin, husband, black, li, ya.

2. Translation: When an object moves horizontally or vertically, and the direction of the object does not change, this movement is translation. Only figures with exactly the same shape, size, and direction can overlap each other through translation.

3. Rotation: The phenomenon of an object performing circular motion around a certain point or axis is rotation.

Unit 4 Division in Tables (2)

1. Use the multiplication formulas of 7, 8, and 9 to find the quotient

Method of finding the quotient: Think of the divisor ( ) = dividend, and then calculate the quotient according to the multiplication formula.

2. Solve problems

Use division to find out how many digits there are in a number, how many equal parts a number is divided into, and how much each part is.

Unit 5 Mixed Calculation

1. Mixed Calculation

For mixed calculations, multiply and divide first, then add and subtract. If there are parentheses, calculate what is inside the parentheses first. Only addition and subtraction or only multiplication and division must be calculated in order from left to right.

2. Solve practical problems in two-step calculation

1. Think about what problem to solve first and what problem to solve next.

2. You can draw pictures to help analysis.

3. It can perform distributed calculations or list comprehensive calculation formulas.

Unit 6 Division with Remainder

1. Division with Remainder

1. The meaning of division with remainder: When dividing some objects equally, Sometimes there is a surplus.

2. The relationship between the remainder and the divisor: In division with a remainder, the remainder must be smaller than the divisor. The remainder is less than the divisor 1, and the smallest remainder is 1.

3. The calculation method of pen arithmetic division:

(1) Write the division sign first

(2) The dividend is written in the division sign, and the divisor is written in to the left of the division sign.

(3) Test the quotient. The quotient is written above the dividend and must face the ones digit of the dividend.

(4) Write the product of the quotient and the divisor below the dividend, and the same digits must be aligned.

(5) Subtract the product of the quotient and the divisor from the dividend. If there is no remainder, it means that it can be divided completely.

4. The calculation method of division with remainder can be divided into four steps: one quotient, two multiplication, three subtraction and four ratio.

(1) Quotient: That is, test the quotient. If the divisor is multiplied by a number that is closest to the dividend and smaller than the dividend, then the quotient is a number, written above the ones digit of the dividend.

(2) Multiplication: Multiply the divisor and the quotient, and write the result below the dividend.

(3) Subtraction: Subtract the product of the quotient and the divisor from the dividend, and write the difference below the horizontal line.

(4) Ratio: Compare the remainder and the divisor. The remainder must be smaller than the divisor.

2. Solving problems

According to the meaning of division, to solve simple division problems with remainders, the remainders must be handled flexibly according to the actual situation.

Unit 7: Understanding numbers within ten thousand

1. Understanding numbers within 1,000

1. Ten hundred is one thousand.

2. When reading, read from the high position. The hundreds digit is hundreds, the tens digit is tens, and the ones digit is a 0 in the middle. It is read as zero. No matter how many 0s there are at the end, it is not read.

3. When writing numbers, start from the high position. For hundreds, write the number in the hundreds place. For tens, write the number in the tens place. For ones, write the number in the ones place. If there is no previous digit, write 0 as a placeholder.

4. The composition of numbers: Look at the number of each digit, and it consists of several such counting units.

2. Understanding of numbers within 10,000

1. 10 thousand is ten thousand.

2. The reading and writing methods for numbers within ten thousand are the same as the reading and writing methods for numbers within 1,000.

3. The minimum two-digit number is 10, and the two-digit number is 99; the minimum three-digit number is 100, and the three-digit number is 999; the minimum four-digit number is 1000, and the four-digit number is 9999 ;The smallest five-digit number is 10000, and the smallest five-digit number is 99999.

3. Addition and subtraction of whole hundred and whole thousand

1. Calculation method of addition and subtraction of whole hundred and whole thousand.

(1) Think of hundreds and thousands as hundreds and thousands, and then add and subtract them.

(2) First add and subtract the numbers before 0, and then add the same number of 0s as the number of hundreds or thousands at the end of the resulting number.

2. Estimation

Treat the number as its approximate number and then calculate.

Unit 8 Grams and Kilograms

Grams and kilograms are internationally accepted units of mass. When measuring the mass of lighter items, grams are usually used. When measuring the mass of heavier items, kilograms are usually used as the unit.

1 kilogram = 1000 grams, 1 kilogram = 1 kilogram, 1 kilogram = 2 kilograms, 1 kilogram = 500 grams,

1 kilogram = 10 taels, 1 tael = 50 grams< /p>

To estimate the weight of an item, you should consider the size, texture and other factors of the item.

Unit 9 Mathematics Wide Angle

Part 3 Knowledge Points for Second Grade Primary School Volume 2 (English) Module 1:

Key Vocabulary

1. weather weather

2.like, like

3.sunny sunny, sunny

4.windy windy, windy

5.take belt, take

6.cap (brimmed) hat

7.street street

8. rain rain; rain

9.snow snow

10.sofa sofa

11.ski skiing

Key sentences

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1. What's the weather like? How is the weather?

It’s hot and sunny. It’s hot and sunny.

2. - Is it windy? Is it windy?

No, it isn’t.

3. - What do you like doing in spring? What do you like to do in spring?

I like flying kites. I like flying kites

4. Oh no! It’s raining now! Oh no! It's raining now!

Situational communication

1. Can use the sentence pattern "-What's the weather like (+ other)? -It's...ask and answer the weather conditions

2. Be able to use the sentence pattern "What do you like doing in + seasonal noun?" "Ask the other person what they like to do in a certain season, and answer with "I like + verb -ing form + other." to express what you like to do in a certain season.

Module2:

p>

Key words

1. radio; radio program

2. photo

3. newspaper

4.little young, young

5.camera

6.smile

7.draw painting

8.picture; photo

9.write

10.letter

11colour color...

Key sentences< /p>

1. That's your mother. Yes, it is, She's listening to the radio. Yes, she is listening to the radio.

2.I like drawing. I'm drawing a panda.

Oh, it's not a panda. .

3. Look at my picture. This is my father. He's listening to the radio.

Look at my picture.

Situational Communication

1. Be able to use the sentence pattern “This is/That’s…” to point out someone (thing).

2. Be able to use the sentence pattern "subject + am/is/are + verb present participle + other." to describe what someone is doing with the help of pictures, objects or the teacher.

Module3:

Key words

1. Tidy tidying up and tidying up

2.room room

3. do, do

4.homework

5.sleep

6.secret

7. card greeting card

8.flower

9.science

10.today

Key sentences

1.-Oh, he's doing his homework.

No, he isn’t doing his homework. He’s sleeping No, he isn’t doing his homework. He is sleeping

2.- Are you tidying your room now? Are you tidying up your room now?

Yes, I am.

3.- Is he doing his homework? Is he doing his homework?

No, he isn't. No, he doesn't

Situational communication

1. Be able to use "subject + be(am/is/are)/" be(am/is/are)not+verb present participle+other “to express what someone is doing or not doing.

2. Can use "ls/Are+subject+verb present participle+other?" to confirm whether someone is doing something now.

Module4:

Key words

1.call, call

2.noise, sound

< p>3.drink drink, drink

4.talk talk, talk

5.five-stones five-stone game

6.behind behind...

7.hide-and-seek

Key sentences

1.- What are you doing? What are you doing

I‘m swimming. I am swimming.

2.Are you drinking? Are you drinking something?

No, I’m not.. No, I don’t

3. What’s he doing? What’s he doing

He’s playing footballHe’s playing football

4. What’s that noise? What is that sound?

Situational Communication

1. Be able to use the sentence pattern "What+be(am/is/are)+subject+doing" to ask what someone is doing.

2. Be able to use the sentence pattern "Are you+present participle of verb+other?" to confirm whether someone is doing something.

Module5:

Key words

1.late, late

2.sad, sad

p>

3.no

4.those

5.game

6.well oh, oh, good;

7.kid

8.catch, catching; chasing game

9.hurry up quickly

10.of course< /p>

11.skip skipping rope

12.clap clap

Key sentences

1. Fangfang, are you sad? Fangfang, are you sad?

Yes, no one is playing with me. Yes, no one is playing with me.

2. Daming is hiding and Sam is seeking. Daming is hiding and Sam is seeking.

3. Those girls are playing clapping games. Those girls are playing clapping games.

Situational communication

You can use the sentence pattern "What is/are...playing?" to ask someone(s) about the name of the activity they are doing.

Module6:

Key words

1.usually usually

2.us (accusative) we

< p>3.ride

4.things, activities

5.ill sick

6.cook make (rice), cook (dish) )

7. her (accusative) her

8 kitchen kitchen

9. go shopping go shopping

Key sentences

p>

1.- I usually ride my bike. But I'm not riding it today. But I didn’t ride today.

You‘re reading a book.

2. What do you usually do? What do you usually do?

3. My mother usually cooks. But today she’s not cooking. I’m cooking for her. But today she wasn't doing it. I'm cooking for her

Situational communication

Be able to use the sentence pattern "Subject + usually..." describe what someone usually does and be able to flexibly use the j sentence pattern "But + Subject + am/is/ are not+verb present participle...+now/today." to compare with it.

Module7:

Key words

1.TV station

2.play (drama) performance

3. Say, recite aloud

4.Poem

5. Picnic

6.family

7. beach beach

8.dragon dance

9.Children's Day

Key sentences

1.It's Children ' s Day today. Today is Children's Day.

2. Daming is doing a play with some children. Daming and some children are performing a play.

3. Lingling is singing a song. Lingling is singing a song.

4. I‘m at the park with my family.

Situational Communication

You can use sentences such as “It’s Children’s Day today. /The children are very happy.” to talk about Children’s Day.

Module8:

Key words

1.hospital

2.stop

3.turn Turn around

4.turn around

5.again again

6.jump

7.back return, return

8.come back

9.hill hill

10.past pass

11. station

Key sentences

1. Look, Amy. It's going up the hill, look, Amy. It’s going down the hill. It’s going down the hill. It’s going past the house. It’s going past the house.

4.Now, it’s at the station. Now, it’s at the station.

Situational communication

Be able to use the sentence pattern “It’s going up/down/past…” to describe the change in the position of something.

Module9:

Key words

1. left to the left; the left side

2. right to the right; the right side

p>

3.road, road

4.straight, straight

5.lost

6.out, outward

7.factory factory;

8.excuse me, sorry

Key sentences

1. - Where are you Going, Sam? Where are you going, Sam

I’m going to Daming’s home. I’m going to Daming’s home.

2. Excuse me. Where’s Xihu Road? Excuse me. Where is West Lake Road?

Go straight on! Go straight!

3.Where do you live? Where do you live

I live in Apple Street. I live in Apple Street

4. Turn left//right! Turn left/right!

5. You're welcome. You're welcome

Situational Communication

1. Learn to use the sentence pattern "Excuse me. Where's...?" to ask road.

2. Learn to use sentences such as "Turn left/right! Go straight on. You go past the factory" to guide others.

Module10:

Key words

1.next to close, close

2.cousin (cousin) brother (brother or sister) )

3.supermarket

4.wrong incorrect

5.way road, route

6.turn back Go back

7.in front of in front of...

8.well completely, fully

9.taxi, taxi

10.cinema

Key sentences

1. - Where 's your home? Where is your home?

It’s next to the zoo. My home is next to the zoo.

2. You’re going the wrong way. You’re going the wrong way.

3. I’m lost.

4. It’s in front of the school. It’s in front of the school.

5. You know the city well. You know the city well.

6. He’s helping a child.

Situational Communication

Learn to use It’s next to/in front of… to describe a location.