Review and Expansion 5 of Class Workbook Volume 2 of Primary School Chinese Language for Grade 6, What’s the Answer? Hurry, hurry, hurry! ! !

1. Analysis of the field of donation birth: tenacious erosion, weakness, retreat, milestones, counterclockwise, fruitful, commonplace, trivial knowledge

2. Cross out: first, second, second, first, second second second first first second first

3. Silence, reputation lasting forever, suffering, perseverance and abandonment

4. Facing difficulties, brainstorming and collective efforts Don’t be ashamed to ask your subordinates and draw inferences, express your own opinions, be original and seek truth from facts

5. Dedicate yourself to science, be indifferent to fame and fortune, be firm, resolute, ambitious and persistent in pursuit

Love the motherland, unite and cooperate, silently contribute, be brave in exploration, and persevere

Be good at observation, constantly solve doubts, and persevere in pursuing the root cause

You must have the ability to think independently, the ability to judge independently, and the spirit of scientific skepticism

6. Regardless of Whenever, no matter what the situation, I will never allow myself to be even a little discouraged.

----- Edison

Mountain Tai does not allow soil, so it can become as big as it is; rivers and seas do not accept small streams, so it can become deep.

----- Li Si

If you persevere, the rotten wood will not break; if you persevere, the metal and stone can be carved.

------ "To the end of the world", this is the first state; "The clothes are getting wider and wider, but I don't regret it, because of Yi's disappearance, people are haggard", this is the second state; "The crowd has searched for him thousands of times, but suddenly looking back, that person is there in the dim light. "This is the third realm."

----- Wang Guowei

Of course, a person must think carefully before doing something; but after the plan or policy has been set, he must determine the goal and move forward. Then there is the attitude of hesitation, this is the attitude of perseverance.

----- Zou Taofen

VII. 1) Correction of crossed out calculations

(2) "Star" refers to "The Theory of Stacked Prime Numbers" written by Hua Luogeng "; "dust" refers to a calculation error in the book.

(3) He is right, this teacher is really a talent!

(4) Hua Luogeng: Good at discovering talents

Chen Jingrun: Dare to put forward his own opinions

8. About 200 years ago, a man named Goethe Bach's German mathematician proposed that 'any even number can represent the sum of two prime numbers', referred to as 1+1. He never proved it in his life, so he wrote to Euler, a mathematician in St. Petersburg, Russia, asking him to help prove this difficult problem. After Euler received the letter, he began to calculate. He racked his brains and couldn't prove it until he passed away. Afterwards, Goldbach passed away with a lifetime of regrets, but left behind this mathematical problem. For more than 200 years, the mystery of Goldbach's conjecture has attracted many mathematicians, making it a major unsolved problem in the world of mathematics." To use an interesting metaphor, mathematics is the queen of natural sciences, and "Goldbach's conjecture" is The jewel in the Queen's crown!

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