Xueba starts with change

Chapter 68 Countdown to College Entrance Examination



Chapter 68 Countdown to College Entrance Examination

Chen Zhou touched his head in embarrassment, and when he was thinking about how to explain, he saw the draft paper in Wang Xuehui's hand.

His eyes lit up, he got up quickly, and took the scratch paper in Wang Xuehui's hand.

Then, he pointed to a question written down last night on the draft paper, and said, "Mr. Wang, just in time for you to come, please look at this question for me, I haven't done it for a long time."

"No, I said how do you learn."

Before Wang Xuehui finished speaking, Chen Zhou interrupted immediately: "Mr. Wang, if you are, it will definitely be solved in minutes. I'm not very good at this, can you show me?"

Wang Xuehui didn't speak, just looked at Chen Zhou.

Chen Zhou immediately looked like he was studying and asking questions, and his finger still pointed at the question.

After about ten seconds, Wang Xuehui said slowly, "Show me the topic."

Chen Zhou immediately handed over the scratch paper, pointed his finger at the question again, and said, "Mr. Wang, look, this is the question."

Wang Xuehui glanced at Chen Zhou again, then looked down at the title on the scratch paper.

Seeing this, Chen Zhou breathed a sigh of relief and thought to himself, "I finally diverted my attention. As soon as the topic is finished, I will almost go back to school..."

There is no way, Wang Xuehui has said that you are a little floating. Chen Zhou dare not be careless and can only take it seriously.

On the scratch paper is a proof question for the limit of a function. After Chen Zhou wrote it down last night, he didn't have time to do it, and he didn't know if it would be possible.

Just when Wang Xuehui was reading the topic, Chen Zhou also followed Wang Xuehui to read the topic.

The topic is very simple, only one sentence.

"Prove that lim(x→3)(xx-6)/(x-3)=5 from the definition of the limit of the function."

After reading the title, Wang Xuehui thought for a while, and then asked Chen Zhou, "Chen Zhou, what is the definition of the limit of a function?"

Chen Zhou was a little sluggish and replied: "In a certain change process of the independent variable, if the corresponding function value is infinitely close to a certain number, then this certain number is called the limit of the function in this change process. ."

"Yes, I remember it quite well." Wang Xuehui nodded, then picked up the pen on the table and began to explain while writing.

"First, you take any ε > 0, there exists d = ε, such that |x-3| is satisfied for all x

"Well." Chen Zhou nodded, then glanced at Wang Xuehui.

王学辉也看了陈舟一眼,微微迟疑,却还是继续说道:“那么,就有|(x-x-6)/(x-3)-5|=|(x-x-6-5x+15)/(x-3)|=|(x-6x+9)/(x-3)|=|x-3|,而|x-3|<d=ε,则原题得证。听懂了吗?”

Chen Zhou subconsciously wanted to nod his head, and then hurriedly acted in a contemplative state without speaking.

Wang Xuehui just looked at Chen Zhou in this way. Normally, he would not disturb the students' thinking after he finished his lecture.

This time, too.

After waiting for a while, Chen Zhou felt that it was almost the same, so he nodded lightly and said, "Understood, thank you teacher."

Seeing his appearance, Wang Xuehui didn't know what to say. He just pointed at Chen Zhou and didn't finish what he said before.

At this time, the landlord called Wang Xuehui to eat, and Chen Zhou packed up the papers, and the two went out of the house together.

When Chen Zhou was about to walk out of the landlord's house and leave for the school, Wang Xuehui finally said: "Chen Zhou, let's learn advanced mathematics when there is time, don't delay your current study. The college entrance examination is imminent, there is no room for slack, you understand. ?"

Chen Zhou looked back at Wang Xuehui, smiled, and immediately said, "Teacher, rest assured, I will definitely put the college entrance examination in the most important position."

After finishing speaking, Chen Zhou walked quickly to the school. He suddenly thought of what Chen Haining and the others said jokingly before, about whether students are different in the eyes of the teacher?
Chen Zhou now thinks that there may be something different.

After this incident, Wang Xuehui did not talk to Chen Zhou alone again.

However, Chen Zhou was still stably outputting his firepower in the exam, sprinting forward with imperceptible progress.

This kind of stable performance is probably one of the reasons why Wang Xuehui didn't find Chen Zhou.

As April is almost halfway through, the countdown to the college entrance examination on the blackboard at the back of the classroom has been reduced to 4 days.

In about half a month, it will be the third mock exam before the exam.

And half a month is very fast for Chen Zhou, who is immersed in the review plan and learning advanced mathematics.

Through this period of study, he has learned about a quarter of the first volume of Advanced Mathematics (Sixth Edition).

Although many of the knowledge points in the first volume were already familiar to Chen Zhou, he did not jump over them directly, but studied them again seriously.

Therefore, Chen Zhou's learning was a little slow.

Through this period of adjustment, Chen Zhou was also able to control the amount of psychoactive drugs well.

In fact, if he had a measuring cup or something, it would be more accurate, but unfortunately, the conditions did not allow it.

During the month of taking the medicine, Chen Zhou also discovered a situation.

Now he is drinking the potion every day in a row to aid his studies, but he has never had the first time that he needs to take a day off after drinking for three days.

This makes Chen Zhou feel very strange, is the body resistant to drugs?But the effective time of the medicine has not shortened?

Chen Zhou really couldn't figure it out, so he had to give up.

As the time reaches the end of April, when there are 4 days left in the countdown of the post-blackboard college entrance examination, the notice of the three-mode exam is announced.

April 4 and 26.

For college students, the three-mode test is actually the last serious mock test in the true sense.

Although there will be the last four-mode in late May, it is more like a warm-up match before the college entrance examination, an adaptive and regulated test.

The main function is to give candidates a chance to practice before the exam, to see if the exam status is normal, if there is a feeling of a big exam, and by the way, reduce the difficulty of the questions and help the candidates build confidence.

Therefore, candidates need to seize the opportunity of the three models, pass this test, and timely test the effect of their own review, and fill in the gaps.

In this way, they can further study their own learning situation, enter the preparation state in advance, and adapt to the examination environment.

The three-mode is equivalent to an all-round physical examination, which has great reference value.

Regardless of whether the test is good or bad, there is still a month to adjust.

Chen Zhou did not make any special preparations for this three-mode test.

After all, he has always attached great importance to the big and small exams.

However, what Chen Zhou didn't expect was that he revisited the old place again.

His exam room this time was the same as the Christmas exam, but he didn't know if Yang Yiyi was still next door.

On the 26th, the Chinese test was taken in the morning and the mathematics test in the afternoon.

On the 27th, I will take the general science test in the morning and the English test in the afternoon.

According to Chen Zhou's habit, language begins with composition.

After the composition is done, go to solve the previous objective questions.

Mathematics is done one by one, from selection to filling in the blanks, to answering questions.

The comprehensive examination is divided into subjects according to the order of physics, chemistry and biology.

In English, fill in the blanks for the single item first, probably before the listening starts, and then the listening starts.

Listening is over, and then continue to do the question from the cloze.

On the afternoon of February 2, the last English test.

Chen Zhou, who handed in the papers ahead of time, packed up his backpack after walking out of the exam room, leaned on the desk outside the classroom, and waited for Yang Yiyi.

When Chen Zhou finished the first Chinese test, he found out that Yang Yiyi was in the test room next door, just like the Christmas test.

(End of this chapter)


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