"The midterm exam is coming, but our chemistry score is much worse than that of Class 8." In chemistry class, the chemistry teacher said to us.

Class 8 is our competitor to the same Science Class A, and each subject in both classes is taught by different teachers. Since the beginning of this semester, our chemistry class has not exceeded the eighth class, and our chemistry teacher is also a little nerve-wracking.

"I think you usually do too little homework, so you need to strengthen your practice and strive to do well in the midterm exam."

"That's it, from today onwards, I will give you two more questions every day, and let the class representative vote them for you, and you can copy them down and do them."

"Use a special book to copy, you have to use a good book."

"The whole class uses a unified notebook, and you can choose one person to buy it for yourself."

The chemistry teacher gave a bunch of requirements.

Actually, this is not the first time that a chemistry teacher has done this. Last semester, he asked each of us to take out a new book as a dictation book for chemical equations, and asked each of us to write the words "chemical equations" in the lower right corner of the notebook. However, after doing a lot of superficial work, I didn't listen to the dictation a few times at all.

This matter is known to the whole class of Class 7 today.

Another thing is that in the first semester of high school, when we were not divided into arts and sciences. At that time, I was in class 5, and this teacher taught me chemistry. During that six months, he also did the same thing that asked us to prepare a dictation book, but he didn't stick to it a few times.

I think I know him quite well.

Our chemistry teacher is a "Buddhist youth".

He always speaks softly and slowly, as if nothing can cause waves; It doesn't matter if someone doesn't listen to him in class, anyway, if he talks about his own, there will always be someone who listens; We basically don't check homework after class, everything depends on our consciousness; It doesn't matter if we do it or not, because it's our own business; It's okay to always go off topic in class, anyway, you can finish it sooner or later.

It's just that such a Buddhist teacher occasionally has a whim.

For example, as I just said, occasionally check our homework, but after checking it, he will become a "Buddha": I don't want to care, let them go; Or suddenly I remembered that I wanted to give us a class to dictate and test, but after dictating two or three times, I became "Buddha" again: I don't want to listen to it, so let them go.

I feel that his behavior is called: tried to try, but couldn't do it.

With the above understanding, I think I have been able to come to a conclusion: this time the chemistry teacher said that he would give us extra questions every day, and he must not have been able to do it a few times and couldn't persevere.

But no matter what, we still have to do the homework assigned by the teacher, and we have no choice but to honestly copy the questions that Lin Haiyuan, the representative of the chemistry class, voted for us with a projector.

At first, Lin Haiyuan didn't know how to use the instrument that took pictures of paper, and I taught him to use it at the podium, but the next day he forgot to take off the lens cap, and I "laughed" at it-

"Huh? Why is the screen so dark? ”

"Poof~ You take a closer look at the camera."

"Oh, I forgot to take the lens cover!"

"Haha, you can forget this, you're really stupid~ I can't teach you."

To be honest, I don't approve of copying questions this way. I think it's too inefficient. We have so many tutorial books and workbooks, but we can't do any one, and we still have to copy the questions by hand? That's a lot of time. Not to mention questions such as it is troublesome to vote the question and cannot be corrected without an answer.

But no way, who made us students? Only did so.

However, fortunately, our chemistry teacher is a person who fishes for three days and dries nets for two days, so maybe he won't be able to solve the problem in a few days, so bear with me. I consoled myself.

One night, Lin Haiyuan was fiddling with instruments on the podium, and I suddenly had a whim and said to him-

"Lin Haiyuan, with my understanding of the chemistry teacher, I dare to say that he said that he will give us questions every day this time, and it will not last long, believe it or not?"

"Really? I don't believe it. ”

"You don't believe it? Shall we make a bet? "I'm very confident in this judgment.

"I don't gamble."

"Who said I'm going to gamble with you?"

"I don't have anything to bet you on."

"Gee, you don't have to gamble money or things to bet."

"Then don't bet on anything?"

"What's the fun of not gambling on anything?"

"Then what are you betting on?" He asked me.

"Or ...... We'll bet on ...... Bet on a day of duty! "I suddenly had a great idea -

"How about a losing person helping a winning person do a day of duty? I know you sweep the floor on Monday. "I like him so much, I look at him every chance I get, and of course I know when he's on duty.

"And what do you do?" He asked me.

"I wipe the blackboard on Friday. What do you think? Do you want to make this bet with me? ”

"That'...... All right. He finally agreed.

"So, how do you win and how do you lose?" He asked.

"How many days do you think it's better for you to win if he lasts?"

"I think...... Fifteen days. ”

"Good! That's it! ”

I rejoiced in my heart: Hehe, fifteen days, I can make a lot of money, and now I will win!

"Then does he need fifteen days in a row to count me win?" Lin Haiyuan asked again.

"No, you don't! He only needs to be out for fifteen days, and you win! ”

I was relieved, not to mention continuous, even if I had ten days of questions, I felt embarrassed as a chemistry teacher, so we made this bet so happily.