Naturally, seeing that the two were still on the side, Mr. Xiao immediately understood, and this example was rather vague.

So, after thinking for a while, Mr. Xiao smiled and said: "For example, the power supply you use at home is 220V, but all the electrical appliances are connected in series, so in most cases, the voltage caused by this series connection is negligible." ”

In this way, the two of them suddenly realized.

Yes, there are indeed a lot of electrical appliances connected in parallel at home.

The power to the TV and the water heater are almost never turned off. If this is done in parallel and the voltage is reduced by a lot, then the situation is troublesome.

However, after a pause, Mr. Xiao continued: "However, there is also a situation that can be problematic, and that is when too many electrical appliances are used. When a vertex is reached, there is a noticeable drop in voltage. However, generally speaking, in such a situation, the main switch will jump, after all, in this case, the current of the bus will become very large, and the circuit will be more dangerous. ”

After returning home to the classroom for the last class, I sorted out my thoughts and went to bed. Since the increase in the course at the beginning of this semester is relatively obvious, as long as there is nothing particularly important at noon, Wu Zhenzhen is too lazy to turn on the computer.

After all, the schoolwork is heavy, and rest is the most important thing, although there is also the idea of turning on the computer to experience it in "Qi Fan - The Heroes Compete for the Deer", but the tiredness reminds Wu Zhen that he can't do this at this time.

Over time, I gradually adapted to the closed-book exam of the history class.

After all, on the one hand, closed-book exams make people have more things to memorize, but on the other hand, they make the difficulty of the exam decrease to a certain extent.

There will no longer be such a very detailed test point for multiple-choice questions, after all, some things can indeed be found in a flip book.

When I came to the school again, I walked into the classroom, and as soon as I sat down in my seat, Mr. Guan walked in.

After counting the number of people and finding that no one was late, Teacher Guan immediately began to say excitedly: "English text recitation competition." As the name suggests, it is to test whether everyone is reading English well. ”

Naturally, it sounded like a rather boring game, so there was no very positive response.

However, as the saying goes, there must be a brave man under the heavy reward, so Mr. Guan's next words are particularly important.

After all, there's no motivation without a reward.

Teacher Guan looked at everyone's listlessness and immediately laughed and said, "The first place winner in this competition will win the right to have no English homework in the future." ”

Naturally, there is something magical about this.

I don't have any English homework in the future, what kind of concept is that?

As a result, everyone turned to look forward to it, after all, the lack of such benefits as English homework is enough to make most people not calm.

Although English homework is not the most common among these assignments, many people are still annoyed by the questions made up of these letters.

So, after returning home at noon, Wu Zhenzhen also began to read English aloud along with the tape.

After all, not having to do English homework is also what Wu Zhenzhen is looking forward to.

At the end of school in the afternoon, Teacher Guan smiled and said, "Okay, this reading competition is scheduled for next Friday's class meeting." Students who are not ready to participate in the competition raise their hands. ”

Seeing that no one in the whole classroom raised their hands, Teacher Guan laughed.

After a pause, Mr. Guan continued: "Okay, looking at this appearance, you have all participated, so it will depend on your performance when the time comes." ”

After returning home, Wu Zhenzhen finished his homework and completed the scheduled review content and began to read English aloud.

After all, this no English homework is indeed an attractive reward.

However, when it came time to read English together in the morning self-study, Wu Zhenzhen understood that there was no chance of winning by reading aloud like this.

After all, they are all reading tapes, so a "new" player like Wu Zhenzhen, who has only recently been at full power, is naturally at a disadvantage.

After taking a short leave and going to the toilet, Wu Zhenzhen found that it was impossible to win the championship.

After all, Ma Song and Yuan Li's voices are even more authentic than those in the repeater.

If he hadn't seen the two of them changing their skin and black glasses, Wu Zhenzhen would even think that it was a foreigner pronouncing it.

At the end of class, Li Zengfan asked, "What's the matter?"

Wu Zhenzhen said: "Well, yes. Didn't Mr. Guan hold such a reading contest recently? ”

Li Zengfan said: "Yes, that's right. ”

Wu Zhenzhen said: "Isn't the reward very attractive. ”

Li Zengfan smiled and said, "Of course, there is no English homework. This benefit is many times more powerful than expected. ”

Wu Zhenzhen nodded and said, "So, I have an idea." ”

Li Zengfan smiled and said, "Haha, it's okay to think about it." However, in terms of strength, this thing is probably impossible. ”

Wu Zhenzhen asked, "Why?"

Li Zengfan smiled and said, "Think about the strength of Sun Can, Ma Song, Yuan Li and a few others." Where's your turn to do this? Besides, you've always been like that in English. ”

Wu Zhenzhen said: "However, people always have dreams. ”

Li Zengfan thought about it and said with a smile: "Haha, then I wish you success." However, I still rationally advise you not to dream unrealizable. ”

Naturally, after returning home, Wu Zhen was still not convinced.

However, there seems to be no way around it.

After all, the pronunciation of Ma Song, Yuan Li and others is there.

So, Wu Zhen turned on the computer and prepared to find a way on the Internet.

Although I found some hearing materials and the like, the stereo couldn't be turned on at this time.

So, after looking for a bunch of information, Wu Zhen didn't find any good way.

The days went on and on.

Later that night, passing by the living room by chance, Wu Zhenzhen suddenly found that one of the stations in the stage of his grandmother's tune was English.

So, Wu Zhenzhen immediately said, "Grandma, don't move the remote control." ”

Naturally, grandma has already changed the channel.

When I stopped, the TV was no longer the same one.

After stopping, the grandmother smiled and said, "Grandson, is there something wrong?"

Wu Zhen snatched the remote control and said, "I want to take a look at that station." ”

So, Wu Zhenzhen began to turn over one by one.

Finally, I found that English-speaking channel.

I saw that the program "ChinaDaily" was being broadcast on TV.

So, Wu Zhenzhen immediately remembered that the icon was CCTV9 at that time, and the CCTV English channel.

Grandma smiled and said, "Haha, it's all in English." Can you read it?"

Naturally, because everything on TV is about the news, it is really difficult for junior high school students to understand, so Wu Zhen shook his head after listening to a paragraph.

However, after a while, Wu Zhenzhen said: "Although I can't understand it for the time being, I will understand it later." ”

Then, the mouth began to try to move with the sound of the TV.