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What's the difference between pre-defense and formal defense of graduate students?
The preliminary defense is the internal defense of our research group. Warm up before you reply, and the teacher will help you improve.

Formal defense means that after passing the pre-defense, the paper is sent to the school for review. According to the examination opinions, if you agree to reply, it is a formal reply.

Defensive tips (notes):

1, formal defense wear formal attire. If it is a formal defense, formal attire must be worn. Wearing a formal suit at least shows that you attach great importance to this defense and left a good first impression on the judges. Moreover, after putting on formal clothes, a kind of self-confidence will emerge from the bottom of my heart, forming an invisible gas field to help you resist some pressure. If you're worried that everyone else is wearing casual clothes and you don't fit in with formal clothes, take off your coat and wear only a shirt before going to the stage. In winter, you can wear a down jacket outside the formal suit to keep out the cold before the defense. When it's your turn to play, you can take off your down jacket and play. You don't have to wear a suit and coat in summer, just wear a white shirt.

Don't count the materials again before you leave for the defense in order to get the judges to sign your defense materials and give you high marks? This is the original purpose and the ultimate purpose. Therefore, I would rather bring more materials than less, so I must bring them all. Especially the defense PPT, USB flash drive and defense form. In addition, remember to bring more pens and white paper in case of emergency. If you expect to wait a long time for your defense, bring some plates of chocolate to replenish your energy at any time.

3. Remember the time to reply, everyone's time is the most precious. If you are late, the judges have the right to think that you are not paying enough attention. At this time, in fact, they have given you a big bad review in their hearts. Next, they will naturally find fault in your defense. It is better to wait for the judges than to let them wait for themselves. If a group of people reply together in turn, it is best to go to the meeting before the first person replies. First, people who are familiar with the venue will be relatively timid in unfamiliar places, but after they are familiar with it, they will become home and feel more calm; On the other hand, it is to look at the questioning style and personality of the defense members, so as to know fairly well; Furthermore, get to the venue early, in case you find something wrong with your PPT, there is still time to remedy it.

4. After testing the computer in advance or PPT arrives at the venue, before the members of the defense committee arrive, take the time to test the computer. If you plan to use your own notebook, please test whether the computer can be connected to the projector correctly. If you use a computer at the defense site, you should turn on PPT to confirm whether the versions are compatible or not. To be on the safe side, it is suggested to save a compatible version and a PDF version on the USB flash drive before leaving for the defense site, just in case. Otherwise, once you find that your PPT can't be opened and there is no alternative, it may be too late to run back or borrow a computer from someone next to you. Capsizing in a small river ditch will be extremely annoying. You should develop these little habits in peacetime. On important occasions, people are often more likely to be stupid because of nervousness. Good habits will make you form conditioned and subconscious reactions, helping you to make fewer mistakes at critical moments.

When defending the defense minister, the defense minister is often very busy. Besides serving tea and water to the judges, they also have some recording tasks. Therefore, when the defense Committee members are busy, don't just watch, have a little eye and help with some chores. Don't be embarrassed. Of course, if you feel particularly nervous or unprepared, then find a corner under the stage and meditate silently.

6. The first two minutes are the most important. Speaking the first few words after taking the stage is usually the most tense time, but it is often also the time for the judges to inspect you. They will give you an impression in your mind in the first two minutes. Whether you want to admit it or not, the first impression is very important: if they think you are not bad, they will involuntarily ask some simple questions. But if you are unhappy, you will subconsciously ask some difficult questions. So after I took the stage, I couldn't say how nervous I was. Take a deep breath first, look at them gently, and then smile. The opening remarks and the first few pages of the report must be memorized. A leisurely opening will make you form a strong enough atmosphere, calm down the judges and give you a good start. And a good start is often more meaningful than half the success in defense. Because they are very tired after listening to so many defenses, they may start to be distracted after a while.

7. Grasp the scale of PPT and speech. Try to focus on pictures in PPT, and write some short words at key points to remind yourself, but don't have long stacks of words. Don't use big white boards as shading, and don't be too fancy. Generally, the logo+ of your school or unit is light yellow. Some people say: the judges seem to understand something after listening, but they don't seem to understand it. Half-understanding is the best ppt. Why? Because if he knows everything, he will find your job not difficult. If he doesn't know anything, he will think what you say is a mess; If he doesn't understand, he will think that your work is deep, just because he can't tell everyone all the details in a short time.

8. Keep calm and smooth for a few minutes before the PPT stage. You are not too dangerous, but you still can't let your guard down. In the process of making a report, don't read the words on the PPT at random, don't bow your head or just look at the screen without looking at people, and don't ignore the judges who speak too fast. If you are nervous looking at the judge, you can look at his chin. Watch your chin, not your forehead, because if you look at their foreheads, it seems to the judges that you are rolling your eyes and holding your head high, although you don't mean it.

9. Don't rob the questioning session. The most common mistake is to hear the judge's question and feel that you know the answer, so you can't wait to answer it immediately, even if you haven't finished asking your own question. Or think that the judges' doubts are wrong and want to correct the judges' mistakes immediately. In fact, you should listen to them patiently until they stop talking before you start answering questions. Besides, don't argue with the judges, they have your scores in their hands.

10, three thanks are indispensable. First of all, before starting to talk about ppt, thank the judges first. People take time out of their busy schedules to participate in your defense. No one's time falls from the sky. Second, thank the judges after the ppt. People sit here and listen to you for a long time, and nobody owes anyone. Third, thank your tutor or teacher. If they are kind to you at ordinary times, you can naturally make a sincere expression. If they are not nice to you at ordinary times, pretend to make a sincere expression.