1. There are many international conferences now. You can check them on Woodworm, but you have a conceptual mistake. Generally speaking, papers submitted to international conferences will be published by publishing houses or organizing committees, and some will be published in some journals. Only after your paper is published can you realize SCI or EI retrieval. Whether you go abroad or not has nothing to do with whether your paper is included or not. As long as the organizing committee accepts your paper, you can attend the meeting, but applying for visas from the United States or some European countries with this invitation letter has a refusal rate.

2. If the official language of the Organizing Committee is English, it is required that all words must be written in English. It doesn't matter if the number of words is more or less, but the preface, methods, experiments, results and conclusions should be clearly written and innovative, at least 3000 words. The specific organizing committee will have its own rules.

3. Pay attention to the form of the paper published by the organizing committee when submitting the paper, and which retrieval institutions will include it after publication. Generally speaking, SCI includes the highest-level meetings, which generally appear in IEEE Association meetings (except domestic ones, you know), followed by some meetings included in EI. It is safer to send an employment notice at the general meeting and show that your paper has passed the examination of the publishing house before paying.

I don't know what the fourth article means, but I guess what your tutor means is that you don't want to pay for it yourself, because going abroad for air tickets and accommodation is a big expense. Whether your tutor is willing to pay you this money depends on your nature. It's just an excuse to let a third party pay the bill. You go abroad for a meeting for no reason. Who pays for it except your parents?

Real foreign conferences, especially well-known academic conferences, are generally different from those in China. The key is that your article should be innovative, so that the other party can feel that you have certain opinions and innovations in this field.