考研英语中常见的主题句型包括：
1. To begin with, the topic is...
2. Firstly, we need to consider...
3. In the first place, the issue at hand is...
4. Initially, let's examine...
5. First and foremost, it is essential to understand that...
6. To start with, this essay aims to...
7. In the light of this, one must recognize...
8. The main focus of this essay is...
9. To delve into the subject, we should first look at...
10. Above all, it is crucial to note that...
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