以下是一些用於寫初三英語自薦信的句型：

自我介紹

Hello, my name is [你的名字] and I am in the third year of junior high school.

I am writing to introduce myself as a candidate for [職位/學校/獎學金等].

I have always been interested in [你感興趣的事物], and I believe that I have the skills and experience to excel in this position.

表達優勢和能力

I am a hardworking and diligent student with a passion for learning.

I have a strong academic record and have consistently achieved good grades in all subjects.

I am fluent in both English and Chinese, and I have excellent communication and interpersonal skills.

I am an active participant in extracurricular activities, such as [你參加的俱樂部、社團或志願者活動等]。

I am a problem-solver and creative thinker who is able to work well under pressure and handle multiple tasks simultaneously.

I have a positive attitude and am always willing to learn new things and take on new challenges.

表達期望和目標

I am excited about the opportunity to [你申請的職位、學校或獎學金等]，and I believe that I can make a valuable contribution to [工作、學術、社區等領域]。

I hope to gain further experience and knowledge in [你感興趣的領域]，and to use my skills and abilities to achieve my goals.

I look forward to the opportunity to meet with you and discuss my qualifications in more detail, and to learn more about [你申請的職位、學校或獎學金等]。

以上是一些常用的自薦信句型，可以根據具體情況進行調整和擴充。在寫作時，需要清晰明了地表達自己的優勢和能力，並結合實例證明自己的經驗和成就。同時也需要展示出自己的目標和期望，以及對未來的規劃和追求。