The Course of English Sentence Tree aims at offering an creative teaching design of English sentence to English teachers who are worried about teaching monotonous lessons on English grammar, and helping English learners who are eager to listen, speak, read and write with good competence of sentence knowledge, thus making the grammar lesson interesting.
In the course I tried to apply the way of a tree's growth to that of Simple Statements' production, which contains the seed, the root, the trunk, the branch and the leaf. The English Sentence Tree can be used to illustrate all the basic structures of Simple Statements. According to the way of a tree's growth, every grammatical part of Simple Statements finds it way in the tree, performing either a key role or a secondary one. The course proved effective to inspire students' thoughts and arouse their interests of learning English. So far I have applied it to English classes of primary and secondary students as well as freshmen.
Furthermore, I have supplemented the course with POA method from late 2019 till now. In the report I carefully explicate the scaffolding of English Sentence Tree in different phases in order to be better understood. There are selected scenarios for students to practise knowledge of sentence. The topics of practice are mostly connected with heroes and heroines against COVID-19. I sincerely hope that students will make progress both linguistically and morally after learning.   
 

English Sentence Tree;simple statement;grammatical parts;POA;COVID-19