雅思作文7分的高级词汇和语法结构有哪些？

高级词汇：

1. facilitate
2. enhance
3. exacerbate
4. mitigate
5. alleviate
6. proliferate
7. augment
8. expedite
9. ameliorate
10. exacerbate

高级语法结构：

1. complex sentences
2. compound sentences
3. passive voice
4. conditional sentences
5. subjunctive mood
6. rhetorical questions
7. inversion
8. emphatic structures
9. parallel structures
10. ellipsis