HSK 2.0 等级 5+
HSK 3.0 等级 5+
8 分钟阅读
自...以来 and 由...组成
Learn 自...以来 and 由...组成 with practical HSK 5 examples, focus vocabulary, common pitfalls, and targeted cloze practice.
Pattern
time frame and composition frames
Use this HSK 5 pattern to make sentence structure, scope, or emphasis explicit instead of relying on word-for-word English order.
自从毕业以来，他一直很忙。
When to use 自...以来 and 由...组成
Read time frame and composition frames as a sentence tool, not just as vocabulary. First locate the main action or claim, then ask what 以来 adds to it.
开春以来雨水很多。
Since spring began there has been a lot of rain.
入学以来他进步很快。
Since starting school he has improved quickly.
Common traps
- Do not translate time frame and composition frames mechanically from English; check the Chinese word order first.
- Keep 以来 close to the part of the sentence it controls.
- Do not overuse the pattern in every sentence; use it when it adds a clear role.
针对性练习
先练这个句式，再继续往下看。
价格亲民的年付与终身方案