张老师昨天给我们作了一个关于如何学好英语的讲座．

张老师昨天给我们作了一个关于如何学好英语的讲座

Yesterday Mr. Zhang gave us a lecture on how to learn English well.

Mr.Zhang delivered a lecture on how to learn English well yesterday.

yesterday最好放在句末.

关于什么用on,一般不用about.

作讲座,deliver会比较地道.

Yesterday teacher Zhang gave us a lecture about how to study English well!

teacher zhang gave us a lecture yesterday, which was about how to learn english well

Yesterday Mr. Zhang gave us a lecture on how to learn English well.