lecture
单词辨析：
普通用词，指在正式或普通场合所作的发言或讲话，可以是事先准备的，也可以是即席的。
The professor will give a speech at the meeting.
教授将在会上发言。
She is going to make a speech this afternoon.
她今天下午要作演讲。
His keynote speech won the applause of the audience.
他的主题演讲赢得了听众的掌声。
较正式用词，指在庄严场合所作的正式演说或精心准备的演讲，常后接介词 to。
His inspiring address was broadcast last night.
昨晚广播了他令人鼓舞的讲话。
The President gave a television address yesterday.
总统昨天作了电视讲话。
The general delivered an address to the European people.
这位将军向欧洲民众发表了演讲。
尤指大学中的演讲、讲座、讲课，强调学术性，常后接介词 on/about。
The professor's lecture excited our interest.
那位教授的讲课引起了我们的兴趣。
The lecture will be made in the hall.
讲演将在大厅举行。
He is giving a lecture on Greek myths.
他正在作有关希腊神话的讲座。
通常指下级向上级、主管向上级机关所作的书面或口头报告，或指对某一课题的研究报告。
The director asked me to shorten the report to one page.
主管要我把报告缩为一页。
It is a report on the current international situation.
这是一个有关当前国际形势的报告。
The question is discussed at large in his report.
他在报告中对该问题作了详细的探讨。
普通用词，指关于某一特定话题的演讲或讲座，常后接介词 on/about。
an inspiring talk
鼓舞人心的演讲
Many professors attended the talk on local history.
很多教授出席了那次有关当地历史的讲座。
He will give a talk on developments in computer software.
他将作一个关于计算机软件发展的报告。
相关例句：
The lecture was given under the auspices of the Academy of Sciences.
这次报告会是由科学院主办的。
Before you lecture me, Mr Abbey, I suggest you set your house in order.
阿比先生，在你教训我之前，我建议你先把自己的事管好。
They are listening to the lecture with avid attention.
他们聚精会神地听讲演。
She was no longer interrogating but lecturing.
她已经不是在审问而是在教训人了。
The lecture will trace the depiction of horses from earliest times to the present day.
这个讲座将探究从古至今的画马艺术。
Instruction in these subjects in undergraduate classes is almost exclusively by lecture.
本科生的这几门课程几乎完全是通过讲座教授的。