读后感的英语是reaction to a book or an article。
例句：
1、我在其它课上也有记日志，总结（材料）并写些读后感。
I've kept journals for other classes, summarizing and writing about how I felt about readings.
2、不同于传统的读书俱乐部，这家慢阅读俱乐部并不要求会员们就某一本书分享读后感，而只是让大家远离电子设备，在安静、放松的环境中阅读。
Unlike traditional book clubs, the point of the Slow Reading Club isn't exchanging ideas about a certain book, but to get away from electronic devices and read in a quiet, relaxed environment.
3、新城市主义的区域发展模式&Peter Calthorpe的《下一代美国大都市地区：生态、社区和美国之梦》读后感。
Regional Development Pattern of the New Urbanism& Read the book The Next American Metropolis: Ecology, community and the American dream by Peter Calthorpe.
4、读后感写作指导与思维训练。
A Guide to "post-reading essay" writing and thinking training.
5、我知道我以前布置的读后感都很难。
I know I've been giving difficult reading responses.