❶ 这句话用英语怎么说“学过的知识要及时复习，如果不及时复习就会忘记。”
学过的知识要及时复习，如果不及时复习就会忘记。
英语是：The knowledge which we have learnt needs reviewing in time, or we will forget it.
句子解释：
knowledge 英[ˈnɒlɪdʒ] 美[ˈnɑ:lɪdʒ]
n. 了解，理解; 知识（表示多方面的知识时有复数knowledges这一用法）; 学科; 见闻;
[例句]She told Parliament she had no knowledge of the affair.
她告诉议会她对此事并不知情。
review 英[rɪˈvju:] 美[rɪˈvju]
n. 回顾; 复习; （报刊的） 评论; [法] 复审;
vt. 评论; 复习; 复查; 检验;
vi. 复习功课; 写评论;
[例句]The president ordered a review of US economic aid to Jordan
总统下令对美国向约旦提供的经济援助进行审查。
forget 英[fəˈget] 美[fərˈget]
vt. 忘掉; 忘记，忘却; 忽略，疏忽; 遗落;
vi. 忘记; 忽视;
[例句]Sometimes I improvise and change the words because I forget them.
有时，我临场发挥改了词，因为我把原来的词给忘了。
❷ 课前预习,课后复习英语怎么说急！谢！
课前预习 make prepartions for lessons before class
课后复习 review after class
❸ 复习用英语怎么说
review v. 复习
❹ 上课认真听讲，做好笔记以便课后复习 用英文怎么写
上课认真听讲,做好笔记以便课后复习
英文翻译：Listen carefully in class and make notes for review after class
重点词汇：
Listen听; 倾听; 听信; 听从; 听着，注意听
carefully仔细地; 小心翼翼的; 诚惶诚恐地; 颇有分寸地
in class在上课; 在上课中
make notes做笔记；记录
after class下课后
(4)再比如说课后复习知识的英语扩展阅读：
其他重点词汇：
Key words
1、听讲：listen to a talk; attend a lecture
Listen to a talk; attach a collection
2、笔记take down; notes; a type of literature consisting mainly of short sketches
Take down; notes; a type of literature considering mainly of short sketches
3、课后after class/school
After class / School
4、复习review; revise; refresher
Review; review; refresh
❺ 复习以前学的知识,预习将要学的知识用英语怎么说
To review what I have learned and preview what I am to learn.(*^__^*) 嘻嘻……
❻ 要做到课前预习上课时专心听讲课后及时复习用英语怎么写
You should preview the lessons before class,concentrate on the lecture, and go over them after class.
❼ 课后认真复习的英语怎么说
课后认真复习，用英语是：Review carefully after class.
句子解释：
review 英[rɪˈvju:] 美[rɪˈvju]
n. 回顾; 复习; （报刊的） 评论; [法] 复审;
vt. 评论; 复习; 复查; 检验;
vi. 复习功课; 写评论;
[例句]The president ordered a review of US economic aid to Jordan.
总统下令对美国向约旦提供的经济援助进行审查。
carefully 英['keəfəlɪ] 美[ˈkɛrfəlɪ]
adv. 仔细地; 小心谨慎地; 警惕地; 周密地;
[例句]We carefully watched every detail of his action.
我们仔细观察了他动作的每个细节。
class 英[klɑ:s] 美[klæs]
n. 班; 阶级; 等级; 种类;
vt. 把…归入某等级，把…看作（或分类、归类）; 把…编入某一班级;
adj. 很好的，优秀的，出色的;
[例句]He acquired a law degree by taking classes at night.
他通过读夜校获得了法律学位。