及时复习英文

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。

To be prepared for class After School class, attentive and timely review of how to write in English.

first, if you learn something new, you must review/ go over it in time and note down the problems that you are not good at. second, you must practise more. third, you must have a good plan about waht you're going to do and make the best use of time so that you can save much time to do something you're interested in. what's more, it can improve your grades.these are my successful experience. i wish it a bit helpful to you all.

Review/Revise/Go over your lessons （just）in time after listening in class attentively / with attention. 专心听讲课后及时复习。

You should preview the lessons before class,concentrate on the lecture, and go over them after class.