Then作为连接副词是我们在写作、完形以及阅读理解中经常碰到和使用的单词，then的书写虽然非常简单，但是很多同学却并不清楚如何使用，瀚森教育英语名师对then的用法进行了系统总结，希望对大家的学习能够有所帮助。
1. ADVThenmeans at a particular time in the past or in the future. 那时
例：He wanted to have a source of income after his retirement; until then, he wouldnt require additional money.
他想在退休后有个收入来源，而这之前则不需要额外的钱。
例：Executives pledged to get the company back on track. Since then, though, shares have fallen 30 per cent.
主管们发誓要让公司重上轨道，不过从那以后股票价格还是下降了30％。
2. ADJThenis used when you refer to something which was true at a particular time in the past but is not true now. 当时的 [ADJ n]
例：...a tour of the then new airport.…在当时新机场的一次参观。
3. ADVThenis also an adverb. 当时 [ADV group]
例：Richard Strauss, then 76 years old, suffered through the war years in silence.
理查德·斯特劳斯当时已76岁，默默地熬过了战争岁月。
4. ADV You usethento say that one thing happens after another, or is after another on a list. 然后
例：Add the oil and then the scallops to the pan, leaving a little space for the garlic.
往锅里倒入油，然后加入扇贝，再放一点大蒜。
5. ADV You usethenin conversation to indicate that what you are about to say follows logically in some way from what has just been said or implied. 那么 [cl/group ADV]
例："I wasnt a very good scholar in school."—"Then why did you become a teacher?"
我在学校时成绩不是很好。— 那你为什么当老师呢？
6. ADV You usethento signal the end of a topic or the end of a conversation. 用于表示话题或谈话结束 [cl/group ADV]
例："Ill talk to you on Friday anyway."—"Yep. Okay then." 我星期五总归要和你谈谈的。 —行，就这么定了。
7. ADV You usethenwith words like "now," "well," and "okay," to introduce a new topic or a new point of view. 用于引入新话题或新观点 [adv ADV]
例： Now then, Im going to explain everything to you before we do it.
嗯，我要在我们动手之前向你们把一切解释清楚。
8. ADV You usethento introduce the second part of a sentence which begins with "if." The first part of the sentence describes a possible situation, andthenintroduces the result of the situation. (引导以if开头的句子，叙述可能的情况) 那么 [ADV cl]
例： If the answer is "yes," then we need to leave now.
如果答案为是，那么我们现在就该离开了。
9. ADV You usethenat the beginning of a sentence or after "and" or "but" to introduce a comment or an extra piece of information to what you have already said. (用于句首或)(and)(、)(but)(之后) 话说回来 [ADV cl]
例：He sounded sincere, but then, he always did.
他听起来很诚恳，不过，话说回来，他一贯如此。
希望我们的解释对大家的英语学习有所帮助。如果你在英语学习中遇到疑问，欢迎和我们联系。更多英语学习，硕士考研和出国留学信息，请登陆www.hansonedu.cn了解详细信息。瀚森教育专注英语教学，为您提供最新最全的英语学习信息。
