as soon as怎么用？语境时态怎么用？ while与when的区别呢

as soon as怎么用？语境时态怎么用？ while与when的区别呢

1.as soon as引导时间状语从句当主句用一般过去时时，从句中用一般过去时或过去完成时。 例：晚会刚一开始他就离开了。 　　As soon as the party began/had begun he left. 　　He left as soon as the party began/had begun.(位于主句前后均可) 例：他一听到那个消息就晕倒了。 　　As soon as he heard/had heard the news, he fainted. 　　He fainted as soon as he heard/had heard the news. 2.as soon as 可以表将来的事：这时主句用一般将来时，从句用一般现在。(主将从现) 例：我一见到他就会告诉他这个消息。 　　As soon as I see him I will tell him the news. 　　I will tell him the news as soon as I see him.(位于主句前后均可) 我一到北京就会给你打电话。 　　I will call you as soon as I arrive Beijing. 　　As soon as I arrive Beijing I will call you. 我一看到他就会告诉。 　　I will tell him as soon as I see him. 　　As soon as I see him I will tell him. 当主句用一般将来时时，可以用一般现在时代替一般将来时 再答： as soon as ：(adv.)"一...就..."，强调两个动作几乎是连在一起的,后接从句。 1.当主句是一般将来时时，as soon as引导的状语从句应用一般现在时； 2.当主句是过去将来时时，as soon as引导的状语从句应用一般过去时。 有时跟某些单词如与possible相连—"as soon as possible"，其实是as soon as IT IS possible的省略形式，译为"尽快"。 eg. As soon as he finishes his classwork, he runs out of the class. 他一做完课堂作业，就跑出了教室。 came as soon as possible.马上就来了
再答： 英语时态 英语的时态是靠动词的变化和时间状语来表达的。英语中的时态共有十六种，但是常考的或较常用的只有8种，而且重点测试完成时态。 要掌握英语的时态和语态，必须掌握好英语中的助动词(do, be, have)和时间状语这两个核心问题。 1、一般现在时 主要用来表示人、事物的现在状况和特点；表示经常或习惯性的动作，句子中常有often, always, from time to time 等时间状语； 表示客观规律和永恒真理等。 He usually goes to work at 7 o’clock every morning. She has a brother who lives in New York. The earth goes around the sun. Guangzhou is situated in the south of China. 考点一：表示永恒的真理，即使出现在过去的语境中，仍用一般现在时。如： I learned that the earth goes around the sun when I was in primary school. 考点二：在时间和条件状语从句中，代替一般将来时；常用的引导词有： 时间：when, until, after, before, as soon as, once, the moment/the minute, the day; 条件：if, unless, provided. If he accepts the job, he will get more money soon. 考点三：在make sure (certain), see to it, mind, care, matter ＋宾语从句， 从句用一般现在时代替一般将来时。 So long as he works hard, I don’t mind when he finishes the experiment. 只要他努力工作， 我不介意他什么时候做完试验。 考点四：在the more… the more … (越……越……) 句型中, 若主句是一般将来时, 从句通常用一般现在时。 The harder you study, the better results you will get. 2、现在进行时 表说话时或目前一段时间内正在进行的活动：或表感情色彩，加强语气。与频率副词，如always，constantly，continually，again等连用表示说话人的某种感情色彩（赞叹、厌烦、埋怨等）。 We are having English class. The house is being built these days. The little boy is always making trouble. 考点一：在时间状语或条件状语从句中表示将来正在进行的动作。 Look out when you are crossing the street. Don\'t wake him up if he is still sleeping at 7 tomorrow morning. 考点二： 表示在最近按计划或安排要进行的动作（这时多有表示将来的时间状语）。 Marry is leaving on Friday. 3、现在完成时 表示动作发生在过去，完成在过去，但强调与现在情况仍有联系，其结果或影响仍存在。现在完成时有一些标志性的时间状语： 考点一：for + 时间段；since + 时间点 They have lived in Beijing for five years. They have lived in Beijing since 1995. I have learned English for ten years. 考点二：常见的不确定的时间状语：lately; recently, just, already, yet, up to now; till now; so far, these days, Has it stopped raining yet? 考点三：在表示“最近几世纪/ 年/ 月以来……”时间状语中，谓语动词用现在完成时。 in the past few years/months/weeks/days；over the past few years; during the last three months; for the last few centuries, through centuries; throughout history 等 考点四：表示“第几次做某事，”或在 “It is the best (worst, most interesting ) +名词 ＋that” 后面跟现在完成时。 This is my first time that I have visited China. This is the most interesting film I have ever seen. That is the only book that he has written. 4．一般过去时 表在过去某个特定时间发生且完成的动作，或过去习惯性动作，不强调对现在的影响，只说明过去。常跟明确的过去时间连用，如：yesterday; last week; in 1945, at that time; once; during the war; before; a few days ago; when, 注意： 2 英语时态 考点一：used to + do，表示过去经常但现在已不再维持的习惯动作。to为不定式，后接动词原形。 be/become/get used to + doing，表示习惯于 He used to smoke a lot.
再答： 两者的区别如下： ①when是at or during the time that, 既指时间点，也可指一段时间； while是during the time that，只指一段时间，因此when引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。 ②when 说明从句的动作和主句的动作可以是同时，也可以是先后发生；while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。 ③由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导，如： a. When the teacher came in, we were talking. 当此句改变主从句的位置时，则为： While we were talking, the teacher came in. b. They were singing while we were dancing. ④when和while 还可作并列连词。when表示“在那时”；while表示“而，却”，表对照关系。如： a. The children were running to move the bag of rice when they heard the sound of a motor bike. 孩子们正要跑过去搬开那袋米，这时他们听到了摩托车的声音。 b. He is strong while his brother is weak. 他长得很结实，而他弟弟却很瘦弱。 when; while 当……时候 while能用when代替; 但是when却不一定能用while代替. while+从句, 动作一定会延续 when+延续性动词/瞬间动词; when he arrived when he died when,while强调动作同时发生 过去进行时 : 在过去的某一点时间, 或者是过去某一动作同时发生的另外一个动作 瞬间动词(arrive)无进行时态 I am arriving 进行时态表示将要 When he arrived,I was having dinner. 同时发生的两个动作, 均用过去进行时 When I was doing my homework,my mother was cooking. When my mother was doing the housework,my father was watching TV. 同时发生的两个动作 1.一个用一般过去时, 另一个用过去进行时 2.分工的情况, 均用过去进行时 When the plane arrived,...were waiting inside the main building while others were waiting on... While... ...were keeping guard at the door,two others opened the parcel. 表面上是分工, 两个动作同时发生, 不是同时开始同时结束, 延续时间不一致, 长一点时间的动作用进行时态, 短时间的动作用过去时. When someone knocked at the door,I was having dinner. when和while引导的时间状语从句与这一时态连用。所以区别when和while的用法成了这 一单元的难点。 （一）、when，while都有“当……时候”的意思。when既可表示某一点时间，也可以表示某一段时间 。在when引导的时间状语从句中，其谓语动词可以是延续性的，也可以是非延续性的，可与主句中的谓语动词同时发生，也可在其后发生。 例如： 1、I was just reading a book when she came into my room. 她走进我房间时，我正在看书。 2、Were you writing when the teacher came in? 老师进来的时候，你在写信吗？ 3、When he was a child he was always trying out new ideas. 他小时候就常常试验一些新的设想。 （二）、while只能表示某一段时间，不能表示某一点时间。在while引导的时间状语从句中，其谓语动词只能是延续性的，而且也只能与主句中的谓语动词同时发生或存在。 例如： 1、While Jim was mending his bike, Lin Tao came to see him. 正当吉姆修自行车时，林涛来看他。 2、You can’t do your homework while you’re watching TV. 你不能一边看电视一边做家庭作业。 （三）、另外，when和while的区别还在于：while引导的时间状语从句多用进行时态，而when引导的时间状语从句多用一般时态。 例如： 1、While they were talking , the bell rang. 正在他们谈话的时候，上课铃响了。 2、I was doing my homework when my mother came back home yesterday evening. 昨天晚上妈妈回家的时候，我正在做家庭作业。 when/while都可做并列连词．前者表and at that time,(这时，突然)，后者表对比，可译为”然而” I was going downstairs when the telephone rang. Lucy is in blue while Lily is in green. when后加瞬间动词 while后也可加持续性动词
再答： 望采纳