when的三种句型

于贸骅4103关于英语when一问题my mother_____the cake out of the oven when she dropped it.A.took B.was taking C.had taken D.was taken为什么不选A?When the ... -
万邢实13418268989 ______[答案] 第一个句子表示一个动作在进行,别一个动作在发生,when 是并列连词.引导是一个并列句. 这种句型有三种: 1.sb be doing when...某人正在做某事时突然. 如I was watching TV when someone knocked the door. 2.sb be about to do when...某人正要做...

于贸骅4103请教英语问题.when/while都有“当...的时候”的意思,使用中如何区别? -
万邢实13418268989 ______ 1.while要与延续性动词连用.when没有限制2.while可以表示对比. He is reading while she is cooking.3.when有副词“这时”的含义.常见三种句型 过去进行时+when+一般过去时 过去完成时+when+一般过去时 be about to do +when+一般过去时

于贸骅4103英语时态问题when 引导的状语从句 主从句时态的变化规律 或特点讲解下不要复制谢谢 那些我看不懂 也说不清楚 -
万邢实13418268989 ______[答案] 1.将when翻译成;当……时候,此时主句与从句时台一样.2.将when翻译成;……就在这时.有三个常用句型A.Be doing sth.when……正在做什么,就在这时B.be about to do sth.when……正要做什么,就在这时.(不知带你们老师...

于贸骅4103while 和 when 的区别和用法,最好举个句子说明 -
万邢实13418268989 ______ while与when的区别 when 与while引导的时间状语从句与这一时态连用,所以区别when与 while的用法成了难点. 一,when与while都有“当.....的时候”的意思,when即可表示某一时间点也可表示某一段时间.在when引导的时间状语从...

于贸骅4103when引导的时间状语从句的两种特殊句型是什么 -
万邢实13418268989 ______ 状语从句,顾名思义,就是整个从句在主句中充当状语.如: When I was doing my homework, I. suddenly heard a cry其中的When I was doing my homework就是一个状语从句,它是I suddenly heard a cry 的时间,说明我在什么时候听到人哭的,...

于贸骅4103when后的时态可以是一般式吗 比如when we go out ,we should try to choose the bus. -
万邢实13418268989 ______ 可以啊,你这句话就用的一般现在时表将来.也可以用一般过去式,when i was a child, i used to siwm with him.

于贸骅4103when引导时间状语从句与引导并列分句的区分怎么区分他们呢?比如两个句子It rained when we have planting trees.复合句We were planting trees when it ... -
万邢实13418268989 ______[答案] We were planting trees when it rained.We had planted trees when it rained.We were going to plant trees when it rained.如果前面的句子的动词形式是上面三种情况,那么wheny引导的从句就是并列句,这种句型通常...

于贸骅4103帮我总结一下,when,that,what,which的用法,谢谢了 -
万邢实13418268989 ______ WHEN是时间,THAT是这里,WHAT是什么,,WHICH是对的

于贸骅4103强调句型有it is ...when 强调句型有it is ...when it is ...where it is ...who 这3种句型吗? -
万邢实13418268989 ______[答案] 没有. 强调句型只有it is ...that和it is ...who 当强调部分是人时,使用who或者that 强调其他的成分,都用that

于贸骅4103when 和if 引导主现从现(我感觉看到过很多次但是语法书上都没有例句) 除了情态动词和祈使句的 -
万邢实13418268989 ______ Sample sentences when 和if 引导主现从现: 1 John will come and join us when / if he is free tomorrow. 2 What will happen if / when they don't help us as they have promised? 情态动词和祈使句的主现从现: 1 I must go and see him if / when I'm free next week. 2 Come and see us if / when you happen to be in Shanghai, will you?