2023年中考英语状语从句课件

状语从句 在复合句中起状语作用的从句叫状语从句。有的状语从句可以在主句前(其后常用逗号与主句隔开),有的状语从句可以在主句后(其前不用逗号与主句隔开),有的既可以在主句前又可以在主句后。状语从句通常由一个连词或由一个起连词作用的词组引导。状语从句可以表示时间、地点、原因、目的、结果、条件、方式、让步、和比较9种意义。 (一) 时间状语从句 引导时间状语从句的连词和词组有:when, while, as(当……时);as soon as, the moment, directly, instantly, immediately(一 ……就);until, till(直到……);before(在……以前);after(在……以后);since, ever since(自……以来);once(一旦);whenever(任何时候);every time, each time(每次)。 When we live in town we often went to the theatre. 我们在城里住时常常去看戏。 I didn’t know any English before I came here. 我来这儿以前一点英语也不懂。 After he left school, he went to Xizang. 他离开学校后到西藏去了。 We must strike while the iron is hot. 我们要趁热打铁。 As the sun rose the fog disappeared. 太阳出来时雾就消散了。 Tell him as soon as he arrives. 他一来就告诉他。 I haven’t heard from him since he left. 他走之后我还没接到过他的来信。 They didn’t come back until it was dark.他们直到天黑才回来。 Whenever she had a cold, she ate only fruit. 每当感冒了她只吃水果。 Every time I listen to music I’ll think of it. 每当我听音乐,我就想起这事。 The moment I saw him I knew that there was no hope. 我一看到他,就知道没有希望了。 I came immediately you called. 你一打电话我就来了。 I had no sooner checked into the hotel than he arrive.我一住进旅馆他就到了。 有时从句中可省略一些词: Often she would weep when(she was)alone. 她一个人时,常常哭泣。 Even as a boy he was hopeless at maths. 小时侯他数学就很差。 Whenever possible, they should be typed. 每当可能,就应把它们打出来。 在before , after , since 之后可用名词或动 名词(这时他们是介词): She waited a little while before making up her mind. 她等一会儿才做出决定。 After sending you that letter I recollected how stupid I was. 把信寄给你之后我想起我多么愚蠢。 在时间状语从句中,应该用一般将来时的,常用一般现在时;该用过去将来时的,常用一般过去时;该用将来进行时的,常用 现在进行时: I will tell him when he comes back. 他回来时我就告诉他。 I said I would tell hem when he came back. 我说他回来时我就告诉他。 1、when , while , as 这三个词都表示主句和从句动作同时发生,常可换用。 (1)when 既可指某一时间点,也可指一段时间;while 强调一段时间,所以从句的谓语动词常是延续性的;as 强调主句和从句的动 作相并发生,常可译作“一边……一边”: When he returned, his wife was cooking. 他回来时,他妻子在烧饭。 While he was reading(或read), his wife was cooking(或cooked). 他看书时,他妻子一直烧饭。 As he was reading(或read), he was listening(或listened) to the radio. 他边看书边听广播。 (2) when 和 as 常表示从句动