2022年新目标英语中考知识点总结中考知识点总结--状元从句.docx
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1、精选学习资料 - - - - - - - - - 新目标英语中考学问点总结-状元从句状语从句指句子用作状语时,起副词作用的句子;它可以修饰谓语、非谓语动词、定 语、状语或整个句子;依据其作用可分为时间、地点、缘由、条件、目的、结果、让步、方式和比较等从句;状语从句一般由连词从属连词 引导,也可以由词组引起;从句位于句首或句中时通常用逗号与主句隔开,位于句尾时可以不用逗号隔开;一、时间状语从句 要点 : 时间状语从句,由以下连词引导:when while as after before as soon as since till /until by the time 在时间状语从句中,要注 意时
2、态一样;一般情形下主句是将来时的时候,从句要用一般现在时;1.when 当 的时候 Mozart started writing music when he was four years old. 当莫扎特的时候,开头写音乐作品;2.while 当 时 He visited a lot of places while he was traveling. 他在旅途中参观了很多地方;3.as 在;的同时;一边 一边 He smiled as he stood up. 他一边站起来一边笑着;4.after 在 之后 He left the classroom after he had finishe
3、d his homework the other day. 前几天做完作业之后回的家;5.before 在 之前 Mr. Brown had worked in a bank for a year before he came here. 布朗先生来这之前已经在一家银行里工作一年了;6.as soon as 一 就 We began to work as soon as we got there. 我们一到那就开头工作;名师归纳总结 - - - - - - -第 1 页,共 9 页精选学习资料 - - - - - - - - - I will write to you as soon as I
4、 get home. 我一到家就给你写信;7.since 自;以来到现在说话时间 为止的一段连续时间;主句一般用现在完表示自过去的一个起点时间到目前成时,从句用一般过去时;Mr GREen has taught in that school since he came to China three years ago. 自格林先生来中国以来,他就在这所学校教书;仍可以用作介词,本句从句仍可以用短语:8 till /until since three years ago自三年前以来 表示; 都可以作连词,连接时间状语,也可以作介词,与其它词构成介词短语,在句中作状 语;They walked t
5、ill /until it was dark. 他们始终走到天黑;Xiao Ming didn t leave home till / until his father came back. 小明直到他爸爸回来才离开家;9. by the time 到;为止所在句子的主句应用完成时 By the time he gets there , his father has already gone. 他到家的时候,他爸爸已经走了;By the time I got to school, the class had already began. 我到校时,已经开头上课了;难点 as when whil
6、e 的辨析 as when while 都表示主、从句动作同时发生,三者差异如下:表示“ 一边; ;一边的意思 as 强调两个动作同时进行,并表示对比时 用于发生时间较段时 when 1、仍可以表示从句动词的动作在主几句动词的动作之前或之后发生;2、whenand then; at that moment 正在那个时候 名师归纳总结 - - - - - - -第 2 页,共 9 页精选学习资料 - - - - - - - - - while 1、用于时间较长时 2、 强调两个动作同时进行,并表示对比时有时这三个连词可以互换,有时不行以;It was raining hard when as I
7、 got there. 我到那里时,正在下大雨; 动作同时发生,when 可换为 as, 但不能换为while ,因为 get 是点动词 . When I had read the article, he called me. 我看完这篇文章之后,她给我打了电话;只能用 when 从句动作发生在主句之前,留意时态表达,When I got to the cinema, the film had begun. 当我到了电影院时,电影已经开演了;从句的动作发生在主句之后,只能用when,并要留意时态 He was about to leave, when the telephone rang. 将
8、”他刚要离开,突然电话响了; 此时不能放在句首;主句动词一般表达“ 正在”“ 即. while, as 不能代替 考点She thought I was talking about her daughter, while, in fact, I was talking about my daughter. 他以为我在谈她女儿,然而,实际上在谈论我女儿;表转折,对比,when, as 都不能代替它 考点lWhile the alien was buying a souvenir, the girl called the police. 外星人买纪念品时,那女孩给警察打了电话;表示主句,从句的动作
9、同时发生,while后引导的状语从句的动词必需是连续动词不能是点动词,由于它表示较长时间 考点Mother was worried BECause little Alice was ill, especially as when/ while father was away. 妈妈担忧,由于小爱丽丝病了,特殊是他父亲不在家的时候;此时 as ,when, while 可通用 学问扩展名师归纳总结 - - - - - - -第 3 页,共 9 页精选学习资料 - - - - - - - - - 1. It is since 从;以来多长时间了由于 since +从句或名词,表示一段时间 It i
10、s five years since we met last time. 从我们上次见面已经五年了;2. It is +before ;才 It was a long time before I went to sleep again. 过了很长时间我才睡着;It was an hour before until the police arrived. 过了一个小时,警察才来;二、条件状语从句要点:表示状语从句由连词 if, unless =if not 引导;1.If it doesn t rain tomorrow, we will go hiking. 假如明天不下雨 , 我们就去远足
11、. 2.You will get good grades if you study hard. 假如你努力学习,就会取得好成果. 3.I will go to the party unless he goes there too. 我不会去参与聚会的 , 除非他也去 .假如他不去 ,我也不去 . 4.You will be late unless you leave immediately. 假如你不立刻走 ,你将会迟到的 .=If you don t leave immediately, you will be late. 难点提示:用条件状语从句时要留意时态的正确使用 ,当主句是将来时的时
12、候 ,从句要用一般现在时 . He will not leave if it isnt fine tomorrow. 一般将来时,一般现在时They are going to have a picnic if it doesn t rain next week. 一般将来时 , 一般现在时 考点三、缘由状语从句要点 : 由连词 BECause, since, as引导 , 也可由 for, now that 等词引导1.I didn t go to school yesterday BECause I was ill. 我昨天没去上学,由于我生病了;名师归纳总结 - - - - - - -第
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