1、语法图解Section Grammar 时间状语从句和省略探究发现Some of the DJs began speaking and shouting while the music played.The moment I heard it,I knew it was a completely new kind of music.The first time that rap artists recorded their music,musicians recorded the backing tracks(the music without the singing)in the studi
2、o and the rappers added their vocals later.No sooner had he reached home than it began to rain.Hardly had I entered the room when the phone rang.Do you want to go to the movie tonight?I hope to(go to the movie)What do you think of the film(that)you saw yesterday?While(I was)at college,I began to kno
3、w him,a strange but able student.Bob has done his homework,but Tom hasnt(done his homework)He accepted the suggestion that he(should)go there by train.我的发现(1)句中黑体部分在句中引导，句为。(2)句为 no sooner.than./hardly.when.句式，表示“”，且 no sooner/hardly 位于句首时，主句要用语序。(3)句是的省略，省去了 to 后面的动词(短语)。(4)由句可知，关系词在定语从句中作时可以省略。(5)
4、句中，从句主语与主句主语一致，且从句中包含 be动词的某种形式，可以将从句的主语和 be 动词同时省略。(6)句是情态动词的省略；句省略了部分谓语及宾语。时间状语从句省略句一就倒装不定式宾语should一、时间状语从句1由 when,while,as 引导的时间状语从句when从句中的谓语动词可以是延续性动词，也可以是瞬间动词。从句的动作与主句的动作可以同时、之前或之后发生while从句中的动词只能是延续性动词，从句的动作与主句的动作同时发生as从句中的动词既可以是延续性动词，也可以是短暂性动词。侧重指从句的动作与主句的动作同时进行，常译为“一边一边；随着”When she came in,I
5、 was doing my homework.当她进来时，我正在做作业。When/while I lived with the Smiths,we used to discuss international issues together.我和史密斯一家住在一起时，我们经常一起讨论国际问题。As she grew older,she lost interest in gardening.随着年龄越来越大，她对园艺失去了兴趣。2由 till 或 until 引导的时间状语从句主句形式 主句谓语意义肯定句用延续性动词意为“直到为止”，表示主句中的动作截止到从句动作发生时否定句用短暂性动词意为“直到
6、才”，表示主句中的动作开始于从句动作发生时He waited until she had finished speaking.他一直等到她讲完。You cant go home until you finish your work.工作完成后你才能回家。名师点津(1)till 和 until 一般情况下两者可以互换，但 till 不可用于句首并且在强调句中多用 until。(2)如果将“not until.”结构放在句首，那么主句要部分倒装。It was not until the meeting was over that he began to tell me the secret.直到会
7、议结束他才开始告诉我那个秘密。Not until we pointed out their fault to them did they realize it.直到我们向他们指出，他们才意识到自己的错误。3由 since 引导的时间状语从句(1)若 since 引导的状语从句的谓语动词是非延续性动词，则从句表示的时间是“从动作开始的那一时刻起”。We have been missing them since they left here.自从他们离开这儿以来我们一直想念他们。(2)若 since 引导的状语从句的谓语动词是延续性动词或表示状态的动词，则从句表示的时间是“从延续性动作或状态结束时
8、算起”。How long is it since you lived in Shanghai?你多久不住在上海了？4由 before 引导的时间状语从句(1)before 意为“在之前”，置于主句前后均可。Before the sun sets,we must go home.太阳落山前，我们必须回家。(2)如果 before 引导的从句位于主句之后，有时不能译成“在之前”，而要译成“过了多久才”“还未就”等。The struggle lasted four years before the North won in the end.战争持续了 4 年北方才最终获胜。He almost kno
9、cked me down before he saw me.他几乎撞到我时才看见我。She left before I could have a word with her.我还没来得及和她说句话，她就离开了。It will be two years before he leaves the country.再过两年他才会离开这个国家。5由意为“一就”的词引导的时间状语从句(1)immediately,instantly,directly,the moment/instant/minute(that)作连词引导时间状语从句，相当于 as soon as，表示从句的动作一发生，主句的动作随即发生
10、。常译成“一就”。Immediately you begin to speak,he gives you his full attention.你只要一开始说话，他就会全神贯注地听。(2)hardly/scarcely.when.和 no sooner.than.也表示“一就”。主句用过去完成时，when 和 than从句中用一般过去时。当 hardly/scarcely 和 no sooner 位于句首时，主句应倒装。Hardly had we begun our walk when it began to rain.我们刚开始散步天就开始下雨了。6由名词短语引导的时间状语从句短语 the
11、first/last time,every/each/next time 等也可作连词，引导时间状语从句。Every time I catch a cold,I have a pain in my throat.每次感冒我的嗓子就疼。He was writing a letter the first time I saw him.我第一次看到他时，他在写信。7by the time 引导的时间状语从句By the time you come here tomorrow,I will have finished this work.你明天来这儿的时候，我将已经完成这项工作了。名师点津 by th
12、e time 引导的时间状语从句可用一般现在时表示将来，此时主句应使用将来完成时；当从句中用一般过去时时，主句应使用过去完成时。即时演练 111.单句语法填空By the time he was fourteen,Einstein _(learn)advanced mathematics all by himself.The discussion _(come)alive when an interesting topic was brought in.No sooner had he got to the station than the train_(leave)had learnedca
13、meleftBy the time he is 60,he _(retire)from his present position.Great changes have taken place _ you told me the technique of singing.John thinks it wont be long _ he is ready for his new job.He looked at the plane taking off _ it disappeared.will have retiredsincebeforetill/untilJack was working i
14、n the lab _ the power cut occurred.The boy burst into tears _(immediate)he saw his mother.Remember to send me a photo of us the next time you _(write)to me.whenimmediatelywrite12.单句改错How time flies!It has been two weeks after our winter vacation began._It wont be long when we have the midterm examin
15、ation._Every time when he arrived home at the end of the day,wed greet him at the door._By the time Jack returned home from England,his son graduated from college._aftersincewhenbefore去掉 whengraduated 前加 had为了避免重复，可以省略句中的一些成分，这种现象叫省略。常可省略句子中的主语、谓语动词、部分谓语(宾语)、不定式符号 to 后的动词原形及其后的词语和句子中的一部分。1省略主语(1)祈使句
16、中通常省略主语 you。(2)在口语交际中常省略交际双方都清楚的主语，如I,you,it 等。二、省略(You)Leave him in peace!不要去打扰他！(I)Dont know.我不知道。(It)Looks like rain.像是要下雨了。2省略谓语Who(comes)next?谁下一个来？Bob has done his homework,but Tom hasnt(done his homework)鲍勃已经做了家庭作业，但汤姆却没有(做家庭作业)。John was the winner in 2017 and Bob(was the winner)in 2018.约翰是 2
17、017 年的获胜者，鲍勃是 2018 年的(获胜者)。3省略表语省略表语的情况比较普遍。Are you ready?Yes,we are(ready)你们准备好了吗？是的，我们准备好了。4动词不定式的省略(1)在并列结构中为了避免重复，可省略后面的不定式符号 to。但如果句子前面出现过同样的动词，为避免重复，后面的不定式常省略动词原形，而保留不定式符号 to。It is impossible to laugh and(to)cry at the same time.同时又哭又笑是不可能的。You can do it this way if you care to(do it)如果你愿意可以这样
18、做。(2)在 let,make,have 等使役动词后和在 see,hear,observe,notice,feel,watch 等感官动词后用作宾语补足语的动词不定式一般省略 to。但变为被动语态时，to 要保留。You have made me(to)feel secure.你使我感到安全。The boy was noticed to enter the office.男孩被注意到进入了办公室。(3)but 表示“除了之外”时，其前若有实义动词 do的某种形式，but 后的不定式须省略 to。We have nothing to do but(to)wait.我们现在除了等没有别的事可做。
19、5省略句子中重复的部分在特定语境中，常省略与前面相重复的部分。Who gave you that CD?Dad(gave it to me)谁给你的那张唱片？爸爸(给的)。I lent it to someone but I cant remember who(I lent it to)我把它借给某个人了，但我记不起是谁了。If the weather is fine,we will go.If(the weather is)not(fine),(we will)not(go)如果天气好，我们就去。如果天气不好，我们就不去。名师点津 当后句与前句的用词和句式完全相同，只是前句为肯定，后句为否定
20、时，常省略后句中与前句相同的部分，只保留否定词 not。6从句中的省略(1)宾语从句中若有两个或两个以上的 that 从句时，只能省略第一个 that。(2)定语从句中作宾语的关系代词 that,which 和whom 是可以省略的。(3)在时间、地点、条件、方式、让步等状语从句中，若从句的主语和主句的主语一致，且从句中的谓语部分含有系动词 be 或状语从句中有 it is 结构时，通常省略“主语be 动词”或“it is”。He acted as if(he was)certain of success.他表现的就像一定会成功一样。Unless(this law/it is)changed,
21、this law will make life difficult for farmers.除非加以修改，否则这条法律将给农民的生活造成困难。Though(he was)exhausted,he went to bed very late.虽然他已筋疲力尽，但还是很晚才睡觉。即时演练 221.单句语法填空Did anyone notice a stranger _(come)into the bank?The next year,after _(grow)much taller,Tom entered the school basketball team eventually.These wo
22、rkers must wear their uniforms and the masks to keep the environment clean while _(work)comegrowingworkingWhen _(complete),the amusement park will be open to the public next summer.Unless _(invite)to go to his birthday party,I will buy nothing for him.22.句型转换Though his family was poor,his family man
23、aged to send him to school._ _，his family managed to send him to pletedinvitedThough poorWhile I was walking along the street,I heard my name called._ _ along the street,I heard my name called.You shouldnt come to his party unless you are invited.You shouldnt come to his party _ _.He looked everywhe
24、re as if he was in search of something.He looked everywhere _ _ _ _ _ something.While walkingunless invitedas if in search ofIf it is possible,John would like to study Chinese in Beijing in the future._ _，John would like to study Chinese in Beijing in the future.John worked hard but his brother didn
25、t work hard.John worked hard but _ _ _.If possiblehis brother didntI meant to write to you,but I forgot to write to you.I meant to write to you,but _ _ _.He hasnt finished his homework,but he ought to have finished it.He hasnt finished his homework,but _ _ _ _.I forgot toheoughtto have链接高考单句语法填空1 (2
26、017 北 京 高 考 改 编)If you dont understand something,you may research,study,and talk to other people you figure it out.解析：考查状语从句。句意：如果你无法理解某个东西，你可能会探索、研究以及和其他人交谈，直到你把它弄明白。根据句意，此处应用 until 引导时间状语从句，表示主句动作一直持续到 until 从句所表达的时间才结束。until2(2016全国卷)Over time,the population grew,people began cutting food into sm
27、all pieces so it would cook more quickly.解析：考查状语从句。句意：慢慢地，随着人口的增加(当人口增加时)，为了使食物熟得更快，人们开始把食物切成小块。根据句意可知，空格处填 as 或 when，引导时间状语从句。as/when3(2016天津高考改编)the average age of the population increases,there are more and more old people to care for.解析：考查状语从句。随着人口平均寿命的延长，越来越多的老年人需要照顾。此处 as 引导时间状语从句表示“随着”。As4(20
28、15天津高考改编)We need to get to the root of the problem we can solve it.解析：考查状语从句。句意：我们需要找出问题的根源才能解决问题。before“在之前”，在此引导时间状语从句。5(2015北京高考改编)If (accept)for the job,youll be informed soon.解析：考查状语从句的省略。句意：如果你被接受做这项工作的话，你将很快得到通知。条件状语从句中省略了的主语 you 与 accept 之间构成被动关系，故用过去分词accepted。beforeaccepted6(2014湖南高考改编)Chi
29、ldren,when(accompany)by their parents,are allowed to enter the stadium.解析：考查状语从句的省略。句意：有家长陪伴时，孩子们才被允许进入体育场。在状语从句中，当主句主语与从句主语一致，且谓语动词含有be动词或be动词的某种形式时，可以省略从句中的主语和 be。设空处的完整形式为 when they are accompanied by.，省略了 they are。accompanied演练提能.句型转换1He may not be at home then.If he is not at home,leave him a n
30、ote.He may not be at home then._ _，leave him a note.2She fell asleep while she was doing her homework.She fell asleep _ _ her homework.If sowhile doing3When Tom saw Mary for the first time,he was impressed with her._ _ _ Tom saw Mary,he was impressed with her.4Dont hesitate to call me when you are i
31、n trouble.Dont hesitate to call me _ _ _.5Immediately he came home,he told me the news._ _/_ _ he came home,he told me the news.The first timewhenintroubleAs soon as The moment6She will not go to bed until her son returns.(not until 置于句首)_ _ _ _ _ _ _ go to bed.7She opened her mouth as if she wanted
32、 to speak.She opened her mouth as if _ _.8He has nothing to do.He has to sleep.He has nothing to do _ _.Not until her son returns will sheto speakbut sleep9When they were first introduced to the market,these products enjoyed great success._ _ _ to the market,these products enjoyed great success.10Th
33、ey made the boy go to bed early.The boy was made _ _ _ bed early.When first introducedto go to.完成句子1当麦琪十五岁的时候，她已经获得了很多音乐类的奖项了。_，she had won a lot of musical awards.2每当见到有人需要帮助，我就会尽力去帮助他。_，I will spare no efforts to help him.By the time Maggie was 15Whenever I see someone in need3昨晚我下班刚回家就开始下雨了。_ hom
34、e last night from work than it began to rain.4随着时间的推移，我们更好地理解了我们周围的事物。_，we have a better understanding of things around us.No sooner had I arrivedAs time goes by5我继续工作，直到把所有的衣服洗完。I went on with my work _.6过不了多长时间我们就会再见面了。_ we meet again.7他参军已经七年了。_ he joined the army.until I finished washing all the
35、 clothesIt wont be long beforeIt is/has been seven years since.短文改错Last year,we went on exchange programme to England to make our English improved.The plane took off on time but we arrived smoothly.Before I went,I was quite proud of their English,but everyone in England spoke very fast that I couldn
36、t make out what they were saying.I wasnt even sure of whether the plane had really landed in the right country!I was in fears and wanted to go straight back home.However,things soon get better and better.The host family was very kind,and,fortunate,the boy that I was staying with was keen on football.We had fun played together.I got used to living in England in the help of my host family.答案：第一句：went on 后加 an第二句：butand第三句：theirmy;veryso第四句：去掉 of第五句：fearsfear第六句：getgot第七句：fortunatefortunately第八句：playedplaying第九句：第二个 inwith谢谢 观 看