当前位置：文档之家 › C3 Unit 1 条件状语从句+现在完成时

C3 Unit 1 条件状语从句+现在完成时

  • 格式：docx
  • 大小：255.96 KB
  • 文档页数：4

条件状语从句、连词和现在完成时一、条件状语从句主将从现（主句为一般将来时或祈使句时，从句用一般现在时）1.I’ll visit the great wall if it doesn’t rain tomorrow.2.If I don’t get enough sleep, I will not be able to concentrate at school.e your head, and you’ll find a way.=if you use your head, you’ll find a way.4.Give me a call once you arrive at the airport.5.Once I finish my work I will call you.6.I won’t remember new vocabular ies unless I write them down.条件状语从句的连词有：If, once, unless二、连词1）、并列连词：And, both…and, as well as, not only…but also, neither…norShe can speak both English and French.My father bought me a present, and I like it very much.He can speak not only English but also French.2）、转折连词：But, yet, whileThe doctor tried to save the patient, ___they failed.Lucy likes red while Lily likes white.3）、表示选择关系的连词Either…or, neither…nor, orStudy hard, or you’ll fail the exam.（否则）You can visit the museum now or we can do it later.You can neither know nor understand everything in a few hours.（既不…也不）You either stay at home or go shopping with me.（要么…要么）4）、表示因果关系的连词和并列句：For, because, so, thereforeI have to stay up late, for I have lots of homework to do. (因为)She worked until midnight yesterday, she is very tired today.三、现在完成时构成: have/has +过去分词done标志词：注意：since, for+一段时间时，have/has必须加持续性动词。

Buy---have, borrow---keep, leave----be away from, join----be in, die----be dead，begin----be on大部分的瞬间动词都可以转化为be+形容词。

我离开这所学校八年了他借用我的词典已经两天了。

一、中译英1.如果明天下雨，我们就不去野餐。

rains tomorrow, we go on picnic.2.我每天都会去散步，除非遇上坏天气。

weather stops me, I every day.二、Complete the sentences with if, once or unless.3.you have confidence in yourself, you’ll learn English better.4.Please call me you arrive home.5.we study harder, we won’t do well on the exam.6.You’ll remember words better you are in a good mood.7.I finish reading this novel, I’ll lend it to you.8.We won’t catch the first bus we get up earlier.(2014北京一模的连词和时态题)25. Lisa was late for school today______ she didn’t catch the early bus.A. andB. butC. orD. because31. Lucy _______ her cat and now she is washing it.A. findsB. is findingC. has foundD. will find30. I ______ you a copy of the report as soon as I finish it.A. sendB. sentC. will sendD. has sent31. My uncle is a writer. He ______ many books since he was young.A. writesB. wroteC. is writingD. has written33. The park gates ______ at 10:00 every evening.A. lockB. lockedC. are lockedD. were locked24. Our classroom is not big，_______ it’s very clean.A. andB. butC. orD. so32. Mr. Brown _____ in this factory since he was twenty-four years old.A. worksB. workedC. will workD. has worked33.A book fair _____ in Chaoyang Park last month.A. holdB. heldC. is heldD. was held32. Gina a lot_____ since she joined the art club.A. learnsB. learnedC. will learnD. has learned32.—I didn't know you were friends with Mr. Smith.—We ____ each other for 6 years.A. knewB. are knownC. have knownD. will know24. I was feeling hungry, ____ I bought myself a sandwich.A. butB. soC. orD. because25. I want to buy some postcards in the shop, ______ I don’t have enough money.A. butB. andC. orD. so29. Mr. Green, a famous writer, ______ our school last month.A. visitedB. visitsC. is visitingD. will visit31. Tony knows China very well because he ______ in China for twenty years.A. worksB. was workingC. will workD. has worked32. The boy ______ home by the police last Sunday.A. is takenB. was takenC. has takenD. will take27. M ary is very tired, ____she doesn't want to go to bed.A. orB. butC. soD. and29. —Where will you go tomorrow?—We'll go to Beihai Park if it ____ tine.A. isB. wasC. has beenD. will be32. A nthony and Tom are good friends. They ____ each other for twenty years.A. knewB. knowC. have knownD. will know1.—Why are you worried?—I’m expecting a call from my daughter. She New York for three days.A. has gone toB. has been toC. has been inD. has come in2. —What did you do last night?—I _________TV and read books.A. watchB. watchedC. have watched3. —Look at these stamps. I them for five years.—Wow, they are wonderful.A. keptB. have keptC. have bought4. —Do you know who took the students to the old people’s home, Tony?—Well, Mr. Smith _______.A. tookB. doesC. didD. do5. —I’d like you to tell me something about Shen Nongjia.—I’m sorry, but neither Jack nor I ____ there. xK b1 .C omA. have beenB. had beenC. have goneD. has gone。

合集下载

英语语法专题条件状语从句(讲解+练习,无答案)

英语语法专题条件状语从句(讲解+练习,无答案)

A. IfB. UnlessC. WhetherD. When
5. I won’t get to the party on time _____ I catch the first train tomorrow morning.
A. IfB. UnlessC. WhetherD. When
6. —Shall we go on a picnic this weekend? —Good idea! Unless it _____.
If I start after dinner, I’ll finish it before I go to bed.如果我晚饭后开始，睡觉前我就能完成。
主句也可用“情态动词+动词原形”
She may come with us if she arrives in time.如果她来得及时，就可以和我们一起去。
If you want to know more about it, call now.如果你想了解更多内容，现在就打电话吧。
Make sure you visit the Science Museum if you ever go to London.如果你去伦敦，一定要去参观科学博物馆。
2、主将从现
2. We will go camping if it _____ tomorrow.
A. Won’t rainB. didn’t rainC. doesn’t rainD. isn’t raining
3. I’m waiting for my friend. If he _____, I _____ swimming alone.
Take enough money with you, _______ _______ _______ buy the dictionary.
英语语法：状语从句归纳整理

英语语法：状语从句归纳整理

状语从句在复合句中，充当状语的从句叫作状语从句，一般修饰谓语动词或整个主句。

状语从句一般可分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句、比较状语从句和方式状语从句等。

一、时间状语从句在复合句中起时间状语作用的从句称为时间状语从句，可放在句首、句中或句尾。

（二）until 和 till的用法1.肯定句：主句的谓语动词必须是延续性动词，主句、从句都为肯定式，意为“直到……为止”；2.否定句：主句的谓语动词必须是非延续性动词，从句为肯定式，表示“某动作直到某时才开始”；3.till 不可以置于句首，而until可以。

例：They waited till / until I returned.他们一直在等我回来。

You may stay here until / till the rain stops.你可以待在这里直到雨停。

He won’t go to bed until / till she returns.直到她回来，他才上床睡觉。

Until you told me I had no idea of it.直到你告诉我，我才知道这件事。

（三）since的用法（四）before的用法一般情况下before表示“在……之前”，有时根据上下文，还可表示“还未……就……” “不到……就……” “……才……” “趁……还未……”等例：Please write it down before you forget it.趁你还没忘，请把它记下来。

I must finish this letter before I go home.我必须在回家之前完成这封信。

Before I could get in a word, he had measured me.我还没来得及插话，他就给我量好了尺寸。

We had sailed four days and four nights before we saw land.我们航行了四天四夜才看到陆地。

现在完成时代替将来完成时条件状语从句

现在完成时代替将来完成时条件状语从句

现在完成时代替将来完成时条件状语从句在这充满活力的城市里，大家都在忙着追逐自己的梦想。

说真的，有时候我真的觉得这就像一场马拉松，谁能跑得快，谁就能赢。

你想啊，早上起床，阳光洒在窗帘上，外面的鸟儿在唱歌，心里总会想：“今天我一定要做点什么特别的事！”然后，拿起咖啡，咕咚一口，哎呀，感觉整个世界都在等着我去征服。

计划得特别美好，结果却像过期牛奶一样，呜呜。

比如，有一次我跟朋友说：“哎，咱们下个月去旅行吧！”心里想着美丽的海滩和阳光。

但等到真的要出发的时候，发现，天呐，账单都堆成小山了。

说好不说坏，这钱呀，真是比海绵还会吸水！我朋友一脸无奈：“要是我们早点存钱就好了。

”可见，光说不练，后果很惨啊！还有一次，我本想提前做好功课，结果这“功课”就像小老鼠，跑得飞快。

我心里想着：“明天就开始复习。

”谁知道“明天”变成了“后天”，后天又变成了“下周”。

最后考试前一晚，我像打了鸡血一样，拼命地翻书，像个小蚂蚁似的。

脑子里一片混乱，连“鸟”都分不清是“叫”的还是“飞”的。

回头想想，如果当初我能好好规划，做到“早起的鸟儿有虫吃”，现在一定轻松多了。

结果呢，老天爷对我真是不薄，偶尔给我点小惊喜。

就比如那次，我刚准备放弃，突然收到一个邮件：“恭喜你，中奖了！”一瞬间，心情就像打了兴奋剂，开心得像个孩子。

说真的，人生有时候就是这样，峰回路转，让人捉摸不透。

再说说工作吧。

每天走进办公室，看到同事们忙得不可开交，我就忍不住想：“哎，真是个热闹的地方。

”大家都在打拼，脸上的表情就像五味杂陈，开心、无奈、疲惫，样样都有。

我常常开玩笑说：“我们这一群人，简直就像一锅煮得沸腾的火锅。

”每个人都有自己的故事，有时听着听着，我会忍不住哈哈大笑，仿佛把烦恼都抛到九霄云外。

说到聚会，哎哟，那更是个大场面。

每次聚会，大家围坐一圈，酒杯碰撞，笑声不断，感觉生活真是无比美好。

有人一喝多了，开始抖机灵，逗得大家前仰后合。

说实话，那些瞬间我觉得就是人生的“高兴”，所有的疲惫和烦恼都瞬间消失不见。

译林版高中英语必修2讲义Unit 1 Section Ⅲ Grammar——现在完成时和现在完成进行时

译林版高中英语必修2讲义Unit 1 Section Ⅲ Grammar——现在完成时和现在完成进行时

Section ⅢGrammar——现在完成时和现在完成进行时一、现在完成时1．现在完成时的用法(1)表示过去发生的动作产生的结果或对现在造成的影响。

动作虽然发生在过去，但落脚点在现在。

I've forgotten his telephone number.我忘记了他的电话号码。

(没法联系他了)I haven't finished reading this book yet，so I can't return it to the library.这本书我还没有看完，所以不能把它还给图书馆。

(2)表示动作或状态从过去某时开始一直延续到现在，并可能延续下去。

常与so far，by now，up to now，since，for a long time，up till now，in the past/last few years 等表示一段时间的状语连用。

He has worked here for twenty years by now.到现在为止，他已经在这儿工作20年了。

Up to now，we have received no letters from her.到现在为止，我们没有收到她一封信。

[名师点津](1)该用法中的动词多是延续性动词，不能是非延续性动词或趋向动词。

(2)非延续性动词用于否定句可以表示否定的状态，故可以用来表示状态的持续。

(3)由since引导的时间状语中，since后面的时间名词必须是“时间点”，而不能是“时间段”；而for短语中的时间名词必须是“时间段”(有时for可省去)。

I've known him since 1980.我从1980年就认识他了。

I have learnt English (for) many years.我学英语已很多年了。

[即时演练1]用所给动词的适当形式填空①The price has gone (go)down，but I'm not sure whether it will remain so.②All the windows have been painted (paint)，and they look new.③I have read (read)many reports about the UFO recently.④In the last few years，China has made (make) great achievements in environmental protection.⑤His first novel has received (receive) good reviews since it came out last month.2．现在完成时的常用句型(1)It/This is the first/second/...time that＋主语＋谓语部分(常用现在完成时)(2)It has been＋一段时间＋since...(3)It/This/That is the＋最高级＋名词＋定语从句(定语从句常用现在完成时)It is the first time that I've heard of the story about Crop Circles.这是我第一次听说麦田怪圈的故事。