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四因为as_because_for_since用法区别

四因为as_because_for_since用法区别
四因为as_because_for_since用法区别

“SI因为”because for as since

because, as, for, since这几个词都是表示“原因”的连词,语气由强至弱依次为:because→since→as→for;其中because, since, as均为从属连词,引导原因状语从句;而for 是并列连词,引导并列句。

1. because表示直接原因,它所指的原因通常是听话人所不知道的,其语气最强。常用来回答why的提问,一般放于主句之后,也可以单独存在。例如:

(1)I stayed at home because it rained. 因为下雨我呆在家里。

(2)Because Lingling was ill, she didn”t come to school. 玲玲因病,没有上学。

(3)——Why is she absent? 她为什么缺席?

——Because she is sick. 因为她病了。

此外,在强调句型中,只能用because。例如:

(4)It was because I missed the early bus that I was late for school. 我上学迟到是因为我没有赶上早班汽车。

2. since侧重主句,从句表示显然的或已为人所知的理由,常译为“因为”、“既然”,语气比because稍弱,通常置于句首,表示一种含有勉强语气的原因。例如:

(1)Since he asks you, you”ll tell him why. 他既然问你,那就告诉他为什么吧。

(2)Since everyone is here, let”s start. 既然大家都到齐了,我们就出发吧!

(3)Since I understood very little Jap anese, I couldn”t follow the conversation. 我日语懂得不多,因而听不懂对话。

3. as是常用词,它表示的“原因”是双方已知的事实或显而易见的原因,或者理由不是很重要,含义与since相同,但语气更弱,没有since正式,常译为“由于,鉴于”。从句说明原因,主句说明结果,主从并重。例如:

(1)We all like her as she is kind. 我们都喜欢她,因为她善良。

(2)As I had a cold, I was absent from school. 因为我感冒了,所以没去上课。

(3)As Xiaowang was not ready, we went without him. 由于小王没有准备好,我们只好不带他去了。

4. for用作连词时,与because相似,但它所表示的原因往往提供上文未交待过的情况。for不表示直接原因,表明附加或推断的理由,因此for被看作等立连词,它所引导的分句只能放在句子后部(或单独成为一个句子),并且前后两个分句间的逻辑关系不一定是因果关系,其间用逗号隔开,且for不可置于句首,for 的这一用法常用在书面语中,较正式。例如:

(1)The days are short, for it is now December. 白天短了,因为现在已是十二月份。

(2)It must have rained, for the ground is wet. (从“地面潮湿”作出“下过雨”的推测,但地湿并不一定是下雨所致, for不可以换为because。)

(3)The ground is wet because it has rained. (“下雨”是“地上潮湿”的直接原因。) 前后两个分句间有一定的因果关系时(有时很难区分是直接原因,还是推测性原因),for与because可以互换使用。例如:

(4)I could not go, for / because I was ill. 我没能去,是因为我病了。

(5)He felt no fear, for / because he was a brave boy. 他没有害怕,因为他是个勇敢的男孩

as和like的区别

as 作副词:同样地, 一样地 作介词: 1.(表示时间)当还是…的时候。 2.(表示方式)以…的身份, 以…资格, 作为。以…形式, 以作为; 以…角色, 扮演…角色; 如同, 像 3.(表示结果)成为, 看作, 看成 4.(表示目的)为了, 以…为目的 as指身份或资格等,意为作为和看作等,用于说明同一关系,即两者实为一体作连词: 1.在…期间, 当…时候 2.尽管, 即使, 虽然 3.像…一样 4.由于, 因为 5.照…方式: 6.正如,如同 as也可以作为“像……,按照……”,此时用作连词或关系词,后面常跟从句like like用于说明相似关系,即两者在形态上或性质上有相似之处,但并不等同。作动词: 1.喜欢, 喜爱 2.想要 3.喜欢做;喜欢 4.(与would 或should 连用表示客气)想,想要,希望 作介词: 1.(表示方式)如同, 像; 相似; 类似 2.(表示态度)想要, 有…的意向 3.(表示属性)像, 像…一样; 与…类似; 好像是, 看来有…可能(或迹象); 能 表明…特征, 像…才会 4.(表示列举)比如, 诸如…之类, 像…等 5.(询问意见)…怎么样 6.符合…的特点,像…才会 作形容词:相似的, 相同的 作名词: 1.相类似的人[事物] 2.喜好;爱好 作连词: 1.像…一样;如同 2.好像;仿佛;似乎 作副词: 1.和…一样,如,像

2.大概,可能 like常见搭配有:be like, like this,like that, look like 在它们充当介词,意思为:如同,像...时,分辨不清。其实它们的中文 意思虽然相同,但含义不同。as的含义是:“作为”。like的含义是:“与...比较起来很像”。请看例题: 1.Fight as men, or die as slaves? (作为)男子汉一样战斗,还是(作为)奴隶般死去? 2.We had better treat it as a joke. 我们最好把它当作(作为)玩笑。 3.She is dressed in white like a nurse. 她穿着白衣服, 像个护士。(与其他人比)。 4.The second child was like its mother in looks. 那第二个孩子长得像妈妈。(与其他孩子比)。 5. She spoke as a teacher. 她以老师的身份发言 6. She spoke like a teacher. 她讲话很像是一位老师 7. I had no success as a lawyer. 我作为律师并没有获得成功。 8. Perhaps she can acts as a spokesman for our product. 或许她可以为我们的产品 作代言人。 9. We got on together like old friends. 我们在一起相处得就像老朋友一样。 10.Ever since Jane came, she has worked like a horse. 自从珍妮来到这里,就像牛马似的在工作着。

人教版英语八年级下册试题since 和 for 的用法(用于现在完成时)

初中英语学习材料 madeofjingetieji since 和for 的用法(用于现在完成时) 表示过去已经开始持续到现在的动作或状态常用的时间状语有:for, since, how long, so far, these days等。 1. since : a).since +时间点①年代②时刻数③一段时间+ago b).现在完成时:主句(主语+have/has +延续性动词的过去分词)+ since +从句一般过去时 c) It’s +时间段+since +短暂性动词的过去式 d).时间段+has passed +since +短暂性动词的过去式 for +一段时间 练习: 用since和for填空 1) ______ two years 2) _______ two years ago 3) _______ last month 4) ______ 1999 5) _______ yesterday 6) _______ 4 o’clock 7) ______ 4 hours 8) _______ an hour ago 9) _______ we were children 10) _____ lunch time 11) ______ she left here 12). He has lived in Nanjing ________ the year before last. 13). I’ve known him __________ we were children. 14). Our teacher has studied Japanese _________ three years. 15). She has been away from the city ___________ about ten years. 16). It’s about ten years __________ she left the city. 2. for: for +一段时间= since +一段时间+ ago 3. 与时间段连用时,短暂性动词应改为相应的延续性动词。 1) come/go to ------ be at /in 2)leave ----be away from 3)buy ----have 4) borrow /lend -----keep 4)open ---be open 5)close---be closed 6) die---be dead 7) start/begin ----be on 8) join—--be in /be a member of /be a soldier 9) become –be 10) fall asleep ---be asleep 11)catch a cold – have a cold 12) have/has gone to → have been in 13) put on → wear14) finish/end → be over 15) marry → be married 练习:.短暂性转换延续性 1) His grandfather died two years ago . His grandfather has ____ ____ for two years. _____two years _____ his grandfather ____. Two years ____ ____ ____ his grandfather _____. 2) I became a teacher in 2000. I ________ __________ a teacher for _________ _________. 3) The shop closed two hours ago. The shop ________ _________ _________ for _________ _________. 4) The door opened at six in the morning. The door ________ ________ ________ for six hours. 5)He left Fuzhou just now. He _______ ________ ________ _________ Fuzhou for five minutes. 6)The film began two minutes ago. The film ____ ____ ____ for ____ ____.How time flies! 7)They borrowed it last week. They _________ _________ it since __________ __________. 8)I bought a pen two hours ago. I _________ _________ a pen for ________ __________. 9)They married in 1990. They ________ _________ __________since _________. 10)The meeting finished at six. The meeting ________ ______ ______ for six hours. 11)My brother joined the army two years ago.

because,since,as,for的用法区别

because、since、as、for的用法区别 because、since、as、for这几个词都是表示“原因”的连词,语气由强至弱依次为:because→since→as→for。其中because、since和as均为从属连词,引导原因状语从句;而for是并列连词,引导并列句。 ?because because表示直接原因,它所指的原因通常是听话人所不知道的,其语气最强。常用来回答why的提问,一般放在主句之后,也可以单独存在例如: (1)Istayed at home because it rained. 因为下雨,我呆在家里。 (2)B ecause Lingling was ill, she didn’t come to school. 玲玲因为生病,没有上学。 (3)—Why is she absent? 她为什么缺席? —Because she is sick. 因为她病了。 (4)此外,在强调句型中只能用because。例如, It was because I missed the early bus that I was late for school. 我上学迟到是因为我错过了早班车。 ?since since侧重主句,从句表示显然的或已为人所知的理由,常译为“因为、既然”,语气比because稍弱,通常置于句首,表示一种含有勉强语气的原因。例如: (1)Si nce he asks you, you’ll tell him why. 他既然问你了,那就告诉他为什么吧。 (2)Si nce everyone is here, let’s start. 既然大家都到齐了,我们就是出发吧。 (3)Since I understood very little Japanese, I c ouldn’t follow the conversation. 我日语懂得不多,因而听不懂对话。 ?as as是常用词,它表示的“原因”是双方已知的事实或显而易见的原因,由于理由不是很重要,含义与since相同,但语气更弱,没有since正式,常译为“由于,鉴于”。从句说明原因,主句说明结果,主从并重。例如:

like的用法大全

like的用法大全 今天给大家带来了like的用法,快来一起学习吧,下面就和大家分享,来欣赏一下吧。 喜欢和爱:like的用法大全 I think anybody who falls in love is a freak. Its a crazy thing to do. Its kind of like a form of socially acceptable insanity. ——Her 我觉得陷入爱河的人都是疯子。谈恋爱本来就是件疯狂的事,只不过是大众可以接受的那种。 ——《她》 一、下面我们来看看like有几种含义 adj. 1.相似的having similar qualities to another person or thing The brothers are very like. 这几个兄弟很相像。

2.相同的;同类的closely resembling the subject or original Things which seem to be like may be different. 看来相同的东西实际可能不同。 adv. 1.【口】可能,多半likely, probably 2.同样地;在相同程度上to some extent conj. 好像,如同in the same way as Even though me were friends, it was just like he didnt know me at all. 尽管我们是朋友,他表现得好像根本不认识我。 n. (冠以物主代词)同样的人(或事物);匹敌者a person or thing that is similar to another Have you even heard the like of it? 你听见过这样的事情吗? 2.爱好the things that you like

forexample,suchas,like,namely的区别及用法

for example ,such as 和like 都可用来举例,但用法有所不同。 for example 作“例如”讲时,一般只以同类事物或人中的“一个”为例,作插入语,用逗号隔开,可置于句首、句中或句末。 For example ,air is invisible. 例如,空气是看不见的。 He,for example ,is a good student. 例如,他就是个好学生。 such as 也作为“例如”讲,用来列举同类人或事物中的几个例子。 Some of the European languages come from Latin ,such as French ,Italian and Spanish. 有些欧洲语言来源于拉丁语,例如,法语、意大利语和西班牙语。 Boys such as John and James are very friendly. 像约翰和詹姆斯这样的男孩都很友好。 like 也常用来表示举例,可与such as 互换。但such as 用于举例可以分开使用,此时不可与like 互换。Some warm-blooded animals ,like/such as the cat ,the dog or the wolf ,do not need to hibernate. 一些温血动物,像猫、狗和狼都不需要冬眠。 He has several such reference books as dictionaries and handbooks. 他有几本像字典、手册之类的参考书。 注意:使用such as 来举例子,只能举出其中的一部分,一般不能全部举出。若全部举出,要改用namely (意为“即”)。 He knows four languages ,namely Chinese ,English ,Russian and French. 他精通四门语言,即汉语、英语、俄语和法语。 自我测试根据句意,用for example ,such as 或like 填空。 1. Noise ,,is a kind of pollution. 2. I like drinks tea and soda. 3. ,my full name is James Allen Green. Green is my family name. 4. You can buy fruit here —oranges and bananas ,. 5. There are several people interested ,Mr Jones and Mr Simpson. 答案:example such as example example

中考英语:since与for用法

现在完成时态中的since 与for 1. 实例: We have studied English for more than 2 years. 我们学英语已有两年多时间了。 She has been ill since last Sunday. 她从上周星期天一直病到现在。 2. 用法说明: (1) 介词for 短语表示一个时间段,指某个动作或情况到现在为止已持续了多久,提问时用how long;since 作为介词,接一个时间名词,作为连词,引导一个时间状语从句(从句动词一般是短暂性动词),since 表示“自…以来”,指某个动作或情况从过去某一点时间一直持续到现在,因此,与for 或since 引出的时间状语连用的句子(或主语)谓语动词必须是持续性的(如上面两句中的动词study 和be) (2) 英语中有些动词的意义不能持续,表示的是一瞬间就结束的动作,这些动词被称为非持续性动词或短暂性动词,常见的如come, leave, go, lose, see, begin, start, arrive, bec ome, die, buy, borrow, close, join, reach, fall, get up 等。这类动词可以用于完成时态,但在肯定句中不能与表示动作延续的时间状语for 或since 短语连用。如:正:He has come back. 他已回来。 误:He has come back for three days. 若要表示“他回来已三天了”这样的意思,可以将动词改为延续性动词,或改变时间状语,或改用别的句型等,如译为: He has been back for three days. (改变谓语动词) He has been back since three days ago. (改变谓语动词) He came back three days ago. (改变时间状语及动词时态) It’s three days since he came back. (改变句型) (3) 非持续性动词用于完成时态,在肯定句中不能与for 或since引出的短语(或句子)连用,但在否定句中是可以的,因为一个非延续性动词一旦被否定即成为状态,而状态总是可以延续的。如:(https://www.doczj.com/doc/1e12824382.html,) I haven’t seen him for a long time. 我很久没见到他了。 He hasn’t come here for some time. 他有段时间没来了。 I haven’t heard from her since she left. 自他离开以后,我一直没收到她的来信。

like such as和for example的用方法区别

like, such as和for example的用方法区别 来源:澳际英语学校作者:张凡(Nicole)2012年02 月15日 for example,such as和like都可用来举例,但用法有所不同。 1. for example作“例如”讲时,一般只以同类事物或人中的“一个”为例,作插入语,用逗号隔开,可置于句首、句中或句末。For example,air is invisible. 例如,空气是看不见的。He,for example,is a good student. 例如,他就是个好学生。 2. such as也作为“例如”讲,用来列举同类人或事物中的几个例子。Some of the European languages come from Latin,such as French,Italian and Spanish. 有些欧洲语言来源于拉丁语,例如,法语、意大利语和西班牙语。Boys such as John and James are very friendly.像约翰和詹姆斯这样的男孩都很友好。 3. like也常用来表示举例,可与such as互换。但such as用于举例可以分开使用,此时不可与like互换。Some warm-blooded animals,like/such as the cat,the dog or

the wolf,do not need to hibernate. 一些温血动物,像猫、狗和狼都不需要冬眠。He has several such reference books as dictionaries and handbooks. 他有几本像字典、手册之类的参考书。 4. 由于like本意是“象...一样”,因此更加强调情景的相似性,重在例证。 Things like glass, paper, and plastic can all be recycled.(强调情景的相似性,而非列举事物) 5. 使用such as来举例子,只能举出其中的一部分,一般不能全部举出。若全部举出,要改用namely或者that is (意为“即”)。另外such as不能与and so on连用。He knows four languages,namely Chinese,English,Russian and French. 他精通四门语言,即汉语、英语、俄语和法语。 根据句意,用for example,such as或like填空。 1.Noise,____,is a kind of pollution. 2. I like drinks,____tea and soda. 3. ____,My full name is James Allen Green.

as...as的用法

as...as的用法 as...as意为"和……一样",表示同级的比较。使用时要注意第一个as为副词,第二个as 为连词。其基本结构为:as+ adj./ adv. +as。例如: (1)This film is as interesting as that one.这部电影和那部电影一样有趣。 (2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。 其否定式为not as/so +adj./ adv. +as。例如: This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。 若有修饰成分,如twice, three times, half, a quarter等,则须置于第一个as之前。例如:Your bag is twice as expensive as mine.你的袋子比我的贵一倍。 几个关于as...as的常见句型: (1)as...as possible Please answer my question as soon as possible.请尽快回答我的问题。 (2)as...as usual/before She looks as pretty as before.她看起来和以前一样漂亮。 (3)as long as... (引导条件状语从句) It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。 (4)as far as He walked as far as the railway station yesterday evening.昨天傍晚,他一直散步到火车站。 (5)as well as She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。 一些带有as...as结构的常见短语归纳: as busy as a bee像蜜蜂一样忙碌as easy as ABC像ABC一样容易as deep as a well像井一样深 as light as a feather像羽毛一样轻as soft as butter像黄油一样软as rich as a Jew像犹太人一样富裕 一、“as(否定句中可用so)+adj./adv.+as…”,其基本意思为“……和……一样”。但在实际应用中,此结构在不同的语境中含义差异较大。 1、表示不同人或物同一性质的比较,意为“……和……一样……"。 The tree is as tall as the building(is).这棵树和那栋楼一样高。 Michael is as bright as George(is).迈克尔和乔治一样聪明。 2、表示同一个人或物不同性质的比较,意为“既……又……” Alice works as happily as(she)plays(happily).艾丽丝愉快地工作,尽情地玩。 Danny is not so wise as he is witty.丹尼为人风趣,但欠明智。 3、用于表示两个人或物不同性质的比较,表示程度相同或相当,意为“……而……”。 He was as handsome as his wife was beautiful.他长得非常英俊,他的妻子也长得非常漂亮。 He was as experienced as his brother was green.他经验丰富,而他兄弟却涉世未深。 二、as…as结构的另一种形式是“as much/many+名词+as+从句”。 Mary has written as many essays as her brother.玛丽写的文章篇数和她弟弟一样多。 It is as much your fault as your wife’s.这既是你的过错,也是你妻子的过错。 Henry is as much a hypocrite as·John.亨利跟约翰一样是个伪君子。 三、若有修饰成分,如twice,three times,half,a quaer等,必须置于第一个as之前。 You are not half as clever as you think you are.你可不像自己想象的那么聪明。 She isn’t going out with a man who is twice as old as she. 她不打算和一个比她大一倍的人出去散步。 You’ve made just as many mistakes as I have.我和你犯的错误一样多。

just like和just as的差别

just like和just as的差别? 上海翻译公司作者:tianhong021 更新日期:2009-10-20 just like: adv. 正如(几乎与...一样) That baby looks just like her father! 那婴儿真像她父亲. But I like singing, I like to be on the stage, just like I have returned my home. 不过我自己也是蛮喜欢唱歌的,在舞台上面的感觉,就像回到家里。 just as Just as water is the most important of liquids, so air is the important of gases. 空气是气体中最重要的一种,正如水是液体中最重要的一种一样。You should take an umbrella just as a precaution.你该带把伞,有备无患。这两个后都可跟句子或词语,表示“正像、正如”时可互换。 as与like是英语中常见的两个词.他们的语义和用法很多.在语义上者两个词都可以当"像......"."正如......"讲.说明人与人.物与物.动作与动作.状态与状态之间的相似之处.但其语法结构却是不一样的. 一.当[像"讲时.语法结构的不同之处是: 1.as作连接词.她引导比较状语从句和方式状语从句.而且这两种从句通常为省略句.例如: 1.She is a fine singer. as her mother used to be. 2.There is as much water in this cups in that one. 2.like作介词.例如: 3.My sister sin''t much like me. 4.The robot can''t work like man. 如果需要加强语气.再这两个词之前加上just之类的词即可.例如: 5.All the plants and animals need air just as they need water.

Since-和-for-的用法及区别

S i n c e-和-f o r-的用 法及区别 -CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN

Since 和 for 的用法及区别: 一,since 的四种用法 1,since + 过去一个时间点(如具体的年、月、日期、钟点、ago. 1990 , last month , half past six I have been here since 1990. 1990起,我一直在这儿。 2,since+ 一段时间+ago I h a v e b e e n h e r e s i n c e f i v e m o n t h s a g o。自从五个月前,我已经在这儿了。 3,since+从句Great Changes have taken place since you left. 自从你走后,已经发生了很大的变化。 4,It is +一段时间+since从句 I t i s t w o y e a r s s i n c e I b e c a m e a n E n g l i s h t e a c h e r.我成为英语老师有两年了。 二,Since 和for区别 1,Since +时间点,具体时间 “自从、、、、以来,从、、、以后”用来说明动作起始时间 I have been in Beijing since 2010. 2,For + 时间段,用来说明动作延续时间长度,因此句中的谓语动词,也应该是延续性动词。 I have been in Beijing for one year。 We have learnt English for about three years. I have been here for 3 days. (对) I have arrived here for 3 days.(误) 三,延续性动词和终止性动词的概念 英语中,动词按其动作发生的方式、动作发生过程的长短,可分为延续性动词和终止性动词。 延续性动词 表示能够延续的动作,这种动作可以延续下去或产生持久影响。如:

as because for since用法区别

because, as, for, since这几个词都是表示“原因”的连词,语气由强至弱依次为: because→since→as→for;其中because, since, as均为从属连词,引导原因状语从句;而for 是并列连词,引导并列句。 1. because表示直接原因,它所指的原因通常是听话人所不知道的,其语气最强。常用来回答why的提问,一般放于主句之后,也可以单独存在。例如: (1)I stayed at home because it rained. 因为下雨我呆在家里。 (2)Because Lingling was ill, she didn”t come to school. 玲玲因病,没有上学。 (3)�Why is she absent? 她为什么缺席? �Because she is sick. 因为她病了。 此外,在强调句型中,只能用because。例如: (4)It was because I missed the early bus that I was late for school. 我上学迟到是因为我没有赶上早班汽车。 2. since侧重主句,从句表示显然的或已为人所知的理由,常译为“因为”、“既然”,语气比because稍弱,通常置于句首,表示一种含有勉强语气的原因。例如: (1)Since he asks you, you”ll tell him why. 他既然问你,那就告诉他为什么吧。 (2)Since everyone is here, let”s start. 既然大家都到齐了,我们就出发吧! (3)Since I understood very littl e Japanese, I couldn”t follow the conversation. 我日语懂得不多,因而听不懂对话。 3. as是常用词,它表示的“原因”是双方已知的事实或显而易见的原因,或者理由不是很重要,含义与since相同,但语气更弱,没有since正式,常译为“由于,鉴于”。从句说明原因,主句说明结果,主从并重。例如: (1)We all like her as she is kind. 我们都喜欢她,因为她善良。 (2)As I had a cold, I was absent from school. 因为我感冒了,所以没去上课。 (3)As Xiaowang was not ready, we went without him. 由于小王没有准备好,我们只好不带他去了。 4. for用作连词时,与because相似,但它所表示的原因往往提供上文未交待过的情况。for 不表示直接原因,表明附加或推断的理由,因此for被看作等立连词,它所引导的分句只能

such as、like 和 for example 的用法区别

一、sush as 和like 一个比较细微的差别是:such as 暗示包含,意为“如…”,而like 暗示的是比较,意为“像…”,例如: Chuck enjoys desserts such as brownies, cheesecake, and macaroons. 查克喜欢甜点,如布朗尼、芝士蛋糕和杏仁饼。 Chuck enjoys desserts like brownies, cheesecake, and macaroons. 查克喜欢吃甜点,像布朗尼、芝士蛋糕和杏仁饼。 解析:以上两句对很多语法学家或是写作老手来说都是可接受的,但是这里用such as 更好,因为当你表示Chuck enjoys desserts like brownies 时,实际上是在暗示Chuck 不喜欢brownies,而只是喜欢跟brownies 相似味道的甜点。 又如: Characters like Cinderella, Dracula, and Frankenstein continue to appear in movies and novels. 像灰姑娘、德古拉和弗兰肯斯坦等角色继续出现在电影和小说中。 解析:此句的意思告诉我们,像Cinderella, Dracula, and Frankenstein 这样的角色。 Jill would love to travel to several European cities such as London, Florence, and Athens. 吉尔很想去几个欧洲城市旅行,如伦敦、佛罗伦萨和雅典。 解析:此句的意思告诉我们,吉尔很想去包含伦敦、佛罗伦萨和雅典在内的欧洲城市。 Doctor Coughlin dreads seeing patients like Mrs. Carbuncle. 考夫林医生害怕见到像卡伯太太这样的病人。 解析:此句的意思告诉我们,Doctor Coughlin 害怕见到像Mrs. Carbuncle 这样的病人。 1、以下例句不能用like,例如: I have been to some great cities in California such as Los Angeles and San Francisco. 我去过加利福尼亚的一些大城市,如洛杉矶和旧金山。 解析:此句若把such as 改为like,句意就不合理,此处只是例举去过的几个大城市,没有暗示比较的含义。 2、以下例句不能用such as,例如:

现在完成时Since和for的用法

现在完成时Since和for的用法 Since 和for 的用法 表示过去已经开始持续到现在的动作或状态常用的时间状语有:for, since, how long, so far, these days等。 Since+过去点的时间,for+一段时间(数词+量词),此划线部分用how long提问。 一、since短语或从句表示过去的动作延续至今,since之后的时间为一点。如: Mr. Smith has worked here since 1984. 1984年以来,史密斯先生一直在这工作。 He’s learned about 5,000 English words since he went to college. 他上大学以来大约学了五千个英语单词。 二、for短语表示动作延续多长时间,for的宾语为时间段。如: We have known each other for twenty years. 我们认识有二十年了。 I haven’t seen her for a long time. 我好久没有见到她了。 练习:用since和for填空 1) ______ two years 2) _______ two years ago 3) _______ last month 4) ______ 1999 5) _______ yesterday 6) _______ 4 o’clock 7) ______ 4 hours 8) _______ an hour ago 9) _______ we were children 10) _____ lunch time 11) ______ she left here 1. He has lived in Nanjing ________ the year before last. 2. I’ve known him __________ we were children. 3. Our teacher has studied Japanese _________ three years. 4. She has been away from the city ___________ about ten years. 5. It’s about ten years __________she left the city. 2.短暂性转换延续性

四因为as_because_for_since用法区别

“SI因为”because for as since because, as, for, since这几个词都是表示“原因”的连词,语气由强至弱依次为:because→since→as→for;其中because, since, as均为从属连词,引导原因状语从句;而for 是并列连词,引导并列句。 1. because表示直接原因,它所指的原因通常是听话人所不知道的,其语气最强。常用来回答why的提问,一般放于主句之后,也可以单独存在。例如: (1)I stayed at home because it rained. 因为下雨我呆在家里。 (2)Because Lingling was ill, she didn”t come to school. 玲玲因病,没有上学。 (3)——Why is she absent? 她为什么缺席? ——Because she is sick. 因为她病了。 此外,在强调句型中,只能用because。例如: (4)It was because I missed the early bus that I was late for school. 我上学迟到是因为我没有赶上早班汽车。 2. since侧重主句,从句表示显然的或已为人所知的理由,常译为“因为”、“既然”,语气比because稍弱,通常置于句首,表示一种含有勉强语气的原因。例如: (1)Since he asks you, you”ll tell him why. 他既然问你,那就告诉他为什么吧。 (2)Since everyone is here, let”s start. 既然大家都到齐了,我们就出发吧! (3)Since I understood very little Jap anese, I couldn”t follow the conversation. 我日语懂得不多,因而听不懂对话。 3. as是常用词,它表示的“原因”是双方已知的事实或显而易见的原因,或者理由不是很重要,含义与since相同,但语气更弱,没有since正式,常译为“由于,鉴于”。从句说明原因,主句说明结果,主从并重。例如:

as和like的区别

as和like的区别 标签:杂谈分类:教学资源 先说as吧 as作介词: 1.以…的身份,作为:充当角色、身份或功能的(In the role, capacity, or function of) 例:acting as a mediator.充当调解人 2.以相似的方式;如同(In a manner similar to; the same as) 例:On this issue they thought as one.在这个问题上,他们意见一致 like做介词: 像(如同)……一样,如……般的 后面一般都接sb. 或者sth.或者是动名词(即doing sth)。 例: It's not like you to take offense.你不象会发脾气的人 lived like royalty 过着帝王般的生活 felt like running away想要逃跑 (feel like:想要。。。。。。) 简而言之,区别就是,as是“作为”,也就是事实本来就是这样,like是“像”,事实并不是这样。比如那人本来就是个调解人,所以用as;而那个人本来不是帝王,却过着帝王般的生活,那人本来是要发脾气的只不过人家觉得他不像会发脾气的,所以用like... 很早的时候,like是形容词,表示相象、相同、类似等意;as是连接词。 Samy and Sammy are very like. Samy和Sammy长得很像。 Paul behaved as a child(does).保罗的举止像个小孩。(句子有省略) 后来,like作为介词使用,表示像…一样;as也可以作为介词使用了。 Paul behaved like a child.保罗的举止像个小孩。(句子没有省略) 再比较: Let me speak to you as a father.让我以父亲的地位对你说说。(=I am your father and I am speaking to you in that character) Let me speak to you like a father.让我像你父亲那样对你说说。(= I am not your father but I am speaking to you in the way your father might) 再后来,有些语法学家把以往like不允许作连词使用的规则也改了,用来代替引导方式状语从句的as。 I can't sing like I used to do.我不能像过去那样地唱了。(指唱的音色) He writes just like his brother did when he was young.他写字的手法和他兄弟年轻时写的差不离。(指书法的风格和字型)即使如此,like和as有时还是有些区别的。试比较:The prisoner was hanged like a murderer.这个囚徒像杀人犯那样被处以绞刑(=…as if he were a murderer)。 The prisoner was hanged as a murderer.这个犯人作为杀人犯被处以绞刑。(这个犯人就是杀人犯) as 和 like 在汉语中都译做"像",但字面下的隐含意思是不同的. like侧重A B两者间的比较,并不意味着A和B属于一类或完全相似. 例如:He speak English like an Englishman.(=in a way an Englishman speaks English.) 表示有些相象 as则侧重于同一性,意味着A B两者属于同一类或完全相似. 例如:He speaks English as an Englishman.(=as well as an English.) 表示讲得一样好 as与like是英语中常见的两个词,他们的语义和用法很多.在语义上者两个词都可以当"像......","正如......"讲,说明人与人、物与物、动作与动作、状态与状态之间的相似之处。但其语法结构却是不一样的。 一、当“像”讲时,语法结构的不同之处是: 1、as作连接词。她引导比较状语从句和方式状语从句,而且这两种从句通常为省略句。例如: 1、She is a fine singer, as her mother used to be. 2、There is as much water in this cupas in that one. 2、like作介词。例如: 3、My sister isn''t much like me. 4、The robot can''t work like man. 如果需要加强语气,再这两个词之前加上just之类的词即可。例如: 5、All the plants and animals need air just as they need water. 6、Mary goes to school at seven every morning just like her brother. 含义不同之处是: (1)like只是单纯表示比较,而且通常不是同类事物进行比较: 7、The ship looks like a high building. 8、The sky was like ink over my head. (2)as可表示同类事物比较。 9、This ship is as long as that one. 二、当“正如....”意义讲时,语法结构的不同之处是: (1)as作关系代词或关系副词、引导定于从句。 as 在这样的句子里指全句所谈到的内容,引出非限制性定于从句,在从句中一般做主语或宾语。例如: 10、Metals have many good properties, as has been stated before. 11、As we said before, you have done a good job. (2)like作介词。 12、She, like thousands of others, is fascinated by

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