since
音標(biāo)發(fā)音
- 英式音標(biāo) [s?ns]
- 美式音標(biāo) [s?ns]
- 英式發(fā)音
- 美式發(fā)音
基本解釋
- prep. 自……以后；（表示氣憤）何曾
- conj. 自……以來；因?yàn)?/li>
- adv. 自……以后；此后；之前
- n. (Since) （法、美）新斯（人名）
詞源解說
- 15世紀(jì)中期進(jìn)入英語，直接源自古英語的sian，意為那時(shí)。
用法辨析
- since用作介詞的意思是“從…以來,自從…之后”,其賓語常指過去的一個(gè)時(shí)間點(diǎn),其含意通常指持續(xù)到說話時(shí)刻的動(dòng)作或情況開始于什么時(shí)候。
- since之后常接名詞、動(dòng)名詞作其賓語, since then意為“從那以后”。
- since用作副詞表示“以前”時(shí)還可和long, ever連用。long since意為“好久以前”, not long since意為“就在不久前”, ever since意為“從那時(shí)起,此后一直”。
- since用作連詞作“自從…以來〔以后或,現(xiàn)在〕”解時(shí),引導(dǎo)時(shí)間狀語從句,在主句是現(xiàn)在完成時(shí)的情況下,如果since從句中謂語動(dòng)詞用一般過去時(shí),則表示動(dòng)作或狀態(tài)的完成,計(jì)時(shí)的起點(diǎn)是動(dòng)作或狀態(tài)完成的那一時(shí)刻,在語意上,非延續(xù)性動(dòng)詞的句子與其詞意一致,含有肯定的意味,而延續(xù)性動(dòng)詞的句子與其詞意恰好相反,含有否定的意味; 如果since從句用延續(xù)性動(dòng)詞的現(xiàn)在完成時(shí),則表示該動(dòng)作或狀態(tài)一直延續(xù)到現(xiàn)在時(shí)刻,而且可以包括現(xiàn)在時(shí)刻在內(nèi),時(shí)間的起點(diǎn)應(yīng)從動(dòng)作發(fā)生之時(shí)算起,句子的意思和動(dòng)詞的詞意一致,具有肯定意味; 在現(xiàn)代英語中,延續(xù)性動(dòng)詞的一般過去時(shí)有時(shí)也可表示動(dòng)作或狀態(tài)延續(xù)到現(xiàn)在時(shí)刻,時(shí)間的起點(diǎn)從動(dòng)作或狀態(tài)發(fā)生之時(shí)算起,不過這類句子多半要用ever來加強(qiáng)since的語意,然而, since從句中的謂語動(dòng)詞如果是非延續(xù)性動(dòng)詞,即使用ever來加強(qiáng)語意,也絕不意味著從句動(dòng)作有什么延續(xù)性。
- 在“it is+since從句”結(jié)構(gòu)中:since從句的謂語動(dòng)詞多用一般過去時(shí),其時(shí)間起點(diǎn)的計(jì)算以及從句的含意和動(dòng)詞詞意的關(guān)系與1.中所述的相應(yīng)部分相同; since從句中的謂詞動(dòng)詞也可以用現(xiàn)在完成時(shí),表示動(dòng)作或狀態(tài)的完成,時(shí)間的起點(diǎn)從動(dòng)作或狀態(tài)的完成之時(shí)算起,句子與動(dòng)詞的詞意相反,含有否定的意味; 在這種結(jié)構(gòu)中,如把is改成was,可用來表示某一過去動(dòng)作或狀態(tài)結(jié)束時(shí)起到另一過去時(shí)刻為止的這一段過去時(shí)間。
- since引導(dǎo)時(shí)間狀語從句時(shí),若主句表示目前的狀況是由于過去某一件事所造成的后果或影響時(shí),其謂語動(dòng)詞也可以用一般現(xiàn)在時(shí); 有時(shí)候,通過上下文,可以看出從句的動(dòng)作是延續(xù)到過去某個(gè)時(shí)間,這時(shí)主句的謂語動(dòng)詞要用過去完成時(shí); 如果主句的動(dòng)作是從過去某時(shí)一直延續(xù)到現(xiàn)在,主句可用現(xiàn)在完成進(jìn)行時(shí)。
- since作“因?yàn)?既然,由于”解時(shí),引導(dǎo)原因狀語從句,用來說明產(chǎn)生主句的原因,這種原因帶有分析后的推理性質(zhì)。
prep. (介詞)
adv. (副詞)
conj. (連詞)
英漢例句
- I have lived here since January.
自一月份以來,我一直住在這里。 - He disappeared many years since.
他多年以前就不知去向。 - Since I left college,I have not seen him.
自從我從大學(xué)畢業(yè)以后,就沒有見過他了。
用作介詞 (prep.)
用作副詞 (adv.)
用作連詞 (conj.)
詞組短語
- Since many 出自多;來自多
- Even since 甚至自;正在翻譯;從那以后
- Since childhood 自幼;自小;自小時(shí)候
- since both 因?yàn)閮?因?yàn)檫@兩種;因?yàn)閮烧?/li>
- Since Technology 圣馳科技
短語
英英字典
- from a particular time in the past until a later time, or until now
- from a particular time in the past until a later time, or until now
- (BECAUSE) because; as
- (TIME) from a particular time in the past until a later time, or until now
- You use since when you are mentioning a time or event in the past and indicating that a situation has continued from then until now.
- Since is also an adverb.
- Since is also a conjunction.
- You use since to mention a time or event in the past when you are describing an event or situation that has happened after that time.
- Since is also a conjunction.
- When you are talking about an event or situation in the past, you use since to indicate that another event happened at some point later in time.
- You use since to introduce reasons or explanations.
劍橋英英字典
柯林斯英英字典
專業(yè)釋義
- 因?yàn)?/li>