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……以後;(表示氣憤)何曾
- conj. 自……以來;因爲(wèi)
- adv. 自……以後;此後;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,意爲(wèi)那時(shí)。
用法辨析
- since用作介詞的意思是“從…以來,自從…之後”,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)刻的動作或情況開始於什麼時(shí)候。
- since之後常接名詞、動名詞作其賓語, since then意爲(wèi)“從那以後”。
- since用作副詞表示“以前”時(shí)還可和long, ever連用。long since意爲(wèi)“好久以前”, not long since意爲(wèi)“就在不久前”, ever since意爲(wèi)“從那時(shí)起,此後一直”。
- since用作連詞作“自從…以來〔以後或,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從句中謂語動詞用一般過去時(shí),則表示動作或狀態(tài)的完成,計(jì)時(shí)的起點(diǎn)是動作或狀態(tài)完成的那一時(shí)刻,在語意上,非延續(xù)性動詞的句子與其詞意一致,含有肯定的意味,而延續(xù)性動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)性動詞的現(xiàn)在完成時(shí),則表示該動作或狀態(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)從動作發(fā)生之時(shí)算起,句子的意思和動詞的詞意一致,具有肯定意味; 在現(xiàn)代英語中,延續(xù)性動詞的一般過去時(shí)有時(shí)也可表示動作或狀態(tài)延續(xù)到現(xiàn)在時(shí)刻,時(shí)間的起點(diǎn)從動作或狀態(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從句中的謂語動詞如果是非延續(xù)性動詞,即使用ever來加強(qiáng)語意,也絕不意味著從句動作有什麼延續(xù)性。
- 在“it is+since從句”結(jié)搆中:since從句的謂語動詞多用一般過去時(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從句中的謂詞動詞也可以用現(xiàn)在完成時(shí),表示動作或狀態(tài)的完成,時(shí)間的起點(diǎn)從動作或狀態(tài)的完成之時(shí)算起,句子與動詞的詞意相反,含有否定的意味; 在這種結(jié)搆中,如把is改成was,可用來表示某一過去動作或狀態(tài)結(jié)束時(shí)起到另一過去時(shí)刻爲(wèi)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於過去某一件事所造成的後果或影響時(shí),其謂語動詞也可以用一般現(xiàn)在時(shí); 有時(shí)候,通過上下文,可以看出從句的動作是延續(xù)到過去某個(gè)時(shí)間,這時(shí)主句的謂語動詞要用過去完成時(shí); 如果主句的動作是從過去某時(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“因爲(wèi),既然,由於”解時(shí),引導(dǎo)原因狀語從句,用來說明産生主句的原因,這種原因帶有分析後的推理性質(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,我一直住在這裡。 - He disappeared many years since.
他多年以前就不知去曏。 - Since I left college,I have not seen him.
自從我從大學(xué)畢業(yè)以後,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;正在繙譯;從那以後
- Since childhood 自幼;自小;自小時(shí)候
- since both 因爲(wèi)兩;因爲(wèi)這兩種;因爲(wèi)兩者
- Since Technology 聖馳科技
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
- 因爲(wèi)