1)since / sɪns; sɪns/ prep
(used with the present or past perfect tense 與現(xiàn)在完成時(shí)態(tài)或過(guò)去完成時(shí)態(tài)連用) from (a specified time in the past) till a later past time, or till now 從(過(guò)去某時(shí)間)以來(lái)﹑ 以後或到現(xiàn)在: I haven't eaten since breakfast. 我吃了早飯後到現(xiàn)在還什麼都沒(méi)吃呢.
例：She's been working in a bank since leaving school. 她中學(xué)畢業(yè)後就一直在一家銀行工作.
例：He had spoken to her only once since the party. 自從那次聚會(huì)以來(lái), 他只跟她說(shuō)過(guò)話(huà).
2)since conj
(used with the present perfect, past perfect or simple present tense in the main clause 與主句中的現(xiàn)在完成時(shí)態(tài)﹑ 過(guò)去完成時(shí)態(tài)或一般現(xiàn)在時(shí)態(tài)連用) from (a specified event in the past) till a later past event, or till now 從(過(guò)去某事)以來(lái)﹑以後或到現(xiàn)在;
例：Where have you been since I last saw you? 自從我上次見(jiàn)到你以後, 你到哪兒去了?
例：It was the first time I'd won since I'd learnt to play chess. 自從我學(xué)會(huì)下國(guó)際象棋以來(lái), 這是我第贏.
例：How long is it since we visited your mother? 自從我們看望你母親以來(lái)到現(xiàn)在有多長(zhǎng)時(shí)間了?
because; as 因?yàn)? 既然; 由於: Since we've no money we can't buy a new car. 因?yàn)槲覀儧](méi)錢(qián), 沒(méi)法買(mǎi)新汽車(chē).
(idm 習(xí)語(yǔ)) ever since =>ever. since adv (used with the present or past perfect tense 與現(xiàn)在完成時(shí)態(tài)或過(guò)去完成時(shí)態(tài)連用) from a specified time in the past till a later past time, or till now 從過(guò)去某時(shí)間以來(lái)﹑ 以後或到現(xiàn)在;
例：He left home two weeks ago and we haven't heard from him since. 他兩星期以前離開(kāi)了家, 到現(xiàn)在我們一直沒(méi)有他的消息.
例：She moved to London last May and has since got a job on a newspaper. 她去年五月到倫敦, 此後一直在報(bào)社工作.
相關(guān)推薦：2014年托福備考輔導(dǎo)
(used with the present or past perfect tense 與現(xiàn)在完成時(shí)態(tài)或過(guò)去完成時(shí)態(tài)連用) from (a specified time in the past) till a later past time, or till now 從(過(guò)去某時(shí)間)以來(lái)﹑ 以後或到現(xiàn)在: I haven't eaten since breakfast. 我吃了早飯後到現(xiàn)在還什麼都沒(méi)吃呢.
例：She's been working in a bank since leaving school. 她中學(xué)畢業(yè)後就一直在一家銀行工作.
例：He had spoken to her only once since the party. 自從那次聚會(huì)以來(lái), 他只跟她說(shuō)過(guò)話(huà).
2)since conj
(used with the present perfect, past perfect or simple present tense in the main clause 與主句中的現(xiàn)在完成時(shí)態(tài)﹑ 過(guò)去完成時(shí)態(tài)或一般現(xiàn)在時(shí)態(tài)連用) from (a specified event in the past) till a later past event, or till now 從(過(guò)去某事)以來(lái)﹑以後或到現(xiàn)在;
例：Where have you been since I last saw you? 自從我上次見(jiàn)到你以後, 你到哪兒去了?
例：It was the first time I'd won since I'd learnt to play chess. 自從我學(xué)會(huì)下國(guó)際象棋以來(lái), 這是我第贏.
例：How long is it since we visited your mother? 自從我們看望你母親以來(lái)到現(xiàn)在有多長(zhǎng)時(shí)間了?
because; as 因?yàn)? 既然; 由於: Since we've no money we can't buy a new car. 因?yàn)槲覀儧](méi)錢(qián), 沒(méi)法買(mǎi)新汽車(chē).
(idm 習(xí)語(yǔ)) ever since =>ever. since adv (used with the present or past perfect tense 與現(xiàn)在完成時(shí)態(tài)或過(guò)去完成時(shí)態(tài)連用) from a specified time in the past till a later past time, or till now 從過(guò)去某時(shí)間以來(lái)﹑ 以後或到現(xiàn)在;
例：He left home two weeks ago and we haven't heard from him since. 他兩星期以前離開(kāi)了家, 到現(xiàn)在我們一直沒(méi)有他的消息.
例：She moved to London last May and has since got a job on a newspaper. 她去年五月到倫敦, 此後一直在報(bào)社工作.
相關(guān)推薦：2014年托福備考輔導(dǎo)