時(shí)間狀語(yǔ)：典型的表時(shí)間的詞與現(xiàn)在完成時(shí)連用

與for 、since、 already、 yet、 ever、 never、 recently、just、before、 so far、 by now、 …等連用.

注意: for+一段時(shí)間 since+過(guò)去的某一個(gè)時(shí)間點(diǎn)

I have lived in Nanning for ten years.

I have lived in Nanning since ten years ago/ 2002.

I haven’t eaten anything for ten hours.

I ha haven’t eaten anything since 6am.

already :用于肯定句, 可放在助動(dòng)詞之后、過(guò)去分詞之前，也可放在句末.

I have already finished my homework.

yet: 用在疑問(wèn)句中意為”已經(jīng)”, 用在否定句中表示”還”, 常放在句末.

Have you finished your homework yet?

I haven’t finished my homework yet.

ever: 曾經(jīng) 用于疑問(wèn)句中：

Have you ever been to Beijing?

Have you ever been to Shanghai ?

你去過(guò)上海嗎?

never:未曾 從未

I have never traveled by plane before.

我以前從來(lái)沒(méi)有乘飛機(jī)旅行過(guò).

recently：最近 用于肯定 否定 疑問(wèn)句中

I have been busy recently.

We have not seen Tom recently.

Have they been here recently.

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