副詞 adv.什么時(shí)候,何時(shí)
at what time
· When can you come to see me?
你什么時(shí)候來(lái)看我?
· When did you go to bed last night?
昨晚你什么時(shí)候睡覺(jué)的?
· When are you going to return it?
你準(zhǔn)備什么時(shí)候還（書）?
副詞 adv.是…時(shí)候
at which;on which
· Please tell me when we'll have the meeting.
請(qǐng)告訴我我們什么時(shí)候開(kāi)會(huì).
· I wonder when that was.
我不知道那是什么時(shí)候的事.
副詞 adv.在…的時(shí)候
at or during which
· How I regretted the days when I had played and should have studied!
我多么懊悔我本該好好學(xué)習(xí)卻玩掉了的那么多的日子!
副詞 adv.那時(shí)
but at that moment
· It happened on a day in November when the weather was very wet and cold.
這事發(fā)生在十一月的一天,那時(shí)天氣又潮濕又寒冷.
· We were about to start,when it began to rain.
我們剛要出發(fā)時(shí)開(kāi)始下雨了.
連詞 conj.當(dāng)…時(shí)
at the time when
· It happened when I was living in the country.
這事發(fā)生在我住在農(nóng)村的時(shí)候.
· It was raining when we arrived.
我們到達(dá)時(shí),天正下著雨.
· He always comes on those days when I am busy.
他總在我忙的日子來(lái).
· I was walking along the stream,when I met my teacher of English.
當(dāng)我沿著小溪散步時(shí)遇到了英語(yǔ)老師.
連詞 conj.一…就
immediately after
· When I had finished dinner I went to bed.
我吃完飯就睡覺(jué)了.
· She was very surprised when she saw me.
她見(jiàn)到我非常驚訝.
· Let us set out when the sun has risen.
太陽(yáng)一出來(lái),我們就動(dòng)身.
代詞 pron.（關(guān)系代詞）那時(shí)
which time
· I came here in 1949,since when I have been engaged in this work.
我1949年到這里,從那時(shí)起我就擔(dān)任這項(xiàng)工作.
· We came a week ago,since when the weather has been bad.
我們?cè)谝恍瞧谇皝?lái)此,從那時(shí)起天氣就一直不好.
代詞 pron.（疑問(wèn)代詞）什么時(shí)候
what time
· Since when have you been here?
你從何時(shí)起在此地?
· Until when can you stay?
你能呆到什么時(shí)候?