5．短语 every time, each time, next time, the first time, by the time 等也可以引导时间状语从句。
Every time he arrived home at the end of the day, we'd greet him at the door.
It will be/was ＋一段时间＋before...过了……时间才……； It won't be/wasn't ＋一段时间＋before...没过多久就……。 He had left before I could say something. 我还没来得及说点什么，他就离开了。 It won't be long before we meet again. 过不了多久我们就会再见面的。
the radio.
8．She must have gone out early, _fo_r_ she had not shown up at
breakfast.
9．_B_e_fo_re__ I could say hello, the foreign guest turned around and
The moment/Immediately/As soon as I heard the voice, I knew my father was coming.
一听到声音，我就知道父亲回来了。
[名师点津] no sooner...than...，hardly...when...表示“一……就……”时注意 以下两点： (1)当 hardly, no sooner 置于句首时，其后的句子用部分倒装； (2)hardly 和 no sooner 后的句子常用过去完成时，when 和 than 后的句子常用一般过去时。
(2)当 not...until...结构用于强调句型时，句子结构为：It is/was not until...that...
It was not until he came back that I went to bed. 直到他回来我才去睡觉。
4．as soon as, the moment, the minute, immediately，directly 等引 导时间状语从句时，表示“一……就……”。
_同_时___发生，如例④。 4.since, now that 引导原因状语从句时常置于主句_之_前__，如例⑥⑦。
语法精要 点拨
一、时间状语从句 除了之前学习的由 when, while, as 引导的时间状语从句外，常见 的引导时间状语从句的连词还有以下几种情况： 1 ． before 引 导 时 间 状 语 从 句 时 ， 有 “ 在 …… 之 前 ； …… 才……；……就……；还没来得及……就……”等多种意义。常用句 式：
Module 5 Newspapers and Section Ⅲ MGargaamzminaers——时间状
语从句与原因状语从句
语境自主领悟 先观察原句
①When he was orbiting in the capsule, he took photographs of the
planet Earth. ②When Yang landed, Premier Wen Jiabao telephoned the Control
2．as 引导原因状语从句 as 表示十分明显的原因或已知的事实，一般说明因果关系，着 重点在主句，语气比 because 弱，常译为“由于”。as 引导的从句常 放在句首。 As it is known to everybody, I won't spend too much time on this matter. 由于大家都知道这件事，我就不在这件事上多花时间了。
①I really enjoy listening to music _be_c_a_u_se__ it helps me relax and
takes my mind away from other cares of the day.
②Mark needs to learn Chinese _be_c_a_u_se_/_si_n_ce____ his company is
2．since 引导时间状语从句时，表示“自从……以来多久了”， 从句中的谓语动词多用一般过去时，而主句中谓语动词多用现在完成 时或现在完成进行时。常用句式：It is/has been ＋一段时间＋since 从句(常用过去时)
We have never met since we graduated from the college. 自从我们大学毕业后就再也没有见过面。
后自主感悟
1. 例①②③④⑤中的连词引导_时_间__状_语__从_句_____；例⑥⑦中的连词 引导_原_因__状_语__从_句____。
2.when 引导时间状语从句时，从句中的谓语动词和主句谓语动词
所表示的动作_同__时__发生，如例①；也可以在主句谓语动词之前发
生，如例②。 3.while 引导的时间状语从句中的谓语动词必须是和主句谓语动作
3．since/now that 引导原因状语从句 since 引导的从句通常放在句首，常表示已为人知的原因或理由， 语气较弱，常译为“既然”。now that 和 since 意思接近，常互换， 其引导的从句通常放在句首。 Now that/Since you are busy enough we won't trouble you any more. 既然你们忙得够呛，我们就不再麻烦你们了。 Since no one has read the book, we can't discuss it. 既然没人读过这本书，我们就不能对它进行讨论。
I had hardly closed the door when somebody knocked. 我刚把门关上就有人敲门。 We had no sooner arrived at the station than the train left. ＝No sooner had we arrived at the station than the train left. 我们一到火车站，火车就开走了。
二、原因状语从句 1．because 引导原因状语从句 because 意为“因为，由于”。在引导原因状语从句的连词中， because 语气最强，表示主句的直接原因，从句可放在主句之前或之 后。当回答疑问副词 why 开头的问句时一般用 because 引导的原因状 语从句。 He can't deliver his lectures today because he has got a bad cold. 他今天不能去讲课了，因为他患了重感冒。
He waited until/till his mother came back. 他一直等到他妈妈回来。 I didn't go to bed until/till I finished my homework. 直到做完作业我才上床睡觉。
[名师点津] (1)在 not...until/till...结构中，当 not until...置于句首时，主句要部 分倒装。 Not until he returned home did we feel relaxed. 直到他回到家我们才感到如释重负。
weight control will become much easier. 2．Tom had to turn down the invitation to the party last weekend
_be_c_a_u_se__ he was too busy. 3．_S_in_c_e_ you like the car so much, why not drive it back? 4．I had hardly come home _w_he_n_ it began to rain.
④While he was travelling in space, Yang spoke to two astronauts aboard the International Space Station, which is orbiting the earth, American astronaut Edward Lu and Russian cosmonaut Yuri Malenchenko. ⑤ “As you have asked me so nicely，” said Sharon, “I'd be delighted to sign your arm.” ⑥Since no one else saw the aliens, not many people believe Mr Bates. ⑦Now that I have made this first visit, I hope I can come many more times.
Centre to offer his congratulations. ③ When Yang took off from Jiuquan in northwest China at 9 am
yesterday, China became the third nation to send a man into space.
opening a branch in Beijing.
③Now _th_a_t_ he's been off sick all week, he's unlikely to come.
语法应用 落实
Ⅰ.单句语法填空
1．_Im__m_e_d_ia_te_ly___(immediate)you start eating in a healthier way,
每次在一天结束时他回到家，我们都在门口迎接他。 Next time you come in, please close the door. 下次你进来，请关门。