1B 部分翻译
We also use the conjunctions since,till and until to introduce time clauses.
我们也用连词since，till和until引导时间状语从句。
Since means from a certain time. The verb in the main clause is often used in the present perfect tense.
Since的意思是从一个确定的时间开始。主句中的动词经常用现在完成式。
You've been happy since I first met you.
自从我第一次见到你，你一直很快乐。
Till and until mean up to a certain time. Until can be placed at the beginning or in the middle of the sentence, but till is usually used in the middle of the sentence.
Till和until的意思是直到一个确定的时间为止。Until可放在句首或句中，但是till通常放在句中。
Spud remained in another basketballleague for about a year till/until the NBA took notice of him.
直到NBA注意到斯巴德，他已经在另一个篮球社因待了大约一年。
Until his dream came true, Spud never gave up.
直到他的梦想成真，斯巴德从未放弃。
When we use the structure not... until, we cannot use till instead of until.
当我们使用结构not... until时，不能用till替换until。
Don't wake me up until you finish your work.
直到你完成工作再叫醒我。
David loves basketball
Here are more sentences from David's diary entry. Complete his sentences with since,till or until.
这些是戴雏的日记条目中更多的句子。用since，till或until完成句子。
1 I have been crazy about playing basketball since I was a little boy.
1自从我是一个小男孩时，我就痴迷于打篮球。
2 The weather has been awful this week. The rain did not stop until yesterday evening,so we could not practise basketball for several days.
2这周的天气很糟糕。雨直到昨晚才停，所以我们有好几天不能训练篮球。
3 We played basketball in the playground this afternoon till it was getting dark.
3今天下午我们在操场上打篮球直到天黑。
4 It is the first time we have played basketball since Monday. We enjoyed ourselves very much.
4自从周一我们是第一次打篮球。我们玩得非常高兴。
5 I waited for 20 minutes at the bus stop until the bus arrived.
5直到公共汽车来，我在公共汽车站一直等了20分钟。
6 It is Friday evening. I will not go to bed until I finish watching my favourite TV programme.
6现在是周五晚上。直到我看完我最喜欢的电视节目我才去睡觉。
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