内容正文:
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
Period Ⅲ Grammar
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
1.时间状语从句
(1)由when,while,as,after,before,once,since,till/until,as soon as来引导的时间状语从句。
①Remember to buy me a dictionary when you go out.
出去时记着给我买一本词典来。
②I’ll finish all the homework before I go to bed.
睡觉之前我得做完所有这些作业。
语法精讲·技能培养
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
③I’ll tell him as soon as he comes back.
他一回来我就告诉他。
④Once you show any fear,he will attack you.
一旦你表现出害怕,他就会攻击你。
⑤They sang songs as they marched forward.
他们一边向前行进一边唱歌。
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
(2)the minute/moment/time,every time,the first/last time也可以引导时间状语从句。
①We shot the enemy plane down the moment/time it appeared.
敌机一出现我们就把它打下来了。
②Each/Every time he came to my city,he would call on me.
每次他到我所在的城市,都会来看我。
③They fell in love the first time they met.
他们一见钟情。
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
(3)有些表时间的副词,如directly,immediately,instantly等也可以用来引导时间状语从句。
①I fell asleep directly I went to bed.
我一上床就睡着了。
②Immediately he came home,I told him about it.
他一回家,我就把这件事告诉他了。
③We rushed in immediately a gunshot was heard.
一听见枪声我们就冲了进去。
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
(4)hardly/scarcely...when,no sooner...than表示“一……就……”,引导时间状语从句。
He had no sooner arrived than she started complaining.
(=No sooner had he arrived than she started complaining.)
他一到,她就抱怨起来。
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
【提醒】 (1)时间状语从句中不用将来时态。若要表示将来时间,可用现在时态表示。
It will be a long time before we meet again.
我们再次相见要过很长时间。
(2)当时间状语从句的主语与主句主语相同,从句又有be动词出现时,从句可以省略主语和be动词。
Once (it is) seen,it can never be forgotten.
见一次就永远不会忘记。
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
(3)当把no sooner...than,hardly/scarcely...when中的no sooner,hardly/scarcely放在句首时,主句常用倒装语序,即把助动词had放在主语前面。
No sooner had he reached home than it began to rain.
他刚到家,天就开始下雨了。
Unit 5 Rhythm
英语·必修2(BSD)
菜 单
2.让步状语从句
(1)由though/although(尽管,虽然),even if/even though(即使)引导。
①We’ll try to finish the work on time though/although we are short of manpower.
尽管缺乏人手,我们还是要设法按时完成这项工作的。
②Even though/if he k