高中英语北师大版版必修2：Unit5 Rhythm-Warm-up and lesson1 Pe(3)

6. since引导的时间状语从句，译为“自从……”，主句常用现在完成时，从句常用一般过去时。

eg.

We have made many dumplings since we began to cook. 自从我们开始做饭起，我们已经包了许多饺子了。

We haven?t seen each other since we parted. 我们自从分手以后一直没见过面。

注：常用句型：It is +时间段+since从句 译为：自从……有多长时间了。

eg.

It is six years since she graduated from the university. 自从她大学毕业已有六年的时间了。

7. till和until引导的时间状语从句，译为“直到……为止”，not … till / until引导的时间状语从句，译为“直到……才”。前者强调主句动作的结束，用延续性动词，后者强调主句动作的开始，用点动词。

eg.

I will wait for my friend until / till he comes. 我要一直等到我朋友来。 We won?t start our discussion until / till he comes. 我们要等到他来了，再开始我们的讨论。 二、让步壮语从句:

though, although

注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用 Although it's raining, they are still working in the field. 虽然在下雨，但他们仍在地里干活。 He is very old, but he still works very hard. 虽然他很老，但仍然努力地工作。

Though the sore be healed, yet a scar may remain. 伤口虽愈合，但伤疤留下了。 （谚语） 典型例题

1） ___she is young, she knows quite a lot.

A. When B. However C. Although D. Unless 答案：C。意为虽然她很年轻，却知道许多。 2) as, though 引导的倒装句

as / though引导的让步从句必须表语或状语提前（形容词、副词、分词、实义动词提前）。 Child as /though he was, he knew what was the right thing to do.

= Though he was a small child, he knew what was the right thing to do. 注意： a. 句首名词不能带任何冠词。

b. 句首是实义动词，其他助动词放在主语后。如果实义动词有宾语和状语，随实义动词一起放在主语之前。

Try hard as he will, he never seems able to do the work satisfactorily. = Though he tries hard, he never seems…

虽然他尽了努力，但他的工作总做的不尽人意。 3) ever if, even though. 即使

We'll make a trip even though the weather is bad. 4) whether…or- 不管……都

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Whether you believe it or not, it is true.

5) \疑问词\或\疑问词+后缀ever\ No matter what happened, he would not mind. Whatever happened, he would not mind. 替换： no matter what = whatever

no matter who = whoever no matter when = whenever no matter where = wherever no matter which = whichever no matter how = however

注意：no matter 不能引导主语从句和宾语从句。 （错）No matter what you say is of no use now. （对）Whatever you say is of no use now.

你现在说什么也没用了。(Whatever you say是主语从句) （错）Prisoners have to eat no matter what they're given, （对）Prisoners have to eat whatever they're given. 囚犯们只能给什么吃什么。

单项选择

1.—Coach, can I continue with the training? 【2012重庆30】

—Sorry, you can?t ________you haven?t recovered from the knee injury. A. until B. before C. as D. unless

2. It is hard for Greek government to get over the present difficulties ______ it gets more financial support from the European Union.

A. if B. unless C. because D. since

3. All the photographs in this book, _______ stated otherwise, date from the 1950s. 【2012陕西25】

A. unless B. until C. once D. if

4. A number of high buildings have arisen ____ there was nothing a year ago but ruins. 【2012山东32】

A. when B. where C. before D. until

5. Everything was placed exactly _____ he wanted it for the graduation ceremony. 【2012天津14】

A. while B. when C. where D. though

6. You can borrow my car ____ you promise not to drive too fast. 【2012江西31】 A. unless B. if C. in case D. as long as

7. Leave your key with your neighbor ____ you lock yourself out one day. 【2012辽宁30】 A. as long as B. even though C. in case D. as if

8. If you happen to get lost in the wild, you?d better stay ______ you are and wait for help. 【2012四川10】

A. why B. where C. who D. what

9. One?s life has value _____ one brings value to the life of others. 【2012江苏30】 A. so that B. no matter how C. as long as D. except that

10. This restaurant wasn?t_____ that other restaurant we went to. 【2012全国29】

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A. half as good as B. as half good as C. as good as half D. good as half as

11. One Friday, we were packing to leave for a weekend away _____ my daughter heard cries for help. （2011浙江卷4）

A. after B. while C. since D. when

12. Jack wasn?t saying anything but the teacher smiled at him _______ he had done something very clever. （2011湖南卷33）

A. as if B. in case C. while D. though

13. He had his camera ready ______he saw something that would make a good picture. (2011山东卷28)

A. even if B. if only C. in case D. so that

14. The little boy won?t go to sleep ______________his mother tells him a story. （2010 全国卷I 30）

A. or B. unless C. but D. whether

15. _____they decide which college to go to, students should research the admission procedures. （2010北京卷30）

A. As B. While C. Until D. Once 16. — Our holiday cost a lot of money.

— Did it? Well, that doesn`t matter ____you enjoyed yourselves.（2010江西卷22）

A. as long as B. unless C. as soon as D. though

17. The old man asked Lucy to move to another chair _______ he wanted to sit next to his wife. （2010辽宁卷29）

A. although B. unless C. because D. if

18. The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult. （2010山东 …… 此处隐藏：8729字，全部文档内容请下载后查看。喜欢就下载吧 ……