6． as 引导倒装

_______________________________________（他虽然年轻）, he knows a lot.

7． whether.....or.....

_____________you believe it __________not, it is a true story.

8．让步状语从句省略

Though ( _______________ )cold , he still wore a shirt.

Whether well or sick, she always keeps calm.

三．【链接训练】

1.-Why didn't you try your best to get on the bus?

　-I tried to，but ________ I could，it started moving.

　A．until B．when C．before D．after

2.Love and compassion have no cultural boundaries and have reached China from other parts of the world ________ the disastrous earthquake happened on May 12.

　A．when B．while C．since D．until

3.Scientist say people with cancer should not take aspirin ________ they are advised to do so by a doctor.

　A．if B．unless C．in case D．for fear

4.________ I have seventy two changes，I'd like to change into a big building to let all the sufferers live in.

　A．Unless B．Supposing C．What if D．Whether

5.________he was the last man I wanted to see，I did all in my power to help him.

　A．As B．Now that C．In case D．Though

6.________ Higuain was praised as one of the most promising young forwards，he said he didn't think too much about it.

　A．If B．While C．As D．However

7. You will be late ________you leave immediately.

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

8. ___________, Mother will wait for him to have dinner together.

A. However late is he B. However he is late

C. However is he late D. However late he is

9. If we work with a strong will, we can overcome any difficulty, ______________great it is.

A. what B. how C. however D. whatever

10. We won't give up ______________we should fail ten times.

A. even if B. since C. whether D. until

四．反思小结

　　总结一下本堂课所学习到的知识吧！