Cold as it was，he went on working.

尽管天气冷，可他仍继续工作。

Fast as you read，you can't finish the book in three days.

尽管你读得快，你也不可能在三天内读完这本书。

3．while

while引导让步状语从句，意为"虽然；尽管"，置于句首。如：

While I am willing to help，I do not have much time available.尽管我愿意帮忙，但是我没有很多时间。

While he likes the big house very much，he can't afford it.虽然他很喜欢那所大房子，但他买不起。

Ⅰ.用适当的连词填空

1．Although/Though/While birds use their feathers for flight，some of their feathers are for other purposes.(2017·北京)

2．While/Though/Although some people are motivated by a need for success，others are motivated by a fear of failure.(2016·江苏)

3．While/Though/Although online shopping has changed our life，not all of its effects have been positive.(2016·浙江)

4．He is a shy man，but he is not afraid of anything or anyone.(2015·北京)

5．While/Although/Though the students came from different countries，they got along quite well in the summer camp.(2015·福建)

6．Although/Though/While the job takes a significant amount of time，most students agree that the experience is worth it.(2015·湖南)

7．I don't really like the author，although/though I have to admit his books are very exciting.(2014·山东)

8．There's no way of knowing why one man makes an important discovery while another man，also intelligent，fails.(2013·新课标全国Ⅰ)

9．I was glad to meet Jenny again，but I didn't want to spend all day with her.(2013·新课标全国Ⅱ)

10．Hot as/though the night air was，we slept deeply because we were so tired after the long