as long as和so long as引导条件状语从句的区别

 　　as¹ long as 和 so long as 均可表示“只要”，用于引导条件状语从句，两者没什么区别。如：

　　I don't care² so [as] long as she lets me be with her son. 只要她让我和她儿子在一起，我不在乎。

　　You can take my car as [so] long as you drive carefully³. 你可以用我的汽车，只要你小心点儿开。

　　You may use my dictionary⁴ as [so] long as you don't keep it too long. 只要使用时间不太长，你可以用我的词典。

　　但是，当 as long as 用于本义表示“与……一样长”时，与 so long as 在用法上是有区别的，即 as long as 可用于肯定句或否定句，而 so long as 只用于否定句，不用于肯定句。如：

　　It took⁵ three times as long as I had⁶ expected⁷. 这件事比我预料的多花了两倍的时间。

　　It didn't take as [so] long as I expected. 花的时间比我预料的短。

1 as   

conj.按照；如同

参考例句：

• He got work in a hotel as a waiter.他在一家旅馆找到了当服务生的工作。
• In the hotel,the old men were drinking away as usual.在旅馆里，这些老人和往常一样喝个不停。

2 care   

n.小心，照料，忧虑；v.关心，照顾，喜爱，介意

参考例句：

• I really care about the students in my class.我的确喜欢这个班上的学生。
• Her work is to take care of the children.她的工作是照料好孩子。

3 carefully   

adv.仔细地；小心地

参考例句：

• If you watch carefully you will see how to do it. 如果你仔细观察，你就会看出如何做此事了。
• Now listen carefully everybody.请大家仔细地听。

4 dictionary   

n.词典，字典，辞典

参考例句：

• I have a new dictionary.我有一本新字典。
• This is a very good dictionary.这是一本非常好的词典。

5 took   

vt.带，载(take的过去式)

参考例句：

• I took my dog for a walk along the river.我带着狗沿那条河散步。
• It took me about two hours to cook the meat.我花了大约两个小时来煮这些肉。

6 had   

vbl.have的过去式和过去分词；conj.有

参考例句：

• I just had a good idea!我有个好主意！
• The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。

7 expected   

adj.（用作定语）预期要发生的，期待中的v.期望( expect的过去式和过去分词 )；预料；要求；认为（某事）会发生

参考例句：

• The company has a strict dress code—all male employees are expected to wear suits. 公司有严格的着装规定—所有男职员都要穿西服。
• The bargain prices are expected to entice customers away from other stores. 低廉的价格意在把顾客从其他商店吸引过来。