以现在进行时表示将来发生的事情
示例：
We’re probably spending the coming Easter with the Greens.
我们会和格林一家共度复活节... 衔接词or rather表示确切
示例：
The highrise fire broke out last night, or rather early this morning.
这... once的不定意义
示例：
This was once my home.
这儿曾经是我的家。
当once表示at some time（某个时候，曾经）这样的不定意义时，只用于谈... 后接虚拟语气从句的动词
示例：
I recommended that the company invest in new property.
我建议公司在新的房地产上进行投资。
... (be) used to + 名词
示例：
George’s used to New York traffic – he’s lived there for three years.
... 动词不定式表示目的
示例：
We went to the airport early in order to have enough time to check in.
为了有足够的时... 现在完成时的含义
示例：
If you have sprained your ankle, it means your ankle is sprained now.
如果你是扭伤了脚踝... as if引导的从句
示例：
It looks as if a shower is approaching.
看来好像要下一场阵雨了。
As if或as though这两个词组... 要正确使用现在完成时
示例：
The fire broke out at six last night.
这场火是昨晚六点开始的。
下列两种情况，不能用现在完成时：
1... many of whom等结构的应用
示例：
There are 100 Chinese students on the campus, many of whom are in Schoo... | 
