四、考查used to do sth与be used to doing sth
used to do sth 表示过去常做某事
be used to doing sth 表示习惯于做某事
The Greens used to live in
A. used to live B. are used to live C. are used to living D. are used for living
答案为C。根据句意可推知，最佳答案是C。句意为：格林一家过去住在伦敦，现在他们已经习惯于住在北京。
五、考查spend time / money doing sth
英语中有两个表示“花费”的句式，注意它们所用的动词不同，所搭配的非谓语动词也不同：
Sb spends some time /some money (in) doing sth.
It takes somebody some time to do sth.
We spent much time ________ English last Sunday. (年黑龙江牡丹江)
A. to practice speaking B. practicing to speak C. practicing speaking
答案为C。此题有两个考点：一是考查practice后接动名词作宾语；二是考查 spend time doing sth句式。句意为：上个星期天我们花了很多时间练习说英语。
六、考查see sb doing sth与see sb do sth
see sb doing sth 表示看见某人正在做某事
see sb do sth表示看见某人做某事(强调看见了动词的全过程)
hear sb doing sth 表示听见某人正在做某事
hear sb do sth表示听见某人做某事(强调听见了动词的全过程)
When I walked past the park, I saw some old people ________ Chinese Taiji. (山东莱芜)
A. do B. did C. doing D. are doing
答案为C。根据状语从句When I walked past the park(当我走过公园时)可知，这里是指走过公园时“正看见”，故选C。句意为：当我经过公园的时候，我看到一些老人在打中国太极拳。