1、 点击-ing形式作宾语
1. It’s hard to imagine ______ anywhere else but here.
A. live B. to live
C. living D. to living
此题选C。英语中，有些动词（短语）一般跟-ing形式作宾语，而不用不定式作宾语。这类动词（短语）包括：advise, allow, avoid, consider(考虑), enjoy, escape, finish, imagine, mind, miss, practise, risk, suggest
2、 , feel like, insist on 等。
2. Having been ill in bed for nearly a month, he had a hard time ______ the exam.
A. pass B. to pass
C. passed D. passing
此题选D。have a hard time (in) doing意为“费了很大劲做”，-ing形式作介词的宾语。此句中省略了介词in，增加了试题的难度。类似的结构还有：
spend ... (in) doing花费…
3、…做
have difficulty / trouble (in) doing 做……有困难
stop / prevent ... (from) doing阻止……做
waste time (in) doing浪费时间做
excuse ... (for) doing原谅……做
be busy (in) doing 忙于做
3. She looks forward every spring to _____ the flower-lined garden.
A. visit B. paying a visit
C. walk in
4、 D. walking in
此题选D。许多含有to 的短语动词中的to为介词，其后若跟动词，应用其-ing形式作宾语。这类短语有：look forward to, be (get) used to（习惯于）, devote ... to ..., lead to, pay attention to, prefer ... to ... , stick to 等。
4. —The light in the office is still on.
—Oh, I forgot ____.
A. turning it off B. turn
5、it off
C. to turn it off D. having turned it off
此题选C。有些动词既可跟-ing形式也可跟不定式作宾语，但含义不同。如：
（1）forget , remember 后跟-ing形式表示已发生的动作，跟不定式表示未发生的动作。
（2）try to do 尽力做； try doing 试着做
（3）go on to do 接着做（另一件事）；
go on doing 继续做（原来在做的事）
（4）mean to do 打算做；
mean doing 意味着
（5）can’
6、t help to do 不能帮助做；
can’t help doing 禁不住做
（6）stop to do 停下来去做；
stop doing停止做
5. —What do you think of the book?
—Oh, excellent. It’ s worth ______ a second time.
A. to read B. to be read
C. reading D. being read
此题选C。be worth后常跟-ing形式的主动式作宾语，表示被动意义。
6. This sentence needs ______.
A. a improvement
B. improve
C. improving
D. improved
此题选C。need后常跟-ing形式的主动式或不定式的被动式，表示被动意义。该句相当于This sentence needs to be improved.
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