观察下列句子，指出其黑体部分的动词形式及作用。
1．As a young man，he saw the great need for increasing the rice output.
动词ing作介词的宾语
2．“We regret to inform you...”are the words every writer knows well.
不定式作宾语
3．However，he doesn't care about being famous.
动词ing作介词的宾语
4．He enjoys listening to violin music，playing mahjong，swimming and reading.
动词ing作动词的宾语
5．He awoke from his dream with the hope of producing a kind of rice that could feed more people.
动词ing作介词的宾语
6．Xiao Wang's parents planned to take a holiday abroad.
不定式作动词的宾语
7．They start working/to work at eight every morning.不定式或动词ing作动词的宾语
8．He neglected locking/to lock the door.
不定式或动词ing作动词的宾语
9．In those days they couldn't afford to buy a car.
不定式作动词的宾语
10．I may claim to have learned 8，000 English words.
不定式作动词的宾语
