be serious about doing sth. 对某事当真 He's serious about selling his house.

7.But one very famous symbol in American culture is a cartoon. 但是美国文化的一个非常著的标志是卡通片。

famous 形容词，意为"著名的"

　辨析：

　(1).be famous for, 因为.........而出名，后接闻名的原因，与be well-known for 同义。

This place is famous for its cotton. 这个地方以出产棉花而出名。

　(2).be famous as, 作为.........而闻名 ，后接表示职位、名称等的词，与be well-known as 同义.

　　Jet Li is famous as a actor in the world. 李连杰是世界上著名的演员。

　(3).be famous to, 为.......所熟知，后接某部分人。

　　This singer is famous to lots of old people. 许多老人都熟知这位歌手。

五.语法归纳：动词不定式做宾语

跟不定时作宾语的动词有：打算(intend)计划(plan)和期盼(expect/desire)假装(pretend)喜欢(would like/love/prefer)表祝愿(wish)决定(decide)同意(agree)来帮助(help)设法(manage)说服(persuade)不拒绝(refuse)好像(seem/appear)答应(promise)做努力(attempt)选择(choose)询问(ask)多学习(learn)告诉(tell)失败(fail)也付得起(afford)find/think/feel+ it +形容词+to do 结构（重点记）

如：I find it difficult to learn English.我发现学英语很难。

注意：否定形式为not+ 不定式（to do）

（拓展1）在动词remember, try, regret, forget, need/want/require， stop, mean等后跟动名词V-和不定式意义不同，巧记一句话（记住努力；后悔忘记；需要停止；很有意义），学习采用对比法1. remember to do something记着去做某事（现在还没有做）

　remember doing something记着曾做过某事（以前做过某事）

2. try to do something努力、尽力做某事

　try doing something试着做某事（看能否达到预期的结果）

3. stop to do something开始做某事（停下正在做的事，开始做另一事）

　stop doing something停止做某事（停止正在做的事）

4. can't help to do sth.不能帮助做某事

　can't help doing sth.禁不住做某事

[小试牛刀]

1. The boy decided ______in Shanghai, which made his father a little surprised.

A. not to work B. to not work C. not working D. working not

2.-Would you mind ______ the door? -Of course not.

A. I opening B. me to open C. for me to open D. my opening

3. She ______ going out for a walk, but I'd rather stay at home watching TV.

A. wanted B. asked C. hoped D. suggested

4．After he had worked several hours, he stopped _____ a cup of coffee to refresh himself．

　A．to drink　 　B．drinking C．drink　　 　 D．drank

5．Although swimming is his favorite sport, yet he doesn't like _____ today．

　A．to swim　　B．swimming C．swim　　 　 D．to have swim

六. another, other, the other, others与 the others的区别

1.another 指不定数目（三个或三个以上）中的"另一个；又一个"，用来代替或修饰单数

数名词。如：Would you like another cup of tea? 你想再来一杯茶吗

2.the other通常指两个中的"另一个"，后也可接名词，常用的用法有：one......the other......。如：She has two daughters. One is a teacher, the other is a doctor.