I saw her cleaning the classroom。

　　I saw him get on the bus.= He was seen to get on the bus。

　　53. something to eat/drink 一些吃/喝的东西(词不定式放在something等后修饰这些词)

　　I need something to eat. 我要一些吃的东西。

　　54. spend some time (in)doing sth /on sth 花费时间做某事(注意动词要用ing形式)(常考)

　　I spent 2 hours on homework.= I spent 2 hours in doing homework。

　　spend some money on sth/doing sth 买……花了多少钱

　　I ofen spend some money on the book. I ofen spend some money buying the book。

　　55. Sth is hard/difficult/easy to do . 做好某事很难/容易

　　The question is easy to answer。

　　56. stop to do sth停下来去某事(两件事)(常考)

　　stop doing sth 停止做某事(一件事)(常考)

　　stop sb (from) doing sth 阻止某人做某事(常考)

　　The two girls stopped to talk to me when they saw me。

　　The two girls stopped talking when they saw me。

　　I tried to stop my father from smoking,but failed。

　　57. take turns to do sth 轮流做……

　　They take turns to do the cleaning。

　　58. tell sb (not)to do sth 叫某人去(不要)做某事

　　He tell me not to swim in that lake。

　　59. There is no need (for sb) to do sth 对某人来说没必要做某事

　　There is no need for you to worry。

　　60. There is notime (for sb ) to do sth

　　have no time to do sth 没时间做某事

　　There is no time to think .I have no time to do morning exercises。

　　61. too…(for sb) to …… so… that… not… enough to do …太……以致不能

　　The boy is too young to go to school。

　　62. try/do one's best to do sth 尽力去做某事

　　try to do sth 试着(图)做某事

　　We must try our best to do the job。

　　63. used to do sth 过去常做某事

　　I used to live in the country。

　　used to be + adj/a +n 曾经是.。.

　　Mr wang used to be a teacher worker。

　　64. would like to do sth=want to do sth= feel like doing sth 想要做……

　　want/would like sb to do sth 想某人做……

　　I don't feel like walking very much today。

　　I would like you to go away。

　　65. warn sb (not) to do sth 警告某人做某事(或不要做某事)

　　His mother warned him not to go out in the evening。

　　66. Why don't you do sth ?= Why not do sth ? 为什么不……(表建议的句型，注意用动词原形)

　　Why not have a rest?

　　表示建议的句型还有：

　　Shall we……?

　　What /How about……?(如果是动词，要用ing形式)

　　How about going fishing?

　　67. Would you like (sb) to do sth ?Yes, I'd love to .

　　Would you like to join us?

　　Would you like me to buy you some food?

　　68. Would you mind doing sth ? 你介意做某事吗？回答：不介意(No+……)