1) I've arranged to meet him at ten o'clock.

2) I didn't expect to find you here.

2. 在动词teach, decide, wonder, show, learn, forget, ask, find out, advise, discuss等常跟"疑问词+to do不定式"。 3) I haven't decided whether to sell it or not.

4)I don't know what to do / where to go /who(m) to ask/when to stop / how to get there.

即景活用：完成句子

1) She pretended ___________________________(没看到我)when I passed by.

2) What a poor memory! I forgot____________ money from him yesterday. But today I forgot _____________the money to him.

多么差的记忆力！昨天我忘了向他借过钱，但今天我又忘了把钱还给他。

III. 不定式作宾语补足语vt+O+to do

1) The doctor warned him not to eat too much meat.

2) I didn't expect you to arrive so early.

归纳拓展：

不定式作宾补的动词有：advise, allow, ask, beg, cause, drive, encourage, expect, forbid, force, get, intend, invite, would like/love, order, permit, persuade, prefer, tell, want , warn, wish 等。

　Eg. We don't allow people to smoke in the lecture hall.

即景活用：单句语法填空

He begged me _______________(not tell)his father about it.

IV. 不定式作表语

1) The problem is to find a solution. 2) What I would suggest is to start work now.

归纳拓展：

主语是以aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为中心词的名词词组，或以what引导的名词性从句表示，后面的不定式说明其内容，如：

1) My idea is to climb the mountain from the north.

2) What I would suggest is to start work at once

即景活用：1) ____________________. 眼见为实。

2) My suggestion is ______________________________(立刻开始工作).

V. 不定式作状语

1) They got to the cinema, only to find all the tickets had been sold out.