单句语法填空

　　①Alice suggested taking(take) a photo together with the beautiful flowers.

　　②Go on to_do(do) the other exercises after you have finished this one.

　　③The grass has grown so tall that it needs cutting/to_be_cut(cut).

　　④I enjoy doing(do) morning exercises，though it means getting(get) up early.

　　⑤He couldn't afford to_buy(buy) a house so he decided to_rent(rent) one.

　　二、动词不定式和动词­ing形式作宾补

　　1．常跟不定式作宾补的动词有：advise，allow，ask，cause，encourage，expect，forbid，force，　invite，permit，persuade，tell，want，warn，wish等。

　　The teacher encouraged us to write a composition every week.

　　老师鼓励我们每周写一篇作文。

　　2．感官动词和使役动词后面作宾补的不定式不带to，但变为被动语态，作主补的不定式需带to。常见的词有：一感觉：feel；二听：listen to，hear；三使：let，have，make；五看：look at；see，watch，notice，observe等。另外，help后作宾补的不定式符号to可有可无。

　　What made you change your mind?

　　什么使你改变了主意？

　　We often hear him play the violin at home.

　　＝He is often heard to play the violin at home.

　　我们经常听到他在家里拉小提琴。

　　3．后接v.­ing形式作宾语补足语的动词：感官动词(see，hear，watch，notice，listen to，look at)，find，get，keep，leave，catch，have等。

　　They saw the water running down from the high mountain.

　　他们看到水从高山上流下来。

　　They had the light burning all night long.

　　他们整夜亮着灯。

　　[名师点津]　

　　感官动词后接不定式和v.­ing形式作宾补的区别：用v.­ing形式作宾补时表示其动作正在进行；用不定式作宾补时表示动作已发生了，即动作全过程结束了。

I heard her sing an English song.