在英语语法中，动词与不定式的结合使用是一种常见的表达方式，它能够丰富句子的意义并提供额外的语境信息。然而，并非所有动词都可以直接跟不定式作宾语，这就需要我们了解和掌握一些特定的规则和结构。

<例句>

She tried to explain. 

她试图解释一下。

<语法分析>

有些动词可以用不定式直接作宾语，如try, want, like, wish, hate, mean, pretend, begin, decide, learn, determine和expect等。还有些动词不能直接跟不定式作宾语，需用it代替不定式作宾语，这些动词有find, make, think, consider和feel等。也有些动词不能直接跟不定式作宾语，需在不定式前加连接代词或连接副词。有些动词可以跟不定式作宾语补语，如love, teach, ask, get, tell, invite, force, oblige和beg等。

<触类旁通> 

(1) Her father cannot afford to buy her a bike. 

她的爸爸无法给她买辆自行车。 

语法分析：不定式直接作宾语。

(2) I thought it impossible to arrive that place in one hour. 

我认为一个小时到达那个地方是不可能。 

语法分析：it代替不定式作宾语。

(3) Does she know which to take? 

她知道要哪一个吗？ 

语法分析：动词know不能直接用不定式作宾语，需在不定式前加连接代词或连接副词。

(4) She asked me to help her with lessons this evening. 

她请我晚上帮她补习功课。 

语法分析：有些动词可以跟不定式作宾语补语。

(5) I wait for you to decide. 

我等你做出决定。 

语法分析：有些动词也可跟不定式作宾语补语。

(6) Listen to me read the text. 

听我读课文。 

语法分析：使役动词和某些感官动词后可接不定式作宾语，在主动语态里，不定式省去to。

<巩固练习>

1. The birds refused to take him back.

2. She decided to do some experiments to test her theory.

3. He pretended to have finished it.

4. This has made it necessary for agriculture and industry to develop very quickly.

5. Do you consider it better not to go?

6. They know how to do it.

7. Nobody knows what to do next.

8. I've forgot which way to take.

9. She got young girls to learn nursing there.

10. I ask Tom to lend me some money.

11. I long for you to see him.

12. I hope you'll advise me what to do.

13. He made some candles to give light.

14. I made a big fire to keep off the wild animals.

15. I have found her to be friendly.

<参考答案>

1.to take 2. to do 3. to have finished 4. to develop 5. to go 6. how 7. what 8. which 9. to learn 10. to lend 11. to see 12. to do 13. to give 14. to keep 15. to be

通过这些练习和分析，我们可以更深入地理解动词与不定式的结合方式，并在实际的英语使用中更加灵活和准确。