1. To do, doing,done(2014) zhangli

2. non-finite verbs are often used as adverbials. A to infinitive is often used as an adverbial of purpose, and a verbing or verb-ed often refers to cause, time, manner, condition, etc 非谓语动词经常用作状语。不定式经常被 用做目的状语。现在分词和过去分词经常 指原因，时间，方式和条件等等。

3. 1 。 We use a to infinitive to express purpose. 我们经常用不定式表示目的。 Many people went to see Sanglan in the hospital _________(cheer)her up. to cheer

4. 2. We can use a verb-ing or verb-ed as the adverbial. A verb-ing or verb-ed can be used to express reason, time ， manner and condition. verb-ing or verb-ed 可以用来表示原因，时间，方 式和条件。 句子的主语和现在分词（ verb-ing ）之间构成主动 关系，而句子的主语和过去分词（ verb-ed ）之间 构成被动关系。

5. 练习 1 ） __________(inspire) by Sanglan’s story, the students decide to work harder at their lessons. 2) _________(travel) around the city, the man felt uncomfortable because of the noise. 3)________(ask) when he would arrive, he said it was uncertain. Inspired Travelling Asked

6. 4)The children started for london, _________________.(sing and dance) 5) He walked up and down the room,________in thought.(lose) 6)_________(give)enough time, we will see the whole city. Singing and laughing l ost Given

7. 3.We can use a verb-ing or verb-ed after conjunction such as when, while,once if and although. 我们可以在连词 when, while,once if and although 后加上现在分词 和过去分词。 1 ）.When _________(wait) for the bus, he saw an old friend. 2.While __________(read) the article, I was thinking of how I would write the story. waiting reading

8. 3)Once________(catch), people who break the rules will be punished. 4) Although________(leave) alone, she didn’t feel lonely at all. 5)If __________(repair) well the washing machine could be used again. caught left repaired

9. 4.We can use haing+verb-ed and having been +verbed to make the active and passive perfect forms. 我们用 haing+done 构成分词完成式的主动， having been done 构成分词完成式的被动。 1)_______________(make) our plan, we’ll put it into practice. Having made

10. 5.the negative word not usually appear before non- finite verbs. 否定词 not 常位于非谓语动词之 前。

11. 练习 25 页 1 。 to learn how to ski. 2.Accompanied by an experienced ski instructor 3.Thinking that she knew how to ski well 4.skiing downhill 5.Not expecting trouble

12. 6.Checked at the nearest hospital 7.Hearing the news 8.Not knowing how serious the situation was 9.Arriving at the hospital 10.properly treated