[试一试] 试做以下几道选择题，注意所选项在句中的作用。
1. 北京) at my classmates’ faces, I read the same excitement in their eyes. (2010
A. Looking B. Look C. To look D. Looked
2. He had wonderful childhood, ________with his mother to all corners of the word. (2010安徽)
A. travel B. to travel C. traveled D. traveling
3. The lady walked around the shops, 江西) an eye out for bargains. (2010
A. keep B. kept C. keeping D. to keep
4. The lawyer listened with full attention, 四川) to miss any point. (2010
A. not trying B. trying not C. to try not D. not to try
Keys: 1-4 ADCB
[语法导入]
动词-ing形式作状语表示主语在进行某一动作的同时所进行的另一动作，它对谓语动词起修饰或陪衬作用，可以充当时间、条件、原因、让步、结果、方式或伴随状语。使用时要注意动词-ing形式与其逻辑主语主动意义及时间联系上要保持一致。动词-ing形式作状语往往是由相应的状语从句简化而来。-ing形式动词的逻辑主语与句子主语相同。
1. 作时间状语，常置于句首，也可置于句末，相当于一个时间状语从句。其前面可加when，while或before等词。如：
While waiting at the dentist’s, I read a short story.
→ ___(1)_____, I read a short story.
Before being in the army, he was an engineer.
→ ____(2)____ in the army, he was an engineer.
注意：状语从句的连接词有表达某种逻辑关系的意义。简化时，可把连接词改为意义相近的介词，整个从句简化为动名词后，作为介词的宾语：
When she arrived at the party, she found all the people gone.
与介词on和upon近似的连接词有when。上面的从句可以改写为：
→ ___(3)_____, she found all the people gone.
When she completed the project, she was promoted.
→____(4)____, she was promoted.
2. 作条件状语，常置于句首，相当于一个条件状语从句。如：
Reading carefully, you’ll learn something new.
→ ___(5)_____, you’ll learn something new.
3. 作原因状语，常置于句首，一般可替换成as或because引导的原因状语从句。如：
Being tired, he couldn’t go any further.
→ ____(6)____, he couldn’t go any further.
4. 作让步状语，常置于句首，其前可加上although, though, even if或even though等词。如：
Having failed many times, he didn’t lose heart.
→ ____(7)____, he didn’t lose heart.
5. 作结果状语，常置于句末，其前可加 thereby, thus, therefore等表示结果的词。如：
The book sold more than 500,000 copies a year, making it one of the best-sellers at that time.
6. 作方式状语，常用于某些动词或复合谓语之后。如：
Using the rich local natural resources, they develop their economy.
7. 作伴随状语，它表示分词短语所描述的情景是伴随着句子的情景而发生或存在的。含伴随状语的句子大都可以改为并列句，其基本含义不变。如：
They all stood there, watching closely as the magician did the tricks.
→They all stood there, and ____(8)____ closely as the magician did the tricks.
Keys: (One possible version)
(1) While I was waiting at the dentist’s (2) Before he was (3) On arriving at the party (4) Upon completing the project (5) If you read carefully (6) As he was tired (7) Though he had failed many times (8) watched
[即时演练]
I. 根据汉语提示完成句子。
1. ______ (已做好充分准备), we were ready for the journey.
2. ____ (由于不知道) anything about the accident, he went to work as usual.
3. ________ (由于病得严重) , the poor woman had to lie in bed all day.
4. The bus was held up by the snowstorm, ________ (于是导致了延误).
5. ________ (走出房间), he found the boy still there.
6. They trained hard these days, ______(希望赢得比赛).
7. _________________________(尽管工作很努力)，he couldn’t make enough money to pay off his debt.
8. _________________________(出国前)，he studied in Peking University.
II. 下列句中每句有一处错误，请改正。
1. Suffered from heart trouble for years, Professor White has to take some medicine with him wherever he goes.
2. Being admitted what she has said, I still don’t think that she has tried her best to do me a favor.
3. It has rained nonstop for half a month, completely ruined out holiday.
4. He sat back on the chair, took a book and began to read, to look rather at ease.
5. Suddenly, a tall man driving a golden carriage seized the girl and took her away, disappeared into the woods.