掌握状语从句省略规则还不够，还要通过不断的练习巩固

并不是所有的状语从句都能省略，也不是指定类型的状语从句都能省略。状语从句省略的最大原则是从句的主语与主句的主语一样，其他细节要遵循具体的连词规则。

一、请选择正确的选项来完成下面的句子

1. ___ the age of 21, he was able to gamble in Las Vegas.

a. When reached    b. Reached

c. As reaching    d. Upon reaching

2. ___, Martha was watching her favorite TV program.

a. While Penchart talking to his friend

b. While Penchart was talked to his friend

c. While Penchart was talking to his friend

d. Penchart was talking to his friend while

3. Before ___ visit my brother and his family, I will need to finish all of my business dealings with my clients.

a. leaving for North Dakota    b. leaving for North Dakota to

c. left for North Dakota to    d. I leaving for North Dakota to

4. ___ , the student won a $10 million lottery.

a. While worked on the computer

b. While working on the computer

c. While she working on the computer

d. Working on the computer while she

5. Since ___ his MBA studies, Selim has secured a great job as a finance manager of a major corporation in Turkey.

a. he finishing    b. finishing

c. finished    d. he finish

6. Joo Kyung always watches TV after ___ her homework.

a. finished    b. finishing

c. she finished    d. she finish

7. ___ his laser pointer to point to an example on the board, the teacher carefully explained the meaning of "animal" idioms.

a. Using    b. Used

c. While he using    d. While he was used

8. ___ to buy a car, she took the bus every morning to work.

a. Because she unable    b. Being unable

c. Be unable    d. Because she were unable

9. ___, I discovered that my stereo had been stolen.

a. On that looking into my car

b. When I look into my car

c. Looking into my car when I

d. On looking into my car

10. ___ so dry during the summer, it is prohibited to light camp fires.

a. The forest area in the San Bernardino mountains is

b. Being the forest area in the San Bernardino mountains is

c. Because the forest area in the San Bernardino mountains

d. Being the forest area in the San Bernardino mountains was

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二、答案、参考翻译及解析

1. d

解析：As 引导的时间状语从句省略时要去掉 as，因此不选 c；跟 as soon as 类似，when 引导的时间状语从句表示动作的先后发生时，as soon as 和 when 变成 upon/on，然后动词变成 -ing 形式，因此不选 a；在时间状语从句的省略中，动词形式只有 -ing 一种，因此 b 也错了，所以选 d（Upon reaching）。

2. c

解析：主句的主语是 Penchart，它跟从句的主语 Martha 不一致，因此该状语从句不能省略，所以选 c（While Penchart was talking to his friend）。

3. b

解析：c 和 d 省略语法错误；没有 leave (for) do 的用法，所以选 b（

leaving for North Dakota to），不定式短语在句中作状语表目的。

4. b

解析：根据 while 引导的时间状语从句的省略规则，只有 b 正确，所以选 b（While working on the computer）.

5. b

解析：根据 since 引导的时间状语从句的省略规则，只有 b 正确，所以选 b（finishing）.

6. b

解析：根据 after 引导的时间状语从句的省略规则，只有 b 正确，所以选 b（finishing）.

7. a

解析：同题4.

8. b

解析：根据 because 引导的原因状语从句的省略规则，只有 b 正确，所以选 b（Being unable）.

9. d

解析：从选项来看，符合省略规则的只有选项 d（On looking into my car）.

10. a

解析：b 和 d 语法错了；c 不符合 because 的省略规则，所以选 a（The forest area in the San Bernardino mountains is）.