1、状语从句的省略与非谓语动词,在英语学习过程中，我们经常遇到状语从句中的省略用法，它是一种简洁、精练、地道的文字表达形式，也是值得关注的一个高考考点。 状语从句的省略规则 如果主句和从句的主语一致, 且谓语包含系动词be的某种形式，那么可以将从句的主语及动词be省略。 省略结构中非谓语的使用是高考的热点。,一、when, while ,until引导的时间状语从句 【经典例句】 1. When (it is) taken according to the directions，the drug has fewer side effects. 2. Do be careful when （ you
2、 are ） crossing the street. 3. Dont come in until (you are) asked to. 【高考链接】 1. (2013浙江卷)There are some health problems that, when _ in time, can become bigger ones later on. A. not treated B. not being treated C. not to be treated D. not have been treated,2. (2013福建卷) Anyone, once _ positive for H7
3、N9 flu virus, will receive free medical treatment from our government.A. to be tested B. being tested C. tested D. to test 3.(2012安徽卷) When _ for his views about his teaching job, Philip said he found it very interesting and rewarding. A. asking B. asked C. having asked D. to be asked,4. (12全国I) Fil
4、m has a much shorter history, especially when _ such art forms as music and painting. having compared to B. comparing to C. compare to D. compared to5. (06浙江)When _ different cultures, we often pay attention only to the differences without noticing the many similarities. A. compared B. being compare
5、d C. comparing D. having compared,6. (2004全国IV) It shames me to say it, but I told a lie when _ at the meeting by my boss.A. questioning B. having questioning C. questioned D. to be questioned 7. (2004全国II) When first _ to the market, these products enjoyed great success.A. introducing B. introduced
6、 C. introduce D. being introduced,二、if, unless, once 引导的条件状语从句。 【经典例句】 1. If （ it is ） properly treated, waste will do no harm to the environment. 2. Ill not go to the party unless （ I am ） invited. Once （ you are ） caught stealing in a supermarket, you will be punished.,1. (13江西) If _ to look after
7、 luggage for someone else, inform the police at once. A. asked B. to ask C. asking D. having asked, you inform the police at once,= If (you are) asked to look after,【高考链接】,2. (2009湖南) Every evening after dinner, if not _ from work, I will spend some time walking my dog. A. being tired B. tiring C. t
8、ired D. to be tired 3.(2007四川) The flowers his friend gave him will die unless _ every day. A. watered B. watering C. water D. to water,三、 though, although, even if, even though, however 等引导的让步状语从句。 【经典例句】1. Even if (I am ) invited to, I wont go to such a bad lecture. 2. Though / Although （ he was ）
9、 blamed for his mistake, the boy didnt seem to be angry. 【高考链接】 1.(2010全国) Though _to see us, the professor gave us a warm welcome.A. surprising B. as surprised C. surprised D being surprised,2. (2006广东) No matter how frequently _ , the works of Beethoven still attract people all over the world. A. performed B. performing C. to be performed D. being performed,Enjoy English Enjoy life!,
