当状语从句主语与主句主语一致时,从句中的主语和be 都可以省略 OG10TH 第一题
The Wallerstein study indicates that even young men and women still experience some of the effects of a divorce occurring when a child. (A) occurring when a child (B) occurring when children (C) that occurred when a child (D) that occurred when they were children(D) (E) that has occurred as each was a child
该题的A,B选项就是典型的条件状语从句的省略
下面是我从网上找的一些练习,楼主可以看看,加深理解
If untreated,it would produce a powerful poison that would kill the patient. 这句话是状语从句的省略现象,在if后省略了it were(因为这句话使用了虚拟语气,所以it后面使用were。) 状语从句的省略现象是学习的一个热点问题,需要引起注意。先请完成下面两道单项选择题。 The boy will make a lot of trouble when_____alone. A.leaving B.leave C.left D.beingleft Try to explain this new theory and give actual examples_____. A.if it needed B.when necessary C.where they are possible D.when you are possible 答案及分析: 1)答案为C.句中when引导的时间状语从句补充完整为when he is left alone.省略了主语he及动词is. 2)答案为B.句中when引导的时间状语从句补充完整为when it is necessary(to explain this new theory and give actual examples.)省略了形式主语it及动词is. 有些表示时间、条件、让步、地点以及方式状语从句中,有两种情况可以出现省略现象。 谓语包含动词be的某种形式,主语与主句的主语一致,可以将从句的主语及动词be省略,如上面1)所示。 谓语包含动词be的某种形式,主语为形式主语it。可以将从句的主语及动词be省略,如上面2)所示。 请学习下列两组句子,括号中为省略部分。 第一组: Look out for cars when(you are)crossing the street.(注:主句为祈使句,主语是you) When(it is)taken a ccording to the directions,the drug has no side effects. Although(she was) not yet nine months old,she was able to walk without support. Fill in the blanks as(you are) asked. If(heis) not invited,he won’t go to your birthday party. 第二组: If(it is) necessary(to copy the letter),I’ll have the letter copied. Fill in the blanks with articles where(it is) necessary(to fill in the blanks with articles.) As(it was) planned(that they met on January 20 at the school gate),they met on January 20 at the school gate. 注:在第二组句子中,为了避免重复从句中真正的主语也省略掉。 练习:请选择最佳答案。 1.If____,the experiment will be successful. A.do carefully B.did carefully C.carefully done D.doing carefully 2._____in the dark,his head hit against a tree. A.When walking B.When he was walking C.Walked D.He was walking 3.Will you go and attend her party? --No,___invited to. A.if B.when C.for not D.Even if 4.You mustn't touch it unless____. A.asking to do B.asked to C.asking to D.to be asked 答案及浅析: 1.C.所需填空的前面省略it(the experiment)is. 2.B.B项中的when引导是时间状语从句。主句的主语是his head,而walking的动作的发出者不可能是his head,因此不能选择A.D项是一个完整的简单句,和后面的句子之间没有连词,因此不正确。C项为过去分词,不能选择。 3.空后面省略了I am.答句为省略句,完整的句子为:“I won’t go and attend her party even if I am invited to her party.” 4.B.unless后面省略了you are.
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