1．  No sooner had we reached the top of the hill __ we all sat down to rest.
A than  
B then 
C when 
D until 

2．  I haven’t seen Mary these past few days; I’m afraid she__ herself for some time.
A hasn’t been feeling  
B hadn’t been feeling  
C isn’t feeling  
D wasn’t feeling

3．  She___ upon me, saying I was to blame.
A retorted   
B resorted  
C retreated   
D resolved

4．  It is difficult to__ which party will win the election.
A conclude  
B favor  
C predict  
D warn

5．  The accident__ just as we were leaving home.
A arose   
B rose  
C happened  
D proceeded

答案：1-5AAACC

1． 选A no sooner… than刚……就…… ，主句一般用过去完成时，从句用一般过去时，no sooner放于句首，语序倒装。He had no sooner arrived home than he was asked to start on another business.
When要和 hardly, sacredly, barely,连用，意义和no sooner… than相同，如 Hardy had I closed my eyes when it began to imagine the most fantastic shapes.

2． 选A。现在完成进行时表示动作从过去某一时间开始，一直延续到现在，可能还要继续下去，通常与表示一段时间的状语连用。如He has been working on this essay since this morning.

3． 选retort反驳 He retorted the invectives on her.
Resort求助，诉诸She resorted to stealing when she had no more money.
Retreat撤退 At last we forced enemy to retreat from the town.
Resolve解决，消除 The difference among them should be resolved by consultation.

4． 选conclude断定，作出结论 The jury concluded from the evidence that the accused man was not guilty.
Favor支持，赞成，后常接名词作宾语 We favor your proposal.
Predict预言，预告The Seismology Bureau predicts that there will be an earthquake in the latter half of the year.
Warn警告，告戒 He warned me that there were pickpockets in the crowd.

5． 选C. arise开始，出现，受到注意，大都以抽象名词作主语。 A discussion arose about the best way to pay.
Rise不及物动词，通常作“升高，向上去” My hopes are rising.
Happen发生，通常用来强调一件事情是偶然发生的。 Nobody realized what had happened to the great liner.
Proceed继续进行，开始 As soon as he came in, he proceeded to tell us all his troubles.

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