1、.用所给单词的适当形式填空1It is time that the government (take) measures to protect the rare birds and animals.2Jack (not arrive) yet, otherwise he would have phoned me. 3He talks as if he (be) in the USA for many years.4Its strange that he (not join) the meeting yesterday. 5If only I (not take) his advice.6The
2、 order is that everyone (give) a fiveminute talk in class.7If I bus this morning, I would not have been late for school.8If he come today, I might be free to talk with him.答案：1. took 2. didnt arrive 3. had been 4. didnt join 5. had not taken6. (should) give 7. had aught 8. were.单项填空1The man insisted
3、 that he _ nothing wrong and_ free.Adid; set Bhad done; should be set Cdo; be set Dhad done; must be set解析：选B。句意：这人坚持认为他没有做错什么，并坚决要求立即被释放。insist作“坚持认为”讲时，不用虚拟语气；作“坚决要求”讲时，宾语从句用虚拟语气；其构成为should do, should 可以省略。2Without electricity human life _ quite different today.Ais Bwill beCwould have been Dwould
4、be解析：选D。该句中的介词短语起了虚拟条件句的作用，因为假设的是现在的情况，所以主句中的谓语动词应该用“would动词原形”的形式。3He _ the letter typed, but he decided to handwrite it and send it in person in order to show his sincerity.Amust have had Bshould have hadCwould have Dcould have had解析：选D。考查虚拟语气。句意：他本来能够把那封信打印出来的。但他决定亲手写出来并送去以表诚意。根据but he decided .
5、可知前句表示过去本能做某事，句子谓语为could have done。4His suggestion that we _ an engineer to find out what is wrong with the machine sounds reasonable.Asend for Bshall send forCcan send for Dmust send for解析：选A。句意：他建议我们派人请个工程师找出机器出了什么毛病，这听起来很有道理。suggestion后的同位语从句一般用虚拟语气，即从句谓语形式为“(should)动词原形”。5The local peasants gave
6、 the soldiers clothes and food without which they _ of cold and hunger.Awould die Bwill dieCwould be dead Dwould have died解析：选D。考查虚拟语气中的含蓄条件句用法。句意：当地农民给那些士兵衣服、食物，没有这些东西，他们(这些士兵)就会饥寒而死。本句是一个含有定语从句的复合句，主句为：The local peasants gave the soldiers clothes and food.定语从句的先行词是clothes and food，将先行词代入定语从句后为：The
7、y _ of cold and hunger without clothes and food.由主句内容可知说话者介绍的是过去的事情，因此设空处应该是与过去事实相反的虚拟语气，谓语动词应该是would/should/could/mighthave过去分词，故答案为D。6If only we _ then that the disease was curable!Aknew Bcould knowChad known Dwould have known解析：选C。句意：要是我们当时就知道这个病是可以治愈的就好了。if only引导的句子用虚拟语气，表示与过去的事实相反时，谓语动词用过去完成时。
8、7How was your trip?Oh, I missed it. I wish I _ my vacation there.Aam spending Bwill spendChave spent Dhad spent解析：选D。句意：“你的旅行还好吧？”“哎，我错过了，我多么希望能去那度假啊！”miss“错过，没赶上”。由此得知用过去完成式，表示与过去事实相反的愿望和假设。8Yesterday, Jane walked away from the discussion.Otherwise, she _ something she would regret later.Ahad said
9、BsaidCmight say Dmight have said解析：选D。句意：昨天讨论的时候，简走开了。否则她会说些以后让她后悔的话。otherwise在此相当于if she had not walked away from the discussion，即暗示一个与过去事实相反的虚拟条件句。9Ive told everyone about it.Oh, Id rather you _Adont Bhadnt Ccouldnt Dwouldnt解析：选B。would rather 后接从句时，从句谓语的时态规律是：用过去式表示与现在或将来事实相反的情况，用过去完成式表示与过去事实相反的情况。10If I _ my umbrella with me when I came out this morning, I _ wet now.Ahad taken; should not beBhave taken; am notCtook; should not beDhad taken; cant be解析：选A。题干为错综时间条件句，条件从句表示与过去事实相反的假设，故从句谓语形式为had done; 主句表示与现在事实相反的假设，故主句谓语形式为“should/could/would/might动词原形”，故A项正确。