语态

　　例题：The unit of measurement known as foot has originally based on the average size of the

　　A B C

　　human foot. 97.69

　　D

　　【答案】B has改为was. be based on/upon表示“以…为基础/根据” 根据题意，应该把has 改为be的过去时.所以用was.

　　1. The course would have been offered this term, but it cancelled because too few students

　　A B

　　had registered before registration closed. 02.69

　　C D

　　【答案】B。应改为;was cancelled , 被动语态，因为cancel 是及物动词，而后面没有跟宾语，所以应考虑是被动语态。

　　2. Many unexpected problems have been arisen in the course of the reconstruction of the city. 94.63

　　A B C D

　　【答案】B arise“出现”，属于不及物动词，没有被动式。应该改成have arisen。

　　3. Lewis had to travel by bus as his car had been damaged in an accident some days before and

　　A B C

　　he was failed to get it repaired.0504.49

　　D

　　【答案】D。应改为failed。Fail to do 为固定用法，不需要用be.

　　4. These part-time students expect to offer some jobs on campus during the coming summer vacation. 0404.49

　　A B C D

　　【答案】A 应改为be offered。句子意思：学生们期望被给一份工作。学生是被给予工作，用被动。

　　5. Red and green light, if mixing, in the right proportion, will give us yellow. 0311.50

　　A B C D

　　【答案】B 应改为mixed，因为分词和主语：“red and green light”是动宾关系，因此要用过去分词。本句的意思是：“红灯、绿灯混合到一起，如果比例正确的话，就会变成黄色。

　　虚拟语气

　　例题. If you will buy one box at the regular price, you would receive after one at no extra cost. 92.67

　　A B C D

　　【答案】B 在条件状语从句中，将来时应该用动词现在时表示。

　　1. We are all for your proposal that the discussion is to be put off. 0804.50

　　A B C D

　　【答案】D 应改为should be put off。句意为“这个讨论应该被推迟”

　　2.It is about time that we go to supper, for we still have a meeting to attend this evening. 0704.53

　　A B C D

　　【答案】B应改为went to supper. It is time that…后面要用虚拟语气，即用过去式表示。

　　3. He wished he didn’t tell her the truth that brought her so much pain. 0611.48

　　A B C D

　　【答案】B应改为 hadn’t told。 wish 后若表示对过去情况的虚拟时，用过去完成时。

　　4. It is very important that the students’ voice is heard by the authorities of all our schools. 0611.52

　　A B C D

　　【答案】B应改为 be heard。important后面的从句中要用虚拟语气should+动词原型，should可以省略

　　5. “Shall I give you a cheque for $10?” “I’d rather you give me $10 in notes.” 0604.52

　　A B C D

　　【答案】C 改为gave。虚拟语气

　　6. We strongly suggest that Smith is told about his physical condition as soon as possible. 0311.51

　　A B C D

　　【答案】C 应改为be told，因为是suggest引导的宾语从句，谓语动词省略了should。本句的意思是：“我们强烈建议告诉尽快史密斯先生他的身体状况。”

　　7. The law I am referring to requires that everyone who owns a car has accident insurance. 02.67

　　A B C D

　　【答案】D。应改为 have。 suggest, insist, order, demand, request, command, require等动词引导宾语从句时， 要用虚拟语气，谓语动词要should (可以省略)+原形动词。They requested that the students (should) learn the second language.他们要求学生要学第二外语。

　　8. It is important that she goes to see the doctor immediately. 99.68

　　A B C D

　　【答案】C it is+ natural (necessary, strange , important, imperative) that… 句型中，that引导的主语从句中要求使用虚拟语气，谓语动词用(should)+do形式。把C改为should go就对了。

　　9. He will not do it had he known how serious the outcome would be. 0511.49

　　A B C D

　　【答案】A. 应改为would not have done. 综合全句看，这是表示对过去情况的虚拟假设，固定用法：would not have done….if had done…, 此处had he known 为if he had done的倒装省略。

　　10. If your uncle was able to finish fixing the radio, he would have brought it back to you.

　　A B C D

　　【答案】A. 从句意可以判断出是对过去情况的虚拟。If从句用过去完成式，主句用would have done。应改为had been able to。