“一、二、三、四法”巧记10个虚拟动词英语中有些动词后面的宾语从句或名词性从句的谓语动词，常使用虚拟语气“ should +动词原形”。可以这样使用的动词有许多，如果要逐个记忆是比较困难的。本节课老师就给同学们介绍一种巧记方法。
一. 单词记忆------------“一、二、三、四法”
这些单词后面的宾语从句中需要使用虚拟语气，谓语动词均为“should+动词原形”，其中should可以省略。
His father demanded that he (should) study medicine.
他父亲要求他学医。
I insisted that you (should) give me my money back.
我坚持要你把钱退给我。
The teacher suggested that the meeting (should) be put off till next Saturday.
老师建议把会议延期到下周六开。
suggest的名词
The King ordered that the man (should) be released.
国王命令释放那人。
Then let me strongly recommend that you (should) not buy them one of the dolls on this list.
让我强烈推荐你不要买下列玩偶中的其中一款。
The boss requires that you (should) be there tomorrow.
老板要求你明天来这儿。
二.拓展
除了这些动词后面的宾语从句需要使用虚拟语气，由这些动词演变后构成的主语从句，表语从句和同位语从句中，同样也要使用虚拟语气，从句中的谓语动词为“should+动词原形”结
构，should可以省略。
It is requested that all members (should )be present at the meeting.（主语从句）要求所有的成员出席这个会议。
My suggestion is that we (should) send a few people to help the other groups.(表语从句)
我的建议是我们派几个人去帮助别的小组。
The boss made the request that we (should) finish our work at once.(同位语从句) 老板要求我们马上完成我们的工作。
The order from the commander was that the troops (should) set off for the front immediately.
(同位语从句)
司令官的命令是部队立即开拔去前线。
His request that the matter (should) be looked into again was rudely refused by the police.
(同位语从句)
他的重新调查此事的请求被警方粗暴地拒绝了。
三.练习
1.The instructions require that we_________more than three tablets once.
A. not to take
B. not take
C. won’t take
D. wouldn’t take
解析：主句的谓语动词是require，因此宾语从句中需要使用“should+动词原形”结构，其中should可以省略。在宾语从句中主语we和谓语动词take之间为主动关系，所以宾语从句的完整句子为“we should not take more than three tablets once.”其中should可以省略，所以答案为B。
句意：使用说明要求我们不应该一次服用多于三片药。
解题思路：
①先观察主句的谓语动词是否是为虚拟语气结构的单词；
②判断从句主语和谓语动词之间的关系；
③写出完整的从句；
④省略掉从句中的should。
2. The suggestiion was that all the wounded__________to a nearby hospital.
A. be sent
B.are sent
C. would be sent
D.should sent
解析：本题考查的是suggestiion后表语从句。suggestiion意为“建议”是suggest的名词形式，它的表语从句中需要使用“should+动词原形”结构，其中should可以省略。在表语从句中主语all the wounded和谓语动词send之间为被动关系，所以表语从句的完整句子为“all the wounded should be sent to a nearby ho
spital.”此句中的should可以省略，所以答案为A。
解题思路：
①先观察名词性从句主句中的名词是否为接虚拟语气的单词；
②判断从句主语和谓语动词之间的关系；
③写出完整的从句；
④省略掉从句中的should。
四.总结
1. 使用“一、二、三、四法”记住10个虚拟动词
2. 注意虚拟语气中省略了should之后的否定和被动语态形式。
The instructions require that we (should) not take more than three tablets once. The suggestiion was that all the wounded (should ) be sent to a nearby hospital.
3.解题思路
①先观察题干中是否出现10个虚拟动词中的单词；
②判断从句中主语和谓语之间的主被动关系；
③写出完整的从句结构；
④把从句中的should省略掉，然后和选项进行比对。
五.真题演练
1.【2016年全国卷2】短文改错
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词:
2.只允许修改10处，多者(从第11处起)不计分。
The summer holiday is coming. My classmates and I are talking about how to do during the holiday. We can chose between staying at home and take a trip. If we stay at home, it is comfortable but there is no need to spend money. But in that case, we will learn little about world. If we go on a trip abroad, we can broaden your view and gain knowledges we cannot get from books. Some classmates suggest we can go to places of interest nearby. I thought that it is a good idea. It does not cost many, yet we can still learn a lot.
2. It is recommended that the project________until all the preparations have been made.
A. is not started
B. will not be started
C. not be started
D. is not to be started
3. I suggested to my father that we ________ to Dalian for a holiday this winter, but the expression on his face suggested that he ________ to it.
A. should go; shouldn't agree
B. would go; shouldn't agree
C. go; didn't agree
D. would go; didn't agree
4. 【题文】短文填空
阅读下面一段材料, 在空白处填入适当的内容或括号内单词的正确形式.
Many parents find that their children do not listen to them. This is ____1____ common problem that is a result of ____2____ (grow) pains. Be patient. Most children soon grow out of this time. I agree that your son ____3____ (need) to keep up with his studies, ____4____ this will influence the rest of his life. You should insist that he ____5____ (do) his homework.. Take your son to a restaurant he enjoys,
____6____ have a quiet talk with him. Try to find out ____7____ he is acting this way. You should be ____8____ (prepare) to listen to him and hear his side of the story. Both being a teenager and being a parent can be very difficult. ____9____, don' t give up. With a little bit of ____10____ (patient) and communication, many of these problems can be solved.
5. We require that the tour leader______us immediately of any change in plans.
A. inform
B. informs
C. informed
D. had informed
6. Her mother insisits that she _______skating with her brother.
A. went
B. go
C. goes
D. will go
参考答案与解析：