四级词汇课堂笔记第五课
第5课
虚拟语气
一、虚拟语气的规则用法：
1主、从句都表示与过去事实相反：
从句的谓语动词用：had + 动词过去分词;
主句的谓语动词用：情态动词 + have + 动词过去分词。
注意：能用于虚拟语气的情态动词只有四个：should, could, would, might.
使用哪一个情态动词要由句子含义决定，考试中出现最多的是could, would.
2 主、从句都表示与现在事实相反：
从句的谓语动词用：动词过去式(如果是be则只能用were)
主句的谓语动词用：情态动词 + 动词原形。
3 主、从句都表示与将来事实相反：
从句的谓语动词用：were to + 动词原形(重点)、should + 动词原形、动词过去式;
主句的谓语动词用：情态动词 + 动词原形。
二、虚拟语气的特殊应用：
1 would rather + 句子，这时句子谓语动词用一般过去时来体现虚拟语气。
2 if only 如果，要是...就好了，if only + 句子，这时句子一定要用虚拟语气。
有两种形式可以体现虚拟语气：
a. 如果该句子如果表示与现在或将来事实相反，谓语动词用一般过去时。
b. 如果该句子如果表示与过去事实相反，谓语动词用过去完成时。
70. Look at the terrible situation I am in! If only I _B_ your advice.
A follow B had followed C would follow D have followed
47. If only the committee _D_ the regulations and put them into effect as soon as possible
A approve B will approve C can approve D would approve
注意：当if only后的句子表示与现在或将来事实相反，该用动词过去式来表示虚拟语气，而选项中又没有时，可以采用这种形式：would + 动词原形。
3 当以下动词后加句子时，句子应用虚拟语气，句子谓语动词的形式是：(should)+ 动词原形。
a. 表示建议、提议的：suggest, advise, propose, recommend, move.
b. 表示要求的：ask, demand, require, request, desire.
c. 表示指挥、命令的：order, command, direct.
d. 表示坚持，坚持认为的：insist.
4 it is + 第三点中动词的过去分词 + that引导的从句。
这样的结构中从句谓语动词形式为：(should)+ 动词原形。
以下几个形容词置于该结构中时也要用相同的形式来体现虚拟语气：
important, necessary, essential, obligatory(有义务的，强制性的，必须的)。
5 第三点中动词相应的名词形式 + that引导从句，该从句同样要用虚拟语气，
谓语动词形式为：(should)+ 动词原形。
经常用于这种结构的词有：suggestion, advice, proposal, recommendation, motion.
6 以下一些表达方式所在的句子一定要用虚拟语气。
or, otherwise, unless, but for
当遇到含有以上四个表达方式的句子时，先要判断该句是表示与现在、过去、还是将来事实相反，然后依照相应的虚拟语气规则用法的形式来确定句子结构。
含有下面三个表达方式的句子体现虚拟语气的形式是固定的：
lest, for fear that, on condition that
它们后面句子的谓语动词的形式都是：(should)+ 动词原形。
7 it is time 是...的时候了。
这个结构有以下两种变形形式，所用虚拟语气形式都一样：it is high time / it is about time.
这三个结构后面加的句子谓语动词都用一般过去时来体现虚拟语气。
8 注意以下两种情况下should + 动词原形中should不能省略。
这里should表示一种语气，经常被翻译成竟然。
a. 四个动词：think, believe, expect, suspect.
它们的否定或者疑问形式后面加句子，句子谓语动词用：should + 动词原形，should不能省略。
I dont believe that he should be cheated. 我不相信他也会被骗。
b. it is a pity, it is a shame 真遗憾，it is strange 真怪
以上三个结构后面加的句子谓语动词用：should + 动词原形，should不能省略。
错综时态的虚拟语气
错综时态的虚拟语气即指主句和从句在表达是与什么时态的事实相反上并不一致(比如主句要表达与现在事实相反而从句要表达与过去事实相反)，这种情况要采用对号入座的方法来处理，即主从句结构分别采用与其表达时态对应的结构。
60. If I hadnt stood under the ladder to catch you when you fell, you _A_ now.
A wouldnt be smiling B couldnt have smiled C wont smile D didnt smile
2. If you had studied the problem carefully yesterday, _C_.
A you wont find any difficulty now B you would not have found any difficulty now
C you would not find any difficulty now D you have not found any difficulty now
3. He would be studying at the university now if he _C_ the entrance examination.
A passed B have passed C had passed D should have passed
16. It is a shame that he _B_ that poor little girl!
A deceived B should deceive C deceive D deceiving
18. Mrs. bliss kept the door and the windows shut lest the noise outside _D_ her sons sleep.
A would interfere with B had interfered with
C interfered with D should interfere with
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21. The fifth generation computers, with artificial intelligence, _C_ and perfected now.
A) developed B have developed C are being developed D will have been developed
22. This ticket _C_ you to a free meal in our new restaurant.
A gives B grants C entitles D credits
A,B两项都要加双宾语，结构为：gives / grants sb. sth.
entitle sb. to sth. 使某人有权得到某物; credit A to B 相信A是由B造成的。
相信飞机失事是由飞行员错误造成的。 Credit the crash to the pilots mistake.
crash 坠落，坠毁(专指飞机失事); collision 碰撞(强调两个物体碰撞，如火车、汽车等)。
we are sorry, very sorry, terribly sorry, awfully sorry.
23. You _D_ her in her office last Friday; shes been out of town for two weeks.
A neednt have seen B must have seen
C might have seen D cant have seen
24. That was so serious a matter that I had no choice but _D_ the police.
A called in B calling in C call in D to call in
have no choice but to do sth. 别无选择，只能做...
25. She was so _B_ in her job that she didnt hear anybody knocking at the door.
A attracted B absorbed C drawn D concentrated
be attracted by 被所吸引; be absorbed in 全神贯注(专注)于做
be drawn in 被诱骗(诱使)做... ; concentrate on 专注于。
I was simply drawn in. 我是被诱骗上钩的。
27. At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly _B_ to another subject.
A committed B switched C favoured D transmitted
switch to another subject 转换话题; switch to another channel 转换。
28. It is politely requested by the hotel management that radios _C_ after 11 oclock at night.
A were not played B not to play C not be played D did not play
29. Although I like the appearance of the house, what really made me decide to buy it was the beautiful _D_ through the window.
A vision B look C picture D view
view n. 景色，风景，视野，视域。
30. Cancer is second only _B_ heart disease as a cause of death.
A of B to C with D from
具有比较意味的形容词都要与介词to搭配。
32. The manager needs an assistant that he can _A_ to take care of problems in his absence.
A count on B count in C count up D count out
presence n. 到场，出席; in ones presence 在某人在场的情况下。
count on=depend on 指望，依靠，依赖; count up 算出总数;
count in 把算在内; count out 把...排除在外。
33. The organization had broken no rules, but _A_ had it acted responsibly.
A neither B so C either D both
34. We gave out a cheer when the red roof of the cottage came _D_ view.
A from B in C before D into
come into view 进入视野，进入眼帘。 cheer n. 欢呼; cheers 干杯;
cheer-team 拉拉队; cheer-leader 拉拉队长。英语中为了干杯用介词to引起。
to your health 为了你的健康干杯; to friendship为了友谊干杯。 bottom up 先干了。
35. They took _D_ measures to prevent poisonous gases from escaping.
A fruitful B beneficial C valid D effective
take effective measures 采取有效措施。 valid adj. 有效的，成立的。
36. Doing your homework is a sure way to improve your test scores, and this is especially true _A_ it comes to classroom tests.
A when B since C before D after
sure 做定语时表示可靠的、稳妥的。 come to 谈到，提及。
37. Careful surveys have indicated that as many as 50 percent of patients do not take drugs _D_ directed.
A like B so C which D as
drug n. 药品，毒品。 gay adj. 放荡的，快乐的; n. 同性恋者，尤指男性同性恋。
so后面加过去分词表示一种程度。 as后面加过去分词时表示如同那样，正如那样。
53. I hope all the precautions against air pollution, _D_ suggested by the local government, will be seriously considered here.
A while B since C after D as
precautions n. 防治措施; precautions against 防治的措施。
after being + 过去分词，注意：after后面不能直接加过去分词。
38. In developing countries people are _C_ into overcrowded cities in great numbers.
A breaking B filling C pouring D hurrying
pour into 涌入，蜂拥而入。 break into 强行闯入。
39. Its reported that by the end of this month the output of cement in the factory _A_ by about 10%.
A will have risen B has risen C will be rising D has been rising
表达将来的行为在将来某时间之前完成用将来完成时。
40. If I had remembered _A_ the window, the thief would not have got in.
A to close B closing C to have closed D having closed
remember to do sth. 记得要做某事但没做。
41. There are other problems which I dont propose to _A_ at the moment.
A go into B go around C go for D go up
at the moment 目前，现在。 go into 谈论，讨论。
42. Dont get your schedule _C_; stay with us in this class.
A to change B changing C changed D change
43. It is quite necessary for a qualified teacher to have good manners and _A_ knowledge.
A extensive B expansive C intensive D expensive
extensive adj. 范围广大的，广博的; extensive knowledge 知识渊博。
expansive adj. 扩张的，面积广阔的; expensive adj. 昂贵的，高价的。
intensive adj. 仔细深入的，细致入微的。
54. The patients health failed to such an extent that he was put into _C_ care.
A tense B rigid C intensive D tight
to such an extent 到如此的程度。 intensive care 特级护理。
44. Jean doesnt want to work right away because she thinks that if she _B_ a job she probably wouldnt be able to see her friends very often.
A has to get B were to get C had got D could have got
46. A love marriage, however, does not necessarily _B_ much sharing of interests and responsibilities.
A take over B result in C hold on D keep to
not necessarily 未必; interests n. 利益。 take over 接管，接收;
result in 导致，结果是; hold on 坚持，挺住; keep to 坚持，遵守。
47. The ability to store knowledge makes computers different form every other machine _A_ invented.
A ever B thus C yet D as
48. Im not sure whether I can gain any profit from the investment, so I cant make a _C_ promise to help you.
A exact B defined C definite D sure
definite: unlikely to be changed 不可能被改变的; definite promise 不可能被改变的诺言。
49. I have kept that portrait _B_ I can see it every day, as it always reminds me of my university days in London.
A which B where C whether D when
which在定语从句中除了做主语就是做宾语，when在定语从句中只能做时间状语。
remind sb. of sth. 使某人想起某事。
50. The sports meet, originally due to be held last Friday, was finally _D_ because of the bad weather.
A set off B broken off C worn off D called off
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21. Until then, his family _D_ from him for six months.
A didnt hear B hasnt been hearing C hasnt heard D hadnt heard
until then 直到那时。 hear from sb. 收到某人的来信，得到某人的消息。
22. The conference _B_ a full week by the time it ends.
A must have lasted B will have lasted C would last D has lasted
见到介词by引导的时间状语，谓语动词就应是完成时态。
24. Physics is _B_ to the science which was called natural philosophy in history.
A alike B equivalent C likely D uniform
be alike to sb. 对于某人来说均是一样的。 be equivalent to 相当于。
All tastes are alike to him. 所有味道对他来说都一样。
27. The new appointment of our president _A_ from the very beginning of next semester.
A takes effect B takes part C takes place D takes turns
semester n. 学期; president n. 大学校长; take effect 生效，发生效力;
take part in 参与，参加; take place=happen 发生; takes turn to do sth. 轮流做某事。
28. The president made a _A_ speech at the opening ceremony of the sports meeting, which encouraged the sportsmen greatly.
A vigorous B tedious C flat D harsh
ceremony n. 典礼，仪式;表达在某个典礼上介词用at。 vigorous adj. 强劲有力的，强有力的。
harsh adj. 刺耳的，令人不愉快的; flat adj. 平淡无奇的; tedious adj. 冗长无聊的。
