初二英语虚拟语气在主语从句中的运用单选题30题(答案解析)

初二英语虚拟语气在主语从句中的运用单选题30题(答案解
析)
1.It is important that he _____ to school on time.
A.goes
B.go
C.went
D.will go
答案：B。

解析：在“It is important that...”这样的主语从句中，要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选B。

A 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

2.It is necessary that we _____ hard.
A.study
B.studies
C.studied
D.will study
答案：A。

解析：“It is necessary that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

3.It is suggested that he _____ more exercise.
A.takes
B.take
C.took
D.will take
答案：B。

解析：“It is suggested that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选B。

A 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

4.It is demanded that they _____ the work on time.
A.finish
B.finishes
C.finished
D.will finish
答案：A。

解析：“It is demanded that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

5.It is required that she _____ to the meeting on time.
es
e
C.came
D.will come
答案：B。

解析：“It is required that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选B。

A 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

6.It is advisable that he _____ a rest.
A.takes
B.take
C.took
D.will take
答案：B。

解析：“It is advisable that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选B。

A 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

7.It is recommended that they _____ carefully.
A.listen
B.listens
C.listened
D.will listen
答案：A。

解析：“It is recommended that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；
C 选项是过去式，不是虚拟语气在主语从句中的正确形式；
D 选项是将来时，也不符合要求。

8.It is essential that we _____ enough sleep.
A.have
B.has
C.had
D.will have
答案：A。

解析：“It is essential that...”主语从句中要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

9.It is urgent that he _____ immediately.
A.leaves
B.leave
C.left
D.will leave
答案：B。

解析：“It is urgent that...”主语从句中要用虚拟语气，谓
语动词用“should + 动词原形”，should 可以省略，所以选B。

A 选项是一般现在时第三人称单数形式，不符合虚拟语气要求；C 选项是过去式，不是虚拟语气在主语从句中的正确形式；D 选项是将来时，也不符合要求。

10
11.It is important that he ______ on time.
A.be
B.is
C.are
D.was
答案：A。

在“It is important that...”这样的主语从句中，要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B、C、D 选项都不是虚拟语气的用法。

12.It is necessary that she ______ hard.
A.study
B.studies
C.studied
D.will study
答案：A。

“It is necessary that...”句型中，主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时，C 选项是一般过去时，D 选项是一般将来时，都不符合虚拟语气的要求。

13.It is strange that he ______ so angry.
A.is
B.be
C.was
D.were
答案：B。

“It is strange that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选B。

A 选项不是虚拟语气，C、D 选项时态不对。

14.It is suggested that they ______ a meeting.
A.have
B.has
C.had
D.would have
答案：A。

“It is suggested that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是第三人称单数形式，C 选项是一般过去时，D 选项是过去将来时，都不符合虚拟语气的要求。

15.It is required that we ______ to school on time.
e
es
C.came
D.would come
答案：A。

“It is required that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是第三人称单数形式，C 选项是一般过去时，D 选项是过去将来时，都不符合虚拟语气的要求。

16.It is advisable that he ______ more exercise.
A.take
B.takes
C.took
D.would take
答案：A。

“It is advisable that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时，C 选项是一般过去时，D 选项是过去将来时，都不符合虚拟语气的要求。

17.It is essential that she ______ well-prepared.
A.be
B.is
C.are
D.was
答案：A。

“It is essential that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B、C、
D 选项都不是虚拟语气的用法。

18.It is proposed that they ______ a plan.
A.make
B.makes
C.made
D.would make
答案：A。

“It is proposed that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是第三人称单数形式，C 选项是一般过去时，D 选项是过去将来时，都不符合虚拟语气的要求。

19.It is recommended that he ______ a rest.
A.take
B.takes
C.took
D.would take
答案：A。

“It is recommended that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是一般现在时，
C 选项是一般过去时，
D 选项是过去将来时，都不符合虚拟语气的要求。

20.It is urgent that we ______ something.
A.do
B.does
C.did
D.would do
答案：A。

“It is urgent that...”后面的主语从句要用虚拟语气，谓语动词用“should + 动词原形”，should 可以省略，所以选A。

B 选项是第三人称单数形式，C 选项是一般过去时，D 选项是过去将来时，都不符合虚拟语气的要求。

21.It is important that we should develop new energy sources to protect the environment. If we continued to rely on fossil fuels, the earth would be in great danger.
The subject clause “It is important that...” requires the use of “should + verb” or just the verb in its base form. Here, “should develop” is the correct form.
22.It is necessary that everyone realize the importance of recycling. If people didn't recycle, waste would pile up everywhere.
The structure “It is necessary that...” demands the use of “should + verb” or just the verb in its base form. “should realize” is the proper choice.
23.If scientists didn't work hard on finding solutions to environmental problems, the future of the earth would be bleak.
This is a conditional sentence with a negative condition in the past tense. In such cases, the result clause uses “would + be + adjective”.
24.It is crucial that we take immediate action to reduce carbon emissions. If we didn't, the climate would change drastically.
The subject clause “It is crucial that...” requires the use of “should + verb” or just the verb in its base form. “should take” is correct.
25.If technology wasn't used properly, it could cause more harm than good.
This is a conditional sentence. The negative form “wasn't” in the condition clause leads to “could + cause” in the result clause.
26.It is essential that countries cooperate in addressing environmental issues. If they didn't, the problems would become insurmountable.
The structure “It is essential that...” demands the use of “should + verb” or just the verb in its base form. “should cooperate” is the right option.
27.If we didn't invest in research and development of clean energy, we would be facing a serious energy crisis.
This is a conditional sentence. The negative form “didn't invest” in the condition clause leads to “would be facing” in the result clause.
28.It is important that people be aware of the impact of their actions on the environment. If they weren't, the damage would continue to increase.
The subject clause “It is important that...” requires the use of “should + verb” or just the verb in its base form. “should be” is correct.
29.If we didn't take measures to protect wild animals, many species would become extinct.
This is a conditional sentence. The negative form “didn't take” in the condition clause leads to “would become” in the result clause.
30.It is necessary that we educate the next generation about environmental protection. If we didn't, the future of the planet would be
uncertain.
The structure “It is necessary that...” demands the use of “should + verb” or just the verb in its base form. “should educate” is the proper choice.。