It was some time _______ I realized the fact ...

It was some time _______ I realized the fact that I had been cheated by the salesman.

A．until             B．before            C．unless            D．since

高二英语单项填空中等难度题查看答案及解析

Had it not been for the fact that she was ________ with her work, she would have attended the concert

A. occupied         B. absorbed             C. devoted        D. concentrated

高二英语单项填空中等难度题查看答案及解析

Had it not been for the fact that she was_________ with her work, she would have attended the concert

高二英语单项填空简单题查看答案及解析

It was ______ in the exam that ______ how much time I had wasted.

A．not until I failed;I realized                 B．until I failed; I didn’t realize

C．not until I failed; did I realize               D．until I failed; I realized

高二英语单项填空中等难度题查看答案及解析

It was the second time that I_______of the changes of the timetable .

高二英语单项填空简单题查看答案及解析

The fact that ants are fascinating insects has been known for some time. Now, scientists have discovered a large number of wood ants living in an abandoned underground storehouse in Templewo, Poland, despite having no obvious source of food.

Polish zoologist Wojciech Czechowski and his team began studying the underground colony in 2013. They found the ants built a 60-cm high nest in the soil directly over the storehouse vertical air pipe. As years passed, the metal covering on the pipe eroded, leaving behind a hole that thousands of worker ants accidentally slip into each day as they go about their daily chores. The scientists say that there are no sources of food in the storehouse. This means that the insects live in a state of near starvation.

In July 2015, the researchers disturbed part of the ant nest in search of larvae (幼虫), cocoons(茧), and queens. They found nothing, leading them to suspect that the lack of food and cold temperatures made reproduction impossible and that the group tending the nest is entirely made up of non-reproductive female workers. Their population is refilled every year, by a new rain of unfortunate ants that slide down the hole. The researchers say that when they returned in January 2016, the nest had been repaired. It appears that despite the terrible conditions, the worker ants do not stop constructing their nest.

Wood ants are known for their ability to adapt to bad living conditions. In this case, the millions of worker ants trapped in the storehouse have no choice. But instead of losing hope, they are making the best of the situation—a classic example of “when life gives you lesions make lemonade.”

1.How did the wood ants arrive in the storehouse?

A. They fell down there by accident.

B. The research team brought them there.

C. The storehouse builders left them there.

D. They were attracted by the environment.

2.What does the underlined word “eroded” in Paragraph 2 probably mean?

A. Expanded.　　 B. Rotted.

C. Exploded.　　 D. Melted.

3.What did the researchers find in the nest?

A. Larvae.　　 B. Cocoons.

C. A queen.　　 D. Worker ants.

4.Why did the population of wood ants remain steady?

A. They had enough food.

B. They were able to reproduce.

C. They adapted to the conditions.

D. They had new comers to join them.

高二英语阅读理解中等难度题查看答案及解析

Was it not until you began to work ____ how much time you had wasted?

A. did you realize               B. that you realized

C. did you not realize            D. that you didn’t realize

高二英语单项填空中等难度题查看答案及解析

Was it not until you began to work ________ how much time you had wasted?

A. that you realized　　 B. did you realize

C. did you not realize　　 D. that you didn’t realize

高二英语单项填空中等难度题查看答案及解析

Had it not been for the fact that about 30 pupils __________ in the state of Connecticut

a fortnight ago, their parents ___________ in deep sorrow now.

A. had been killed, wouldn’t be

B. were killed, couldn’t be

C. would have been killed, mightn’t be

D. should be killed, wouldn’t be

高二英语单项填空中等难度题查看答案及解析

Had it not been for the fact that about 30 pupils __________ in the state of Connecticut a fortnight ago, their parents ___________ in deep sorrow now.

A．had been killed, wouldn’t be

B．were killed, couldn’t be

C．would have been killed, mightn’t be

D．should be killed, wouldn’t be

高二英语单项填空中等难度题查看答案及解析