Not until we have had a chance to discuss it ...

Not until we have had a chance to discuss it thoroughly ________ perfectly.

A．the problem has been settled

B．has the problem been settled

C．will the problem be settled

D．the problem was settled

高三英语单项填空中等难度题查看答案及解析

—When shall we set out to handle the problem we came across last week?

—Not until 　　　 a chance to discuss it thoroughly.

A. we have had　　 B. will we have had　　 C. have we had　　 D. we will have had

高三英语单项填空中等难度题查看答案及解析

I’m not a little tired today after giving the room a thorough cleaning and I have never had ______today.

A. as tiring a day as　 B. as a tiring day as　　 C. tiring as a day as　　 D. day as a tiring as

高三英语单项填空中等难度题查看答案及解析

As a kid, Joanna Buckley wasn’t interested in science — until she had a chance to try it. That happened when she got a chemistry set for Christmas.

“Over the course of a few weeks, I’d completed every experiment. But in the process, I polluted my parent’s dining room carpet and burnt the kitchen worktop with the spirit burner,” she says.

Now science is Buckley’s job. She works in the chemistry department at the University of Sheffield in England. “I realize, first-hand, how important it is to have something or someone to show you why science is so great,” she says. Now the good news is that citizen science appears.

Citizen science takes the fun of experimenting a step further than Buckley’s at-home chemistry kit. That’s because these experiments are real, looking for novel answers.

“Compared with a one-off experiment, what’s cool about citizen science is that students get that this has a purpose,” Prunuske says. “Students want to do a good job, because they know scientists are going to use the new data in their own research.”

Long agrees. “Kids like that it’s real. And they like that it’s important, that it matters.” Citizen-science projects have made big discoveries. One found a previously unknown galaxy cluster （星系团）. Another project helped assess how much damage a big earthquake had caused in Japan. And one of the first citizen-science projects helped scientists learn where butterflies go every winter.

Some adults worry about teens losing interest in science. That’s one reason they hope that fun, exciting citizen-science projects can help them keep in touch, Long says. And she has some evidence that it’s working, “Last year, we did have a couple of students say, ‘I really think I want to be a scientist now. ’”

1.What is the purpose of paragraph 2?

A.To support trials can make teens interested in science.

B.To prove failure is the mother of success in science.

C.To state Buckley has a talent for science.

D.To praise Buckley for her strong will.

2.Why is citizen science more fun?

A.It carries out experiments frequently.

B.It must carry out experiments in groups.

C.It needs to seek for new solutions.

D.It demands to handle complex problems.

3.What can we know from what Prunuske said?

A.She participated in the experiment.

B.She took pride in what students took up.

C.Citizen science is popular with students.

D.Scientists are willing to employ students.

4.What is Long’s attitude towards citizen science?

A.Concerned. B.Supportive.

C.Doubtful. D.Unclear.

高三英语阅读理解中等难度题查看答案及解析

We________the opportunity to go to France, had it not been for Mary’s help.

A．would have lost  B．should lose  C．might lose   D．must have lost

高三英语单项填空中等难度题查看答案及解析

-----He should have come to join in the thorough cleaning.

-----He________, I think. It’s not his turn.

高三英语单项填空简单题查看答案及解析

— He should have come to join in the thorough cleaning.

—He _____, I think. It’s not his turn.

A. needn’t have to   B. needn’t have      C. didn’t have to       D. doesn’t need to

高三英语单项填空中等难度题查看答案及解析

Not until he went through real hardship _____ the love we have for our families is important.

A. had he realized　　 　　 B. did he realize

C. he realized　　　 　　　　 D. he had realized

高三英语单项填空中等难度题查看答案及解析

Not until he went through real hardship _____ the love we have for our families is important.

A. had he realized　　     B. did he realize　　     C. he realized　　　     D. he had realized

高三英语单项填空简单题查看答案及解析

Not until he went through real hardship _____ the love we have for our families is important.

A. had he realized　　 　 B. did he realize

C. he realized　　 　　　 　　 D. he had realized

高三英语单项填空中等难度题查看答案及解析