All her time _______ research, the scientist has no time for films．
A．devoted to do B．is devoted to doing C．devoting to doing D．devoted to doing
高三英语单项填空简单题
All her time _______ research, the scientist has no time for films．
A．devoted to do B．is devoted to doing C．devoting to doing D．devoted to doing
高三英语单项填空简单题查看答案及解析
All her time _______ experiments, she has no time for films.
A. devoted to do B. devoted to doing C. devoting to doing D. is devoted to doing
高三英语单项填空中等难度题查看答案及解析
. All her time _______ experiments, she has no time for films.
| A．devoted to do | B．devoted to doing | C．devoting to doing | D．is devoted to doing |
高三英语单项填空简单题查看答案及解析
All her time________ experiments, she has no time for films.
A. devoted to do B. devoted to doing
C. devoting to doing D. is devoted to doing
高三英语单项填空中等难度题查看答案及解析
The engineer buries himself in work all day long and has no time for some outdoor activities, __________ he has the interest.
A. as if B. even if
C. so long as D. now that
高三英语单项填空简单题查看答案及解析
The engineer buries himself in work all day long and has no time for some outdoor activities, __________ he has the interest.
A. as if B. even if C. so long as D. now that
高三英语单项填空中等难度题查看答案及解析
Scientists say we are all born with a knack for mathematics. Every time we scan the cafeteria for a table that will fit all of our friends, we’re exercising the ancient estimation center in our brain.
Stanislas Dehaene was the first researcher to show that this part of the brain exists. In 1989, he met Mr. N who had suffered a serious brain injury. Mr. N couldn’t recognize the number 5, or add 2 and 2. But he still knew that there are “about 50 minutes” in an hour. Dehaene drew an important conclusion from his case: there must be two separate mathematical areas in our brains. One area is responsible for the math we learn in school, and the other judges approximate amounts.
So what does the brain’s estimation center do for us? Harvard University researcher Elizabeth Spelke has spent a lot of time posing math problems to preschoolers. When he asks 5-year-olds to solve a problem like 21+30, they can’t do it. But he has also asked them questions such as, “Sarah has 21 candles and gets 30 more. John has 34 candles. Who has more candles?” It turns out preschoolers are great at solving questions like that. Before they’ve learned how to do math with numerals and symbols, their brains’ approximation centers are already hard at work.
After we learn symbolic math, do we still have any use for our inborn math sense? Justin Halberda at Johns Hopkins University gave us an answer in his study. He challenged a group of 14-year-olds with an approximation test: The kids stared at a computer screen and saw groups of yellow and blue dots flash by, too quickly to count. Then they had to say whether there had been more blue dots or yellow dots. The researchers found that most were able to answer correctly when there were 25 yellow dots and 10 blue ones. When the groups were closer in size, 11 yellow dots and 10 blue ones, fewer kids answered correctly.
The big surprise in this study came when the researcher compared the kids’ approximation test scores to their scores on standardized math tests. He found that kids who did better on the flashing dot test had better standardized test scores, and vice versa (反之亦然). It seems that, far from being irrelevant, your math sense might predict your ability at formal math.
1.From the first two studies, we can learn that estimation center ________.
A. is divided into two separate mathematical areas
B. can help figure out numerals and symbols problems
C. functions independently in both kids’ and adults’ brains
D. works better when symbolic parts are injured or undergrown
2.What most surprised Justin in the study of 14-year-olds?
A. The variety of math abilities in different students.
B. The link between technology skills and estimation skills.
C. The difficulty of the task as the number of dots increased.
D. The connection between estimation skills and formal math ability.
3.What could be the best title for the passage?
A. Born with a Sense of Math
B. Go beyond What You Can Learn
C. Symbolic Math and Estimation Math
D. Our Brain一a Born Mathematician
高三英语阅读理解中等难度题查看答案及解析
_____ the secret of nature, the young scientist has little time for entertainment．
A．Devoted to bring up B．Devoted himself to bring up
C．Devoted to bringing up D．Devoting to bring up
高三英语单项填空中等难度题查看答案及解析
______ the secret of nature, the young scientist has little time for entertainment．
A. Devoted to research B. Devoted himself to research
C. Devoted to researching D. Devoting to research
高三英语单项填空中等难度题查看答案及解析
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.
高三英语阅读理解中等难度题查看答案及解析