Some equipment as well as a number of maps and books _____to Zhouqu since the mud-rock flow occurred.
A. has been offered B. have been offered
C. are offered D. is being offered
高二英语单项填空简单题
Some equipment as well as a number of maps and books _____to Zhouqu since the mud-rock flow occurred.
A. has been offered B. have been offered
C. are offered D. is being offered
高二英语单项填空简单题查看答案及解析
It took ______ people as well as ______ time to build the pyramid.
A．a large number of; a great many B．a great many; a large amount of
C．a great many of; large amounts of D．a large amount of; a great deal of
高二英语单项填空困难题查看答案及解析
The majority of the office equipment, as well as two windows, ________ repaired yesterday.
A.were B.was C.are D.is
高二英语单项填空简单题查看答案及解析
Most of these groups _______ teachers and graduate students, but some freshmen join as well.
A. make up B. is made up
C. consist of D. is consist of
高二英语单项填空中等难度题查看答案及解析
A well-written composition _________ some writing skills, such as good choice of words and clear organizations.
A. calls on B. calls for C. calls up D. calls in
高二英语单项填空中等难度题查看答案及解析
So far, some advanced teaching equipment, together with three hundred new books, ______ to those schools in the faraway area.
A. has been sent B. have been sent
C. was sent D. were sent
高二英语单项填空中等难度题查看答案及解析
________ book of this writer is East and West.
A. Known to be the best B. Known as the best
C. As the best known D. It was the best known
高二英语单项填空困难题查看答案及解析
______ the books, he realized they were far from enough and told some of us to share.
A. Having counted B. Counts
C. To have counted D. Counted
高二英语单项填空中等难度题查看答案及解析
As we age, our ability to think and remember starts to deteriorate. But not everyone. Some of us have brains that age more slowly. Enter the super-ager!
Super-agers are people over the age of 80 who have the brain structures and abilities of much younger people. Eighty-seven-year-old Bill Gurolnick is a super-ager. “What do I feel like? If I was to give a number, I probably feel like I’m about my early 70s…”
Scientists know that parts of the brain decrease in size with age. But in super-agers that process is much slower. Emily Rogalski is a neuroscientist at Northwestern University’s Feinberg School of Medicine, in Chicago, Illinois. In a recent study, she showed that super-agers have young brains. The area of the brain responsible for attention and memory—the cortex—was shown to be thicker in super-agers. “When we look at the cortex of their brain, we see that, on average, that it looks more like a 50-year-old brain that it looks like an average 80-year-old bran…”
Not only do super-ages have thicker cortexes, they have more spindle neurons. These large brain cells appear to be involved with social-emotional communication. But their exact purpose is still a mystery. Scientists writing for Smithsonian magazine say they are “brain cells for socializing.”
Several factors affect how our brains age. Scientists say super-agers have several things in common, including an active lifestyle. Many travel and play sports. They are often big readers. And they usually have healthy relationships and spend time with friends. Super-agers also seem to have certain common personality traits. Rogalski says they are, for the most part, known for their optimism, resilience and perseverance. Growing old, she adds, does not have to be depressing and sad. “Perhaps, if we expected a bit better from ourselves, then we would understand that not all aging is stressful!”
Can we all be super-agers? The science behind super-aging is a relatively new, but growing field. Scientists involved in the research offer this advice as we age: Stay active. Learn new things. Challenge yourself. Surround yourself with healthy relationships.
1.What does underlined word “deteriorate” mean?
A. Become better as time passes. B. Speed up with time.
C. Improve whatever happens. D. Become worse as time passes.
2.What is the function of the cortex?
A. Be responsible for social-emotional communication.
B. Take care of attention and memory.
C. Keep track of numbers and charts.
D. Care for healthy relationships.
3.Super-agers have the tendency to ________.
A. stay at home with friends all day long
B. learn new things but seldom read books
C. be optimistic and like playing sports
D. travel a lot alone
4.The best title of the passage may be ________.
A. A New Scientific Study B. Can We All Be Super-agers?
C. How People Get Old D. Being Young Forever
高二英语阅读理解困难题查看答案及解析
Classrooms in some schools are equipped with seats that can be _____ to the height of a person.
A. grown B. adjusted
C. folded D. expanded
高二英语单项填空中等难度题查看答案及解析