[单项选择]Most scientists agree this outpouring contributes to global warming, which could eventually lead to coastal flooding, ______ weather, and widespread crop loss.
A. intensive
B. extreme
C. unpleased
D. unique

[单项选择]To most scientists, sciences never generate arts directly out of themselves.
A. give clue to
B. pave the way for
C. let out
D. give birth to

[单项选择]

One of the most famous scientists to study adaptations (适应能力) was Charles Darwin (达尔文). He was born in England in 1809. He wasn’t the best student in his school, but when he was 16, his father sent him to a medical school. Charles liked spending time outdoors observing (观察) nature more than attending medical classes. He dropped out without graduating.
Next, Charles’ father sent him to school to become a minister (牧师). This time he made it to graduation. But he didn’t want to do the work of a minister. His friends encouraged him to follow his interest in science.
After graduation, Charles was invited to sail on the Beagle as an unpaid scientist. He wasn’t the first choice, but he was the lucky one to go. The Beagle was to travel to South America and then around the world. The crew’s task was to make maps of the places they visited.
On December 27th, 1831, Charles Darwin sailed from England on the Beagle. The trip was planned to
A. attending medical classes
B. the work of a minister
C. sailing around the world
D. science

[单项选择]All specialists agree that the most important consideration with diet drugs is carefully ______ the risks and benefits.
A. valuing
B. evaluating
C. estimating
D. weighing

[单项选择]

Most musicians agree that the best violins were made in Cremona, Italy, about 200 years ago. These violins sound better than any others. They even sound (21) violins made today. Violin makers and scientists try to make (22) like the old Italian violins. (23) they aren’t the same, Musicians prefer the old ones. No one really knows (24) these old Italian violins are so special, (25) many people think they have an answer.
Some people think it is the age of the violins. But not all old violins sound wonderful. Only the old violins from Cremona are (26) .
Other people think that the (27) to those violins is the wood. The wood of the violin is very important. It must be from certain kinds of trees. It (28) too young or too old. Perhaps the violin makers of Cremona knew (29) special about wood for violins.
But the kind of wood may not be (30) important. (31) may be more important t
A. Yet
B. Hence
C. Thus
D. Besides

[单项选择]What is happiness Most researchers agree that it involves an assessment of the good and bad in our lives. It"s the emotional balance sheet we keep that allows us to say honestly whether we"re living a happy life, in spite of bad things now and then.. Marriage has taken a lot of hits since the 1960s. It"s been said to hold many people, especially women, back from their full potential to be happy. Don"t believe it. In 2004, 42 percent of married Americans said they were very happy. Just 23 percent of never-married people said this. The happiness numbers were even lower for other groups: Only 20 percent of those who were widowed(死了丈夫或妻子的), 17 percent of those who were divorced, and 11 percent of those who were separated but not divorced said they were happy. Overall, married people were six times more likely to say that they were very happy than to report that they were not too happy. And generally speaking, married women say they"re happy more often than married men. Marriage isn"t just associated with happiness -- it brings happiness, at least for a lot of us. One 2003 study that followed 24,000 people for more than a decade documented a significant increase in happiness after people married. For some, the happiness increase wore off in a few years, and they ended up back at their premarriage happiness levels. But for others, it lasted as long as a lifetime.Among the people investigated in 2004, those who were seemed to be least happy were______.
A. separated but not divorced
B. never-married
C. widowed
D. married and divorced

[单项选择]

Most scholars agree that Isaac Newton, while formulating the laws of force and gravity and inventing the calculus in the late 1600s, probably knew all the science there was to know at the time. In the ensuing 350 years an estimated 50 million research papers and innumerable books have been published in the natural sciences and mathematics. The modern high school student probably now possesses more scientific knowledge than Newton did, yet science to many people seems to be an impenetrable mountain of facts.
One way scientists have tried to cope with this mountain is by becoming more and more specialized. Another strategy for coping with the mountain of information is to largely ignore it. That shouldn’t come as a surprise. Sure, you have to know a lot to he a scientist, but knowing a lot is not what makes a scientist. What makes a scientist is ignorance. This may sound ridiculous, but for scientists the facts are just a starting place. In science, every new discover
A. Because people like solving puzzles
B. Because questions make science accessible
C. Because there are more questions than answers
D. Because questions point the way to deep answers