"We must learn not to take traditional morals （道德）too seriously." So said the biologist J. B. S. Haldane in a 1923 talk on science and the future. Haldane forecasted that scientific progress would destroy every belief and value. The future would be bright only "if mankind can adjust its morality to its powers". Haldane had a point: our powers have led to challenges that have never existed before. Climate change is a threat unlike any we have ever seen. Our machines might become smarter than us. Genetic engineering（基因工程）could change humanity forever.
In the face of such challenges, our evolved moral sense often proves not enough. Part of the problem is scale （规模）.The anthropologist Robin Dunbar says we can keep no more than about 150 meaningful relationships at once. But today, all 7 billion of us are connected—if not in meaningful relationships, not in meaningless ones, either. “Society" is now too big a concept for our brains to analyze.
One result is conflicting demands that are hard to solve. The bad situation of our fellow humans makes us use every possible way to deal with climate change. But that could hurt our own way of life. And then there's the urge to just forget all that pressure and get on a plane to somewhere sunny. Given this cognitive（认知的）overload, our original emotional responses tend to win out. We do what feels right. But such responses don't necessarily produce the best results. So how can we make sure we do what really is right?
It's a hard nut, but never fear: moral philosophers are on the case. Some, such as those based at the Centre for Effective Altruism in Oxford, UK, aim to maximize the good we can do by quantifying the results of our actions. Many of their suggestions have raised eyebrows: that it may be better to become a generous banker than work for a charity, for example.
Others suggest modifying our moral brains directly, through drugs. The difficulties with this idea are obvious: who decides what makes improvement? Given the practical difficulties of large-scale morality hacking （入侵），we should perhaps stick to education. We are not simply prisoners of our emotions: we can reason our way to workable solutions. Science alone will not get us there. So no, we shouldn't take traditional morality too seriously where it fails to address modem problems.
1.J. B. S. Haldane forecasted that scientific development would ______.
A.lead to the corruption of public morals
B.present a challenge to traditional morals
C.bring disasters and fears to human beings
D.affect human beings powers of adjustment
2.We can learn from Paragraph 2 that ______.
A.collective wisdom is a good solution to modem challenges
B.Robin Dunbar thinks it is hard to build up meaningful relationships
C.our evolved moral sense is too limited to solve the problems of modem society
D.the large scale of social connections makes our relationships less meaningful
3.What is implied in the last paragraph?
A.Most people put the blame for modem problems on science.
B.Science can help with the modification of our moral brains.
C.The combination of reason and humanity can make more effective morality.
D.Human beings have a long way to go before they can overcome modem problems."
Beneath the joy of music lies the often mysterious field of music theory. But what if you could learn to understand the often intimidating （使人望而生畏的）language of key signatures, pitch （音高），mode （音乐的调式）,melody and more? What if you could recognize these components at work while listening to your favorite music? What if you could "speak" the language of music?
In Understanding the Fundamentals of Music, award winning composer and professor Greenberg offers you a spirited introduction to this magnificent language, avoiding what for many of us has long been the principal roadblock: the need to read music. With these 16 fascinating lectures, discover what parts of musical speech sound like, rather than what they look like on paper. You'll quickly find yourself listening to music with new levels of understanding and appreciation whether at a concert, at home or in your car.
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1.Anyone ordering a CD of Understanding the Fundamentals of Music will .
A.obtain a paper version for free
B.be offered the highest discount
C.be required to pay for transportation costs
D.get other musicians instruction besides Robert Greenberg's .
2.What's special about The Great Courses?
A.Its academic tests are optional.
B.It focuses on readers' speaking skills.
C.It is recommended by many a musician.
D.It is readily accessible to its subscribers.
Since the age of three, Hill had dreamed of becoming a dancer. "The only thing that I loved was dance," she told CBS News. That ambition nearly _______ in 2010. Hill, then a 17-year-old student in a small town, was in an accident that left her paralyzed from the _______ down. For most people, that would have _______ any hope of a dancing career. For Hill, it was the beginning. _______ being an obstacle, her wheelchair empowered her. "I wanted to _______ to my myself I was still 'normal'."
Hill danced in her wheelchair alongside her school dance team. "Half of my body was _______ from me," Hill told Today. "and it definitely took a lot of learning and _______ After graduation, Hill wanted to _______ her dance network to include women who had _______ various spinal cord injuries but shared her ________. "It was such an amazing experience?”
Hoping to reach more people in a ________ city, Hill moved to Los Angeles in 2014 and formed the Rollettes. "I want to ________ the stereotype （模式化观念）of wheelchair users.", Dancing on wheels can be just as artful as the foot-based ________ . In dance competitions, they rocked their bodies to ________, and struck poses in dynamic routines. They're having fun, and as the audiences' reactions ________ , the fun is infectious. Hill has ________ what many of us never will: her childhood dream. ________ the Rollettes have helped her find something else just as ________. Every year she holds a dance camp for wheelchair users to help them find their ________ strength they've never seen before. In 2019, 173 participants who used to be restricted lonely attended her camp. For many, it was the first time they'd felt they ________.
1.A.initiated B.ended C.withdrew D.postponed
2.A.head B.knee C.waist D.ankle
3.A.dashed B.quit C.lost D.abandoned
4.A.Regardless of B.Far from C.Out of D.Apart from
5.A.justify B.convince C.confirm D.prove
6.A.taken away B.cleared away C.worn away D.turned away
7.A.patience B.competence C.intelligence D.independence
8.A.accumulate B.attract C.boycott D.expand
9.A.multiplied B.submitted C.suffered D.possessed
10.A.virtue B.determination C.dimension D.identity
11.A.riper B.remoter C.larger D.busier
12.A.break off B.break up C.break in D.break down
13.A.practice B.variety C.performance D.access
14.A.music B.beats C.instructions D.directions
15.A.indicate B.express C.illustrate D.conclude
16.A.comprehended B.compensated C.adored D.attained
17.A.But B.Instead C.So D.Still
18.A.superior B.premier C.normal D.meaningful
19.A.main B.inner C.unique D.physical
20.A.scared B.matured C.belonged D.sustained
—I will hang out with friends this afternoon. May I do the homework tomorrow?
—______ You have to finish it today.
A.What of it? B.You don't say
C.What's up D.Not on your life!
—I just feel ______! How could I have made such a stupid mistake in yesterday's competition?
— Hi, come on― cheer up! It's not that bad.
A.off the top of my head B.down in the dumps
C.hot under the collar D.on cloud nine
______ the opening ceremony of the first China International Import Expo in Shanghai was President Xi, where he announced new measures to further expand opening-up,
A.Attending B.Attended C.To attend D.Having attended
