10．What can we learn from the passage?

　　　A．90% students in Harvard have their full need met.

　　　B．About 70% of undergraduate students received financial aid.

　　　C．Harvard College is the institute for graduate students.

　　　D．The policies for international students are different for U.S. citizens.

　　　11．To be admitted by Harvard, you need ________.

　　　①high school transcript

　　　②a good application essay

　　　③living permit

　　　④to take the SAT or the ACT

　　　⑤health certificate

　　　⑥good personal qualities

　　　A．①②③ B．④⑤⑥

　　　C．①③⑤ D．②④⑥

　　　Many leading AI researchers think that in a matter of decades, artificial intelligence will be able to do not merely some of our jobs, but all of our jobs, forever transforming life on Earth.

　　　The reason why many reject this as science fiction is that we've traditionally thought of intelligence as something mysterious that can only exist in biological organisms, especially humans. But such an idea is unscientific.

　　　From my point of view as a physicist and AI researcher, intelligence is simply a certain kind of information-processing performed by elementary particles(基本粒子) moving around, and there is no law of physics that says one can't build machines more intelligent than us in all ways. This suggests that we've only seen the tip of the intelligence iceberg and that there is an amazing potential to unlock the full intelligence that is potential in nature and use it to help humanity.

　　　If we get it right, the upside is huge. Since everything we love about civilization is the product of intelligence, amplifying(扩大) our own intelligence with AI has the potential to solve tomorrow's toughest problems. For example, why risk our loved ones dying in traffic accidents that self-driving cars could prevent or dying of cancers that AI might help us find cures for? Why not increase productivity through automation and use AI to accelerate our research and development of affordable sustainable(可持续的) energy?

　　　I'm optimistic that we can develop rapidly with advanced AI as long as we win the race between the growing power of our technology and the knowledge with which we manage it. But this requires giving up our outdated concept of learning from mistakes. That helped us win the race with less powerful technology: We messed up with fire and then invented fire extinguishers, and we messed up with cars and then invented seat belts. However, it's an awful idea for more powerful technologies, such as nuclear weapons or superintelligent AI-where even a single mistake is unacceptable and we need to get things right the first time.

　　　12．How do many people feel about leading AI researchers' predictions?

　　　A．Acceptable B．Curious

　　　C．Doubtful D．Disappointed

　　　13．What does the author think of intelligence?

　　　A．We know little about it. B．It belongs to human beings.

　　　C．It is too difficult to understand. D．We have a good command of it.

　　　14．What does the underlined word "upside" in Paragraph 4 probably mean?

　　　A．Cost. B．Potential.

　　　C．Quantity. D．Advantage.

　　　15．What's important for us in the race between people and technology?

　　　A．Learning from failure. B．Increasing our intelligence.

　　　C．Avoiding making mistakes. D．Making accurate predictions.

二、七选五

　　　Starting a fitness program may be one of the best things you can do for your health. Physical activity can reduce your risk of chronic disease, improve your balance and coordination, help you lose weight,16．. As you begin your fitness program, keep these tips in mind:

　　　Start slowly and build up gradually. Give yourself plenty of time to warm up and cool down with easy walking or gentle stretching.17．As your stamina (耐力) improves, gradually increase the amount of time you exercise. Work your way up to 30 to 60 minutes of exercise most days of the week.

　　　18．You don't have to do all your exercise at one time, so you can weave in activity throughout your day. Shorter but more frequent sessions have benefits to your heart, too. Exercising in 10-minute sessions three times a day may fit into your schedule better than a single 30-minute session.

　　　Be creative. Maybe your workout routine includes various activities, such as walking, bicycling or rowing. But don't stop there.Take a weekend hike with your family or spend an evening ballroom dancing.19．

　　　Listen to your body. If you feel pain,shortness of breath, dizziness or nausea, take a break.20．

A.Break things up if you have to.