1 . If you think that running marathons will help you live a long and health y life, new research may come as a shock. According to a recent scientific study, people who do a very strenuous workout are as likely to die as people who do no exercise at all.

Scientists in Denmark have been studying over 1, 000 joggers and non-joggers for 12 years. The death rates from the sample group indicate that people who jog at a moderate pace two or three times a week for less than two and a half hours in total are least likely to die. The best speed to jog at was found to be about 5 miles per hour. The research suggests that people who jog more than three times a week or at higher speeds of over 7 mph die at the same rate as non-joggers. The scientists think that this is because strenuous exercise causes structural changes to the heart and arteries (动脉). Over time, this can cause serious injuries.

Peter Schnohr, a researcher in Copenhagen, said, “If your goal is to decrease the risk of death and improve life expectancy, jogging a few times a week at a moderate pace is a good strategy. Anything more is just unnecessary, and it may be harmful.”

The implications of this are that moderate forms of exercise such as Tai Chi, yoga and brisk walking may be better for us than “iron man” events, triathlons and long-distance running and cycling. According to Jacob Louis Marott, another researcher involved in the study, “You don’t actually have to do that much to have a good impact on your health. And perhaps you shouldn’t actually do too much.”

1. The underlined word “strenuous” in Paragraph 1 is closest in meaning to “ ______”.

A．hard

B．regular

C．practical

D．little

2. The author presents some figures in Paragraph 2 to ______.

A．suggest giving up jogging	B．show risks of doing sports
C．provide supportive evidence	D．introduce the research process

3. Which might be a good form of exercise according to the passage?

A．Jogging for an hour every day.	B．Brisk walking for half an hour every day.
C．Cycling at a high speed.	D．Doing yoga once a month.

4. According to the scientists, why is too much exercise harmful?

A．It may injure the heart and arteries.	B．It can make the body tired out.
C．It will bring much pressure.	D．It consumes too much energy.

3 . What is the relationship between the speakers?

A．Father and daughter.

B．Mother and son.

C．Brother and sister.

4 . Why does the man apologize to the woman?

A．He pressed the wrong button.

B．He dropped her iPad.

C．He broke her purse.

5 . 听下面一段较长对话，回答以下小题。
1. What could the man see out of the window?

A．A street.

B．A parking lot.

C．A garden.

2. What was the man disappointed at about the room?

A．The fridge.

B．The coffee maker.

C．The TV.

7 . How does the man feel about the woman?

A．Bored.

B．Surprised.

C．Annoyed.

9 . During my graduate studies, countless workshops taught me one thing: To make it in science, one must design and carry out big projects. As I established my own research lab, a senior colleague encouraged me to try something big. So when I landed an associate professor position, my goal seemed obvious: I should perform big projects. This was the only way to lay a foundation for a successful academic research career. The path, however, would not be as clear as I had pictured.

When I contacted famous researchers to suggest cooperating, as is typically required for high-profile projects, they frequently replied enthusiastically to start, agreeing my project sounded interesting and promising. But when they learned I had just established my lab, they became skeptical and hesitant, ultimately saying no. And when I sought grant funding, my lack of experience and reputation was cited as a reason to deny support for my ambitious proposals.

I spent about two years being stuck in this mindset, excited about my big ideas but making little actual progress, leading to frustration and depression. As I neared my breaking point, I began to ask myself: were big projects really the only route?

When I shifted to small projects, I became brave enough to step into fields I was not familiar with. By reading papers in new areas, I found creative ideas to pursue. When I discussed these adventurous, low-cost projects with early-career researchers, they were glad to cooperate. We secured funding. When I published papers out of these projects, they were not exciting enough to make headlines — but for me, it was a moment of joy and self-contentment.

It has now been 3 years since I embraced this “small” approach. Sometimes senior colleagues say I’m wasting time with projects that aren’t important enough. But I disagree. When I do these studies, I also find clues for future big projects. Going forward, I will still commit part of my time to exploring small projects, which I think can help pursue more fundamental questions

1. What is the author trying to do with big projects?

A．Establish an academic research center.	B．Pursue his graduate studies.
C．Seek a route to academic success.	D．Apply for an associate professorship.

2. What prevented the author pursuing his big project?

A．The toughness of work.	B．The opposition from colleagues.
C．Lack of necessary support.	D．Shortage of academic talents.

3. How did the author carry out his small project?

A．By publishing influential papers.	B．By getting young colleagues’ funding.
C．By cooperating with senior colleagues.	D．By exploring and initiating new ideas.

4. What does the author learn from his experience?

A．Good jobs require a high degree.	B．Small doesn’t mean unimportant.
C．Success results from preparation.	D．Ambition isn’t fit for the young.