1 . Have you ever been in a bathroom, dressing room or another private area with a mirror and had that feeling that someone is watching you? You can check to see if a mirror is transparent by observing how it is installed and using a few simple techniques to determine if there’s a wall behind it.     1    

Check out the lighting. For a two-way mirror to be effective, the light on the mirrored side needs to be 10 times brighter than the light on the other side. If the lighting is dimmer, it’s possible to see through the glass to the observation area. Look around and determine whether the lighting seems extraordinarily bright.     2    

    3    Press your face up to the mirror and cup your hands around it, creating a dark tunnel to block out as much light as possible. When you do this, if the light in the observation room is at all brighter than the light on your side of the mirror, you should be able to see something through the glass.

Sound it out. The sound of tapping a two-way mirror has also been described as bright or sharp as opposed to a thud (砰的一声) from an everyday mirror. Tap on the surface of the mirror with your knuckle (指节).     4    An observation mirror will produce an open, hollow and echoing sound because there is an open space on the other side.

    5    Then hold a flashlight to the mirror (it can be the “flashlight” on your smartphone). If it is a two-way mirror, the room on the other side will be illuminated and you’ll be able to see it.

2 . Here is a story about a young boy in New York. He once went to one of Dr. Jane Goodall’s talks and learned about the _______ expressions of chimpanzees.

When he saw a picture of a chimpanzee on a box of _______and it looked like the chimpanzee was grinning (咧嘴笑), the boy _______ from what he’d learned at Dr. Goodall’s talk that the chimpanzee’s look was actually one of _______.

The boy _______ to the cookie-maker asking to take the chimpanzee’s picture off the box. _______ receiving a letter back from the company, he saw the picture of the chimpanzee _______from the box within just a few months.

“I took _______,” the boy now says. “And the company changed.”   _______ it happened that the picture changed, the boy and his family   ________it was his doing.

As the story shows, young students have much more ________ to accomplish change than what   ________may believe. Moreover, students often achieve much more than they ever   ________ they will.

The story also ________us that small actions can have a big impact. We often tend to think about   ________ events like Clean and Green Week. Instead, a lot of small changes can make a(an)   ________. If hundreds or thousands of students   ________ their families to turn off the tap to save water, move the air-conditioning temperature up a degree or two, drive less and make other environmentally friendly changes, the ________ family may change its behaviors.       

With these small yet highly   ________ changes, students have an effect beyond just their own actions. Students can   ________ by realizing that their own actions have more power than they may expect, and environmentalists can benefit as well by taking the time to focus on even the youngest students.

3 . The early bird catches the worm, right?

There was a time in my life when it seemed I couldn’t advance at work. I had this coworker who was always one step ahead of me.     1     But for some reason, my normally strict boss seemed to love him.

Then one morning I headed into work half an hour early so I could also leave early to catch my flight for a weekend vacation. When I got there, my coworker and boss were chatting over coffee. I joined in and realized they had been having these morning chats for months!

    2     By missing out on these small morning coffee chats, I was missing out on building an important connection for my career. So it’s important that we look at how the time that we arrive at our events is affecting our lives.

Often, we rank things based on how we understand the importance of our punctuality for that event. How early would you show up to something like a doctor’s appointment? Do you get there right on time, or 15 or more minutes earlier?

Think about your job. If it’s more casual and relaxed, do you always show up on time?     3     Did you ever find yourself getting in trouble at work for being late?

Now think about personal events. If you went to a friend’s birthday party or their dinner, would you show up on time? Consider how you show up for even more casual hangouts, like, checking in with your parents.

    4    

When we show up early, we give ourselves the chance to reduce stress about missing out or making anybody else upset.     5    

5 . We all have memories of what our fathers enjoyed, and all the fun we had with him: travelling, reading, or exploring the neighborhood hiking trail. Each of us has treasured stories and memories of times with dad.    1    

The charm of storytelling,the fun of traveling, the immersion in a book...these are the gifts of a lifetime my father helped me unwrap.    2    All the stories he narrated to engage us and all the travels we took with him opened up a whole new world to me which was like a breath of fresh air in my life.

My father, turning 75 this year, is still a storyteller, but his exploration of the world has turned virtual. Like almost all children, I spent my twenties walking away from his stories since I was always “occupied with my work.”    3     August all expectations, I hear the unsaid health concerns and the frustration at no being able to do everything the way he used to. In contrast, I have travelled farther than he could take us, and read books much more than he ever had time outside his working hours.

    4    That lies in the things he points at and in the activities he helps us manage. He gifts us expediences of strength and courage that power us forward into the big wide world — a world he walks with us so as to better assure that we will be able to explore and navigate its nettles (荨麻) without being held back by our fears or worries.

Have you ever put your ear to a seashell and heard the waves whooshing in there? On the outside, it is a hard shell — pitted, untidily edged and boldly patterned.    5    They seem to have a tough shell, and you have to put them to your heart and listen for the waves of what they feel and whatever it is that they have left unsaid.

7 . Banff National Park is home to an amazing wildlife population. But the busy Trans Canada Highway that cuts through the park is a hazard to the lovely animals. To address the problem, Banff first put-up wildlife fencing on either side of the highway to discourage animals from entering the busy road. Then, since 1996, they’ve opened six wildlife overpasses and 38 underpasses to help the animals cross the highway in safety. I was fortunate to visit Banff’s Red Earth Overpass with Trevor Kinley, the project manager with Parks Canada. He told me that so far, they have documented 10, 000 safe animal crossings on this overpass alone. “ Some animals have learned how to use the crossings much more quickly than others. Black bears are the fastest learners, followed by deer. Wolves and lions take the longest to work out how to use them, ” Kinley said, laughing. “ But those animals that are slower to adapt are usually more capable and determined at figuring out the safest way to cross those overpasses and underpasses. ”

There is some criticism (批评) that channeling so much wildlife into a few bridges and tunnels is like making a trap for the animals, offering big animals an easy meal on either side. “ But research has shown that this is not the case, ” Kinley assured me. “ There are no more killings around the crossings than there are anywhere else in the park. ”

Walking over the Trans Canada and then walking underneath through one of the tunnels, I was amazed to see the fresh tracks of black bears, wolves, deer and many kinds of smaller animals. Somehow, all these animal footprints made me so happy, knowing that all this wildlife was passing safely under and over the longest road in Canada.

Hopefully, the success of the wildlife crossings in Banff will continue to inspire similar solutions around the world, where human pressure on wildlife continues to grow.