영어1 천재 강상구 4과 본문 빈칸

Hello, listeners. Did you know there are times at night when a massive migration happens right ____ your heads?

The scale of migration involving billions of birds traveling up to thousands of kilometers ____ you in awe.

On today’s Jo’s Tea Time , we invite naturalist and ____ Scott Weidensaul to share his knowledge.

He’s spent decades ____ migratory birds, writing about them, and engaging in conservation efforts.

Welcome to the show, Mr. ____

Thanks for having me, ____

Your new book says every spring and fall, hundreds of millions to billions of migratory birds pass over our roofs, but we seem to have no idea that it’s happening. Why ____ that?

Well, most birds migrate after dark, including almost all of the birds that ____ normally active during the day.

That’s why it’s ____ for us to realize the migration is happening.

____ migrate at night because the night sky is cooler, and the air calmer.

Besides, there are ____ predators at night.

If you could strip away the night sky and make everything visible, this migration would ____ be the largest, greatest natural spectacle on the planet.

Among ____ global travelers in your book, I found the bartailed godwits to be particularly impressive.

Sure. Some of them can even make a ____ km nonstop journey across the Pacific Ocean, from western Alaska to New Zealand in 11 days.

How do they travel ____ a long distance over a nearly featureless ocean?

To find their routes, the bar-tailed godwits probably rely on the sun ____ stars among other things.

Some experts ____ that they may be able to sense the earth’s magnetic field lines, too.

You may ____ wonder how, if ever, they sleep while flying over a vast ocean.

____ turns out that migratory birds use an approach called “half-brain sleep.”

This ____ how it works.

Only the left half of the brain sleeps for a couple of seconds, then only the right half for the next couple of ____ and then this process repeats over and over again.

____ it amazing?

Actually, some sea mammals like dolphins can ____ that, too, because they have to keep breathing consciously.

____ wouldn’t like to have such an ability?

Birds in migratory condition can ____ things that they can’t do at other times of the year.

Another neat trick you might envy is that they can gain a tremendous amount of muscle tissue ____ exercise.

____ example, before some bar-tailed godwits leave Alaska in September and make a 10,000 km flight across the Pacific, they undergo a process of binge feeding.

They just eat and eat until they double ____ weight.

____ the time they take off, their heart and flight muscles may have increased by 50%.

After they have eaten as much as they possibly can and can’t ____ any more weight on, their digestive organs shrink dramatically because these won’t be put to use during the non-stop flight to New Zealand.

____ what happens after they arrive there?

They regrow their ____ organs and spend the summer feeding again, and they undergo the same journey back to Alaska.

They do this ____ and again for 25 to 30 years, flying up to 30,000 km every year.

By ____ time bar-tailed godwits die, they have flown close to twice the distance from Earth to the moon.

That’s ____ impressive. By the way, I hear you’ve visited Korea several times before.

Why do you come here so ____

As a bird watcher and conservationist, ____ find the Yellow Sea mudflats between Korea and China very special.

They are some of the largest tidal mudflats on the earth and provide a critical stopover point for the countless ____ birds on the East Asian-Australasian Flyway.

While these enormous stretches of tidal mud look featureless to ____ human eye, they have plenty of marine life forms.

So the mudflats are drawing all kinds of birds in ____ as far away as New Zealand, Australia, and Asia?

Yes. Many of these birds fly ____ thousand kilometers to get to the Yellow Sea.

Here, they have to double their weight in less than two ____ and make another flight of several thousand kilometers up north.

That’s why the Yellow Sea is ____ critically important.

It’s one of the ____ places in the world where migratory birds can get the resources they need on their difficult journey.

Oh, I had no idea that the Yellow Sea ____ such importance.

What ____ you think we can do to preserve this precious gathering place for migratory birds?

Well, you can start by raising awareness of its importance among ____ around you.

Or, if you want to be more actively involved, you can participate in cleaning up beaches or monitoring wildlife ____

On a bigger scale, because migratory birds travel through many countries, international cooperation is a must for ____ protection.

Actually, I’m working with an international organization consisting of the countries along the ____ Asian-Australasian Flyway.

As a result of our international collaboration, we ____ to successfully bring back the endangered blackfaced spoonbills.

Fascinating! ____ Weidensaul, today you let us see migratory birds and the Yellow Sea in a whole new way. Thank you!