공통영어2 천재 강상구 1과 변형문제

You are on a camping ____ with your family or friends.

After a long day of hiking, you take a quick shower, sit in your favorite camping chair, pick up a soda, and let ____ a deep, contented sigh.

Right at that moment, you hear that annoying and familiar ____ sound.

Beating its wings as fast as 600 times per second, a mosquito ____ in and pierces your skin with its straw-like mouthparts.

____, it fills its belly with blood and then escapes quickly, leaving behind an itchy red bump.

This is a ____ allergic reaction to the mosquito’s saliva.

The more ____ scratch the bump, the more it itches.

Carbon dioxide, which humans and other animals breathe out, is actually a key signal to mosquitoes that a ____ meal is near.

They are highly sensitive to ____ and can detect it from far away.

That’s not the only cue they ____ to find their victims.

When you sweat, you release certain chemicals that ____ them.

Moreover, they ____ easily notice that your body temperature has risen.

Why do they want our ____ in the first place?

It turns out that only females bite us; they need protein to ____ eggs.

If our blood did not contain ____, they would not bother us.

After the mosquito successfully takes a ____ meal of up to three times her own body weight, she quickly lands on the nearest vertical surface.

With the aid of ____, she drains off the water from the blood she took.

Using this ____ blood, she develops her eggs over the next few days.

She then lays roughly 200 ____ eggs on the surface of a small pool of water.

If you had to ____ our greatest predator in nature, which would you pick?

Sharks, lions, or ____?

According to history professor Timothy Winegard, it is actually the ____.

Mosquitoes ____ pass on deadly diseases like malaria and yellow fever.

Over a million people worldwide die of these diseases every ____.

Throughout history, Winegard estimates that mosquitoes have killed more people than any other single cause—about fifty two billion people, ____ half of all humans who have ever lived.

____ claims that mosquitoes also played a role in shaping the history of several countries.

Take the ____ Empire, for example.

The fall of the Western Roman Empire was gradual, ____ over centuries.

Here are commonly cited reasons for the fall of the empire: invasions by outside forces, economic troubles, and ____.

Diseases like malaria, however, also ____.

Rome, the capital of the ____, was once surrounded by a huge stretch of wetland.

This was an ideal breeding ground for mosquitoes and hence a hot ____ for malaria.

On the one hand, mosquitoes helped protect the city against the armies ____ to attack it.

However, they eventually spread the disease not only throughout the city, but also throughout the empire, ____ much of the population.

Here is another reason why Winegard considers the ____ a powerful agent of historical change.

In ____, five ships set sail from Scotland, carrying twelve hundred settlers and valuable trade goods.

They headed for the Darien region of Panama, where Scotland planned to create a trading ____.

After struggling through years of a food crisis, Scotland had ____ this would help raise its economic prospects.

The ambitious plan, however, was brought ____ by the local diseases: yellow fever and malaria.

Virtually no one from Scotland had ____ encountered any of these diseases before.

After six months, nearly ____ of them died, and the survivors returned to their ships and fled.

If their immune systems had been much stronger, they ____ not have lost so many lives in such a short time.

Surprisingly, ____ beings lived with and died of these diseases for thousands of years without understanding how they were spread.

It was not ____ the end of the nineteenth century that we found out that mosquitoes spread malaria.

Before this finding, no one imagined that these tiny ____ insects might be affecting our lives so deeply.

Now we all know that human history is not free from the workings of the natural ____.