공통영어1 천재 조수경 3과 변형문제

There ____ a Korean man who became the chief of a Nigerian tribe for making huge contributions to Nigeria’s agriculture and economy. Here is his story.

Dr. ____ is an agriculturist who specialized in plant breeding.

Growing up right after the Korean war, he knew what it was like to be hungry, and he wanted to ____ people in need.

In 1971, he was given two opportunities: work for Cambridge University or ____ the International Institute of Tropical Agriculture in Nigeria.

On his way to Cambridge for a job ____ he first stopped in Nigeria.

There, he saw the country ____ been destroyed by a civil war.

More than 2 million people had died, and ____ than half a million people were starving.

Dr. Hahn ____ to rescue Nigerians from hunger.

So, he ____ his family and moved to Nigeria.

____ Dr. Hahn got there, he learned that the staple food in Nigeria was a plant called cassava.

Unfortunately, cassava was defenseless against viral and bacterial diseases, so it did not yield ____ crop.

Knowing this, he decided ____ develop stronger cassava varieties with higher yields.

However, Dr. Hahn faced ____ problem: there was not much information available about cassava.

Cassava was rarely studied or developed because it ____ not a cash crop.

To make matters worse, he ____ never seen or eaten cassava before.

While studying African cassava, Dr. Hahn found out that the ____ who colonized Brazil had first brought cassava into Africa.

He immediately flew to Brazil to study the original ____

There, he learned about it and went back to Nigeria with ____ cassava seeds.

Then, Dr. Hahn traveled ____ every corner of Nigeria and collected different types of local cassava to see if they were good at fighting diseases, but they weren’t.

Fortunately, he ____ a plant that was similar to cassava but resistant to diseases.

He started crossing ____ plant with the Brazilian cassava.

After five years of ____ work, Dr. Hahn finally succeeded in developing new varieties of cassava.

They yielded much more than the local ones ____ could survive diseases.

Another obstacle ____ Hahn faced was distributing the new varieties.

Local farmers would not listen to a ____

To overcome ____ problem, Dr. Hahn visited markets, churches, and schools and gave out the new varieties to Nigerian people for free.

He went from one house to the next ____ let farmers know the superiority of these new varieties.

Sometimes he planted them in the middle of the cassava field without ____ the farmers.

His colleagues were concerned that the farmers ____ be angry to find different cassava in their fields.

However, Dr. Hahn insisted that the farmers ____ think that it was a gift from God.

He was right. The ____ soon realized the superiority of the new varieties, and more and more farmers started to cultivate them.

Thanks to the new cassava, fewer ____ were starving.

In fact, they could even ____ more money by selling the remaining cassava.

Eventually, Nigeria became the country that produced the greatest ____ of cassava in the world.

In 1983, the Yoruba, a major tribe of Nigeria, honored Dr. Hahn as a chief with the title “Seriki Agbe” or “the ____ of Farmers.”

In addition to ____ Dr. Hahn developed other major foods, including yam, sweet potato, and banana.

Soon, ____ African countries asked for his help.

____ Hahn traveled to these countries to teach local farmers and scholars how to grow these new varieties.

He spent 23 years developing and distributing the new cassava varieties ____ the whole continent.

Although he left Nigeria in 1994, he is still remembered as one of the greatest scientists who fought against ____ in Africa.

Dr. Hahn once said, “If you have faith ____ what you do will benefit humanity, I believe that you must sacrifice yourself.

Even if I were to go back to the past, I would still ____ the same thing.”