Listening - Ask History: Who Really Invented the Light Bulb?

Watch the video below then complete the activities.

VOCABULARY

celebrated: (0:05) very famous or admired.

The singer is celebrated for her beautiful voice.

deserve credit: (0:08) to have earned praise or recognition for something.

She worked hard, so she deserves credit for the good results.

complicated: (0:12) difficult to understand or deal with.

This math problem is very complicated.

granted the patent: (0:17) officially given the exclusive right to make, use, or sell an invention.

The inventor was granted the patent for his new machine last week.

claimed: (0:21) said that something is true or that you have a right to something.

She claimed that she saw a ghost in the old house.

heated: (0:28) made warm or hot.

The sun heated the water in the pool.

unfortunately: (0:31) used to say that something bad or unlucky has happened.

Unfortunately, it rained, so we couldn't go to the park.

viable: (0:36) able to work successfully; practical.

The business plan is viable; it can make money.

burned out: (0:39) stopped working because of damage or overuse.

The old light bulb burned out, so we need a new one.

affordable: (1:02) cheap enough for most people to buy.

These clothes are very affordable.

breakthrough: (1:05) an important discovery or development.

Scientists made a breakthrough in cancer research.

realized: (1:08) understood or became aware of a fact or situation.

He realized he had forgotten his keys after he left home.

practical: (1:13) useful and sensible.

It's a very practical car for a family.

settled on: (1:16) made a decision about something after considering other options.

After looking at many houses, they settled on the one with the big garden.

last: (1:23) to continue for a particular period of time.

The movie lasts for two hours.

applied for: (1:31) made a formal request for something (like a job or a patent).

She applied for a new job last week.

ended when: (1:34) finished at a specific point or because of a specific event.

The game ended when the timer went off.

formed a joint company: (1:36) created a business together.

The two friends formed a joint company to sell their products.

contributed to: (1:41) gave something (like help or ideas) to help make something happen.

Everyone contributed to the success of the project.

succeeded in: (1:44) achieved something that you planned or attempted.

She succeeded in learning to play the guitar.

commercial success: (1:47) something that makes a lot of money or sells well.

The new phone was a huge commercial success.

symbols: (1:51) things that represent something else.

A dove is a symbol of peace.

ACTIVITIES

1 - Choose the best answer for each question.

2 - True or False?

3 - Complete the sentences.