©João Zilhão via AP
Vocabulary:
I will read the words, meanings, and sample sentences. Then, repeat after me.
- interbreed /in-ter-BREED/
- contamination /kuhn-tam-uh-NEY-shuhn/
- measure /MEZH-er/
- accuracy /AK-yer-uh-see/
- ancestor /AN-ses-teror/
[verb] – to breed or mate between different species, varieties, or breeds
Some animals can interbreed with others in the wild.
[noun] – the presence of harmful substances or impurities in something, especially food or water
The water was unsafe because of contamination from nearby factories.
[verb] – to determine the size, amount, or degree of something
The measure of the water is important for the recipe.
[noun] – the quality of being correct, precise, or free from mistakes
The scientist checked the accuracy of the measurements.
[noun] – a person from whom one is descended, typically more distant than a grandparent
My ancestors came from Italy many generations ago.
Article reading:
Please read the whole article. Then, I will check your pronunciation and intonation.
An ancient child’s skeleton, discovered 27 years ago in Lagar Velho, a rock shelter in central Portugal, has provided new insights into human history. The nearly complete skeleton was found stained red, suggesting it may have been wrapped in a painted animal skin before burial. When it was first discovered, some features of the child, such as body proportions and the shape of the jawbone, appeared to have Neanderthal characteristics. This discovery led scientists to propose that humans and Neanderthals may have interbred. Advances in genetics have confirmed that humans today still carry Neanderthal DNA. The exact age of the skeleton was difficult to determine at first, due to contamination and the growth of roots through the bones, which hindered traditional carbon dating methods.
Recently, scientists used advanced techniques to successfully date the child’s remains. Researchers were able to measure a protein found in human bones, revealing that the child lived between 27,700 and 28,600 years ago. This new dating method has improved the accuracy of the timeline. According to Bethan Linscott, a study author, dating the skeleton was an important step in uncovering a piece of the child’s history. The research provides valuable information on human evolution and the interaction between humans and Neanderthals. Archaeologist Paul Pettitt highlighted that this study demonstrates how new dating methods are advancing the understanding of our past. João Zilhão, a study author, remarked that studying human origins is essential for remembering the past, just as people remember their ancestors through portraits.
Recently, scientists used advanced techniques to successfully date the child’s remains. Researchers were able to measure a protein found in human bones, revealing that the child lived between 27,700 and 28,600 years ago. This new dating method has improved the accuracy of the timeline. According to Bethan Linscott, a study author, dating the skeleton was an important step in uncovering a piece of the child’s history. The research provides valuable information on human evolution and the interaction between humans and Neanderthals. Archaeologist Paul Pettitt highlighted that this study demonstrates how new dating methods are advancing the understanding of our past. João Zilhão, a study author, remarked that studying human origins is essential for remembering the past, just as people remember their ancestors through portraits.
Discussion Questions:
I will read each question. Then, please answer them.
- Have you ever learned about your ancestors’ history? If so, what did you learn? If not, would you like to know more about your family history? Why or why not?
- Have you ever been curious about how humans and animals have evolved? If so, what interests you most? If not, why do you think it’s important to learn about evolution?
- Do you agree that understanding human evolution can help us understand our place in the world?
- How important do you think it is to preserve historical artifacts, such as ancient skeletons, for future research?
- If contamination can affect scientific research, what other ways can we ensure accuracy in experiments?
Summarization
Please summarize the whole article using your own words and expressions. You will have one minute to prepare before you answer.
Describe:
Please explain the definition of each word listed below based on your understanding. You can provide example sentences if needed.
- provide
- burial
- determine
- protein
- portrait