©Ethan Tweedie/W. M. Keck Observatory via AP
Pre-reading Questions:
I will read each question. Then, please answer them.
講師がそれぞれの質問を読むので答えましょう。
- Have you ever looked at the stars at night?
- Do you think stars are mysterious?
Vocabulary:
I will read the words, meanings, and sample sentences. Then, repeat after me.
単語、意味、例文を読みます。講師に続いて音読しましょう。
- surface /SUR-fis/
[noun] – the outside or top layer of something
The surface of the lake was calm and clear. - explanation /ek-spluh-NEY-shuhn/
[noun] – the details or reasons given to make something clear
The guide gave an easy explanation of the map. - discovery /dih-SKUHV-uh-ree/
[noun] – the act of finding something for the first time
The discovery of old coins made the children happy. - appear /uh-PEER/
[verb] – to come into view
Stars appear in the sky at night. - complex /kuhm-PLEKS/
[adjective] – having many parts that are not simple
The puzzle was too complex for the child.
Article Reading:
Please read the whole article. Then, I will check your pronunciation and intonation.
記事を音読しましょう。講師はあなたの発音とイントネーションを確認します。
In 2021, astronomers observed a massive star in the Milky Way during an unusual explosion called supernova 2021yfj. The study explained that the star had already lost its hydrogen and helium layers before the collapse. Even the silicon and sulfur parts were removed, giving scientists a chance to see deep inside. The lighter elements stayed at the surface while the heavier ones were found near the center. The research, published in Nature, was described as an epochal moment because it gave credible proof of long-held theories about how stars are built. Experts said the results offered an insightful and established explanation of stellar life cycles, making the discovery notable for the study of space.
The finding also raised new questions. Some specialists believed that the star lost its layers because of strong activity in its last stage, while others thought a twin star pulled them away. The research gave a lucid confirmation of old models but also showed conundrums that remain unresolved. Astronomers warned that such a clear view may not appear again soon, since these explosions are rare. Still, the study is expected to play a significant role in explaining how exploding stars spread elements that form planets and life. Many experts described the work as a remarkable and substantial step in understanding the complex history of stars and their evolution.
The finding also raised new questions. Some specialists believed that the star lost its layers because of strong activity in its last stage, while others thought a twin star pulled them away. The research gave a lucid confirmation of old models but also showed conundrums that remain unresolved. Astronomers warned that such a clear view may not appear again soon, since these explosions are rare. Still, the study is expected to play a significant role in explaining how exploding stars spread elements that form planets and life. Many experts described the work as a remarkable and substantial step in understanding the complex history of stars and their evolution.
True or False:
Read the sentences and identify if they are true or false based on the article.
文章を読んで、記事に基づいて正誤を答えましょう。
- Astronomers observed a massive star in the Milky Way in 2021.
- The star still had hydrogen and helium layers during the explosion.
- Heavy elements stayed on the surface while lighter ones sank to the center.
- The study was published in Nature and described as important.
- All experts agreed that the star lost its layers because of a twin star.
Fill in the Blanks:
Choose the correct word from the table, then fill in the blanks.
適切な言葉を選んで空欄を埋めましょう。
| surface | explanation | discovery | appear | complex |
- The food did not ______ fresh in the store.
- She gave a quick ______ of the rules.
- The teacher wiped the desk ______ with a cloth.
- The scientist shared her ______ of a new bird.
- The teacher used simple words for the ______ idea.