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Giải thích chi tiết đề IELTS Reading History of telegraph in communication

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Questions 27–32 (YES / NO / NOT GIVEN)​

27. In the research of the French scientist, metal lines were used to send messages. → NO​

  • Đoạn 1 nói về Jean-Antoine Nollet:

    “pieces of iron wire connecting them” → dây kim loại chỉ dùng để dẫn điện cho thí nghiệm, không phải để gửi thông điệp.

  • Việc “signaling over long distances” chỉ được đề cập như khả năng trong tương lai, không phải điều ông đã làm.

➡️ Câu khẳng định nói ông dùng dây kim loại để gửi tin → sai.

28. People increasingly hoped to explore ways of long-distance communication in the late eighteenth century. → YES​

  • Đoạn 2:

    “After the introduction of the European semaphore lines in 1792, the world’s desire to further its ability to communicate from a distance only grew.”

  • “1792” = cuối thế kỷ 18

  • “desire … only grew” = ngày càng mong muốn

➡️ Hoàn toàn đồng ý với tác giả.

29. Using Morse Code to send message needed special personnel to first simplify the message. → NO​

  • Đoạn 3:

    “At first, it was imagined that only a few highly skilled encoders would be able to use it but it soon became clear that many people could become proficient in Morse code.”

  • Không có việc phải đơn giản hóa thông điệp trước

  • Và cũng không cần nhân sự đặc biệt về lâu dài

➡️ Câu hỏi bịa thêm thông tin → NO.

30. Morse was a famous inventor before he invented the code. → NOT GIVEN​

  • Bài chỉ nói:

    “Samuel F. B. Morse completed a working version of the electrical recording telegraph”

  • Không nói ông nổi tiếng trước đó hay không

➡️ Không đủ thông tin → NOT GIVEN.

31. Water was significant to early telegraph repeater stations on the continent. → YES​

  • Đoạn về Úc:

    “There had to be telegraph repeater stations every few hundred miles… the staff obviously had to have a supply of water.”

  • “obviously had to have a supply of water” = rất quan trọng

➡️ YES.

32. The Australian Government offered funds for the first overland line across the continent. → NOT GIVEN​

  • Đoạn cuối chỉ nói:

    “This allowed the Australian Government to receive news…”

  • Không hề nói chính phủ tài trợ tiền

➡️ NOT GIVEN.

Questions 33–40 (NO MORE THAN TWO WORDS)​

33. Why did Charles Wheatstone’s telegraph system fail to come into common use in the beginning?​

✅ costly

  • Đoạn 2:

    “the telegraph was still too costly for general purposes.”

34. What material was used for insulating cable across the sea?​

✅ gutta percha / latex

  • Đoạn 4:

    “a rubber-like latex called gutta percha”

35. What was used by British pioneers to increase the weight of the cable in the sea?​

✅ lead pipe

  • Đoạn 4:

    “had to be weighed down with lead pipe.”

36. What would occur in the submarine cable when the voltage was applied?​

✅ impedance

  • Đoạn 5:

    “the cable had an impedance associated with it”

37. Who was a message first sent to across the Atlantic by the Queen?​

✅ James Buchanan

  • Đoạn 5:

    “from Queen Victoria … to the President of the United States, James Buchanan”

38. What animals were used to carry the cable through desert?​

✅ camels

  • Đoạn 6:

    “for the parched interior, camels.”

39. What weather condition delayed construction in north Australia?​

✅ tropical rains

  • Đoạn 6:

    “In the north, tropical rains left the teams flooded.”

40. How long did it take to send a telegraph message from Australia to England in 1872?​

✅ several hours

  • Đoạn cuối:

    “it might take several hours for it to reach its destination”

Đáp án​

Bấm để xem đáp án
  1. NO
  2. YES
  3. NO
  4. NOT GIVEN
  5. YES
  6. NOT GIVEN
  7. costly
  8. latex/gutta percha
  9. lead pipe
  10. impedance
  11. James Buchanan
  12. camels
  13. tropical rains
  14. several hours