A.I. Explanation:

Question Focus: Number and date link - 35 metres is tied to the year 1903

Passage Reference: The Wright brothers in America were the first to truly fly a fixed-wing plane in 1903. Their first flight was only 35 meters

Why this is correct: The answer is between 1900 and 1910 because the speaker clearly says the Wright brothers flew in 1903, and that flight was only 35 meters. 1903 fits exactly into this time period.

Common Mistake: Students sometimes choose after 1910 because they focus on later achievements like longer flights. This is a Context shift trap - the 35 meters refers only to the very first flight.

Paraphrasing: Transcript: 'first flight was only 35 meters' = Statement: 'flew 35 metres'

Tips: When you hear a number, always listen carefully for the year linked to it.

Key Vocabulary:

• only = just
• truly = really

Question Focus: Date recognition - jet plane flight happened much later

Passage Reference: The first flight of a jet-driven plane didn't take place until 1939.

Why this is correct: The answer is after 1910 because the speaker says the first jet plane flight was in 1939. That is clearly well after 1910.

Common Mistake: Some students choose between 1900 and 1910 because scientists understood jet engines earlier. This is a Distractor trap - understanding the idea is not the same as an actual flight.

Paraphrasing: Transcript: 'first flight of a jet-driven plane' = Statement: 'first flight by jet plane'

Tips: Listen for phrases like 'didn't take place until' - they often signal the real answer.

Key Vocabulary:

• jet-driven = powered by jets
• until = not before

Question Focus: Early history event - 18th century

Passage Reference: Later that year, in September 1783, the same men flew a hot air balloon with three passengers, a sheep, a rooster, and a duck.

Why this is correct: The answer is before 1900 because the speaker says this flight happened in 1783. That is more than a hundred years before 1900.

Common Mistake: Students sometimes miss the year and guess a later period. This is a Number trap - the year is said quickly but is essential.

Paraphrasing: Transcript: 'flew a hot air balloon with three passengers' = Statement: 'flew with animal passengers'

Tips: Very early dates almost always mean the first time option in matching questions.

Key Vocabulary:

• passengers = those being carried
• later that year = some months after

Question Focus: Specific duration linked to later date

Passage Reference: It was not until 1924 that a helicopter managed to fly for 14 minutes at a height of 15 meters.

Why this is correct: The answer is after 1910 because the speaker clearly says this happened in 1924. The key detail is the 14 minutes, which links to that year.

Common Mistake: Some students choose between 1900 and 1910 because helicopters are discussed earlier. This is a Sequence trap - the speaker talks about earlier attempts, then gives the successful flight later.

Paraphrasing: Transcript: 'fly for 14 minutes' = Statement: 'flew for 14 minutes'

Tips: Words like 'not until' tell you the real answer comes after earlier information.

Key Vocabulary:

• not until = only after
• managed to = succeeded in

Question Focus: Past perfect reference - 1890s

Passage Reference: Gliders had already been flown successfully in the 1890s

Why this is correct: The answer is before 1900 because the speaker says gliders were flown in the 1890s. That decade is clearly before 1900.

Common Mistake: Students sometimes hear 'early 1900s' nearby and choose a later option. This is a Context shift trap - that later date refers to airships, not gliders.

Paraphrasing: Transcript: 'flown successfully in the 1890s' = Statement: 'were flown successfully'

Tips: Always check which invention the year is connected to.

Key Vocabulary:

• already = before this time
• successfully = without failing

Question Focus: First attempt versus later success

Passage Reference: The first successful manned flight by a helicopter took place in 1907, but only lasted very briefly.

Why this is correct: The answer is between 1900 and 1910 because the speaker says the first manned helicopter flight was in 1907. Even though it was brief, it still counts as the first.

Common Mistake: Many students choose after 1910 because the 14-minute flight sounds more impressive. This is a Partial truth trap - that later flight is longer, but not the first.

Paraphrasing: Transcript: 'first successful manned flight' = Statement: 'first manned helicopter flight'

Tips: First does not mean best or longest - listen carefully to the wording.

Key Vocabulary:

• manned = with a person
• briefly = for a short time

Question Focus: Long-term work ending in the 19th century

Passage Reference: For example, an Englishman, Sir George Cayley, worked on it for more than 50 years until his death in 1857.

Why this is correct: The answer is before 1900 because Cayley worked on flight until 1857, which is well before 1900. The speaker highlights his long effort in the 19th century.

Common Mistake: Some students guess a later period because the problem of flight continued. This is a Context shift trap - the statement is about Cayley specifically.

Paraphrasing: Transcript: 'worked on it for more than 50 years' = Statement: 'tried to solve the mystery of flight'

Tips: When a person is named, match the date only to that person, not the whole topic.

Key Vocabulary:

• devoted = gave a lot of time to
• mystery = something not understood

General Tips:

• In matching features, focus first on dates and time phrases - they are strong clues.
• Questions follow the order of the recording, so use the previous answer to predict what comes next.
• Listen for signpost words like 'first', 'not until', and 'by the' - they often mark answers.
• The speaker may mention earlier ideas before the real event - wait for the final detail.
• Do not guess based on importance - match based on exact time information.