Nanotechnology - IELTS Listening with Practice test, Audio, Transcript, And Explanation

Luyện tập đề IELTS Listening Practice với bài Nanotechnology được lấy từ cuốn sách IELTS CAM Inspired 10 - Test 4 - Section 4 với trải nghiệm thi IELTS trên máy và giải thích đáp án chi tiết bằng Linearthinking.

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Nanotechnology - IELTS Listening with Practice test, Audio, Transcript, And Explanation

👂️ Audio and questions

According to the speaker, one problem associated with nanotechnology is that

it may threaten our way of life.

it might be used to monitor people.

the public misinterprets it.

According to the speaker, some scientists believe nanoparticles

should be confined to secure environments.

should be handled more carefully.

should be developed only for essential products.

In the speaker’s view, nanotechnology research

has not gained public support.

may be regarded as unethical.

should carry on.

Uses of Nanotechnology

Transport
Nanotechnology could enable stronger 4.
            
﻿
 to be developed.
Aircraft would be far lighter.
5.
            
﻿
 travel would become available to the public.
Technology
Computers would become smaller and faster and possess greater 6.
            
﻿
.
7.
            
﻿
 energy would cost less.
The environment
Nanorobots could reconstruct the ozone layer.
Pollutants such as 8.
            
﻿
 could be filtered out of water.
Manufacturing would generate no 9.
            
﻿
.
Health and medicine
New food-production methods could eliminate famine.
Medical 10.
            
﻿
 could be assessed more quickly.
Life expectancy might increase.

❓ Transcript

Nanotechnology

You will hear a lecture about nanotechnology and its possible applications.

First, you have some time to look at questions 31 to 40.

Now listen carefully and answer questions 31 to 40.

Today we'll examine nanotechnology, an important scientific field.

Nano means extremely small, so this is science and engineering at the level of atoms and molecules.

By controlling and rearranging atoms, it may eventually be possible to manufacture almost anything.

Science at this scale therefore has very large implications.

Nanotechnology promises enormous benefits, but every emerging technology has early difficulties.

In this case, the public frequently misunderstands what the technology can actually do.

Science fiction stories have encouraged fears of invisible robots monitoring people or reproducing until they dominate the world.

How should such a powerful field be managed?

Some scientists argue that nanoparticles should be treated as new chemicals with independent safety testing and clear labels.

They also recommend greater caution when these particles are handled in laboratories and factories.

Other people call for new products such as cosmetics to be withdrawn and for parts of nanotechnology research to stop temporarily.

My own view is that exploration and practical development should continue.

Most scientists would support safeguards against unethical applications, but we cannot assume every innovation is harmful.

As with any technology, the crucial issue is how it is used.

In transport, nanotechnology may produce stronger, more durable metals that are nearly unbreakable, lighter and more flexible.

Aircraft could weigh 50 times less than current models.

These improvements would also reduce the cost of space travel, making it accessible to ordinary people.

Computer components could be reduced to minute dimensions.

Future computers may operate faster, provide a million times more memory and still be no larger than a sugar cube.

Power generation could also change.

Nanotechnology should lower the cost of solar cells, making solar energy far more affordable.

Environmental applications may be even broader.

Tiny airborne robots could help rebuild the ozone layer.

On a local scale, the technology could remove oil and other pollutants from water after environmental disasters.

If products are constructed atom by atom, manufacturers would use only the exact materials needed, producing no waste.

The ability to reproduce almost anything also has major consequences for health.

Food-producing machines might one day eradicate famine.

Medicine may experience the greatest impact.

Tiny biosensors could analyze medical tests in minutes rather than days.

Some researchers even speculate that nanorobots might slow aging and extend human life.

These possibilities are exciting, although nobody can say precisely when they will become available.

That is the end of part four.

You now have one minute to check your answers to part four.

🔥 Answer key (đáp án và giải thích)

Giải thích chi tiết

❓Câu hỏi: According to the speaker, one problem associated with nanotechnology is that

✅ Đáp án đúng: C. the public misinterprets it.

▶️ Bắt đầu nghe ở: Đoạn người nói chuyển sang nói về khó khăn ban đầu của nanotechnology: “Nanotechnology promises enormous benefits, but every emerging technology has early difficulties.”

☺️ Giải thích đáp án:

Đọc câu hỏi, xác định từ khóa cần nghe: one problem associated with nanotechnology (= một vấn đề/khó khăn liên quan đến công nghệ nano).
Ngay sau đó, speaker nói rất rõ: “the public frequently misunderstands what the technology can actually do”.
Cụm misunderstands tương đương với misinterprets trong đáp án.
Vì vậy, vấn đề được nhắc đến không phải là bản thân công nghệ chắc chắn nguy hiểm, mà là công chúng hiểu sai / diễn giải sai về nó → chọn C.

🧐 Lưu ý: ❌ A. it may threaten our way of life. => Đây là cách hiểu suy diễn quá mức từ các nỗi sợ trong truyện khoa học viễn tưởng, không phải vấn đề speaker kết luận trực tiếp. ❌ B. it might be used to monitor people. => Audio có nhắc đến “invisible robots monitoring people”, nhưng đây chỉ là nỗi sợ do science fiction tạo ra, không phải vấn đề chính speaker nêu ra.

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Nanotechnology - IELTS Listening with Practice test, Audio, Transcript, And Explanation

👂️ Audio and questions

❓ Transcript

🔥 Answer key (đáp án và giải thích)

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