Câu hỏi và đáp án bài nghe Test 4 section 4 - IELTS Cambridge 10 - Nanotechnology technology on a small scale

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Questions 31-33

Choose the correct letter, A, B or C.

Nanotechnology: technology on a small scale

31. The speaker says that one problem with nanotechnology is that
A it could threaten our way of life.
B it could be used to spy on people.
C it is misunderstood by the public.

32. According to the speaker, some scientists believe that nano-particles
A should be restricted to secure environments.
B should be used with more caution.
C should only be developed for essential products.

33. In the speaker's opinion, research into nanotechnology
A has yet to win popular support.
B could be seen as unethical.
C ought to be continued.

Questions 34-40

Complete the notes below.

Write ONE WORD ONLY for each answer.

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Uses of Nanotechnology

Transport

• Nanotechnology could allow the development of stronger 34 __________.
• Planes would be much lighter in weight.
• 35 __________ travel will be made available to the masses.

Technology

• Computers will be even smaller, faster, and will have a greater 36 __________.
• 37 __________ energy will become more affordable.

The Environment

• Nano-robots could rebuild the ozone layer.
• Pollutants such as 38 __________ could be removed from water more easily.
• There will be no 39 __________ from manufacturing.

Health and Medicine

• New methods of food production could eradicate famine.
• Analysis of medical 40 __________ will be speeded up.
• Life expectancy could be increased.

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Section 4, Questions 31-40

31. C
32. B
33. C
34. metal/metals
35. space
36. memory
37. solar
38. oil
39. waste
40. tests