剑桥雅思13Test3雅思听力Section3答案+解析

剑桥雅思13Test3雅思听力Section3真题如下：

SECTION 3 Questions 21-30

Questions 21-24

Choose the correct letter, A, B or C.

Project on using natural dyes to colour fabrics

21.What first inspired Jim to choose this project?

A textiles displayed in an exhibition

B a book about a botanic garden

C carpets he saw on holiday

22.Jim eventually decided to do a practical investigation which involved

A using a range of dyes with different fibres.

B applying different dyes to one type of fibre.

C testing one dye and a range of fibres.

23.When doing his experiments, Jim was surprised by

A how much natural material was needed to make the dye.

B the fact that dyes were widely available on the internet

C the time that he had to leave the fabric in the dye.

24.What problem did Jim have with using tartrazine as a fabric dye?

A It caused a slight allergic reaction.

B It was not a permanent dye on cotton.

C It was ineffective when used on nylon.

Questions 25-30

What problem is identified with each of the following natural dyes?

Choose S IX answers from the box and write the correct letter, A—H, next to Questions 25-30.

Natural dyes

25 turmeric                .............

26 beetroot                .............

27 Tyrian purple            .............

28 logwood                .............

29 cochineal               .............

30 metal oxide              .............

谈话场景：作业场景

人物关系：学生Jimhe导师

谈话话题：关于天然燃料使用问题的讨论

考题解析

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