The key answer of exercise 4

2

• Paragraphs end at Museum and maintenance.
• paragraph 1 – introduces inventor and invention
• paragraph 2 – describes how he came to invent the cat’s eye
• paragraph 3 – talks about applications of cat’s eye and compares it with other inventions

3

1. I believe Percy Shaw is a great inventor and his cat’s eye should be displayed in the Design Museum.
2. ... but how many of these were really invented by one man?
3. It made its inventor millions of pounds, yet few know his name.
4. Their inventors ‘stood on the shoulders of giants’ ...
5. ...telephones, cars, computers, etc ....
6. yet few know his name – sentence 2, Surely, therefore, Percy Shaw ... – last sentence, Besides, few inventions can ... – last sentence but one