练习说明
段落填空 题目要求： 阅读文段，从文中挑选原词补全句子，每道题目都有特定的字数要求，以黑体加粗字标示。请把答案填到每题空缺处。
Questions 7 - 13
Complete he notes below.
Choose ONE WORD ONLY from the passage for each answer.
Write your answers in boxes 7-13 on your answer sheet.
原文
Shell-stringing was, and remains, a painstaking process, requiring knowledge of coastal resources and a great deal of patience. Aunty Dulcie's daughter Patsy Cameron has explained how the women pierced each shell with a tool consisting of a jawbone and sharpened tooth of a kangaroo or wallaby. The shells were then threaded on string made from natural fibres, smoked over a fire, and rubbed in grass to remove their outer coating and reveal the pearly surface. The shells were later treated with penguin or muttonbird oil.
European colonisation introduced new tools and materials, including acidic liquids such as vinegar to clean the shells and steel punches to make holes in them. Needles and cotton or synthetic thread enabled the women to incorporate smaller shells into increasingly intricate designs.
Necklace-making is dependent on the availability of shells, and shell collection has its season. Aunty Dulcie regularly returns to the Furneaux Islands to replenish her supplies. We still walk for miles on the beach, she said. ‘We take our lunch and crawl along on our hands and knees to get the shells.’ Men often help women collect the shells, especially the maireeners (rainbow shells), which are found on kelp, a type of seaweed. These shells are best when picked directly from the sea. ‘We don't use the ones we pick up on the beach because they are too brittle and they lose their colour,’ said Aunty Dulcie.