Analyze and comment on the following.Read the following extract and try to guess the meaning of the word in italics. Then explain what contextual clues help you work out the meaning.
‘Get me an
avocado, please,’Janet said, smacking her lips, but her brother, with a glance up at the branches, said that there were none ripe yet.
【正确答案】：
USING RELEVANT DETAILS. 'SMACKING HER LIPS', 'BRANCHES', 'RIPE' FORM A FRAME OF REFERENCE FOR US, IMPLYING IT IS SOMETHING EATABLE WHICH CAN BE OBTAINED FROM TREES WHEN RIPE. SO, IT REFERS TO FRUITS. 
【题目解析】：使用的是相关细节来猜测词义。“咂着她的嘴唇”、“树枝”、“成熟”构成了我们的参照系，暗示着它是一种可以吃的东西，成熟时可以从树上获得。所以，它指的是水果。
