Read the following four statements. Each statement contains information given in one of the paragraphs of the text. Scan the text for three minutes and identify the paragraph from which the information is derived. 1) When her daughter is leaving, the mother feels doubtful whether her daughter could take good care of herself. 句子信息出自课文第 ______ 段。 2) The mother's attitude changes when she finds an envelope with items they gave their daughter and sees the words “DO NOT THROW AWAY” . 句子信息出自课文第 ______ 段。 3) The daughter bought a large and expensive vehicle probably because her mother advised her to buy a practical and gas-efficient car. 句子信息出自课文第 ______ 段。 4) The mother thought that although her daughter tries to show she is an adult, actually she is not. 句子信息出自课文第 ______ 段。