[解析]
(1)细节理解题。根据Tutor部分的第一句If you're particularly good at a subject,you might be able to get paid for helping younger students get better grades.(如果你特别擅长某一门科目,你可以通过帮助低年级的学生提高成绩来获得报酬)可知,成为家教的必备条件是拥有优秀的学科成绩。故选C项。
(2)推理判断题。根据Babysitter部分的To get more work chances,get a first aid certificate.(为了获得更多的工作机会,考取急救证书)和With a driver's license,you will be more competitive.(有了证书,你会更有竞争力)可推知,当你申请保姆时,考取急救证书懂得急救知识是你具备的优势。A.Charging a much lower price.收取更低的价格;B.Knowing first aid acknowledge.懂得急救知识;C.Being able to work for a long time.能够长时间工作;D.Enjoying spending time with animals.享受和动物在一起的时光。故选B项。
(3)数字计算题。根据Lifeguard部分的At the beginner level,you might only make ﹩9 to ﹩10 an hour.(在初级阶段,你可能每小时只能赚9到10美元)可知,新手救生员3小时的工资大约是27到30美元。故选A项。