Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B)，C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre .Passage OneQuestions 46 to 50 are based on the following passage. Most of us trust our doctors even when they hand us a prescription for a drug we can't pronounce. But natural, holistic (全面的) products are fully in vogue nowadays, and the Internet has created a way for non-experts to become as- or more informed as their general practitioner when it comes to obscure treatment methods.“People are now more willing to take their health and wellness into their own hands,”says Danielle Hardee, a wellness advocate for do TERRA International.Oddly enough, until fairly recently, Hardee was not one of those people. Her first experience with essential oils came in treating her pet bulldog. After seeking suggestions for the sickly pet on Facebook, a fellow fosterer told Hardee about certain oils she could try applying to the animal's skin. Pairing her curiosty with healthy skepticism, Hardee dove deep into researching the safety of the oils. “I was very happy with everything I found," she says.“I started not just using them on the foster dog, but also our son, who needed thebenefits of the respiratory support. ”While the dog' s recovery was soon apparent, the benefits for her son were almost immediate.The oils in question are considered essential" not due to any proven vitality, but because they contain the essence of the plants from which they are extracted. Peppermint, lavender and citruses are among the most common on the market today, but numerous essential oils have been in use for several centuries After seeing how beneficial the concentrated liquids were to both the two legged and four-legged members of her family, Hardee soon found herself teaching essential oil casses.“It became something I felt so strongly about, I had to share it," she says. The classes quickly grew in size and geographical span and Hardee soon became an advocate for doTERRA International, a natural nutrition and wellness company.As growing popularity pushes essential oils into the broader market, Hardee recommends curious customers proceed with caution concerning quality and purity. Hardee believes the effects of quality oils will be the evidence that helps them prevail.“I'm not a holistic health guru (专家)，”she emphasizes.“I'm just seeing it with my own eyes."46. What is people's attitude to their health and wellness nowadays?A) They are ready to put their health into the doctors' hands.B) They are convinced that the natural methods are of no use to them.C) They are willing to use natural methods to deal with their willness.D) They are reluctant to visit doctors and get some prescriptions.47. What did Hardee do with the suggestions about oils on Facebook?A) She made detailed studies to make sure the oils were safe.B) She tried the oils on herself to sce whether they were effective.C) She asked the professional doctors for advice.D) She totally accepted the oils without any doubt.48. Why are those oils considered“essential"?A) Because they are used to save people's lives.B) Because they are taken from the essence of plants.C) Because they are essential to patients' recovery.49. According to the passage, what is the probable effect of the oils on humans?A) They function as a psychological comfort to humans.B) They provide sweet flavor for humans.C) They stimulate humans' spirits and make them energetic.D) They exert beneficial healing effects on humans.50. What is Hardee's suggestion for curious customers?A) They should question the effects of the oils on any occasion.B) They may choose any one they like since the oils are popular.C) They should choose those oils which are good and pure.D) They should trust the oils because they have been used for centuries.