阅读理解 What is the single largest cause  of sick leave in the UK? The answer is not the common cold  or flu, but back pain. Back pain affects one in three British adults, cost the country over ￡5 billion every year and is obviously difficult  to treat. But now Britain's National Health Service (NHS) will be offering a new solution: acupuncture . The ancient Chinese needle therapy has been around in the UK for many years, but for the first time it has been  officially  supported  by  the  NHS’ advisory body, the National Institute for Clinic Excellence (NICE). Traditionally,doctors in the UK have advised back pain sufferers to stay active,do stretching exercises and take painkillers when  necessary. In more serious cases some people are given  X-rays treatment or injections with therapeutic substances. NICE, however,says there is evidence that acupuncture may be more effective than expensive X-rays or injections, to patients who  have  been s uffering  for over  six weeks should  be given  acupuncture treatments. As an alternative to acupuncture , patients will be able to choose either a course of spinal manipulation  (脊柱推拿)  or a series of special sessions. In the UK, acupuncture is classified as a complementary  (辅助的)  therapy, which is the term given to a medical procedure which hasn't  been subjected  to  the strict trials by which  scientists prove some treatment work. While many experts have welcomed the move to make acupuncture available on the NHS, some are still skeptical about its effectiveness. Research from the US earlier this month found that simulated acupuncture using toothpicks which do not pierce the skin could be as good as using real needles. So while some are yet to be convinced,  back  pain  sufferers  will be hoping  that acupuncture helps them feel healthy and mobile again. Employers, on the other hand, will  be  hoping  it gets them back to work. 1. What can be the best title for the passage? A. Acupuncture m the UK. B. The largest cause of sick leave. C. The ancient Chinese medicine. D. Different ways to treat back pain. 2. According to NICE, which of the following ways is more effective to treat back pain? A. To take painkillers B. To use the Chinese needle therapy C. To take X-ray treatment or injections D. To stay active and do stretching exercises 3. Which of the following statements about acupuncture is TRUE? A. Doctors can use needles or toothpicks to perform acupuncture. B. Patients taking acupuncture have to take a course of spinal manipulation. C. Patients suffering back pain for a long time are more advised to use acupuncture. D. Acupuncture costs less money and has lower effects than X-rays or injections 4. Why is acupuncture classified as a complementary therapy in the UK? A. It is not strict in the treatment. B. Some British don't have trust in it C. The main British treatment is very effective. D. Its medical procedure hasn't been strictly tested scientifically.