11月全国英语等级考试PETS-5阅读试题.pdfVIP

11 月全国英语等级考试PETS-5 阅读试题 2016 年 11 月全国英语等级考试PETS-5 阅读精选试题 距离 2016 年下半年的公共英语五级考试越来越近了，不知道大家 有没做好充足的准备呢?以下是 yjbys 网店铺整理的关于全国英语等级 考试 PETS-5 阅读精选试题，供大家备考。 Section Ⅲ Reading Comprehension (50 minutes) Part A ：Read the following texts and answer the questions which accompany them by choosing A ，B ，C or D.Mark your answers on ANSWER SHEET 1. Text 1 Gene therapy and gene based drugs are two ways we could benefit from Our growing mastery of genetic science. But there will be others as well.Here is one of the remarkable therapies on the cutting edge of genetic research that could make their way into mainstream medicine in the coming years. While it’S true that just about every cell in the body has the instructions to make a complete human ， most of those instructions are inactivated ，and with good reason ：the last thing you want for your brain cells is to start churning out stomach acid or your nose to turn into a kidney.The only time cells truly have the potential to turn into any an all body parts is very early in a pregnancy.when so- called stem cells haven’t begun to specialize. Yet this untapped potential could be a terrific boon to medicine.Most diseases involve the death of healthy cells-brain cells in Alzheimer’s， cardiac cells in heart disease ，pancreatic cells in diabetes ，to name a few;if doctors could isolate stem cells ，then direct their growth ，they might be able to furnish patients with healthy replacement tissue. It was incredibly difficult ，but last fall scientists at the University of Wisconsin managed to isolate stem cells and get them to grow into neural ，gut ，muscle and bone cells.Th