新托福 考试写作如果考生想拿高分，脑子里一定要有几篇文章，背上几篇范文，能以备不时只需。托福 写作是中国考生的弱项，只有在日常生活中多读些范文，了解托福写作中的逻辑思维，才可更好的进行锻炼。下面我们一起欣赏这篇托福写作范文。
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C;a departure of a few degrees from this value seriously impairs their function
