2、bout12and50,womenproducehormonesthatareinvolvedinfertility(生育能力).Thesehormonesalsohaveapositiveeffectontheheartandbloodflow.Infact,womenarelesslikelytohavehighbloodpressureortodiefromheartattacks.38. They help the body defend itself against some kinds of infections. This
3、means that women generally get sick less often and less seriously than men. The common cold is a good example: women, on average, get fewer colds than men.39.Scientistsarestillnotexactlysurehowinfluenceaging,buttheybelievethattheydo.Somethinkthatawoman’sbodycellshaveatenden
4、cy(倾向)toagemoreslowlythanaman’sOthersthinkthataman’sbodycellshaveatendencytoagemorequickly.40 .A．However, women, on average, live longer.B .The biological factor plays an important part.C. Women are also helped by their female genes.D. The female hormones also protect the b
5、ody in another way.E. Recent research seems to support both of these possibilities.F. Therefore, women are more healthy than men and can live a better life.G. Hormones are chemicals which are produced by the body to control carious body functions.演讲训练PublicSpeakingTrainingE
