(药学英语翻译讲义passage1-4.docxVIP

Passage 1 and 2Overview of the Digestive System-translation Overview?of?the?Digestive?System? ? ?Consider?for?a?moment?a?Big?Mac.?The?purpose?in?your?eating?a?Big?Mac,?other?than?simple?hedonism,?is?to?assimilate?the?nutrients?it?represents?and?make?them?available?to?build,?repair?and?maintain?your?own?tissues,?as?well?as?provide?energy?for?studying?and?occa-sional?other?pursuits.? ? ?You?may?have?asked?yourself?-?Exactly?what?nutients?are?present?in?a?Big?Mac?that?I?can?assimilate??MacDonalds?comes?close?to?full?disclosure?in?this?regard,?but?what?they?dont?tell?you?is?that?in?order?to?take?advantage?of?these?nutrients,?you?have?to?provide?the?means?to?carefully?break?them?down?into?much?smaller?molecules?that?can?be?imported?into?blood.?Luckily,?your?digestive?system?takes?care?of?this?very?complex?process?so?efficiently?that?most?of?the?time?you?dont?even?need?to?think?about?it.? ? ?At?its?simplest,?the?digestive?system?it?is?a?tube?running?from?mouth?to?anus.?This?tube?is?like?an?assembly?line,?or?more?properly,?a?dissembly?line.?Its?chief?goal?is?to?break?down?huge?macromolecules?(proteins,?fats?and?starch),?which?cannot?be?absorbed?intact,?into?smaller?molecules?(amino?acids,?fatty?acids?and?glucose)?that?can?be?absorbed?across?the?wall?ofthe?tube,?and?into?the?circulatory?system?for?dissemination?around?your?body.?? ? Consider?for?a?moment?a?Big?Mac.?The?purpose?in?your?eating?a?Big?Mac,?other?than?simple?hedonism,?is?to?assimlate?the?nutrients?it?represents?and?make?them?available?to?build,?repair?and?maintain?your?own?tissues,?as?well?as?provide?energy?for?studying?and?occasio-nal?other?pursuits.? ? The?breakdown?of?foodstuffs?like?a?Big?Mac?is?accomplished?through?a?combination?of?mechanical?and?enzymatic?processes.?To?accomplish?this?breakdown,?the?digestive?tube?requires?considerable?assistance?from?accessory?digestive?organs?such?as?the?salivary?glands,?liver?and?pancreas,?which?dump?their?secretions?into?the?tube.?The?name?accessory?should?not?be?taken