【教材原句】 But he became inspired when he thought about helping ordinary people exposed to cholera.但是当他一想到要帮助那些受到霍乱威胁的普通百姓,他就感到很振奋。

　　【观察思考】

　　(1)A real artist can always expose his students to good art and music.

　　称职的艺术家总能使他的学生接触美好的艺术和音乐。

　　(2)As a journalist in the war,she was exposed to many dangers.

　　作为战地记者,她置身于多种危险中.

　　(3)Exposure of the body to strong sunlight can be harmful.

　　身体受日暴晒会造成损伤。

　　【归纳总结】

　　(在日光、风雨、危险中)暴露,暴晒(后接to+n.);(摄影的)曝光n.　　

　　be exposed to 　　

　　【练习】用expose的适当形式填空

　　(1)The soil was washed away by the flood,　　　 bare rock.

　　(2)The baby was left 　　　the wind and rain.

　　(3)The 　　　of the plot against the President probably saved his life.

　　5.absorb 吸收;使(精神)贯注;占用(时间)

　　【教材原句】 The second suggested that people absorbed this disease into their bodies with their meals.第二种看法是人们是在吃饭时把这种病引入体内的。

　　【观察思考】

　　(1)The equipment can absorb moisture from the air.这一设备能从空气中吸收水分。

　　(2)He is absorbed in study.他专心读书。

　　(3)This job absorbs all of my time.这件工作占用了我的全部时间。

　　【归纳总结】