I got a new job in Catholic University in Washington. In addition to a good chance, I {#blank#}1{#/blank#}(offer) a new flat to live in. One summer vacation, apart {#blank#}2{#/blank#} going to the park, I had not been outside my flat so as{#blank#}3{#/blank#} (do) an experiment about a disease. The {#blank#}4{#/blank#} (result) of the experiment were {#blank#}5{#/blank#} (value) to me and they would contribute to the success of my research. It is really difficult to draw {#blank#}6{#/blank#}conclusion without enough evidence. I felt quite puzzled,{#blank#}7{#/blank#} even made me doubt that the experiment would make sense.{#blank#}8{#/blank#} (gradual), I was not enthusiastic about it. After all, too much hard work and too little rest led to illness. One night, I went out to attend a lecture by a famous philosopher.{#blank#}9{#/blank#} (inspire) by him, I went back to continue the experiment and eventually got the expected result. How happy I was! The next day, I proudly announced that the disease was {#blank#}10{#/blank#}control.

    Our bodies can be younger or older than our actual age {#blank#}1{#/blank#} (depend) upon diet, lifestyle choices and physical activity. This is called biological(生理的)age, {#blank#}2{#/blank#} could be different from the age on your driver's license, which {#blank#}3{#/blank#} (call) chronological(时间的)age. {#blank#}4{#/blank#} recent study of over 900 adults who were tracked for 12 years, from ages 26­38, {#blank#}5{#/blank#} (show) that people who were aging faster, meaning that their biological age was higher than their chronological age, were not as healthy or {#blank#}6{#/blank#} (physical) fit. This group was also more likely {#blank#}7{#/blank#} (have) cognitive decline(认知衰退)and was at a {#blank#}8{#/blank#} (great) risk for age­related health conditions.

    A growing body of research proves that the keys to aging successfully are a {#blank#}9{#/blank#} (combine) of exercising regularly, keeping busy with life, and maintaining a healthy diet with nutritious foods. These three key elements could contribute {#blank#}10{#/blank#} aging gracefully, and successfully, too.