Have you ever wondered{#blank#}1{#/blank#}children always seem to have bas of energy and never run out of steam? Researchers have discovered that children have levels of recovery of endurance athletes. In fact, scientists say children's muscles recover from "high-intensity exercise" a lot {#blank#}2{#/blank#}(quick)than athletes. A study looked at the performance levels of children when they were cycling, and compared their fitness to {#blank#}3{#/blank#} of athletes. Rwsearcher Dr Sebastien Ratel suggested they{#blank#}4{#/blank#}(find)the children used more of their aerobic metabolism and were therefore less tired during the high-intensity physical activities. The children also recovered very quickly—even faster than the well-trained adult endurance athletes.

    The researchers hope that{#blank#}5{#/blank#}(they)finding will help scientists have a better {#blank#}6{#/blank#}(understand) of how the human body changes with age. It could lead to advantages in the fight{#blank#}7{#/blank#}diabetes and other diseases. Dr Ratel said the research was{#blank#}8{#/blank#}(particular)important as more children were become less active. He warned." With the diseases related to physical inactivity{#blank#}9{#/blank#}(rise), know the changes with growth that might contribute to the risk of disease."{#blank#}10{#/blank#}is helpful for children to maintain their fitness as they grow up and play as much as they could so they renin healthy as adults.

    We walked inside a museum in Garden City and looked around, eager {#blank#}1{#/blank#} (meet) Kobie Boykins, a NASA engineer. He helped to design the Mars rover (探测器) Curiosity, {#blank#}2{#/blank#} is still exploring to this day.

    In a big presentation room, Boykins {#blank#}3{#/blank#} (talk) about the team's newest rover, Mars 2020. We asked him if the new rover would be {#blank#}4{#/blank#} most complicated one he and his team {#blank#}5{#/blank#} (make) so far. He told us that most of the engineering would be the same. However, the rover is still more {#blank#}6{#/blank#} (advance) and will be able to get more accurate test {#blank#}7{#/blank#} (result).

    When Boykins finished his presentation, some people brought him into another room where we would interview him. We asked if he felt he was {#blank#}8{#/blank#} a lot of pressure at work. He told us that he {#blank#}9{#/blank#} (actual) put a lot of pressure on himself. He said that working on the spacecraft wasn't putting him in that position, but he still wanted to make {#blank#}10{#/blank#} perfect.

    A lady, who found it not easy to wake up early, bought an alarm clock. These clocks are so made as {#blank#}1{#/blank#} (strike) with a loud noise at any hour the owner pleases to set them. The alarm clock {#blank#}2{#/blank#} (perfect) did its duty, and went off at the right time. She {#blank#}3{#/blank#} (rise) at once, and felt better all day for it. {#blank#}4{#/blank#}, after a time, the lady grew tired of early rising. When she {#blank#}5{#/blank#} (wake) up by the noise, she merely turned over in bed and slept again. In a few days, the clock spoke just as loudly as ever, but she didn't hear {#blank#}6{#/blank#} because she had been in the habit of not obeying it, {#blank#}7{#/blank#} (find) that she might as well be without it, she was determined that when she heard the sound she would jump up.

    So it is {#blank#}8{#/blank#} conscience. If we will obey its voice, even in the smallest things, we can always hear it, clear and strong. But if we allow ourselves to do {#blank#}9{#/blank#} we fear or may not be right, we shall grow more and more {#blank#}10{#/blank#} (sleep) until the voice of conscience has no longer the power to wake us.

    A Frenchman went to a small Italian town and stayed with his wife at the best hotel there. One night, he went out for a walk alone. It was late and the small street was dark and {#blank#}1{#/blank#}(quietly). Suddenly he felt someone behind him. He turned his head and saw an Italian young man,{#blank#}2{#/blank#} quickly walked past him. The man was nearly {#blank#}3{#/blank#} of sight when the Frenchman suddenly found that his watch was{#blank#}4{#/blank#}(miss). He thought that {#blank#}5{#/blank#} must be the Italian who had taken his watch. He decided {#blank#}6{#/blank#} (follow) him and get back the watch. Soon the Frenchman{#blank#}7{#/blank#}(catch) up with the Italian . Neither of them understood the other's language. The Frenchman frightened the Italian with his fist(拳头) while{#blank#}8{#/blank#} (point) at the Italian's watch. In the end the Italian gave up his watch to the Frenchman. When he returned to the hotel, the Frenchman told his wife what had happened. He was{#blank#}9{#/blank#} (great) surprised when his wife pointed to the watch on the table. Now he realized that by mistake he{#blank#}10{#/blank#}(rob) the watch and it was the Italian's.