When you jump , you fall back to earth. This kind of force is called gravity . It is not only present on the Earth. Gravity also exists on the Sun, on the Moon, and on the other planets. Isaac Newton was a great scientist . He discovered gravity and the laws of motion. Newton was famous for his achievements in physics. And he was also a great mathematician . But he remained humble . In his opinion, he was able to see far because he stood on the shoulders of giants.
-jump ［ʤʌmp ］ vi. 跳跃；跳起来
-gravity ［'grævəti ］ n. 地心引力
-present ［'preznt ］ adj. 存在的
-exist ［ɪg'zɪst ］ vi. 存在；生存
-scientist ［'saɪəntɪst ］ n. 科学家
-achievement ［ə'tʃi:vmənt ］ n. 成就
-mathematician ［ˌmæθəmə'tɪʃn ］ n. 数学家
-humble ［'hʌmbl ］ adj. 谦虚的，谦恭的，谦逊的
in one's opinion 据某人的看法，在某人看来
1. Newton was famous for his achievements in physics.
牛顿因其在物理学方面的成就而名声斐然。
He is famous for his new invention. 他因其新发明而著称。
Hitler was notorious for the Second World War he had launched.
希特勒因发动第二次世界大战而臭名昭著。
2. He was able to see far. 他能够看得很远。
That little girl was able to do her homework by herself.
那个小女孩能够独立完成作业。
I am able to swim without the help of a life buoy. 我能够不靠救生圈游泳。
艾萨克·牛顿
你跳起后，会落回地面。这种力称为“地心引力”，它不仅存在于地球上，还存在于太阳、月球和其他行星上。艾萨克·牛顿是一位伟大的科学家，他发现了地心引力和运动定律。牛顿因其在物理学方面的成就而名声斐然，他还是个了不起的数学家，但他一直非常谦虚。在他看来，他之所以能看得远，是因为他站在巨人的肩膀上。