四六級(jí)頻道為備考英語四六級(jí)的同學(xué)整理了《2019年6月英語四級(jí)聽力： How High Can You Jump?》一文，希望可以為大家?guī)韼椭?，預(yù)祝大家高分通過本次考試!
2019年6月英語四級(jí)聽力50篇匯總
英語四級(jí)聽力50篇： How High Can You Jump?
Fleas trainers have observed a strange habit of fleas while training them.
Fleas are trained by putting them in a cardboard box with a top on it. The fleas will jump up and hit the top of the cardboard box over and over and over again. As you watch them jump and hit the lid, something very interesting becomes obvious. The fleas continue to jump, but they are no longer jumping high enough to hit the top.
When you take off the lid, the fleas continue to jump, but they will not jump out of the box. They will not jump out because they cannot jump out. Why? The reason is simple. They have conditioned themselves to jump just so high. Once they have conditioned themselves to jump just so high. Once they have conditioned themselves to jump just so high, that is all they can do!
Many times, people do the same thing. They restrict themselves and never reach their potential. Just like the fleas, they fail to jump higher, thinking they are doing al they can do.
Useful Words and Expressions:
1. cardboard 紙板
2. lid 蓋子
3. conditioned 有條件的，習(xí)慣于……的
4. restrict 限制，約束
be restricted within narrow limits 限于狹窄的范圍內(nèi)
be restricted in one’s movements 行動(dòng)受限制