【英语词汇】

quicken、speed up、accelerate

decelerate、 slow down

佳中

quicken

speed up

accelerate

这组词都可表示“加快”、“加速”的意思。

quicken 普通用语，指缩短所耗费的时间，增加速度。 accelerate 正式用词，着重指频率

或速率运转加快。speed up 口语用语，可与 accelerate 换用。

1）Your heart beat will quicken when you run up the stairs.

跑上楼梯时，心跳会加速。

2) The pace of the event will be quickened, now that they have already taken

the matter in hand.

由于他们已经掌控了这个事情，这次活动的步伐将加快。

3）She felt her heartbeat quicken as he approached.

随着他的走近，她觉得自己的心跳加快了。

4）Fertilizer will quicken the growth of these tomato plants.

化肥会加快这些番茄的生长。

5）The particle will accelerate under the action of the applied force.

粒子在所加力的作用下将作加速运动。

6) Human activity has had a devastating effect on species diversity, and the rate

of human-induced extinctions is accelerating.

人类活动已经对物种多样性造成了毁灭性的影响，而且人为的物种灭绝正在加速。

7）Exposure to low-level radiation for a long time may accelerate aging and

cause cancer.

长期暴露在低水平辐射下可能会加速人的老化并引起癌症。

8) For this purpose , China will encourage innovation accelerate the process of

commercialization , industrialization and internationalization.

为此，中国将鼓励创新，加快商业化、工业化和国际化的进程。

9) We'd better speed up if we want to get there in time.

如果我们想准时到达那里，我们最好加快速度。

10）If the modernization of our country is to be realized sooner, we must speed

up the pace of our economic growth.

如果要提前实现我国的现代化,我们必须加快速我们的经济增长的步伐。

11) It is necessary to speed up the construction of a contingent of talents and

enhance the quality of the entire nation.

要加快人才队伍建设和提高国民素质。

decelerate

slow down

这组词都可表示“减慢”、“ 减速”的意思。

decelerate 是 accelerate 的反义词，表示“减速”的意思。slow down 口语用语，可

与 decelerate 换用。

1) The spaceship begins to decelerate as it travels towards the moon, because

it is still under the influence of the earth’s gravity.

宇宙飞船驶会向月球时开始减速，因为它仍受到地球地心引力的影响。

2) Further government tightening could decelerate the current outflow of bank

liquidity into the share market.

中国政府会进一步紧缩银根会减缓目前银行资金流入股票市场。

3）Above all, we can decelerate by adjusting our perspective.

最重要的是我们可以通过调整我们的视角来放慢速度。

4) Once you are in the habit of rushing through life, being on the go from

morning till night, it is hard to slow down and unwind.

一旦你的习惯于匆的生活,从早忙到晚,就很难放慢脚步放松下来。

5）Our brains slow down a bit when we sleep and dream.

当我们睡眠进入梦乡时，大脑的运转会减速。

6）We will speed up our pace when the conditions are good and slow down if the

conditions are unfavorable.

条件好了，步子可以快一些，条件不太好时，步子要放慢一点。