cast off，cast away，cast down和cast about/around for用法解析

1.cast off丢弃、摆脱；放船，发船。

The essay exhorts women to cast off their servitude to husbands and priests...

该文劝告女性不要再对丈夫和牧师低三下四。

There was an extraordinary feeling of hope and relief, as if a great burden had been cast off.

有种充满希望和解脱的奇妙感觉，好似卸下了一副千斤重担。

We cast off and set sail at 8 am. 我们上午8点钟解缆起航。

He cast off, heading out to the bay.

他解开缆绳，往海湾驶去。

By 09.30 we had cast off and were heading down-river.

9点30分时我们就解缆向下游出发了。

2.cast away

（1）扔掉，丢掉，浪费掉

We were cast away on an island without food or water.

我们被丢弃在小岛上，没有食物，也没有淡水。

Don't cast away these old papers. 别把这些旧报纸扔掉。

cast away one's time 浪费时间

Be sure not to cast away your time.

切莫虚度光阴。

（2）（通常用被动式）使（船难中幸存者）漂流到。

The sailors were cast away on a desert island. 因船失事，水手们流落到一个荒岛上。

3.cast down（通常用被动式）气馁，沮丧。使沮丧;使伤心;使忧愁

I am not cast down by it because I believe in the fundamental strength of the business.

这件事并没有使我灰心，因为我相信企业的深厚根基。

Ever since I saw the diary excerpts I've been cast down.

自从看到日记摘录，我就一直非常沮丧。

Anyone would be cast down by such news as that.

像那样的消息会使任何人感到沮丧。

Father was very cast down by the news of our aunt's death. 姑妈去世的消息使父亲很沮丧。

He was cast down by the sad news.

这悲伤的消息使他情绪低落。

4.cast about/around for（没有被动式）到处寻找，试图（设法）找到。

I also cast about for some means of warning him.

我也想寻找些方法来警告他。

I stood still, therefore and cast about for some method of escape.

我一动不动地站在那里，盘算着用什么法子逃跑。

Cast about for new ways to proceed.

尽力找到进行下去的新方法。

The prisoner cast about for a way of escape. 犯人试图找到一个逃跑的办法。

John cast around for a good title for his article. 约翰想给他的文章找个好标题。

He cast about desperately for something to say.

他努力地想找些话说。