Question

英语单选问题

When a new disease break out,experts must _________ what to do in the fastest way.
凭什么用figure out而不用point out？

The police needed more evidence ________ they could draw a conclusion.

凭什么用before而不用until？？？

Answer 1

1. 当一种新的疫情爆发时，专家们必须用最快的方法想出做什么。
1）figure out "计算出，解决，弄明白”有“solve，work out "的意思。
如：I didn't figure out how to do it. 我不知道该怎么做。
2）point out "指出 ，说出（事实或错误等）如：I must point out your errors.
2. 在得出结论之前，警察们需要更多的证据。
在这里用之前before，until是 “一直到...".如：He did his homework until 11 o'clock.(他做作业到11点）
在词组 not ...until 中是 “直到.....才”，也只有 在 这个句式中，until 才可以和before互换。如：He didn't finish his homework until 11 o'clock.= He didn't finish his his homework before 11 o'clock. （他11点才做完了作业）

Answer 2

1. figure out 有 “想出”的意味 相当于find out 或think out ，而point out 有 ”表明“的意味，意思不同。
2. "until"前面的主语一般要用否定。

Answer 3

figure out在这里意思是想出，二ponit out是指出。
before是在什么以前，until是直到

Answer 4

有指出的意思