whatabout与howaboutA:-DoyoulearnEnglishbywatchingEnglishLanguagevideos?B:-It'stoohardtounderstandthevoices.C:-WhataboutkeepingadiaryinEnglish?DoyoulearnEnglishthatway?最后一句话的whatabout可以换成howabout

Question

what about 与 how about
A: -Do you learn English by watching English Language videos?
B: -It's too hard to understand the voices.
C: -What about keeping a diary in English? Do you learn English that way?
最后一句话的what about可以换成how about吗,为什么?
不好意思，打字的时候犯了一些细节上的错误，更新后如下
A: -Do you learn English by watching English Language videos?
B: -No. It's too hard to understand the voices.
A: -What about keeping a diary in English? Do you learn English that way?

Answer 1

关于它们的用法,这里的一份资料很全面.
What about … 和 how about … 是英语口语中常用的两个省略句型,它们的意思和用法基本相同,常常用在以下场合.例如：
一、向对方提出建议或请求.例如：
1． How about going out for a walk?出去散散步好吗?
2． What about another cake?再吃块蛋糕好吗?
二、征询对方的看法或意见.例如：
1、 What about the playing the violin?（你认为）她的小提琴拉的怎么样?
2、 What about the TV play?那个电视剧怎么样?
三、询问天气或身体等情况.例如：
1、 What about the weather in your home town?你们家乡的气候如何?
2、 How about your uncle now?You can’t leave him by himself.你叔叔近来身体好吗?你们不能单独让他生活.
四、寒暄时用作承接上下文的转折语.例如：
I am from Beijing.What about you?我是北京人,你呢?
五、对所陈述的情况做出反诘,常给予对方一种暗示.例如：
——My memory is good.I’ve never forgotten anything.我的记忆力很好,从不忘记什么.
——What about that time you left your key to the office at home?那次你将办公室的要是忘在家里算是怎么回事呀?