Question

when同while 问题

Answer 1

[过去] 或 [现在]，甚至 [进行]，不能单凭 [when] 或 [while] 来次定，而是根据 [动词] 的 [时式]。 e.g. (1) My parents were having dinner when I got home. (一边是 [过去进行]， 一边是 [过去])。 (2) While he is busy talking
I am busy eating. (两边都是 [现在进行])。 (3) When he was talking
I ate all the food. (一边是 [过去进行]， 一边是 [过去])。 不过，如果不用 [进行式动词]，单凭 [when] 和 [while]， [when] 是指某一个时点 (certain point in time)，而 [while] 指一个时段 (a period of time)，所以有 [进行] 的感觉。 例如： (1) "he danced while I sang' 和 "he dances while I sing" 都有着两边当时都同时进行的意思。 (2) "he danced when I sang" 和 "he dances when I sing" 感觉上他可能只在我唱歌的时段中跳过舞。 由于 [while] 有进行的意思，所以比较适用于放在进行式前面 (即是 [进行]中的那一边)。 e.g. While I was taking a bath
the phone rang. The phone rings while I am taking a bath. 相对来说，由于 [when] 有[时点] (point in time) 的意思，所以比较适用于放在简单 [现在] 或 [过去] 式前面 (即是 [不是进行]中的那一边)。 e.g. When the phone rang
I was taking a bath. I am taking a bath when the phone rings. 如果两边都同时进行，[while] 比较好些。 e.g. (1) She was singing while taking a bath. (2) The phone was ringing nonstop while she was taking a bath.
参考: myself
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when系现在 also when系进行 while 系进行 When you realize that you must study for the exam
it will be too late. (现在(future)) When I was born
I was 10kg. (进行(past)) I was doing my homework while talking on the phone with my girlfriend.(进行(Now)
WHEN = 当 asking: 可时 例子: When you asked me about... When are you eing back? WHILE = 一会儿
一段时间 例子: While you were defrosting the meat
I was preparing the seasonings.