现在完成时的频率副词有哪些?

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现在完成时的频率副词有哪些?
现在完成时的频率副词有哪些?

现在完成时的频率副词有哪些?
1.频率副词是表示与次数,频率有关的副词,如:
always(总是),usually(经常),sometimes(有时),seldom(不常),once(一次),twice(两次),rarely(极少),frequently(经常)等.
2.频率副词用在be动词后.
It is usually hot in summer.
夏天天气通常是热的.
3.频率副词用在主要动词前.
My father usually walks home.
我的父亲经常步行回家.
4.频率副词用在助动词与主要动词之间.
I will always love you.
我将永远爱你.
5.频率副词用在OUGHT TO之间.
You ought often to write to your mother.
你应该常给你母亲写信.
6.在答句中,频率副词必须放在助动词前.
Do you often go there?
你常去那里吗?
(误)Yes,I do often.
是的,我常去.
(正)Yes,I often do.
是的,我常去.
7.never(从不),seldom(很少,不常)用于句首时,句子要用倒装形式以加强语气.
Never have I been there.
我从未去过那里.
Seldom do I watch TV.
我很少看电视.
频率副词位置记忆口诀:BE后
主动前
助主间

already;yet
just;before
ever;never
how long;for;since(for+段时间;since+点时间/一般过去时句子)
次数 (e.g. once;many times等等)
recently;lately
到目前为止(e.g. so far;up to now;up till noe;since then)...

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already;yet
just;before
ever;never
how long;for;since(for+段时间;since+点时间/一般过去时句子)
次数 (e.g. once;many times等等)
recently;lately
到目前为止(e.g. so far;up to now;up till noe;since then)
over/in/during the past/last time+段时间
by+现在时间(e.g. by now;by 2010)
句意 *有影响
(e.g. Have you found your watth?找到了吗,找到就好,没找到我帮你)

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