各位朋友、大家好！
今天介紹動詞的未来完成式(future perfect tense)
通常、這個時態的特徵是'某未来時間之前的未来'；
它強調在另一個未来事件之前、某一個未来事件已完成；換句話說、相對於第二個未来事件、第一個未来事件已過去了。往往這個用未来完成式來表達的未来事件事實上是開始於過去、結束於未来；可以說我們是在談横跨了過去到未来的時間。
未来完成式一般都伴隨含有at、by、或before的時間副詞、表達未来事件的完成時間點、兹舉例如下：
1)含on, at, when的時間副詞：
On June 10 she will have been a widow for two years.（六月十日那天、她守寡已達兩年了）
At the end of this summer, I will have been away from home for ten years.(到這夏末為止、我離家已有十年了）
When he retires from his work, he will have made more than a million dollars.(當他退休時、他所賺之錢會超過一百萬元）
2)含有`By'的時間副詞：
My train arrives in New York at eight o'clock tonight. The plane I would like to take from there will have left by then.(今晚八點我的火車會到達紐約。在那之前、我想從紐約搭乘的飛機就已經離開了)
By the time the wrestling matches end, many of the spectators will have left.(到摔角比賽結束時、會有許多觀衆已經離開了）
By the end of the school year,we will have covered the entire grammar book.(學期結束前、我們會讀完整本文法書）
3)含有Before的時間副詞：
The cook will have gone home long before eight o'clock.(在八點之前、厨師早就回家了）
Before his vacation is over, he will have made many friends.(假期結束之前、他會交到了很多朋友）
They will have helped many people before their money runs out.(在他們的錢花光之前、他們將會幫助到了很多人）
**有些情况是句子想表達的意思、並不必然强調一個未来事件完成於另一個未来事件發生之前、這個時候、未来式與未来完成式可以交替使用。例子如下：
By the end of the school year we will have covered ( or will cover) the entire grammar book.
Before we leave New York we will have seen (or will see)every play on Broadway.
**倘若其中未来事件的完成、對整個句子的含意有真正的影響時、這個情况必須使用未来完成式。例句：
May I speak to your cook at eight o'clock tonight?
---I'm sorry. The cook will have gone home long before then.(這個句子一定要用未来完成式、表示厨師早已回家了）
**有時候未来完成式與未来式的不同、在於未来完成式是表達一個未来事件已經開始了；例句：
In the near future, many of the planets will have been explored（在不久的將来、很多行星會被開發)
(這裡用未来完成式、表示開發行動已經開始了）
In the near future, many of the planets will be explored.(這個句子用簡單未来式、表示開發行動尚未開始）
**如果有用already来表達未来事件、這時往往需要用未来完成式。例句:
When you wake up from your nap, I will have already done all the house work.（表示已經完成了所有的家務)
He will already have left by the time I get there.
(表示已經離開了）
**另外、一些帶有 'already' 的句子、未来完成式和現在完成式可以交换使用、句子的意思不變：
In some cases the process of the decay will
祝所有的朋友、諸事大吉、萬事如意、身體健康、闔家平安!!!
今天介紹動詞的未来完成式(future perfect tense)
通常、這個時態的特徵是'某未来時間之前的未来'；
它強調在另一個未来事件之前、某一個未来事件已完成；換句話說、相對於第二個未来事件、第一個未来事件已過去了。往往這個用未来完成式來表達的未来事件事實上是開始於過去、結束於未来；可以說我們是在談横跨了過去到未来的時間。
未来完成式一般都伴隨含有at、by、或before的時間副詞、表達未来事件的完成時間點、兹舉例如下：
1)含on, at, when的時間副詞：
On June 10 she will have been a widow for two years.（六月十日那天、她守寡已達兩年了）
At the end of this summer, I will have been away from home for ten years.(到這夏末為止、我離家已有十年了）
When he retires from his work, he will have made more than a million dollars.(當他退休時、他所賺之錢會超過一百萬元）
2)含有`By'的時間副詞：
My train arrives in New York at eight o'clock tonight. The plane I would like to take from there will have left by then.(今晚八點我的火車會到達紐約。在那之前、我想從紐約搭乘的飛機就已經離開了)
By the time the wrestling matches end, many of the spectators will have left.(到摔角比賽結束時、會有許多觀衆已經離開了）
By the end of the school year,we will have covered the entire grammar book.(學期結束前、我們會讀完整本文法書）
3)含有Before的時間副詞：
The cook will have gone home long before eight o'clock.(在八點之前、厨師早就回家了）
Before his vacation is over, he will have made many friends.(假期結束之前、他會交到了很多朋友）
They will have helped many people before their money runs out.(在他們的錢花光之前、他們將會幫助到了很多人）
**有些情况是句子想表達的意思、並不必然强調一個未来事件完成於另一個未来事件發生之前、這個時候、未来式與未来完成式可以交替使用。例子如下：
By the end of the school year we will have covered ( or will cover) the entire grammar book.
Before we leave New York we will have seen (or will see)every play on Broadway.
**倘若其中未来事件的完成、對整個句子的含意有真正的影響時、這個情况必須使用未来完成式。例句：
May I speak to your cook at eight o'clock tonight?
---I'm sorry. The cook will have gone home long before then.(這個句子一定要用未来完成式、表示厨師早已回家了）
**有時候未来完成式與未来式的不同、在於未来完成式是表達一個未来事件已經開始了；例句：
In the near future, many of the planets will have been explored（在不久的將来、很多行星會被開發)
(這裡用未来完成式、表示開發行動已經開始了）
In the near future, many of the planets will be explored.(這個句子用簡單未来式、表示開發行動尚未開始）
**如果有用already来表達未来事件、這時往往需要用未来完成式。例句:
When you wake up from your nap, I will have already done all the house work.（表示已經完成了所有的家務)
He will already have left by the time I get there.
(表示已經離開了）
**另外、一些帶有 'already' 的句子、未来完成式和現在完成式可以交换使用、句子的意思不變：
In some cases the process of the decay will
have begun (or has begun) already.
（某些情形、腐爛的過程已經開始了）
Before anyone discovers his fraudulent operations, he will have already gone on(or has already gone on) to another town.（在被人發覺他的詐欺行為時、他已經在前往別的城鎮的路上了）
未来完成進行式
這個時態不常用、它強調的是、在某未来事件之前的另一未来事件的發生時間區段、請看例句:
On April 2, 1972, we have been living in this house (for) exactly years.
They will have been touring for six months before they get to Japan.
The orchestra will have been practicing for three hours before the soloist gets there.
好、英文動詞的所有時態、基本上已介紹完畢、請大家多讀幾次、有不明白之處、直接寫郵件給歐吉桑
konzanyoo@gmail.com
記得關注歐吉桑的痞客邦帳號
（某些情形、腐爛的過程已經開始了）
Before anyone discovers his fraudulent operations, he will have already gone on(or has already gone on) to another town.（在被人發覺他的詐欺行為時、他已經在前往別的城鎮的路上了）
未来完成進行式
這個時態不常用、它強調的是、在某未来事件之前的另一未来事件的發生時間區段、請看例句:
On April 2, 1972, we have been living in this house (for) exactly years.
They will have been touring for six months before they get to Japan.
The orchestra will have been practicing for three hours before the soloist gets there.
好、英文動詞的所有時態、基本上已介紹完畢、請大家多讀幾次、有不明白之處、直接寫郵件給歐吉桑
konzanyoo@gmail.com
記得關注歐吉桑的痞客邦帳號
祝所有的朋友、諸事大吉、萬事如意、身體健康、闔家平安!!!
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