C) 表示“即將、正要”時(shí)，可用be about to do。強(qiáng)調(diào)近期內(nèi)或馬上要做的事，后常與when連用。ex: I was about to speak when you interrupted me.
D)"be to do"的5種用法：
a) 表示“按計(jì)劃、安排即將發(fā)生某事或打算做某事”。
例：She is to be seen in the lab on Monday.（星期一你準(zhǔn)會在實(shí)驗(yàn)室見到她。)
b) 該做或不該做的事情（語氣上接近于should, must, ought to, have to)，表示一種命令、規(guī)勸性語氣。
例：You are to go to bed and keep quiet, kids. Our guests are arriving in less than 5 minutes.（孩子們，你們必須 上床睡覺，不準(zhǔn)吵鬧。我們的客人5分鐘之內(nèi)就要到了。)
c) 能或不能發(fā)生的事情（接近c(diǎn)an, may)
例：How am I to pay such a debt?（我怎么可能還得起這么大的一筆債呢？)
d) 不可避免將要發(fā)生的事情，后來將要發(fā)生的事情。
例：I assure you that the matter _______ as quickly as possible. Have a little patience.
A. will be attended B. will be attended to
C. is attended D. is attended to
will be attended to關(guān)鍵的一點(diǎn)是：attend表示“處理，解決”時(shí)是不及物動詞，必須與to連用。另外，從上下文看，事情顯然尚未解決，所以應(yīng)該用將來時(shí)的被動語態(tài)。答案是B。
A) is to be B) can be C) will be D) has been
答案是A) is to be。全句的意思是：“如果要避免食品短缺，就必須作出更大努力來增加農(nóng)業(yè)產(chǎn)量�！�
E) 同樣可以表示“正要、將要”的意思的句型是be on the point of doing。 The coach is on the point of giving up the game because our team has been scored 7 points.
注意：
在 以if, when, as long as, as soon as, after, before, in case, until, unless 等連詞以及具有連詞作用的副詞（immediately, the moment, directly)等引導(dǎo)的狀語從句，一般用現(xiàn)在時(shí)代替將來時(shí)。強(qiáng)調(diào) 延續(xù)性或動態(tài)時(shí)，可用完成時(shí)。
例：I hope his health will have improved by the time you come back next year.（我希望到明年你回來的時(shí)候，他的身體已經(jīng)好多了。)
10. 將來進(jìn)行時(shí)(will be doing) 調(diào)在將來的某個(gè)具體時(shí)間正在發(fā)生的動作或事情。
ex: Don't worry, you won't miss her. She will be wearing a red T-shirt and a white skirt at that time.
11. 將來完成時(shí)(will have done) 表示從將來的某一時(shí)間開始、延續(xù)到另一個(gè)將來時(shí)間的動作或狀態(tài)，或是發(fā)生在某個(gè)將來時(shí)間，但對其后的另一個(gè) 將來時(shí)間有影響的動作或狀態(tài)。就好象把現(xiàn)在完成時(shí)平移到時(shí)間軸的將來時(shí)時(shí)段一樣。其用法從和過去及現(xiàn)在有關(guān)，變成了和將來及將來的將來有關(guān)。
ex: It is reported that by the end of this century the people of Chinese will have increased by 2 billion.
