The Olympic Games will be held in our country in four years' time. §
| in four years’ time 四年之后§ | four years later 四年过去了 | four years ago 四年以前 |
|---|---|---|
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* As a great many people will be visiting the country, the government will be building new hotels , an immense stadium, and a new Olympic-standard swimming pool.
as/because 表原因并引出原因状语从句，because 任何时候都可代替 as（表原因时），来说明一种或几种原因，但 as 则不一定总能代替 because 因为as还可以接连续性动词表：当...时间。because 一般跟在主句后面，强调讲话的对象可能不知道的原因。
- As you can’t type the letter yourself, you’ll have to ask Susan to do it for you. 由于
- Jim’s trying to save more money because he wants to buy a car.因为
| a large number of people大量的人 | a great many people 大批的人 |
|---|---|
| He had included a large number of funny stories in the speech. 接可数 | Mr. Scott has sent a great many requests for spare parts. 接可数 |
| Will be done(将来时被动) | Will be doing(将来进行时) |
|---|---|
| Anyone who leaves litter in these woods will be prosecuted! | They will be singing at the Workers' Club. |
They will also be building new roads and a special railway line.
* Workers will have completed the new roads by the end of this year.
| by 到…为止，在…之前 |
|
|---|---|
|
by 是完成时的标志, 表示“并不晚于某时的任何时间”，不能与表示一段时间的名词名词连用，只能与表示时间点的名词或词组连用，用于肯定句与用于否定句有一定区别。
Everybody will be watching anxiously as the new buildings go up.
| be built 强调建造（被动） | go up （建筑物）被兴建起来，拔地而起 |
|---|---|
| The airport was built years ago... | Many new houses are going up in this district. |
We are all very excited and are looking forward to the Olympic Games because they have never been held before in this country.
look forward to + n./pron./doing sth. (很高兴的)盼望，期待
| look forward to… 期待、期望(带着对...美好的愿望) | expect 期待(无感情偏向) |
|---|---|
| Look forward to your letter.期待你的来信(期望和渴望) | They were expecting a valuable parcel of diamonds from South Africa. |