??Notes on the text
1.The Olympic Games will be held in our country in four years' time. 4年今后，奥林匹克运动会将在咱们国家举办。
the Olympic Games: 奥林匹克运动会
in four years' time: 4年之后
2. As a great many people……
a great many: 许多，润饰可数名词的复数方法
3. Workers will have completed the new roads by the end of this year. 工我们将在本年
will have completed：将来结束时，标明到将来某一时刻现已结束的动作
4. as the new buildings go up: as是连词，当“正值”讲，引出时刻状语从句
5. look forward to: 等待，期望，后接名词、代词或动名词
will(shall)+have done: 标明在将来某一时刻早年现已结束或一向持续的动作。
常用时刻状语：by the end of/by this time/in ……'s time等。
例句1：They will have finished this bridge in a year's time.
例句2：I shall have completed this novel by next time.
例句3：You will have learnt the results of the examination by then.
举办：A festival is held at Edingburgh every year.
举办： The next conference will be held in Geneva.
look forward to(等待)：I am looking forward to the summer holidays.
look out(留心)：Look out! A bus is coming.
look up(查阅)：I shall look up this word in a dictionary.
(造访): Don't forget to look me up when you return.